path: root/test/libsolidity/SolidityNameAndTypeResolution.cpp

/*
    This file is part of solidity.

    solidity is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    solidity is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with solidity.  If not, see <http://www.gnu.org/licenses/>.
*/
/**
 * @author Christian <c@ethdev.com>
 * @date 2014
 * Unit tests for the name and type resolution of the solidity parser.
 */

#include <test/libsolidity/ErrorCheck.h>

#include <test/TestHelper.h>

#include <libsolidity/parsing/Scanner.h>
#include <libsolidity/parsing/Parser.h>
#include <libsolidity/analysis/NameAndTypeResolver.h>
#include <libsolidity/analysis/StaticAnalyzer.h>
#include <libsolidity/analysis/PostTypeChecker.h>
#include <libsolidity/analysis/SyntaxChecker.h>
#include <libsolidity/interface/ErrorReporter.h>
#include <libsolidity/analysis/GlobalContext.h>
#include <libsolidity/analysis/TypeChecker.h>

#include <libdevcore/SHA3.h>

#include <string>

using namespace std;

namespace dev
{
namespace solidity
{
namespace test
{

namespace
{

pair<ASTPointer<SourceUnit>, std::shared_ptr<Error const>>
parseAnalyseAndReturnError(string const& _source, bool _reportWarnings = false, bool _insertVersionPragma = true, bool _allowMultipleErrors = false)
{
    // Silence compiler version warning
    string source = _insertVersionPragma ? "pragma solidity >=0.0;\n" + _source : _source;
    ErrorList errors;
    ErrorReporter errorReporter(errors);
    Parser parser(errorReporter);
    ASTPointer<SourceUnit> sourceUnit;
    // catch exceptions for a transition period
    try
    {
        sourceUnit = parser.parse(std::make_shared<Scanner>(CharStream(source)));
        if(!sourceUnit)
            BOOST_FAIL("Parsing failed in type checker test.");

        SyntaxChecker syntaxChecker(errorReporter);
        if (!syntaxChecker.checkSyntax(*sourceUnit))
            return make_pair(sourceUnit, errorReporter.errors().at(0));

        std::shared_ptr<GlobalContext> globalContext = make_shared<GlobalContext>();
        map<ASTNode const*, shared_ptr<DeclarationContainer>> scopes;
        NameAndTypeResolver resolver(globalContext->declarations(), scopes, errorReporter);
        solAssert(Error::containsOnlyWarnings(errorReporter.errors()), "");
        resolver.registerDeclarations(*sourceUnit);

        bool success = true;
        for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
            if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
            {
                globalContext->setCurrentContract(*contract);
                resolver.updateDeclaration(*globalContext->currentThis());
                resolver.updateDeclaration(*globalContext->currentSuper());
                if (!resolver.resolveNamesAndTypes(*contract))
                    success = false;
            }
        if (success)
            for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
                if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
                {
                    globalContext->setCurrentContract(*contract);
                    resolver.updateDeclaration(*globalContext->currentThis());

                    TypeChecker typeChecker(errorReporter);
                    bool success = typeChecker.checkTypeRequirements(*contract);
                    BOOST_CHECK(success || !errorReporter.errors().empty());
                }
        if (success)
            if (!PostTypeChecker(errorReporter).check(*sourceUnit))
                success = false;
        if (success)
            if (!StaticAnalyzer(errorReporter).analyze(*sourceUnit))
                success = false;
        if (errorReporter.errors().size() > 1 && !_allowMultipleErrors)
            BOOST_FAIL("Multiple errors found");
        for (auto const& currentError: errorReporter.errors())
        {
            if (
                (_reportWarnings && currentError->type() == Error::Type::Warning) ||
                (!_reportWarnings && currentError->type() != Error::Type::Warning)
            )
                return make_pair(sourceUnit, currentError);
        }
    }
    catch (InternalCompilerError const& _e)
    {
        string message("Internal compiler error");
        if (string const* description = boost::get_error_info<errinfo_comment>(_e))
            message += ": " + *description;
        BOOST_FAIL(message);
    }
    catch (Error const& _e)
    {
        return make_pair(sourceUnit, std::make_shared<Error const>(_e));
    }
    catch (...)
    {
        BOOST_FAIL("Unexpected exception.");
    }
    return make_pair(sourceUnit, nullptr);
}

ASTPointer<SourceUnit> parseAndAnalyse(string const& _source)
{
    auto sourceAndError = parseAnalyseAndReturnError(_source);
    BOOST_REQUIRE(!!sourceAndError.first);
    BOOST_REQUIRE(!sourceAndError.second);
    return sourceAndError.first;
}

bool success(string const& _source)
{
    return !parseAnalyseAndReturnError(_source).second;
}

Error expectError(std::string const& _source, bool _warning = false, bool _allowMultiple = false)
{
    auto sourceAndError = parseAnalyseAndReturnError(_source, _warning, true, _allowMultiple);
    BOOST_REQUIRE(!!sourceAndError.second);
    BOOST_REQUIRE(!!sourceAndError.first);
    return *sourceAndError.second;
}

static ContractDefinition const* retrieveContract(ASTPointer<SourceUnit> _source, unsigned index)
{
    ContractDefinition* contract;
    unsigned counter = 0;
    for (ASTPointer<ASTNode> const& node: _source->nodes())
        if ((contract = dynamic_cast<ContractDefinition*>(node.get())) && counter == index)
            return contract;

    return nullptr;
}

static FunctionTypePointer retrieveFunctionBySignature(
    ContractDefinition const& _contract,
    std::string const& _signature
)
{
    FixedHash<4> hash(dev::keccak256(_signature));
    return _contract.interfaceFunctions()[hash];
}

}

#define CHECK_ERROR_OR_WARNING(text, typ, substring, warning, allowMulti) \
do \
{ \
    Error err = expectError((text), (warning), (allowMulti)); \
    BOOST_CHECK(err.type() == (Error::Type::typ)); \
    BOOST_CHECK(searchErrorMessage(err, (substring))); \
} while(0)

// [checkError(text, type, substring)] asserts that the compilation down to typechecking
// emits an error of type [type] and with a message containing [substring].
#define CHECK_ERROR(text, type, substring) \
CHECK_ERROR_OR_WARNING(text, type, substring, false, false)

// [checkError(text, type, substring)] asserts that the compilation down to typechecking
// emits an error of type [type] and with a message containing [substring].
#define CHECK_ERROR_ALLOW_MULTI(text, type, substring) \
CHECK_ERROR_OR_WARNING(text, type, substring, false, true)

// [checkWarning(text, substring)] asserts that the compilation down to typechecking
// emits a warning and with a message containing [substring].
#define CHECK_WARNING(text, substring) \
CHECK_ERROR_OR_WARNING(text, Warning, substring, true, false)

// [checkWarningAllowMulti(text, substring)] aserts that the compilation down to typechecking
// emits a warning and with a message containing [substring].
#define CHECK_WARNING_ALLOW_MULTI(text, substring) \
CHECK_ERROR_OR_WARNING(text, Warning, substring, true, true)

// [checkSuccess(text)] asserts that the compilation down to typechecking succeeds.
#define CHECK_SUCCESS(text) do { BOOST_CHECK(success((text))); } while(0)

#define CHECK_SUCCESS_NO_WARNINGS(text) \
do \
{ \
    auto sourceAndError = parseAnalyseAndReturnError((text), true); \
    BOOST_CHECK(sourceAndError.second == nullptr); \
} \
while(0)


BOOST_AUTO_TEST_SUITE(SolidityNameAndTypeResolution)

BOOST_AUTO_TEST_CASE(smoke_test)
{
    char const* text = R"(
        contract test {
            uint256 stateVariable1;
            function fun(uint256 arg1) { uint256 y; y = arg1; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(double_stateVariable_declaration)
{
    char const* text = R"(
        contract test {
            uint256 variable;
            uint128 variable;
        }
    )";
    CHECK_ERROR(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(double_function_declaration)
{
    char const* text = R"(
        contract test {
            function fun() { }
            function fun() { }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(double_variable_declaration)
{
    char const* text = R"(
        contract test {
            function f() {
                uint256 x;
                if (true)   { uint256 x; }
            }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(name_shadowing)
{
    char const* text = R"(
        contract test {
            uint256 variable;
            function f() { uint32 variable; variable = 2; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(name_references)
{
    char const* text = R"(
        contract test {
            uint256 variable;
            function f(uint256) returns (uint out) { f(variable); test; out; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(undeclared_name)
{
    char const* text = R"(
        contract test {
            uint256 variable;
            function f(uint256 arg) {
                f(notfound);
            }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(reference_to_later_declaration)
{
    char const* text = R"(
        contract test {
            function g() { f(); }
            function f() {}
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(struct_definition_directly_recursive)
{
    char const* text = R"(
        contract test {
            struct MyStructName {
                address addr;
                MyStructName x;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(struct_definition_indirectly_recursive)
{
    char const* text = R"(
        contract test {
            struct MyStructName1 {
                address addr;
                uint256 count;
                MyStructName2 x;
            }
            struct MyStructName2 {
                MyStructName1 x;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(struct_definition_not_really_recursive)
{
    char const* text = R"(
        contract test {
            struct s1 { uint a; }
            struct s2 { s1 x; s1 y; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(struct_definition_recursion_via_mapping)
{
    char const* text = R"(
        contract test {
                struct MyStructName1 {
                    address addr;
                    uint256 count;
                    mapping(uint => MyStructName1) x;
                }
            }
 )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(type_inference_smoke_test)
{
    char const* text = R"(
        contract test {
            function f(uint256 arg1, uint32 arg2) returns (bool ret) {
                var x = arg1 + arg2 == 8; ret = x;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(type_checking_return)
{
    char const* text = R"(
        contract test {
            function f() returns (bool r) { return 1 >= 2; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(type_checking_return_wrong_number)
{
    char const* text = R"(
        contract test {
            function f() returns (bool r1, bool r2) { return 1 >= 2; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(type_checking_return_wrong_type)
{
    char const* text = R"(
        contract test {
            function f() returns (uint256 r) { return 1 >= 2; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(type_checking_function_call)
{
    char const* text = R"(
        contract test {
            function f() returns (bool) { return g(12, true) == 3; }
            function g(uint256, bool) returns (uint256) { }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(type_conversion_for_comparison)
{
    char const* text = R"(
        contract test {
            function f() { uint32(2) == int64(2); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(type_conversion_for_comparison_invalid)
{
    char const* text = R"(
        contract test {
            function f() { int32(2) == uint64(2); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(type_inference_explicit_conversion)
{
    char const* text = R"(
        contract test {
            function f() returns (int256 r) { var x = int256(uint32(2)); return x; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(large_string_literal)
{
    char const* text = R"(
        contract test {
            function f() { var x = "123456789012345678901234567890123"; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(balance)
{
    char const* text = R"(
        contract test {
            function fun() {
                uint256 x = address(0).balance;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(balance_invalid)
{
    char const* text = R"(
        contract test {
            function fun() {
                address(0).balance = 7;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(assignment_to_mapping)
{
    char const* text = R"(
        contract test {
            struct str {
                mapping(uint=>uint) map;
            }
            str data;
            function fun() {
                var a = data.map;
                data.map = a;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(assignment_to_struct)
{
    char const* text = R"(
        contract test {
            struct str {
                mapping(uint=>uint) map;
            }
            str data;
            function fun() {
                var a = data;
                data = a;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(returns_in_constructor)
{
    char const* text = R"(
        contract test {
            function test() returns (uint a) { }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(forward_function_reference)
{
    char const* text = R"(
        contract First {
            function fun() returns (bool) {
                return Second(1).fun(1, true, 3) > 0;
            }
        }
        contract Second {
            function fun(uint, bool, uint) returns (uint) {
                if (First(2).fun() == true) return 1;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(comparison_bitop_precedence)
{
    char const* text = R"(
        contract First {
            function fun() returns (bool ret) {
                return 1 & 2 == 8 & 9 && 1 ^ 2 < 4 | 6;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(function_no_implementation)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract test {
            function functionName(bytes32 input) returns (bytes32 out);
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name Resolving failed");
    std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
    ContractDefinition* contract = dynamic_cast<ContractDefinition*>(nodes[1].get());
    BOOST_REQUIRE(contract);
    BOOST_CHECK(!contract->annotation().isFullyImplemented);
    BOOST_CHECK(!contract->definedFunctions()[0]->isImplemented());
}

BOOST_AUTO_TEST_CASE(abstract_contract)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract base { function foo(); }
        contract derived is base { function foo() {} }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name Resolving failed");
    std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
    ContractDefinition* base = dynamic_cast<ContractDefinition*>(nodes[1].get());
    ContractDefinition* derived = dynamic_cast<ContractDefinition*>(nodes[2].get());
    BOOST_REQUIRE(base);
    BOOST_CHECK(!base->annotation().isFullyImplemented);
    BOOST_CHECK(!base->definedFunctions()[0]->isImplemented());
    BOOST_REQUIRE(derived);
    BOOST_CHECK(derived->annotation().isFullyImplemented);
    BOOST_CHECK(derived->definedFunctions()[0]->isImplemented());
}

