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/*
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/>.
*/
#include <test/libsolidity/SyntaxTest.h>
#include <test/Options.h>
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/throw_exception.hpp>
#include <cctype>
#include <fstream>
#include <memory>
#include <stdexcept>
using namespace dev;
using namespace solidity;
using namespace dev::solidity::test;
using namespace dev::solidity::test::formatting;
using namespace std;
namespace fs = boost::filesystem;
using namespace boost::unit_test;
template<typename IteratorType>
void skipWhitespace(IteratorType& it, IteratorType end)
{
while (it != end && isspace(*it))
++it;
}
template<typename IteratorType>
void skipSlashes(IteratorType& it, IteratorType end)
{
while (it != end && *it == '/')
++it;
}
SyntaxTest::SyntaxTest(string const& _filename)
{
ifstream file(_filename);
if (!file)
BOOST_THROW_EXCEPTION(runtime_error("Cannot open test contract: \"" + _filename + "\"."));
file.exceptions(ios::badbit);
m_source = parseSource(file);
m_expectations = parseExpectations(file);
}
bool SyntaxTest::run(ostream& _stream, string const& _linePrefix, bool const _formatted)
{
m_compiler.reset();
m_compiler.addSource("", "pragma solidity >=0.0;\n" + m_source);
m_compiler.setEVMVersion(dev::test::Options::get().evmVersion());
if (m_compiler.parse())
m_compiler.analyze();
for (auto const& currentError: filterErrors(m_compiler.errors(), true))
m_errorList.emplace_back(SyntaxTestError{currentError->typeName(), errorMessage(*currentError)});
if (m_expectations != m_errorList)
{
string nextIndentLevel = _linePrefix + " ";
FormattedScope(_stream, _formatted, {BOLD, CYAN}) << _linePrefix << "Expected result:" << endl;
printErrorList(_stream, m_expectations, nextIndentLevel, _formatted);
FormattedScope(_stream, _formatted, {BOLD, CYAN}) << _linePrefix << "Obtained result:\n";
printErrorList(_stream, m_errorList, nextIndentLevel, _formatted);
return false;
}
return true;
}
void SyntaxTest::printErrorList(
ostream& _stream,
vector<SyntaxTestError> const& _errorList,
string const& _linePrefix,
bool const _formatted
)
{
if (_errorList.empty())
FormattedScope(_stream, _formatted, {BOLD, GREEN}) << _linePrefix << "Success" << endl;
else
for (auto const& error: _errorList)
{
{
FormattedScope scope(_stream, _formatted, {BOLD, (error.type == "Warning") ? YELLOW : RED});
_stream << _linePrefix;
_stream << error.type << ": ";
}
_stream << error.message << endl;
}
}
string SyntaxTest::errorMessage(Exception const& _e)
{
if (_e.comment() && !_e.comment()->empty())
return boost::replace_all_copy(*_e.comment(), "\n", "\\n");
else
return "NONE";
}
string SyntaxTest::parseSource(istream& _stream)
{
string source;
string line;
string const delimiter("// ----");
while (getline(_stream, line))
if (boost::algorithm::starts_with(line, delimiter))
break;
else
source += line + "\n";
return source;
}
vector<SyntaxTestError> SyntaxTest::parseExpectations(istream& _stream)
{
vector<SyntaxTestError> expectations;
string line;
while (getline(_stream, line))
{
auto it = line.begin();
skipSlashes(it, line.end());
skipWhitespace(it, line.end());
if (it == line.end()) continue;
auto typeBegin = it;
while (it != line.end() && *it != ':')
++it;
string errorType(typeBegin, it);
// skip colon
if (it != line.end()) it++;
skipWhitespace(it, line.end());
string errorMessage(it, line.end());
expectations.emplace_back(SyntaxTestError{move(errorType), move(errorMessage)});
}
return expectations;
}
#if BOOST_VERSION < 105900
test_case *make_test_case(
function<void()> const& _fn,
string const& _name,
string const& /* _filename */,
size_t /* _line */
)
{
return make_test_case(_fn, _name);
}
#endif
bool SyntaxTest::isTestFilename(boost::filesystem::path const& _filename)
{
return _filename.extension().string() == ".sol" &&
!boost::starts_with(_filename.string(), "~") &&
!boost::starts_with(_filename.string(), ".");
}
int SyntaxTest::registerTests(
boost::unit_test::test_suite& _suite,
boost::filesystem::path const& _basepath,
boost::filesystem::path const& _path
)
{
int numTestsAdded = 0;
fs::path fullpath = _basepath / _path;
if (fs::is_directory(fullpath))
{
test_suite* sub_suite = BOOST_TEST_SUITE(_path.filename().string());
for (auto const& entry: boost::iterator_range<fs::directory_iterator>(
fs::directory_iterator(fullpath),
fs::directory_iterator()
))
if (fs::is_directory(entry.path()) || isTestFilename(entry.path().filename()))
numTestsAdded += registerTests(*sub_suite, _basepath, _path / entry.path().filename());
_suite.add(sub_suite);
}
else
{
static vector<unique_ptr<string>> filenames;
filenames.emplace_back(new string(_path.string()));
_suite.add(make_test_case(
[fullpath]
{
BOOST_REQUIRE_NO_THROW({
stringstream errorStream;
if (!SyntaxTest(fullpath.string()).run(errorStream))
BOOST_ERROR("Test expectation mismatch.\n" + errorStream.str());
});
},
_path.stem().string(),
*filenames.back(),
0
));
numTestsAdded = 1;
}
return numTestsAdded;
}
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