BOOST_AUTO_TEST_CASE(abstract_contract_with_overload)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract base { function foo(bool); }
        contract derived is base { function foo(uint) {} }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name Resolving failed");
    std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
    ContractDefinition* base = dynamic_cast<ContractDefinition*>(nodes[1].get());
    ContractDefinition* derived = dynamic_cast<ContractDefinition*>(nodes[2].get());
    BOOST_REQUIRE(base);
    BOOST_CHECK(!base->annotation().isFullyImplemented);
    BOOST_REQUIRE(derived);
    BOOST_CHECK(!derived->annotation().isFullyImplemented);
}

BOOST_AUTO_TEST_CASE(create_abstract_contract)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract base { function foo(); }
        contract derived {
            base b;
            function foo() { b = new base(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(abstract_contract_constructor_args_optional)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract BaseBase { function BaseBase(uint j); }
        contract base is BaseBase { function foo(); }
        contract derived is base {
            function derived(uint i) BaseBase(i){}
            function foo() {}
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name resolving failed");
    std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
    BOOST_CHECK_EQUAL(nodes.size(), 4);
    ContractDefinition* derived = dynamic_cast<ContractDefinition*>(nodes[3].get());
    BOOST_REQUIRE(derived);
    BOOST_CHECK(!derived->annotation().isFullyImplemented);
}

BOOST_AUTO_TEST_CASE(abstract_contract_constructor_args_not_provided)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract BaseBase { function BaseBase(uint); }
        contract base is BaseBase { function foo(); }
        contract derived is base {
            function derived(uint) {}
            function foo() {}
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name resolving failed");
    std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
    BOOST_CHECK_EQUAL(nodes.size(), 4);
    ContractDefinition* derived = dynamic_cast<ContractDefinition*>(nodes[3].get());
    BOOST_REQUIRE(derived);
    BOOST_CHECK(!derived->annotation().isFullyImplemented);
}

BOOST_AUTO_TEST_CASE(redeclare_implemented_abstract_function_as_abstract)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract base { function foo(); }
        contract derived is base { function foo() {} }
        contract wrong is derived { function foo(); }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(implement_abstract_via_constructor)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract base { function foo(); }
        contract foo is base { function foo() {} }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name resolving failed");
    std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
    BOOST_CHECK_EQUAL(nodes.size(), 3);
    ContractDefinition* derived = dynamic_cast<ContractDefinition*>(nodes[2].get());
    BOOST_REQUIRE(derived);
    BOOST_CHECK(!derived->annotation().isFullyImplemented);
}

BOOST_AUTO_TEST_CASE(function_canonical_signature)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract Test {
            function foo(uint256 arg1, uint64 arg2, bool arg3) returns (uint256 ret) {
                ret = arg1 + arg2;
            }
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name Resolving failed");
    for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
        if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
        {
            auto functions = contract->definedFunctions();
            BOOST_CHECK_EQUAL("foo(uint256,uint64,bool)", functions[0]->externalSignature());
        }
}

BOOST_AUTO_TEST_CASE(function_canonical_signature_type_aliases)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract Test {
            function boo(uint, bytes32, address) returns (uint ret) {
                ret = 5;
            }
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name Resolving failed");
    for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
        if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
        {
            auto functions = contract->definedFunctions();
            if (functions.empty())
                continue;
            BOOST_CHECK_EQUAL("boo(uint256,bytes32,address)", functions[0]->externalSignature());
        }
}

BOOST_AUTO_TEST_CASE(function_external_types)
{
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract C {
            uint a;
        }
        contract Test {
            function boo(uint, bool, bytes8, bool[2], uint[], C, address[]) external returns (uint ret) {
                ret = 5;
            }
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name Resolving failed");
    for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
        if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
        {
            auto functions = contract->definedFunctions();
            if (functions.empty())
                continue;
            BOOST_CHECK_EQUAL("boo(uint256,bool,bytes8,bool[2],uint256[],address,address[])", functions[0]->externalSignature());
        }
}

BOOST_AUTO_TEST_CASE(enum_external_type)
{
    // bug #1801
    ASTPointer<SourceUnit> sourceUnit;
    char const* text = R"(
        contract Test {
            enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
            function boo(ActionChoices enumArg) external returns (uint ret) {
                ret = 5;
            }
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(sourceUnit = parseAndAnalyse(text), "Parsing and name Resolving failed");
    for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
        if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
        {
            auto functions = contract->definedFunctions();
            if (functions.empty())
                continue;
            BOOST_CHECK_EQUAL("boo(uint8)", functions[0]->externalSignature());
        }
}

BOOST_AUTO_TEST_CASE(function_external_call_allowed_conversion)
{
    char const* text = R"(
        contract C {}
        contract Test {
            function externalCall() {
                C arg;
                this.g(arg);
            }
            function g (C c) external {}
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(function_external_call_not_allowed_conversion)
{
    char const* text = R"(
        contract C {}
        contract Test {
            function externalCall() {
                address arg;
                this.g(arg);
            }
            function g (C c) external {}
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(function_internal_allowed_conversion)
{
    char const* text = R"(
        contract C {
            uint a;
        }
        contract Test {
            C a;
            function g (C c) {}
            function internalCall() {
                g(a);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(function_internal_not_allowed_conversion)
{
    char const* text = R"(
        contract C {
            uint a;
        }
        contract Test {
            address a;
            function g (C c) {}
            function internalCall() {
                g(a);
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(hash_collision_in_interface)
{
    char const* text = R"(
        contract test {
            function gsf() { }
            function tgeo() { }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(inheritance_basic)
{
    char const* text = R"(
        contract base { uint baseMember; struct BaseType { uint element; } }
        contract derived is base {
            BaseType data;
            function f() { baseMember = 7; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inheritance_diamond_basic)
{
    char const* text = R"(
        contract root { function rootFunction() {} }
        contract inter1 is root { function f() {} }
        contract inter2 is root { function f() {} }
        contract derived is root, inter2, inter1 {
            function g() { f(); rootFunction(); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(cyclic_inheritance)
{
    char const* text = R"(
        contract A is B { }
        contract B is A { }
    )";
    CHECK_ERROR_ALLOW_MULTI(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(legal_override_direct)
{
    char const* text = R"(
        contract B { function f() {} }
        contract C is B { function f(uint i) {} }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(legal_override_indirect)
{
    char const* text = R"(
        contract A { function f(uint a) {} }
        contract B { function f() {} }
        contract C is A, B { }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(illegal_override_visibility)
{
    char const* text = R"(
        contract B { function f() internal {} }
        contract C is B { function f() public {} }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(illegal_override_constness)
{
    char const* text = R"(
        contract B { function f() constant {} }
        contract C is B { function f() {} }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(complex_inheritance)
{
    char const* text = R"(
        contract A { function f() { uint8 x = C(0).g(); } }
        contract B { function f() {} function g() returns (uint8) {} }
        contract C is A, B { }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(constructor_visibility)
{
    // The constructor of a base class should not be visible in the derived class
    char const* text = R"(
        contract A { function A() { } }
        contract B is A { function f() { A x = A(0); } }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(overriding_constructor)
{
    // It is fine to "override" constructor of a base class since it is invisible
    char const* text = R"(
        contract A { function A() { } }
        contract B is A { function A() returns (uint8 r) {} }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(missing_base_constructor_arguments)
{
    char const* text = R"(
        contract A { function A(uint a) { } }
        contract B is A { }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(base_constructor_arguments_override)
{
    char const* text = R"(
        contract A { function A(uint a) { } }
        contract B is A { }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(implicit_derived_to_base_conversion)
{
    char const* text = R"(
        contract A { }
        contract B is A {
            function f() { A a = B(1); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(implicit_base_to_derived_conversion)
{
    char const* text = R"(
        contract A { }
        contract B is A {
            function f() { B b = A(1); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(super_excludes_current_contract)
{
    char const* text = R"(
        contract A {
            function b() {}
        }

        contract B is A {
            function f() {
                super.f();
            }
        }
    )";

    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(function_modifier_invocation)
{
    char const* text = R"(
        contract B {
            function f() mod1(2, true) mod2("0123456") { }
            modifier mod1(uint a, bool b) { if (b) _; }
            modifier mod2(bytes7 a) { while (a == "1234567") _; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(invalid_function_modifier_type)
{
    char const* text = R"(
        contract B {
            function f() mod1(true) { }
            modifier mod1(uint a) { if (a > 0) _; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(function_modifier_invocation_parameters)
{
    char const* text = R"(
        contract B {
            function f(uint8 a) mod1(a, true) mod2(r) returns (bytes7 r) { }
            modifier mod1(uint a, bool b) { if (b) _; }
            modifier mod2(bytes7 a) { while (a == "1234567") _; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(function_modifier_invocation_local_variables)
{
    char const* text = R"(
        contract B {
            function f() mod(x) { uint x = 7; }
            modifier mod(uint a) { if (a > 0) _; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(legal_modifier_override)
{
    char const* text = R"(
        contract A { modifier mod(uint a) { _; } }
        contract B is A { modifier mod(uint a) { _; } }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(illegal_modifier_override)
{
    char const* text = R"(
        contract A { modifier mod(uint a) { _; } }
        contract B is A { modifier mod(uint8 a) { _; } }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(modifier_overrides_function)
{
    char const* text = R"(
        contract A { modifier mod(uint a) { _; } }
        contract B is A { function mod(uint a) { } }
    )";
    // Error: Identifier already declared.
    // Error: Override changes modifier to function.
    CHECK_ERROR_ALLOW_MULTI(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(function_overrides_modifier)
{
    char const* text = R"(
        contract A { function mod(uint a) { } }
        contract B is A { modifier mod(uint a) { _; } }
    )";
    // Error: Identifier already declared.
    // Error: Override changes function to modifier.
    CHECK_ERROR_ALLOW_MULTI(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(modifier_returns_value)
{
    char const* text = R"(
        contract A {
            function f(uint a) mod(2) returns (uint r) { }
            modifier mod(uint a) { _; return 7; }
        }
    )";
    CHECK_ERROR(text, TypeError, "Return arguments not allowed.");
}

BOOST_AUTO_TEST_CASE(state_variable_accessors)
{
    char const* text = R"(
        contract test {
            function fun() {
                uint64(2);
            }
            uint256 public foo;
            mapping(uint=>bytes4) public map;
            mapping(uint=>mapping(uint=>bytes4)) public multiple_map;
        }
    )";

    ASTPointer<SourceUnit> source;
    ContractDefinition const* contract;
    ETH_TEST_CHECK_NO_THROW(source = parseAndAnalyse(text), "Parsing and Resolving names failed");
    BOOST_REQUIRE((contract = retrieveContract(source, 0)) != nullptr);
    FunctionTypePointer function = retrieveFunctionBySignature(*contract, "foo()");
    BOOST_REQUIRE(function && function->hasDeclaration());
    auto returnParams = function->returnParameterTypes();
    BOOST_CHECK_EQUAL(returnParams.at(0)->canonicalName(false), "uint256");
    BOOST_CHECK(function->isConstant());

    function = retrieveFunctionBySignature(*contract, "map(uint256)");
    BOOST_REQUIRE(function && function->hasDeclaration());
    auto params = function->parameterTypes();
    BOOST_CHECK_EQUAL(params.at(0)->canonicalName(false), "uint256");
    returnParams = function->returnParameterTypes();
    BOOST_CHECK_EQUAL(returnParams.at(0)->canonicalName(false), "bytes4");
    BOOST_CHECK(function->isConstant());

    function = retrieveFunctionBySignature(*contract, "multiple_map(uint256,uint256)");
    BOOST_REQUIRE(function && function->hasDeclaration());
    params = function->parameterTypes();
    BOOST_CHECK_EQUAL(params.at(0)->canonicalName(false), "uint256");
    BOOST_CHECK_EQUAL(params.at(1)->canonicalName(false), "uint256");
    returnParams = function->returnParameterTypes();
    BOOST_CHECK_EQUAL(returnParams.at(0)->canonicalName(false), "bytes4");
    BOOST_CHECK(function->isConstant());
}

BOOST_AUTO_TEST_CASE(function_clash_with_state_variable_accessor)
{
    char const* text = R"(
        contract test {
            function fun() {
                uint64(2);
            }
            uint256 foo;
            function foo() {}
        }
    )";
    CHECK_ERROR(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(private_state_variable)
{
    char const* text = R"(
        contract test {
            function fun() {
                uint64(2);
            }
            uint256 private foo;
            uint256 internal bar;
        }
    )";

    ASTPointer<SourceUnit> source;
    ContractDefinition const* contract;
    ETH_TEST_CHECK_NO_THROW(source = parseAndAnalyse(text), "Parsing and Resolving names failed");
    BOOST_CHECK((contract = retrieveContract(source, 0)) != nullptr);
    FunctionTypePointer function;
    function = retrieveFunctionBySignature(*contract, "foo()");
    BOOST_CHECK_MESSAGE(function == nullptr, "Accessor function of a private variable should not exist");
    function = retrieveFunctionBySignature(*contract, "bar()");
    BOOST_CHECK_MESSAGE(function == nullptr, "Accessor function of an internal variable should not exist");
}

BOOST_AUTO_TEST_CASE(missing_state_variable)
{
    char const* text = R"(
        contract Scope {
            function getStateVar() constant returns (uint stateVar) {
                stateVar = Scope.stateVar; // should fail.
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}


BOOST_AUTO_TEST_CASE(base_class_state_variable_accessor)
{
    // test for issue #1126 https://github.com/ethereum/cpp-ethereum/issues/1126
    char const* text = R"(
        contract Parent {
            uint256 public m_aMember;
        }
        contract Child is Parent {
            function foo() returns (uint256) { return Parent.m_aMember; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(struct_accessor_one_array_only)
{
    char const* sourceCode = R"(
        contract test {
            struct Data { uint[15] m_array; }
            Data public data;
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(base_class_state_variable_internal_member)
{
    char const* text = R"(
        contract Parent {
            uint256 internal m_aMember;
        }
        contract Child is Parent{
            function foo() returns (uint256) { return Parent.m_aMember; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(state_variable_member_of_wrong_class1)
{
    char const* text = R"(
        contract Parent1 {
            uint256 internal m_aMember1;
        }
        contract Parent2 is Parent1{
            uint256 internal m_aMember2;
        }
        contract Child is Parent2{
            function foo() returns (uint256) { return Parent2.m_aMember1; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(state_variable_member_of_wrong_class2)
{
    char const* text = R"(
        contract Parent1 {
            uint256 internal m_aMember1;
        }
        contract Parent2 is Parent1 {
            uint256 internal m_aMember2;
        }
        contract Child is Parent2 {
            function foo() returns (uint256) { return Child.m_aMember2; }
            uint256 public m_aMember3;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(fallback_function)
{
    char const* text = R"(
        contract C {
            uint x;
            function() { x = 2; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(fallback_function_with_arguments)
{
    char const* text = R"(
        contract C {
            uint x;
            function(uint a) { x = 2; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(fallback_function_in_library)
{
    char const* text = R"(
        library C {
            function() {}
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(fallback_function_with_return_parameters)
{
    char const* text = R"(
        contract C {
            function() returns (uint) { }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(fallback_function_with_constant_modifier)
{
    char const* text = R"(
        contract C {
            uint x;
            function() constant { x = 2; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(fallback_function_twice)
{
    char const* text = R"(
        contract C {
            uint x;
            function() { x = 2; }
            function() { x = 3; }
        }
    )";
    CHECK_ERROR_ALLOW_MULTI(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(fallback_function_inheritance)
{
    char const* text = R"(
        contract A {
            uint x;
            function() { x = 1; }
        }
        contract C is A {
            function() { x = 2; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(event)
{
    char const* text = R"(
        contract c {
            event e(uint indexed a, bytes3 indexed s, bool indexed b);
            function f() { e(2, "abc", true); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(event_too_many_indexed)
{
    char const* text = R"(
        contract c {
            event e(uint indexed a, bytes3 indexed b, bool indexed c, uint indexed d);
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(anonymous_event_four_indexed)
{
    char const* text = R"(
        contract c {
            event e(uint indexed a, bytes3 indexed b, bool indexed c, uint indexed d) anonymous;
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(anonymous_event_too_many_indexed)
{
    char const* text = R"(
        contract c {
            event e(uint indexed a, bytes3 indexed b, bool indexed c, uint indexed d, uint indexed e) anonymous;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(events_with_same_name)
{
    char const* text = R"(
        contract TestIt {
            event A();
            event A(uint i);
        }
    )";
    BOOST_CHECK(success(text));
}

BOOST_AUTO_TEST_CASE(event_call)
{
    char const* text = R"(
        contract c {
            event e(uint a, bytes3 indexed s, bool indexed b);
            function f() { e(2, "abc", true); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(event_function_inheritance_clash)
{
    char const* text = R"(
        contract A {
            function dup() returns (uint) {
                return 1;
            }
        }
        contract B {
            event dup();
        }
        contract C is A, B {
        }
    )";
    CHECK_ERROR(text, DeclarationError, "Identifier already declared.");
}

BOOST_AUTO_TEST_CASE(function_event_inheritance_clash)
{
    char const* text = R"(
        contract B {
            event dup();
        }
        contract A {
            function dup() returns (uint) {
                return 1;
            }
        }
        contract C is B, A {
        }
    )";
    CHECK_ERROR(text, DeclarationError, "Identifier already declared.");
}

BOOST_AUTO_TEST_CASE(function_event_in_contract_clash)
{
    char const* text = R"(
        contract A {
            event dup();
            function dup() returns (uint) {
                return 1;
            }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "Identifier already declared.");
}

BOOST_AUTO_TEST_CASE(event_inheritance)
{
    char const* text = R"(
        contract base {
            event e(uint a, bytes3 indexed s, bool indexed b);
        }
        contract c is base {
            function f() { e(2, "abc", true); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(multiple_events_argument_clash)
{
    char const* text = R"(
        contract c {
            event e1(uint a, uint e1, uint e2);
            event e2(uint a, uint e1, uint e2);
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(access_to_default_function_visibility)
{
    char const* text = R"(
        contract c {
            function f() {}
        }
        contract d {
            function g() { c(0).f(); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(access_to_internal_function)
{
    char const* text = R"(
        contract c {
            function f() internal {}
        }
        contract d {
            function g() { c(0).f(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(access_to_default_state_variable_visibility)
{
    char const* text = R"(
        contract c {
            uint a;
        }
        contract d {
            function g() { c(0).a(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(access_to_internal_state_variable)
{
    char const* text = R"(
        contract c {
            uint public a;
        }
        contract d {
            function g() { c(0).a(); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(error_count_in_named_args)
{
    char const* sourceCode = R"(
        contract test {
            function a(uint a, uint b) returns (uint r) {
                r = a + b;
            }
            function b() returns (uint r) {
                r = a({a: 1});
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(empty_in_named_args)
{
    char const* sourceCode = R"(
        contract test {
            function a(uint a, uint b) returns (uint r) {
                r = a + b;
            }
            function b() returns (uint r) {
                r = a({});
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(duplicate_parameter_names_in_named_args)
{
    char const* sourceCode = R"(
        contract test {
            function a(uint a, uint b) returns (uint r) {
                r = a + b;
            }
            function b() returns (uint r) {
                r = a({a: 1, a: 2});
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(invalid_parameter_names_in_named_args)
{
    char const* sourceCode = R"(
        contract test {
            function a(uint a, uint b) returns (uint r) {
                r = a + b;
            }
            function b() returns (uint r) {
                r = a({a: 1, c: 2});
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(empty_name_input_parameter)
{
    char const* text = R"(
        contract test {
            function f(uint) { }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(constant_input_parameter)
{
    char const* text = R"(
        contract test {
            function f(uint[] constant a) { }
        }
    )";
    CHECK_ERROR_ALLOW_MULTI(text, TypeError, "Illegal use of \"constant\" specifier.");
}

BOOST_AUTO_TEST_CASE(empty_name_return_parameter)
{
    char const* text = R"(
        contract test {
            function f() returns(bool) { }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(empty_name_input_parameter_with_named_one)
{
    char const* text = R"(
        contract test {
            function f(uint, uint k) returns(uint ret_k) {
                return k;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(empty_name_return_parameter_with_named_one)
{
    char const* text = R"(
        contract test {
            function f() returns(uint ret_k, uint) {
                return 5;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(disallow_declaration_of_void_type)
{
    char const* sourceCode = R"(
        contract c {
            function f() { var (x) = f(); }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(overflow_caused_by_ether_units)
{
    char const* sourceCodeFine = R"(
        contract c {
            function c () {
                a = 115792089237316195423570985008687907853269984665640564039458;
            }
            uint256 a;
        }
    )";
    ETH_TEST_CHECK_NO_THROW(parseAndAnalyse(sourceCodeFine),
        "Parsing and Resolving names failed");
    char const* sourceCode = R"(
        contract c {
            function c () {
                 a = 115792089237316195423570985008687907853269984665640564039458 ether;
            }
            uint256 a;
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(exp_operator_exponent_too_big)
{
    char const* sourceCode = R"(
        contract test {
            function f() returns(uint d) { return 2 ** 10000000000; }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(exp_warn_literal_base)
{
    char const* sourceCode = R"(
        contract test {
            function f() returns(uint) {
                uint8 x = 100;
                return 10**x;
            }
        }
    )";
    CHECK_WARNING(sourceCode, "might overflow");
    sourceCode = R"(
        contract test {
            function f() returns(uint) {
                uint8 x = 100;
                return uint8(10)**x;
            }
        }
    )";
    CHECK_SUCCESS(sourceCode);
    sourceCode = R"(
        contract test {
            function f() returns(uint) {
                return 2**80;
            }
        }
    )";
    CHECK_SUCCESS(sourceCode);
}

BOOST_AUTO_TEST_CASE(enum_member_access)
{
    char const* text = R"(
        contract test {
            enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
            function test()
            {
                choices = ActionChoices.GoStraight;
            }
            ActionChoices choices;
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(enum_member_access_accross_contracts)
{
    char const* text = R"(
        contract Interface {
            enum MyEnum { One, Two }
        }
        contract Impl {
            function test() returns (Interface.MyEnum) {
                return Interface.MyEnum.One;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(enum_invalid_member_access)
{
    char const* text = R"(
        contract test {
            enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
            function test() {
                choices = ActionChoices.RunAroundWavingYourHands;
            }
            ActionChoices choices;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(enum_invalid_direct_member_access)
{
    char const* text = R"(
        contract test {
            enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
            function test() {
                choices = Sit;
            }
            ActionChoices choices;
        }
    )";
    CHECK_ERROR(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(enum_explicit_conversion_is_okay)
{
    char const* text = R"(
        contract test {
            enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
            function test() {
                a = uint256(ActionChoices.GoStraight);
                b = uint64(ActionChoices.Sit);
            }
            uint256 a;
            uint64 b;
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(int_to_enum_explicit_conversion_is_okay)
{
    char const* text = R"(
        contract test {
            enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
            function test() {
                a = 2;
                b = ActionChoices(a);
            }
            uint256 a;
            ActionChoices b;
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(enum_implicit_conversion_is_not_okay_256)
{
    char const* text = R"(
        contract test {
            enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
            function test() {
                a = ActionChoices.GoStraight;
            }
            uint256 a;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(enum_implicit_conversion_is_not_okay_64)
{
    char const* text = R"(
        contract test {
            enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
            function test() {
                b = ActionChoices.Sit;
            }
            uint64 b;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(enum_to_enum_conversion_is_not_okay)
{
    char const* text = R"(
        contract test {
            enum Paper { Up, Down, Left, Right }
            enum Ground { North, South, West, East }
            function test() {
                Ground(Paper.Up);
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(enum_duplicate_values)
{
    char const* text = R"(
            contract test {
                enum ActionChoices { GoLeft, GoRight, GoLeft, Sit }
            }
    )";
    CHECK_ERROR(text, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(enum_name_resolution_under_current_contract_name)
{
    char const* text = R"(
        contract A {
            enum Foo {
                First,
                Second
            }

            function a() {
                A.Foo;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(private_visibility)
{
    char const* sourceCode = R"(
        contract base {
            function f() private {}
        }
        contract derived is base {
            function g() { f(); }
        }
    )";
    CHECK_ERROR(sourceCode, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(private_visibility_via_explicit_base_access)
{
    char const* sourceCode = R"(
        contract base {
            function f() private {}
        }
        contract derived is base {
            function g() { base.f(); }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_visibility)
{
    char const* sourceCode = R"(
        contract c {
            function f() external {}
            function g() { f(); }
        }
    )";
    CHECK_ERROR(sourceCode, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(external_base_visibility)
{
    char const* sourceCode = R"(
        contract base {
            function f() external {}
        }
        contract derived is base {
            function g() { base.f(); }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_argument_assign)
{
    char const* sourceCode = R"(
        contract c {
            function f(uint a) external { a = 1; }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_argument_increment)
{
    char const* sourceCode = R"(
        contract c {
            function f(uint a) external { a++; }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_argument_delete)
{
    char const* sourceCode = R"(
        contract c {
            function f(uint a) external { delete a; }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(test_for_bug_override_function_with_bytearray_type)
{
    char const* sourceCode = R"(
        contract Vehicle {
            function f(bytes) external returns (uint256 r) {r = 1;}
        }
        contract Bike is Vehicle {
            function f(bytes) external returns (uint256 r) {r = 42;}
        }
    )";
    ETH_TEST_CHECK_NO_THROW(parseAndAnalyse(sourceCode), "Parsing and Name Resolving failed");
}

BOOST_AUTO_TEST_CASE(array_with_nonconstant_length)
{
    char const* text = R"(
        contract c {
            function f(uint a) { uint8[a] x; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(array_with_negative_length)
{
    char const* text = R"(
        contract c {
            function f(uint a) { uint8[-1] x; }
        }
    )";
    CHECK_ERROR(text, TypeError, "Array with negative length specified");
}

BOOST_AUTO_TEST_CASE(array_copy_with_different_types1)
{
    char const* text = R"(
        contract c {
            bytes a;
            uint[] b;
            function f() { b = a; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(array_copy_with_different_types2)
{
    char const* text = R"(
        contract c {
            uint32[] a;
            uint8[] b;
            function f() { b = a; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(array_copy_with_different_types_conversion_possible)
{
    char const* text = R"(
        contract c {
            uint32[] a;
            uint8[] b;
            function f() { a = b; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(array_copy_with_different_types_static_dynamic)
{
    char const* text = R"(
        contract c {
            uint32[] a;
            uint8[80] b;
            function f() { a = b; }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(array_copy_with_different_types_dynamic_static)
{
    char const* text = R"(
        contract c {
            uint[] a;
            uint[80] b;
            function f() { b = a; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(storage_variable_initialization_with_incorrect_type_int)
{
    char const* text = R"(
        contract c {
            uint8 a = 1000;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(storage_variable_initialization_with_incorrect_type_string)
{
    char const* text = R"(
        contract c {
            uint a = "abc";
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(test_fromElementaryTypeName)
{

    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::Int, 0, 0)) == *make_shared<IntegerType>(256, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 8, 0)) == *make_shared<IntegerType>(8, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 16, 0)) == *make_shared<IntegerType>(16, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 24, 0)) == *make_shared<IntegerType>(24, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 32, 0)) == *make_shared<IntegerType>(32, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 40, 0)) == *make_shared<IntegerType>(40, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 48, 0)) == *make_shared<IntegerType>(48, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 56, 0)) == *make_shared<IntegerType>(56, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 64, 0)) == *make_shared<IntegerType>(64, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 72, 0)) == *make_shared<IntegerType>(72, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 80, 0)) == *make_shared<IntegerType>(80, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 88, 0)) == *make_shared<IntegerType>(88, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 96, 0)) == *make_shared<IntegerType>(96, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 104, 0)) == *make_shared<IntegerType>(104, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 112, 0)) == *make_shared<IntegerType>(112, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 120, 0)) == *make_shared<IntegerType>(120, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 128, 0)) == *make_shared<IntegerType>(128, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 136, 0)) == *make_shared<IntegerType>(136, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 144, 0)) == *make_shared<IntegerType>(144, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 152, 0)) == *make_shared<IntegerType>(152, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 160, 0)) == *make_shared<IntegerType>(160, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 168, 0)) == *make_shared<IntegerType>(168, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 176, 0)) == *make_shared<IntegerType>(176, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 184, 0)) == *make_shared<IntegerType>(184, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 192, 0)) == *make_shared<IntegerType>(192, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 200, 0)) == *make_shared<IntegerType>(200, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 208, 0)) == *make_shared<IntegerType>(208, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 216, 0)) == *make_shared<IntegerType>(216, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 224, 0)) == *make_shared<IntegerType>(224, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 232, 0)) == *make_shared<IntegerType>(232, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 240, 0)) == *make_shared<IntegerType>(240, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 248, 0)) == *make_shared<IntegerType>(248, IntegerType::Modifier::Signed));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::IntM, 256, 0)) == *make_shared<IntegerType>(256, IntegerType::Modifier::Signed));

    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UInt, 0, 0)) == *make_shared<IntegerType>(256, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 8, 0)) == *make_shared<IntegerType>(8, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 16, 0)) == *make_shared<IntegerType>(16, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 24, 0)) == *make_shared<IntegerType>(24, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 32, 0)) == *make_shared<IntegerType>(32, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 40, 0)) == *make_shared<IntegerType>(40, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 48, 0)) == *make_shared<IntegerType>(48, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 56, 0)) == *make_shared<IntegerType>(56, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 64, 0)) == *make_shared<IntegerType>(64, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 72, 0)) == *make_shared<IntegerType>(72, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 80, 0)) == *make_shared<IntegerType>(80, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 88, 0)) == *make_shared<IntegerType>(88, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 96, 0)) == *make_shared<IntegerType>(96, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 104, 0)) == *make_shared<IntegerType>(104, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 112, 0)) == *make_shared<IntegerType>(112, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 120, 0)) == *make_shared<IntegerType>(120, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 128, 0)) == *make_shared<IntegerType>(128, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 136, 0)) == *make_shared<IntegerType>(136, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 144, 0)) == *make_shared<IntegerType>(144, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 152, 0)) == *make_shared<IntegerType>(152, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 160, 0)) == *make_shared<IntegerType>(160, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 168, 0)) == *make_shared<IntegerType>(168, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 176, 0)) == *make_shared<IntegerType>(176, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 184, 0)) == *make_shared<IntegerType>(184, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 192, 0)) == *make_shared<IntegerType>(192, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 200, 0)) == *make_shared<IntegerType>(200, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 208, 0)) == *make_shared<IntegerType>(208, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 216, 0)) == *make_shared<IntegerType>(216, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 224, 0)) == *make_shared<IntegerType>(224, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 232, 0)) == *make_shared<IntegerType>(232, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 240, 0)) == *make_shared<IntegerType>(240, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 248, 0)) == *make_shared<IntegerType>(248, IntegerType::Modifier::Unsigned));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::UIntM, 256, 0)) == *make_shared<IntegerType>(256, IntegerType::Modifier::Unsigned));

    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::Byte, 0, 0)) == *make_shared<FixedBytesType>(1));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 1, 0)) == *make_shared<FixedBytesType>(1));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 2, 0)) == *make_shared<FixedBytesType>(2));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 3, 0)) == *make_shared<FixedBytesType>(3));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 4, 0)) == *make_shared<FixedBytesType>(4));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 5, 0)) == *make_shared<FixedBytesType>(5));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 6, 0)) == *make_shared<FixedBytesType>(6));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 7, 0)) == *make_shared<FixedBytesType>(7));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 8, 0)) == *make_shared<FixedBytesType>(8));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 9, 0)) == *make_shared<FixedBytesType>(9));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 10, 0)) == *make_shared<FixedBytesType>(10));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 11, 0)) == *make_shared<FixedBytesType>(11));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 12, 0)) == *make_shared<FixedBytesType>(12));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 13, 0)) == *make_shared<FixedBytesType>(13));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 14, 0)) == *make_shared<FixedBytesType>(14));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 15, 0)) == *make_shared<FixedBytesType>(15));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 16, 0)) == *make_shared<FixedBytesType>(16));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 17, 0)) == *make_shared<FixedBytesType>(17));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 18, 0)) == *make_shared<FixedBytesType>(18));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 19, 0)) == *make_shared<FixedBytesType>(19));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 20, 0)) == *make_shared<FixedBytesType>(20));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 21, 0)) == *make_shared<FixedBytesType>(21));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 22, 0)) == *make_shared<FixedBytesType>(22));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 23, 0)) == *make_shared<FixedBytesType>(23));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 24, 0)) == *make_shared<FixedBytesType>(24));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 25, 0)) == *make_shared<FixedBytesType>(25));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 26, 0)) == *make_shared<FixedBytesType>(26));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 27, 0)) == *make_shared<FixedBytesType>(27));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 28, 0)) == *make_shared<FixedBytesType>(28));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 29, 0)) == *make_shared<FixedBytesType>(29));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 30, 0)) == *make_shared<FixedBytesType>(30));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 31, 0)) == *make_shared<FixedBytesType>(31));
    BOOST_CHECK(*Type::fromElementaryTypeName(ElementaryTypeNameToken(Token::BytesM, 32, 0)) == *make_shared<FixedBytesType>(32));
}

BOOST_AUTO_TEST_CASE(test_byte_is_alias_of_byte1)
{
    char const* text = R"(
        contract c {
            bytes arr;
            function f() { byte a = arr[0];}
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(parseAndAnalyse(text), "Type resolving failed");
}

BOOST_AUTO_TEST_CASE(assigning_value_to_const_variable)
{
    char const* text = R"(
        contract Foo {
            function changeIt() { x = 9; }
            uint constant x = 56;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(assigning_state_to_const_variable)
{
    char const* text = R"(
        contract C {
            address constant x = msg.sender;
        }
    )";
    // Change to TypeError for 0.5.0.
    CHECK_WARNING(text, "Initial value for constant variable has to be compile-time constant.");
}

BOOST_AUTO_TEST_CASE(constant_string_literal_disallows_assignment)
{
    char const* text = R"(
        contract Test {
            string constant x = "abefghijklmnopqabcdefghijklmnopqabcdefghijklmnopqabca";
            function f() {
                x[0] = "f";
            }
        }
    )";

    // Even if this is made possible in the future, we should not allow assignment
    // to elements of constant arrays.
    CHECK_ERROR(text, TypeError, "Index access for string is not possible.");
}

BOOST_AUTO_TEST_CASE(assign_constant_function_value_to_constant)
{
    char const* text = R"(
        contract C {
            function () constant returns (uint) x;
            uint constant y = x();
        }
    )";
    // Change to TypeError for 0.5.0.
    CHECK_WARNING(text, "Initial value for constant variable has to be compile-time constant.");
}

BOOST_AUTO_TEST_CASE(assignment_to_const_var_involving_conversion)
{
    char const* text = R"(
        contract C {
            C constant x = C(0x123);
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(assignment_to_const_var_involving_expression)
{
    char const* text = R"(
        contract C {
            uint constant x = 0x123 + 0x456;
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(assignment_to_const_var_involving_keccak)
{
    char const* text = R"(
        contract C {
            bytes32 constant x = keccak256("abc");
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(assignment_to_const_array_vars)
{
    char const* text = R"(
        contract C {
            uint[3] constant x = [uint(1), 2, 3];
        }
    )";
    CHECK_ERROR(text, TypeError, "implemented");
}

BOOST_AUTO_TEST_CASE(constant_struct)
{
    char const* text = R"(
        contract C {
            struct S { uint x; uint[] y; }
            S constant x = S(5, new uint[](4));
        }
    )";
    CHECK_ERROR(text, TypeError, "implemented");
}

BOOST_AUTO_TEST_CASE(address_is_constant)
{
    char const* text = R"(
        contract C {
            address constant x = 0x1212121212121212121212121212121212121212;
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(uninitialized_const_variable)
{
    char const* text = R"(
        contract Foo {
            uint constant y;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(overloaded_function_cannot_resolve)
{
    char const* sourceCode = R"(
        contract test {
            function f() returns(uint) { return 1; }
            function f(uint a) returns(uint) { return a; }
            function g() returns(uint) { return f(3, 5); }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(ambiguous_overloaded_function)
{
    // literal 1 can be both converted to uint and uint8, so the call is ambiguous.
    char const* sourceCode = R"(
        contract test {
            function f(uint8 a) returns(uint) { return a; }
            function f(uint a) returns(uint) { return 2*a; }
            function g() returns(uint) { return f(1); }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(assignment_of_nonoverloaded_function)
{
    char const* sourceCode = R"(
        contract test {
            function f(uint a) returns(uint) { return 2 * a; }
            function g() returns(uint) { var x = f; return x(7); }
        }
    )";
    ETH_TEST_REQUIRE_NO_THROW(parseAndAnalyse(sourceCode), "Type resolving failed");
}

BOOST_AUTO_TEST_CASE(assignment_of_overloaded_function)
{
    char const* sourceCode = R"(
        contract test {
            function f() returns(uint) { return 1; }
            function f(uint a) returns(uint) { return 2 * a; }
            function g() returns(uint) { var x = f; return x(7); }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_types_clash)
{
    char const* sourceCode = R"(
        contract base {
            enum a { X }
            function f(a) { }
        }
        contract test is base {
            function f(uint8 a) { }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(override_changes_return_types)
{
    char const* sourceCode = R"(
        contract base {
            function f(uint a) returns (uint) { }
        }
        contract test is base {
            function f(uint a) returns (uint8) { }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(multiple_constructors)
{
    char const* sourceCode = R"(
        contract test {
            function test(uint a) { }
            function test() {}
        }
    )";
    CHECK_ERROR(sourceCode, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(equal_overload)
{
    char const* sourceCode = R"(
        contract C {
            function test(uint a) returns (uint b) { }
            function test(uint a) external {}
        }
    )";
    CHECK_ERROR_ALLOW_MULTI(sourceCode, DeclarationError, "");
}

BOOST_AUTO_TEST_CASE(uninitialized_var)
{
    char const* sourceCode = R"(
        contract C {
            function f() returns (uint) { var x; return 2; }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(string)
{
    char const* sourceCode = R"(
        contract C {
            string s;
            function f(string x) external { s = x; }
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(invalid_utf8_implicit)
{
    char const* sourceCode = R"(
        contract C {
            string s = "\xa0\x00";
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "invalid UTF-8");
}

BOOST_AUTO_TEST_CASE(invalid_utf8_explicit)
{
    char const* sourceCode = R"(
        contract C {
            string s = string("\xa0\x00");
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "Explicit type conversion not allowed");
}

BOOST_AUTO_TEST_CASE(large_utf8_codepoint)
{
    char const* sourceCode = R"(
        contract C {
            string s = "\xf0\x9f\xa6\x84";
        }
    )";
    CHECK_SUCCESS(sourceCode);
}

BOOST_AUTO_TEST_CASE(string_index)
{
    char const* sourceCode = R"(
        contract C {
            string s;
            function f() { var a = s[2]; }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(string_length)
{
    char const* sourceCode = R"(
        contract C {
            string s;
            function f() { var a = s.length; }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(negative_integers_to_signed_out_of_bound)
{
    char const* sourceCode = R"(
        contract test {
            int8 public i = -129;
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(negative_integers_to_signed_min)
{
    char const* sourceCode = R"(
        contract test {
            int8 public i = -128;
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(positive_integers_to_signed_out_of_bound)
{
    char const* sourceCode = R"(
        contract test {
            int8 public j = 128;
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(positive_integers_to_signed_out_of_bound_max)
{
    char const* sourceCode = R"(
        contract test {
            int8 public j = 127;
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(negative_integers_to_unsigned)
{
    char const* sourceCode = R"(
        contract test {
            uint8 public x = -1;
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(positive_integers_to_unsigned_out_of_bound)
{
    char const* sourceCode = R"(
        contract test {
            uint8 public x = 700;
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(integer_boolean_operators)
{
    char const* sourceCode1 = R"(
        contract test { function() { uint x = 1; uint y = 2; x || y; } }
    )";
    CHECK_ERROR(sourceCode1, TypeError, "");
    char const* sourceCode2 = R"(
        contract test { function() { uint x = 1; uint y = 2; x && y; } }
    )";
    CHECK_ERROR(sourceCode2, TypeError, "");
    char const* sourceCode3 = R"(
        contract test { function() { uint x = 1; !x; } }
    )";
    CHECK_ERROR(sourceCode3, TypeError, "");
}

BOOST_AUTO_TEST_CASE(exp_signed_variable)
{
    char const* sourceCode1 = R"(
        contract test { function() { uint x = 3; int y = -4; x ** y; } }
    )";
    CHECK_ERROR(sourceCode1, TypeError, "");
    char const* sourceCode2 = R"(
        contract test { function() { uint x = 3; int y = -4; y ** x; } }
    )";
    CHECK_ERROR(sourceCode2, TypeError, "");
    char const* sourceCode3 = R"(
        contract test { function() { int x = -3; int y = -4; x ** y; } }
    )";
    CHECK_ERROR(sourceCode3, TypeError, "");
}

BOOST_AUTO_TEST_CASE(reference_compare_operators)
{
    char const* sourceCode1 = R"(
        contract test { bytes a; bytes b; function() { a == b; } }
    )";
    CHECK_ERROR(sourceCode1, TypeError, "");
    char const* sourceCode2 = R"(
        contract test { struct s {uint a;} s x; s y; function() { x == y; } }
    )";
    CHECK_ERROR(sourceCode2, TypeError, "");
}

BOOST_AUTO_TEST_CASE(overwrite_memory_location_external)
{
    char const* sourceCode = R"(
        contract C {
            function f(uint[] memory a) external {}
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(overwrite_storage_location_external)
{
    char const* sourceCode = R"(
        contract C {
            function f(uint[] storage a) external {}
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(storage_location_local_variables)
{
    char const* sourceCode = R"(
        contract C {
            function f() {
                uint[] storage x;
                uint[] memory y;
                uint[] memory z;
                x;y;z;
            }
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(no_mappings_in_memory_array)
{
    char const* sourceCode = R"(
        contract C {
            function f() {
                mapping(uint=>uint)[] memory x;
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(assignment_mem_to_local_storage_variable)
{
    char const* sourceCode = R"(
        contract C {
            uint[] data;
            function f(uint[] x) {
                var dataRef = data;
                dataRef = x;
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(storage_assign_to_different_local_variable)
{
    char const* sourceCode = R"(
        contract C {
            uint[] data;
            uint8[] otherData;
            function f() {
                uint8[] storage x = otherData;
                uint[] storage y = data;
                y = x;
                // note that data = otherData works
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(uninitialized_mapping_variable)
{
    char const* sourceCode = R"(
        contract C {
            function f() {
                mapping(uint => uint) x;
                x;
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "Uninitialized mapping. Mappings cannot be created dynamically, you have to assign them from a state variable");
}

BOOST_AUTO_TEST_CASE(uninitialized_mapping_array_variable)
{
    char const* sourceCode = R"(
        contract C {
            function f() {
                mapping(uint => uint)[] x;
                x;
            }
        }
    )";
    CHECK_WARNING(sourceCode, "Uninitialized storage pointer");
}

BOOST_AUTO_TEST_CASE(no_delete_on_storage_pointers)
{
    char const* sourceCode = R"(
        contract C {
            uint[] data;
            function f() {
                var x = data;
                delete x;
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(assignment_mem_storage_variable_directly)
{
    char const* sourceCode = R"(
        contract C {
            uint[] data;
            function f(uint[] x) {
                data = x;
            }
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(function_argument_mem_to_storage)
{
    char const* sourceCode = R"(
        contract C {
            function f(uint[] storage x) private {
            }
            function g(uint[] x) {
                f(x);
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(function_argument_storage_to_mem)
{
    char const* sourceCode = R"(
        contract C {
            function f(uint[] storage x) private {
                g(x);
            }
            function g(uint[] x) {
            }
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(mem_array_assignment_changes_base_type)
{
    // Such an assignment is possible in storage, but not in memory
    // (because it would incur an otherwise unnecessary copy).
    // This requirement might be lifted, though.
    char const* sourceCode = R"(
        contract C {
            function f(uint8[] memory x) private {
                uint[] memory y = x;
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(dynamic_return_types_not_possible)
{
    char const* sourceCode = R"(
        contract C {
            function f(uint) returns (string);
            function g() {
                var (x,) = this.f(2);
                // we can assign to x but it is not usable.
                bytes(x).length;
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(memory_arrays_not_resizeable)
{
    char const* sourceCode = R"(
        contract C {
            function f() {
                uint[] memory x;
                x.length = 2;
            }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(struct_constructor)
{
    char const* sourceCode = R"(
        contract C {
            struct S { uint a; bool x; }
            function f() {
                S memory s = S(1, true);
            }
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(struct_constructor_nested)
{
    char const* sourceCode = R"(
        contract C {
            struct X { uint x1; uint x2; }
            struct S { uint s1; uint[3] s2; X s3; }
            function f() {
                uint[3] memory s2;
                S memory s = S(1, s2, X(4, 5));
            }
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(struct_named_constructor)
{
    char const* sourceCode = R"(
        contract C {
            struct S { uint a; bool x; }
            function f() {
                S memory s = S({a: 1, x: true});
            }
        }
    )";
    BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}

BOOST_AUTO_TEST_CASE(literal_strings)
{
    char const* text = R"(
        contract Foo {
            function f() {
                string memory long = "01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890";
                string memory short = "123";
                long; short;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(memory_structs_with_mappings)
{
    char const* text = R"(
        contract Test {
            struct S { uint8 a; mapping(uint => uint) b; uint8 c; }
            S s;
            function f() {
                S memory x;
                x.b[1];
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(string_bytes_conversion)
{
    char const* text = R"(
        contract Test {
            string s;
            bytes b;
            function h(string _s) external { bytes(_s).length; }
            function i(string _s) internal { bytes(_s).length; }
            function j() internal { bytes(s).length; }
            function k(bytes _b) external { string(_b); }
            function l(bytes _b) internal { string(_b); }
            function m() internal { string(b); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inheriting_from_library)
{
    char const* text = R"(
        library Lib {}
        contract Test is Lib {}
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(inheriting_library)
{
    char const* text = R"(
        contract Test {}
        library Lib is Test {}
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(library_having_variables)
{
    char const* text = R"(
        library Lib { uint x; }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(valid_library)
{
    char const* text = R"(
        library Lib { uint constant x = 9; }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(call_to_library_function)
{
    char const* text = R"(
        library Lib {
            function min(uint, uint) returns (uint);
        }
        contract Test {
            function f() {
                uint t = Lib.min(12, 7);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(creating_contract_within_the_contract)
{
    char const* sourceCode = R"(
        contract Test {
            function f() { var x = new Test(); }
        }
    )";
    CHECK_ERROR(sourceCode, TypeError, "");
}

BOOST_AUTO_TEST_CASE(array_out_of_bound_access)
{
    char const* text = R"(
        contract c {
            uint[2] dataArray;
            function set5th() returns (bool) {
                dataArray[5] = 2;
                return true;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(literal_string_to_storage_pointer)
{
    char const* text = R"(
        contract C {
            function f() { string x = "abc"; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(non_initialized_references)
{
    char const* text = R"(
        contract c
        {
            struct s{
                uint a;
            }
            function f()
            {
                s x;
                x.a = 2;
            }
        }
    )";

    CHECK_WARNING(text, "Uninitialized storage pointer");
}

BOOST_AUTO_TEST_CASE(keccak256_with_large_integer_constant)
{
    char const* text = R"(
        contract c
        {
            function f() { keccak256(2**500); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(cyclic_binary_dependency)
{
    char const* text = R"(
        contract A { function f() { new B(); } }
        contract B { function f() { new C(); } }
        contract C { function f() { new A(); } }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(cyclic_binary_dependency_via_inheritance)
{
    char const* text = R"(
        contract A is B { }
        contract B { function f() { new C(); } }
        contract C { function f() { new A(); } }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(multi_variable_declaration_fail)
{
    char const* text = R"(
        contract C { function f() { var (x,y); x = 1; y = 1;} }
    )";
    CHECK_ERROR(text, TypeError, "Assignment necessary for type detection.");
}

BOOST_AUTO_TEST_CASE(multi_variable_declaration_wildcards_fine)
{
    char const* text = R"(
        contract C {
            function three() returns (uint, uint, uint);
            function two() returns (uint, uint);
            function none();
            function f() {
                var (a,) = three();
                var (b,c,) = two();
                var (,d) = three();
                var (,e,g) = two();
                var (,,) = three();
                var () = none();
                a;b;c;d;e;g;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(multi_variable_declaration_wildcards_fail_1)
{
    char const* text = R"(
        contract C {
            function one() returns (uint);
            function f() { var (a, b, ) = one(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}
BOOST_AUTO_TEST_CASE(multi_variable_declaration_wildcards_fail_2)
{
    char const* text = R"(
        contract C {
            function one() returns (uint);
            function f() { var (a, , ) = one(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(multi_variable_declaration_wildcards_fail_3)
{
    char const* text = R"(
        contract C {
            function one() returns (uint);
            function f() { var (, , a) = one(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(multi_variable_declaration_wildcards_fail_4)
{
    char const* text = R"(
        contract C {
            function one() returns (uint);
            function f() { var (, a, b) = one(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(tuples)
{
    char const* text = R"(
        contract C {
            function f() {
                uint a = (1);
                var (b,) = (1,);
                var (c,d) = (1, 2 + a);
                var (e,) = (1, 2, b);
                a;b;c;d;e;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(tuples_empty_components)
{
    char const* text = R"(
        contract C {
            function f() {
                (1,,2);
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(multi_variable_declaration_wildcards_fail_5)
{
    char const* text = R"(
        contract C {
            function one() returns (uint);
            function f() { var (,) = one(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(multi_variable_declaration_wildcards_fail_6)
{
    char const* text = R"(
        contract C {
            function two() returns (uint, uint);
            function f() { var (a, b, c) = two(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(tuple_assignment_from_void_function)
{
    char const* text = R"(
        contract C {
            function f() { }
            function g() {
                var (x,) = (f(), f());
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Cannot declare variable with void (empty tuple) type.");
}

BOOST_AUTO_TEST_CASE(tuple_compound_assignment)
{
    char const* text = R"(
        contract C {
            function f() returns (uint a, uint b) {
                (a, b) += (1, 1);
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Compound assignment is not allowed for tuple types.");
}

BOOST_AUTO_TEST_CASE(member_access_parser_ambiguity)
{
    char const* text = R"(
        contract C {
            struct R { uint[10][10] y; }
            struct S { uint a; uint b; uint[20][20][20] c; R d; }
            S data;
            function f() {
                C.S x = data;
                C.S memory y;
                C.S[10] memory z;
                C.S[10];
                y.a = 2;
                x.c[1][2][3] = 9;
                x.d.y[2][2] = 3;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(using_for_library)
{
    char const* text = R"(
        library D { }
        contract C {
            using D for uint;
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(using_for_not_library)
{
    char const* text = R"(
        contract D { }
        contract C {
            using D for uint;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(using_for_function_exists)
{
    char const* text = R"(
        library D { function double(uint self) returns (uint) { return 2*self; } }
        contract C {
            using D for uint;
            function f(uint a) {
                a.double;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(using_for_function_on_int)
{
    char const* text = R"(
        library D { function double(uint self) returns (uint) { return 2*self; } }
        contract C {
            using D for uint;
            function f(uint a) returns (uint) {
                return a.double();
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(using_for_function_on_struct)
{
    char const* text = R"(
        library D { struct s { uint a; } function mul(s storage self, uint x) returns (uint) { return self.a *= x; } }
        contract C {
            using D for D.s;
            D.s x;
            function f(uint a) returns (uint) {
                return x.mul(a);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(using_for_overload)
{
    char const* text = R"(
        library D {
            struct s { uint a; }
            function mul(s storage self, uint x) returns (uint) { return self.a *= x; }
            function mul(s storage, bytes32) returns (bytes32) { }
        }
        contract C {
            using D for D.s;
            D.s x;
            function f(uint a) returns (uint) {
                return x.mul(a);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(using_for_by_name)
{
    char const* text = R"(
        library D { struct s { uint a; } function mul(s storage self, uint x) returns (uint) { return self.a *= x; } }
        contract C {
            using D for D.s;
            D.s x;
            function f(uint a) returns (uint) {
                return x.mul({x: a});
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(using_for_mismatch)
{
    char const* text = R"(
        library D { function double(bytes32 self) returns (uint) { return 2; } }
        contract C {
            using D for uint;
            function f(uint a) returns (uint) {
                return a.double();
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(using_for_not_used)
{
    // This is an error because the function is only bound to uint.
    // Had it been bound to *, it would have worked.
    char const* text = R"(
        library D { function double(uint self) returns (uint) { return 2; } }
        contract C {
            using D for uint;
            function f(uint16 a) returns (uint) {
                return a.double();
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(library_memory_struct)
{
    char const* text = R"(
        library c {
            struct S { uint x; }
            function f() returns (S ) {}
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(using_for_arbitrary_mismatch)
{
    // Bound to a, but self type does not match.
    char const* text = R"(
        library D { function double(bytes32 self) returns (uint) { return 2; } }
        contract C {
            using D for *;
            function f(uint a) returns (uint) {
                return a.double();
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(bound_function_in_var)
{
    char const* text = R"(
        library D { struct s { uint a; } function mul(s storage self, uint x) returns (uint) { return self.a *= x; } }
        contract C {
            using D for D.s;
            D.s x;
            function f(uint a) returns (uint) {
                var g = x.mul;
                return g({x: a});
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(create_memory_arrays)
{
    char const* text = R"(
        library L {
            struct R { uint[10][10] y; }
            struct S { uint a; uint b; uint[20][20][20] c; R d; }
        }
        contract C {
            function f(uint size) {
                L.S[][] memory x = new L.S[][](10);
                var y = new uint[](20);
                var z = new bytes(size);
                x;y;z;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(mapping_in_memory_array)
{
    char const* text = R"(
        contract C {
            function f(uint size) {
                var x = new mapping(uint => uint)[](4);
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(new_for_non_array)
{
    char const* text = R"(
        contract C {
            function f(uint size) {
                var x = new uint(7);
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(invalid_args_creating_memory_array)
{
    char const* text = R"(
        contract C {
            function f(uint size) {
                var x = new uint[]();
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(function_overload_array_type)
{
    char const* text = R"(
            contract M {
                function f(uint[]);
                function f(int[]);
            }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_array_declaration_and_passing_implicit_conversion)
{
    char const* text = R"(
            contract C {
                function f() returns (uint) {
                    uint8 x = 7;
                    uint16 y = 8;
                    uint32 z = 9;
                    uint32[3] memory ending = [x, y, z];
                    return (ending[1]);
                }
            }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_array_declaration_and_passing_implicit_conversion_strings)
{
    char const* text = R"(
        contract C {
            function f() returns (string) {
                string memory x = "Hello";
                string memory y = "World";
                string[2] memory z = [x, y];
                return (z[0]);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_array_declaration_const_int_conversion)
{
    char const* text = R"(
        contract C {
            function f() returns (uint) {
                uint8[4] memory z = [1,2,3,5];
                return (z[0]);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_array_declaration_const_string_conversion)
{
    char const* text = R"(
        contract C {
            function f() returns (string) {
                string[2] memory z = ["Hello", "World"];
                return (z[0]);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_array_declaration_no_type)
{
    char const* text = R"(
        contract C {
            function f() returns (uint) {
                return ([4,5,6][1]);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_array_declaration_no_type_strings)
{
    char const* text = R"(
        contract C {
            function f() returns (string) {
                return (["foo", "man", "choo"][1]);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_struct_declaration_arrays)
{
    char const* text = R"(
        contract C {
            struct S {
                uint a;
                string b;
            }
            function f() {
                S[2] memory x = [S({a: 1, b: "fish"}), S({a: 2, b: "fish"})];
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(invalid_types_in_inline_array)
{
    char const* text = R"(
        contract C {
            function f() {
                uint[3] x = [45, 'foo', true];
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(dynamic_inline_array)
{
    char const* text = R"(
        contract C {
            function f() {
                uint8[4][4] memory dyn = [[1, 2, 3, 4], [2, 3, 4, 5], [3, 4, 5, 6], [4, 5, 6, 7]];
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(lvalues_as_inline_array)
{
    char const* text = R"(
        contract C {
            function f() {
                [1, 2, 3]++;
                [1, 2, 3] = [4, 5, 6];
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(break_not_in_loop)
{
    char const* text = R"(
        contract C {
            function f() {
                if (true)
                    break;
            }
        }
    )";
    CHECK_ERROR(text, SyntaxError, "");
}

BOOST_AUTO_TEST_CASE(continue_not_in_loop)
{
    char const* text = R"(
        contract C {
            function f() {
                if (true)
                    continue;
            }
        }
    )";
    CHECK_ERROR(text, SyntaxError, "");
}

BOOST_AUTO_TEST_CASE(continue_not_in_loop_2)
{
    char const* text = R"(
        contract C {
            function f() {
                while (true)
                {
                }
                continue;
            }
        }
    )";
    CHECK_ERROR(text, SyntaxError, "");
}

BOOST_AUTO_TEST_CASE(invalid_different_types_for_conditional_expression)
{
    char const* text = R"(
        contract C {
            function f() {
                true ? true : 2;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(left_value_in_conditional_expression_not_supported_yet)
{
    char const* text = R"(
        contract C {
            function f() {
                uint x;
                uint y;
                (true ? x : y) = 1;
            }
        }
    )";
    CHECK_ERROR_ALLOW_MULTI(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(conditional_expression_with_different_struct)
{
    char const* text = R"(
        contract C {
            struct s1 {
                uint x;
            }
            struct s2 {
                uint x;
            }
            function f() {
                s1 memory x;
                s2 memory y;
                true ? x : y;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(conditional_expression_with_different_function_type)
{
    char const* text = R"(
        contract C {
            function x(bool) {}
            function y() {}

            function f() {
                true ? x : y;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(conditional_expression_with_different_enum)
{
    char const* text = R"(
        contract C {
            enum small { A, B, C, D }
            enum big { A, B, C, D }

            function f() {
                small x;
                big y;

                true ? x : y;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(conditional_expression_with_different_mapping)
{
    char const* text = R"(
        contract C {
            mapping(uint8 => uint8) table1;
            mapping(uint32 => uint8) table2;

            function f() {
                true ? table1 : table2;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(conditional_with_all_types)
{
    char const* text = R"(
        contract C {
            struct s1 {
                uint x;
            }
            s1 struct_x;
            s1 struct_y;

            function fun_x() {}
            function fun_y() {}

            enum small { A, B, C, D }

            mapping(uint8 => uint8) table1;
            mapping(uint8 => uint8) table2;

            function f() {
                // integers
                uint x;
                uint y;
                uint g = true ? x : y;
                g += 1; // Avoid unused var warning

                // integer constants
                uint h = true ? 1 : 3;
                h += 1; // Avoid unused var warning

                // string literal
                var i = true ? "hello" : "world";
                i = "used"; //Avoid unused var warning
            }
            function f2() {
                // bool
                bool j = true ? true : false;
                j = j && true; // Avoid unused var warning

                // real is not there yet.

                // array
                byte[2] memory a;
                byte[2] memory b;
                var k = true ? a : b;
                k[0] = 0; //Avoid unused var warning

                bytes memory e;
                bytes memory f;
                var l = true ? e : f;
                l[0] = 0; // Avoid unused var warning

                // fixed bytes
                bytes2 c;
                bytes2 d;
                var m = true ? c : d;
                m &= m;

            }
            function f3() {
                // contract doesn't fit in here

                // struct
                struct_x = true ? struct_x : struct_y;

                // function
                var r = true ? fun_x : fun_y;
                r(); // Avoid unused var warning
                // enum
                small enum_x;
                small enum_y;
                enum_x = true ? enum_x : enum_y;

                // tuple
                var (n, o) = true ? (1, 2) : (3, 4);
                (n, o) = (o, n); // Avoid unused var warning
                // mapping
                var p = true ? table1 : table2;
                p[0] = 0; // Avoid unused var warning
                // typetype
                var q = true ? uint32(1) : uint32(2);
                q += 1; // Avoid unused var warning
                // modifier doesn't fit in here

                // magic doesn't fit in here

                // module doesn't fit in here
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(constructor_call_invalid_arg_count)
{
    // This caused a segfault in an earlier version
    char const* text = R"(
        contract C {
            function C(){}
        }
        contract D is C {
            function D() C(5){}
        }
    )";

    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(index_access_for_bytes)
{
    char const* text = R"(
        contract C {
            bytes20 x;
            function f(bytes16 b) {
                b[uint(x[2])];
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(uint7_and_uintM_as_identifier)
{
    char const* text = R"(
        contract test {
        string uintM = "Hello 4 you";
            function f() {
                uint8 uint7 = 3;
                uint7 = 5;
                string memory intM;
                uint bytesM = 21;
                intM; bytesM;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(varM_disqualified_as_keyword)
{
    char const* text = R"(
        contract test {
            function f() {
                uintM something = 3;
                intM should = 4;
                bytesM fail = "now";
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(long_uint_variable_fails)
{
    char const* text = R"(
        contract test {
            function f() {
                uint99999999999999999999999999 something = 3;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(bytes10abc_is_identifier)
{
    char const* text = R"(
        contract test {
            function f() {
                bytes32 bytes10abc = "abc";
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(int10abc_is_identifier)
{
    char const* text = R"(
        contract test {
            function f() {
                uint uint10abc = 3;
                int int10abc = 4;
                uint10abc; int10abc;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(library_functions_do_not_have_value)
{
    char const* text = R"(
        library L { function l() {} }
        contract test {
            function f() {
                L.l.value;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(invalid_fixed_types_0x7_mxn)
{
    char const* text = R"(
        contract test {
            fixed0x7 a = .3;
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(invalid_fixed_types_long_invalid_identifier)
{
    char const* text = R"(
        contract test {
            fixed99999999999999999999999999999999999999x7 b = 9.5;
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(invalid_fixed_types_7x8_mxn)
{
    char const* text = R"(
        contract test {
            fixed7x8 c = 3.12345678;
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(library_instances_cannot_be_used)
{
    char const* text = R"(
        library L { function l() {} }
        contract test {
            function f() {
                L x;
                x.l();
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(invalid_fixed_type_long)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed8x888888888888888888888888888888888888888888888888888 b;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(fixed_type_int_conversion)
{
    char const* text = R"(
        contract test {
            function f() {
                uint128 a = 3;
                int128 b = 4;
                fixed c = b;
                ufixed d = a;
                c; d;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(fixed_type_rational_int_conversion)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed c = 3;
                ufixed d = 4;
                c; d;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(fixed_type_rational_fraction_conversion)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed a = 4.5;
                ufixed d = 2.5;
                a; d;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(invalid_int_implicit_conversion_from_fixed)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed a = 4.5;
                int b = a;
                a; b;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_unary_operation)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed8x16 a = 3.25;
                fixed8x16 b = -3.25;
                a;
                b;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
    text = R"(
        contract test {
            function f() {
                ufixed8x16 a = +3.25;
                fixed8x16 b = -3.25;
                a; b;
            }
        }
    )";
    CHECK_WARNING(text,"Use of unary + is deprecated");
    text = R"(
        contract test {
            function f(uint x) {
                uint y = +x;
                y;
            }
        }
    )";
    CHECK_WARNING(text,"Use of unary + is deprecated");
}

BOOST_AUTO_TEST_CASE(leading_zero_rationals_convert)
{
    char const* text = R"(
        contract A {
            function f() {
                ufixed0x8 a = 0.5;
                ufixed0x56 b = 0.0000000000000006661338147750939242541790008544921875;
                fixed0x8 c = -0.5;
                fixed0x56 d = -0.0000000000000006661338147750939242541790008544921875;
                a; b; c; d;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(size_capabilities_of_fixed_point_types)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed248x8 a = 123456781234567979695948382928485849359686494864095409282048094275023098123.5;
                ufixed0x256 b = 0.920890746623327805482905058466021565416131529487595827354393978494366605267637829135688384325135165352082715782143655824815685807141335814463015972119819459298455224338812271036061391763384038070334798471324635050876128428143374549108557403087615966796875;
                ufixed0x256 c = 0.0000000000015198847363997979984922685411315294875958273543939784943666052676464653042434787697605517039455161817147718251801220885263595179331845639229818863564267318422845592626219390573301877339317935702714669975697814319204326238832436501979827880859375;
                fixed248x8 d = -123456781234567979695948382928485849359686494864095409282048094275023098123.5;
                fixed0x256 e = -0.93322335481643744342575580035176794825198893968114429702091846411734101080123092162893656820177312738451291806995868682861328125;
                fixed0x256 g = -0.00011788606643744342575580035176794825198893968114429702091846411734101080123092162893656820177312738451291806995868682861328125;
                a; b; c; d; e; g;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(fixed_type_invalid_implicit_conversion_size)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed a = 11/4;
                ufixed248x8 b = a;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(fixed_type_invalid_implicit_conversion_lost_data)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed0x256 a = 1/3;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(fixed_type_valid_explicit_conversions)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed0x256 a = ufixed0x256(1/3);
                ufixed0x248 b = ufixed0x248(1/3);
                ufixed0x8 c = ufixed0x8(1/3);
                a; b; c;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(invalid_array_declaration_with_rational)
{
    char const* text = R"(
        contract test {
            function f() {
                uint[3.5] a;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(invalid_array_declaration_with_fixed_type)
{
    char const* text = R"(
        contract test {
            function f() {
                uint[fixed(3.5)] a;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_to_bytes_implicit_conversion)
{
    char const* text = R"(
        contract test {
            function f() {
                bytes32 c = 3.2;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(fixed_to_bytes_implicit_conversion)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed a = 3.25;
                bytes32 c = a;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(mapping_with_fixed_literal)
{
    char const* text = R"(
        contract test {
            mapping(ufixed8x248 => string) fixedString;
            function f() {
                fixedString[0.5] = "Half";
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(fixed_points_inside_structs)
{
    char const* text = R"(
        contract test {
            struct myStruct {
                ufixed a;
                int b;
            }
            myStruct a = myStruct(3.125, 3);
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_array_fixed_types)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed[3] memory a = [fixed(3.5), fixed(-4.25), fixed(967.125)];
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_array_rationals)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed8x8[4] memory a = [3.5, 4.125, 2.5, 4.0];
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(rational_index_access)
{
    char const* text = R"(
        contract test {
            function f() {
                uint[] memory a;
                a[.5];
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_to_fixed_literal_expression)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed8x8 a = 3.5 * 3;
                ufixed8x8 b = 4 - 2.5;
                ufixed8x8 c = 11 / 4;
                ufixed16x240 d = 599 + 0.21875;
                ufixed8x248 e = ufixed8x248(35.245 % 12.9);
                ufixed8x248 f = ufixed8x248(1.2 % 2);
                fixed g = 2 ** -2;
                a; b; c; d; e; f; g;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(rational_as_exponent_value_neg_decimal)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed g = 2 ** -2.2;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_as_exponent_value_pos_decimal)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed b = 3 ** 2.5;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_as_exponent_half)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed24x24 b = 2 ** (1/2);
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_as_exponent_value_neg_quarter)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed40x40 c = 42 ** (-1/4);
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(fixed_point_casting_exponents_15)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed a = 3 ** ufixed(1.5);
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(fixed_point_casting_exponents_half)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed b = 2 ** ufixed(1/2);
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(fixed_point_casting_exponents_neg)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed c = 42 ** fixed(-1/4);
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(fixed_point_casting_exponents_neg_decimal)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed d = 16 ** fixed(-0.5);
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(var_capable_of_holding_constant_rationals)
{
    char const* text = R"(
        contract test {
            function f() {
                var a = 0.12345678;
                var b = 12345678.352;
                var c = 0.00000009;
                a; b; c;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(var_and_rational_with_tuple)
{
    char const* text = R"(
        contract test {
            function f() {
                var (a, b) = (.5, 1/3);
                a; b;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(var_handle_divided_integers)
{
    char const* text = R"(
        contract test {
            function f() {
                var x = 1/3;
            }
        }
    )";
    CHECK_SUCCESS(text);    
}

BOOST_AUTO_TEST_CASE(rational_bitnot_unary_operation)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed a = ~3.5;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_bitor_binary_operation)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed a = 1.5 | 3;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_bitxor_binary_operation)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed a = 1.75 ^ 3;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(rational_bitand_binary_operation)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed a = 1.75 & 3;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(zero_handling)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed8x8 a = 0;
                ufixed8x8 b = 0;
                a; b;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(missing_bool_conversion)
{
    char const* text = R"(
        contract test {
            function b(uint a) {
                bool(a == 1);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(integer_and_fixed_interaction)
{
    char const* text = R"(
        contract test {
            function f() {
                ufixed a = uint128(1) + ufixed(2);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(signed_rational_modulus)
{
    char const* text = R"(
        contract test {
            function f() {
                fixed a = 0.42578125 % -0.4271087646484375;
                fixed b = .5 % a;
                fixed c = a % b;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(one_divided_by_three_integer_conversion)
{
    char const* text = R"(
        contract test {
            function f() {
                uint a = 1/3;
            }
        }
    )";
    BOOST_CHECK(!success(text));
}

BOOST_AUTO_TEST_CASE(unused_return_value)
{
    char const* text = R"(
        contract test {
            function g() returns (uint) {}
            function f() {
                g();
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(unused_return_value_send)
{
    char const* text = R"(
        contract test {
            function f() {
                address(0x12).send(1);
            }
        }
    )";
    CHECK_WARNING(text, "Failure condition of 'send' ignored. Consider using 'transfer' instead.");
}

BOOST_AUTO_TEST_CASE(unused_return_value_call)
{
    char const* text = R"(
        contract test {
            function f() {
                address(0x12).call("abc");
            }
        }
    )";
    CHECK_WARNING(text, "Return value of low-level calls not used");
}

BOOST_AUTO_TEST_CASE(unused_return_value_call_value)
{
    char const* text = R"(
        contract test {
            function f() {
                address(0x12).call.value(2)("abc");
            }
        }
    )";
    CHECK_WARNING(text, "Return value of low-level calls not used");
}

BOOST_AUTO_TEST_CASE(unused_return_value_callcode)
{
    char const* text = R"(
        contract test {
            function f() {
                address(0x12).callcode("abc");
            }
        }
    )";
    CHECK_WARNING(text, "Return value of low-level calls not used");
}

BOOST_AUTO_TEST_CASE(unused_return_value_delegatecall)
{
    char const* text = R"(
        contract test {
            function f() {
                address(0x12).delegatecall("abc");
            }
        }
    )";
    CHECK_WARNING(text, "Return value of low-level calls not used");
}

BOOST_AUTO_TEST_CASE(modifier_without_underscore)
{
    char const* text = R"(
        contract test {
            modifier m() {}
        }
    )";
    CHECK_ERROR(text, SyntaxError, "");
}

BOOST_AUTO_TEST_CASE(payable_in_library)
{
    char const* text = R"(
        library test {
            function f() payable {}
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(payable_external)
{
    char const* text = R"(
        contract test {
            function f() payable external {}
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(payable_internal)
{
    char const* text = R"(
        contract test {
            function f() payable internal {}
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(payable_private)
{
    char const* text = R"(
        contract test {
            function f() payable private {}
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(illegal_override_payable)
{
    char const* text = R"(
        contract B { function f() payable {} }
        contract C is B { function f() {} }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(illegal_override_payable_nonpayable)
{
    char const* text = R"(
        contract B { function f() {} }
        contract C is B { function f() payable {} }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(function_variable_mixin)
{
       // bug #1798 (cpp-ethereum), related to #1286 (solidity)
       char const* text = R"(
               contract attribute {
                       bool ok = false;
               }
               contract func {
                       function ok() returns (bool) { return true; }
               }

               contract attr_func is attribute, func {
                       function checkOk() returns (bool) { return ok(); }
               }
       )";
       CHECK_ERROR(text, DeclarationError, "");
}


BOOST_AUTO_TEST_CASE(payable_constant_conflict)
{
    char const* text = R"(
        contract C { function f() payable constant {} }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(calling_payable)
{
    char const* text = R"(
        contract receiver { function pay() payable {} }
        contract test {
            function f() { (new receiver()).pay.value(10)(); }
            receiver r = new receiver();
            function g() { r.pay.value(10)(); }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(calling_nonpayable)
{
    char const* text = R"(
        contract receiver { function nopay() {} }
        contract test {
            function f() { (new receiver()).nopay.value(10)(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(non_payable_constructor)
{
    char const* text = R"(
        contract C {
            function C() { }
        }
        contract D {
            function f() returns (uint) {
                (new C).value(2)();
                return 2;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(warn_nonpresent_pragma)
{
    char const* text = "contract C {}";
    auto sourceAndError = parseAnalyseAndReturnError(text, true, false);
    BOOST_REQUIRE(!!sourceAndError.second);
    BOOST_REQUIRE(!!sourceAndError.first);
    BOOST_CHECK(searchErrorMessage(*sourceAndError.second, "Source file does not specify required compiler version!"));
}

BOOST_AUTO_TEST_CASE(unsatisfied_version)
{
    char const* text = R"(
        pragma solidity ^99.99.0;
    )";
    BOOST_CHECK(expectError(text, true).type() == Error::Type::SyntaxError);
}

BOOST_AUTO_TEST_CASE(constant_constructor)
{
    char const* text = R"(
        contract test {
            function test() constant {}
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_constructor)
{
    char const* text = R"(
        contract test {
            function test() external {}
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(invalid_array_as_statement)
{
    char const* text = R"(
        contract test {
            struct S { uint x; }
            function test(uint k) { S[k]; }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(using_directive_for_missing_selftype)
{
    char const* text = R"(
        library B {
            function b() {}
        }

        contract A {
            using B for bytes;

            function a() {
                bytes memory x;
                x.b();
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(function_type)
{
    char const* text = R"(
        contract C {
            function f() {
                function(uint) returns (uint) x;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(function_type_parameter)
{
    char const* text = R"(
        contract C {
            function f(function(uint) external returns (uint) g) returns (function(uint) external returns (uint)) {
                return g;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(function_type_returned)
{
    char const* text = R"(
        contract C {
            function f() returns (function(uint) external returns (uint) g) {
                return g;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(private_function_type)
{
    char const* text = R"(
        contract C {
            function f() {
                function(uint) private returns (uint) x;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(public_function_type)
{
    char const* text = R"(
        contract C {
            function f() {
                function(uint) public returns (uint) x;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(payable_internal_function_type)
{
    char const* text = R"(
        contract C {
            function (uint) internal payable returns (uint) x;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(call_value_on_non_payable_function_type)
{
    char const* text = R"(
        contract C {
            function (uint) external returns (uint) x;
            function f() {
                x.value(2)();
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_function_type_returning_internal)
{
    char const* text = R"(
        contract C {
            function() external returns (function () internal) x;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_function_type_taking_internal)
{
    char const* text = R"(
        contract C {
            function(function () internal) external x;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(call_value_on_payable_function_type)
{
    char const* text = R"(
        contract C {
            function (uint) external payable returns (uint) x;
            function f() {
                x.value(2)(1);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(internal_function_as_external_parameter)
{
    // It should not be possible to give internal functions
    // as parameters to external functions.
    char const* text = R"(
        contract C {
            function f(function(uint) internal returns (uint) x) {
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(internal_function_returned_from_public_function)
{
    // It should not be possible to return internal functions from external functions.
    char const* text = R"(
        contract C {
            function f() returns (function(uint) internal returns (uint) x) {
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(internal_function_as_external_parameter_in_library_internal)
{
    char const* text = R"(
        library L {
            function f(function(uint) internal returns (uint) x) internal {
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(internal_function_as_external_parameter_in_library_external)
{
    char const* text = R"(
        library L {
            function f(function(uint) internal returns (uint) x) {
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(function_type_arrays)
{
    char const* text = R"(
        contract C {
            function(uint) external returns (uint)[] public x;
            function(uint) internal returns (uint)[10] y;
            function f() {
                function(uint) returns (uint)[10] memory a;
                function(uint) returns (uint)[10] storage b = y;
                function(uint) external returns (uint)[] memory c;
                c = new function(uint) external returns (uint)[](200);
                a; b;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(delete_function_type)
{
    char const* text = R"(
        contract C {
            function(uint) external returns (uint) x;
            function(uint) internal returns (uint) y;
            function f() {
                delete x;
                var a = y;
                delete a;
                delete y;
                var c = f;
                delete c;
                function(uint) internal returns (uint) g;
                delete g;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(delete_function_type_invalid)
{
    char const* text = R"(
        contract C {
            function f() {
                delete f;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(delete_external_function_type_invalid)
{
    char const* text = R"(
        contract C {
            function f() {
                delete this.f;
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(external_function_to_function_type_calldata_parameter)
{
    // This is a test that checks that the type of the `bytes` parameter is
    // correctly changed from its own type `bytes calldata` to `bytes memory`
    // when converting to a function type.
    char const* text = R"(
        contract C {
            function f(function(bytes memory) external g) { }
            function callback(bytes) external {}
            function g() {
                f(this.callback);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(external_function_type_to_address)
{
    char const* text = R"(
        contract C {
            function f() returns (address) {
                return address(this.f);
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(internal_function_type_to_address)
{
    char const* text = R"(
        contract C {
            function f() returns (address) {
                return address(f);
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Explicit type conversion not allowed");
}

BOOST_AUTO_TEST_CASE(external_function_type_to_uint)
{
    char const* text = R"(
        contract C {
            function f() returns (uint) {
                return uint(this.f);
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Explicit type conversion not allowed");
}

BOOST_AUTO_TEST_CASE(shift_constant_left_negative_rvalue)
{
    char const* text = R"(
        contract C {
            uint public a = 0x42 << -8;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(shift_constant_right_negative_rvalue)
{
    char const* text = R"(
        contract C {
            uint public a = 0x42 >> -8;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(shift_constant_left_excessive_rvalue)
{
    char const* text = R"(
        contract C {
            uint public a = 0x42 << 0x100000000;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(shift_constant_right_excessive_rvalue)
{
    char const* text = R"(
        contract C {
            uint public a = 0x42 >> 0x100000000;
        }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(inline_assembly_unbalanced_positive_stack)
{
    char const* text = R"(
        contract test {
            function f() {
                assembly {
                    1
                }
            }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "Unbalanced stack at the end of a block: 1 surplus item(s).");
}

BOOST_AUTO_TEST_CASE(inline_assembly_unbalanced_negative_stack)
{
    char const* text = R"(
        contract test {
            function f() {
                assembly {
                    pop
                }
            }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "Unbalanced stack at the end of a block: 1 missing item(s).");
}

BOOST_AUTO_TEST_CASE(inline_assembly_unbalanced_two_stack_load)
{
    char const* text = R"(
        contract c {
            uint8 x;
            function f() {
                assembly { x pop }
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Only local variables are supported. To access storage variables,");
}

BOOST_AUTO_TEST_CASE(inline_assembly_in_modifier)
{
    char const* text = R"(
        contract test {
            modifier m {
                uint a = 1;
                assembly {
                    a := 2
                }
                _;
            }
            function f() m {
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(inline_assembly_storage)
{
    char const* text = R"(
        contract test {
            uint x = 1;
            function f() {
                assembly {
                    x := 2
                }
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Only local variables are supported. To access storage variables,");
}

BOOST_AUTO_TEST_CASE(inline_assembly_storage_in_modifiers)
{
    char const* text = R"(
        contract test {
            uint x = 1;
            modifier m {
                assembly {
                    x := 2
                }
                _;
            }
            function f() m {
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Only local variables are supported. To access storage variables,");
}

BOOST_AUTO_TEST_CASE(inline_assembly_constant_assign)
{
    char const* text = R"(
        contract test {
            uint constant x = 1;
            function f() {
                assembly {
                    x := 2
                }
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Constant variables not supported by inline assembly");
}

BOOST_AUTO_TEST_CASE(inline_assembly_constant_access)
{
    char const* text = R"(
        contract test {
            uint constant x = 1;
            function f() {
                assembly {
                    let y := x
                }
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Constant variables not supported by inline assembly");
}

BOOST_AUTO_TEST_CASE(inline_assembly_local_variable_access_out_of_functions)
{
    char const* text = R"(
        contract test {
            function f() {
                uint a;
                assembly {
                    function g() -> x { x := a }
                }
            }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "Cannot access local Solidity variables from inside an inline assembly function.");
}

BOOST_AUTO_TEST_CASE(inline_assembly_local_variable_access_out_of_functions_storage_ptr)
{
    char const* text = R"(
        contract test {
            uint[] r;
            function f() {
                uint[] storage a = r;
                assembly {
                    function g() -> x { x := a_offset }
                }
            }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "Cannot access local Solidity variables from inside an inline assembly function.");
}

BOOST_AUTO_TEST_CASE(inline_assembly_storage_variable_access_out_of_functions)
{
    char const* text = R"(
        contract test {
            uint a;
            function f() {
                assembly {
                    function g() -> x { x := a_slot }
                }
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(invalid_mobile_type)
{
    char const* text = R"(
            contract C {
                function f() {
                    // Invalid number
                    [1, 78901234567890123456789012345678901234567890123456789345678901234567890012345678012345678901234567];
                }
            }
    )";
    CHECK_ERROR(text, TypeError, "");
}

BOOST_AUTO_TEST_CASE(warns_msg_value_in_non_payable_public_function)
{
    char const* text = R"(
        contract C {
            function f() {
                msg.value;
            }
        }
    )";
    CHECK_WARNING(text, "\"msg.value\" used in non-payable function. Do you want to add the \"payable\" modifier to this function?");
}

BOOST_AUTO_TEST_CASE(does_not_warn_msg_value_in_payable_function)
{
    char const* text = R"(
        contract C {
            function f() payable {
                msg.value;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(does_not_warn_msg_value_in_internal_function)
{
    char const* text = R"(
        contract C {
            function f() internal {
                msg.value;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(does_not_warn_msg_value_in_library)
{
    char const* text = R"(
        library C {
            function f() {
                msg.value;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(does_not_warn_non_magic_msg_value)
{
    char const* text = R"(
        contract C {
            struct msg {
                uint256 value;
            }

            function f() {
                msg.value;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(does_not_warn_msg_value_in_modifier_following_non_payable_public_function)
{
    char const* text = R"(
        contract c {
            function f() { }
            modifier m() { msg.value; _; }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(assignment_to_constant)
{
    char const* text = R"(
        contract c {
            uint constant a = 1;
            function f() { a = 2; }
        }
    )";
    CHECK_ERROR(text, TypeError, "Cannot assign to a constant variable.");
}

BOOST_AUTO_TEST_CASE(inconstructible_internal_constructor)
{
    char const* text = R"(
        contract C {
            function C() internal {}
        }
        contract D {
            function f() { var x = new C(); }
        }
    )";
    CHECK_ERROR(text, TypeError, "Contract with internal constructor cannot be created directly.");
}

BOOST_AUTO_TEST_CASE(inconstructible_internal_constructor_inverted)
{
    // Previously, the type information for A was not yet available at the point of
    // "new A".
    char const* text = R"(
        contract B {
            A a;
            function B() {
                a = new A(this);
            }
        }
        contract A {
            function A(address a) internal {}
        }
    )";
    CHECK_ERROR(text, TypeError, "Contract with internal constructor cannot be created directly.");
}

BOOST_AUTO_TEST_CASE(constructible_internal_constructor)
{
    char const* text = R"(
        contract C {
            function C() internal {}
        }
        contract D is C {
            function D() { }
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(address_checksum_type_deduction)
{
    char const* text = R"(
        contract C {
            function f() {
                var x = 0xfA0bFc97E48458494Ccd857e1A85DC91F7F0046E;
                x.send(2);
            }
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(invalid_address_checksum)
{
    char const* text = R"(
        contract C {
            function f() {
                var x = 0xFA0bFc97E48458494Ccd857e1A85DC91F7F0046E;
                x;
            }
        }
    )";
    CHECK_WARNING(text, "checksum");
}

BOOST_AUTO_TEST_CASE(invalid_address_no_checksum)
{
    char const* text = R"(
        contract C {
            function f() {
                var x = 0xfa0bfc97e48458494ccd857e1a85dc91f7f0046e;
                x;
            }
        }
    )";
    CHECK_WARNING(text, "checksum");
}

BOOST_AUTO_TEST_CASE(invalid_address_length)
{
    char const* text = R"(
        contract C {
            function f() {
                var x = 0xA0bFc97E48458494Ccd857e1A85DC91F7F0046E;
                x;
            }
        }
    )";
    CHECK_WARNING(text, "checksum");
}

BOOST_AUTO_TEST_CASE(early_exit_on_fatal_errors)
{
    // This tests a crash that occured because we did not stop for fatal errors.
    char const* text = R"(
        contract C {
            struct S {
                ftring a;
            }
            S public s;
            function s() s {
            }
        }
    )";
    CHECK_ERROR(text, DeclarationError, "Identifier not found or not unique");
}

BOOST_AUTO_TEST_CASE(address_methods)
{
    char const* text = R"(
        contract C {
            function f() {
                address addr;
                uint balance = addr.balance;
                bool callRet = addr.call();
                bool callcodeRet = addr.callcode();
                bool delegatecallRet = addr.delegatecall();
                bool sendRet = addr.send(1);
                addr.transfer(1);
                callRet; callcodeRet; delegatecallRet; sendRet;
            }
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(cyclic_dependency_for_constants)
{
    char const* text = R"(
        contract C {
            uint constant a = a;
        }
    )";
    CHECK_ERROR(text, TypeError, "cyclic dependency via a");
    text = R"(
        contract C {
            uint constant a = b * c;
            uint constant b = 7;
            uint constant c = b + uint(keccak256(d));
            uint constant d = 2 + a;
        }
    )";
    CHECK_ERROR_ALLOW_MULTI(text, TypeError, "a has a cyclic dependency via c");
    text = R"(
        contract C {
            uint constant a = b * c;
            uint constant b = 7;
            uint constant c = 4 + uint(keccak256(d));
            uint constant d = 2 + b;
        }
    )";
    CHECK_SUCCESS(text);
}

BOOST_AUTO_TEST_CASE(interface)
{
    char const* text = R"(
        interface I {
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(interface_constructor)
{
    char const* text = R"(
        interface I {
            function I();
        }
    )";
    CHECK_ERROR(text, TypeError, "Constructor cannot be defined in interfaces");
}

BOOST_AUTO_TEST_CASE(interface_functions)
{
    char const* text = R"(
        interface I {
            function();
            function f();
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(interface_function_bodies)
{
    char const* text = R"(
        interface I {
            function f() {
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Functions in interfaces cannot have an implementation");
}

BOOST_AUTO_TEST_CASE(interface_function_internal)
{
    char const* text = R"(
        interface I {
            function f() internal;
        }
    )";
    CHECK_ERROR(text, TypeError, "Functions in interfaces cannot be internal or private.");
}

BOOST_AUTO_TEST_CASE(interface_function_private)
{
    char const* text = R"(
        interface I {
            function f() private;
        }
    )";
    CHECK_ERROR(text, TypeError, "Functions in interfaces cannot be internal or private.");
}

BOOST_AUTO_TEST_CASE(interface_events)
{
    char const* text = R"(
        interface I {
            event E();
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(interface_inheritance)
{
    char const* text = R"(
        interface A {
        }
        interface I is A {
        }
    )";
    CHECK_ERROR(text, TypeError, "Interfaces cannot inherit");
}


BOOST_AUTO_TEST_CASE(interface_structs)
{
    char const* text = R"(
        interface I {
            struct A {
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Structs cannot be defined in interfaces");
}

BOOST_AUTO_TEST_CASE(interface_variables)
{
    char const* text = R"(
        interface I {
            uint a;
        }
    )";
    CHECK_ERROR(text, TypeError, "Variables cannot be declared in interfaces");
}

BOOST_AUTO_TEST_CASE(interface_function_parameters)
{
    char const* text = R"(
        interface I {
            function f(uint a) returns(bool);
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(interface_enums)
{
    char const* text = R"(
        interface I {
            enum A { B, C }
        }
    )";
    CHECK_ERROR(text, TypeError, "Enumerable cannot be declared in interfaces");
}

BOOST_AUTO_TEST_CASE(using_interface)
{
    char const* text = R"(
        interface I {
            function f();
        }
        contract C is I {
            function f() {
            }
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(using_interface_complex)
{
    char const* text = R"(
        interface I {
            event A();
            function f();
            function g();
            function();
        }
        contract C is I {
            function f() {
            }
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(bare_revert)
{
    char const* text = R"(
        contract C {
            function f(uint x) {
                if (x > 7)
                    revert;
            }
        }
    )";
    CHECK_WARNING(text, "Statement has no effect.");
}

BOOST_AUTO_TEST_CASE(bare_others)
{
    CHECK_WARNING("contract C { function f() { selfdestruct; } }", "Statement has no effect.");
    CHECK_WARNING("contract C { function f() { assert; } }", "Statement has no effect.");
    CHECK_WARNING("contract C { function f() { require; } }", "Statement has no effect.");
    CHECK_WARNING("contract C { function f() { suicide; } }", "Statement has no effect.");
}

BOOST_AUTO_TEST_CASE(pure_statement_in_for_loop)
{
    char const* text = R"(
        contract C {
            function f() {
                for (uint x = 0; x < 10; true)
                    x++;
            }
        }
    )";
    CHECK_WARNING(text, "Statement has no effect.");
}

BOOST_AUTO_TEST_CASE(pure_statement_check_for_regular_for_loop)
{
    char const* text = R"(
        contract C {
            function f() {
                for (uint x = 0; true; x++)
                {}
            }
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(warn_unused_local)
{
    char const* text = R"(
        contract C {
            function f() {
                uint a;
            }
        }
    )";
    CHECK_WARNING(text, "Unused");
}

BOOST_AUTO_TEST_CASE(warn_unused_local_assigned)
{
    char const* text = R"(
        contract C {
            function f() {
                var a = 1;
            }
        }
    )";
    CHECK_WARNING(text, "Unused");
}

BOOST_AUTO_TEST_CASE(warn_unused_param)
{
    char const* text = R"(
        contract C {
            function f(uint a) {
            }
        }
    )";
    CHECK_WARNING(text, "Unused");
    text = R"(
        contract C {
            function f(uint a) {
            }
        }
    )";
    success(text);
}

BOOST_AUTO_TEST_CASE(warn_unused_return_param)
{
    char const* text = R"(
        contract C {
            function f() returns (uint a) {
            }
        }
    )";
    CHECK_WARNING(text, "Unused");
    text = R"(
        contract C {
            function f() returns (uint a) {
                return;
            }
        }
    )";
    CHECK_WARNING(text, "Unused");
    text = R"(
        contract C {
            function f() returns (uint) {
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
    text = R"(
        contract C {
            function f() returns (uint a) {
                a = 1;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
    text = R"(
        contract C {
            function f() returns (uint a) {
                return 1;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(no_unused_warnings)
{
    char const* text = R"(
        contract C {
            function f(uint a) returns (uint b) {
                uint c = 1;
                b = a + c;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(no_unused_dec_after_use)
{
    char const* text = R"(
        contract C {
            function f() {
                a = 7;
                uint a;
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(no_unused_inline_asm)
{
    char const* text = R"(
        contract C {
            function f() {
                uint a;
                assembly {
                    a := 1
                }
            }
        }
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}

BOOST_AUTO_TEST_CASE(callable_crash)
{
    char const* text = R"(
        contract C {
            struct S { uint a; bool x; }
            S public s;
            function C() {
                3({a: 1, x: true});
            }
        }
    )";
    CHECK_ERROR(text, TypeError, "Type is not callable");
}

BOOST_AUTO_TEST_CASE(returndatacopy_as_variable)
{
    char const* text = R"(
        contract c { function f() { uint returndatasize; assembly { returndatasize }}}
    )";
    CHECK_WARNING_ALLOW_MULTI(text, "Variable is shadowed in inline assembly by an instruction of the same name");
}

BOOST_AUTO_TEST_CASE(create2_as_variable)
{
    char const* text = R"(
        contract c { function f() { uint create2; assembly { create2(0, 0, 0, 0) }}}
    )";
    CHECK_WARNING_ALLOW_MULTI(text, "Variable is shadowed in inline assembly by an instruction of the same name");
}

BOOST_AUTO_TEST_CASE(shadowing_warning_can_be_removed)
{
    char const* text = R"(
        contract C {function f() {assembly {}}}
    )";
    CHECK_SUCCESS_NO_WARNINGS(text);
}


BOOST_AUTO_TEST_SUITE_END()

}
}
} // end namespaces