path: root/accounts/abi/bind/bind_test.go

// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package bind

import (
    "fmt"
    "io/ioutil"
    "os"
    "os/exec"
    "path/filepath"
    "runtime"
    "strings"
    "testing"

    "github.com/ethereum/go-ethereum/common"
)

var bindTests = []struct {
    name     string
    contract string
    bytecode []string
    abi      []string
    imports  string
    tester   string
    fsigs    []map[string]string
    libs     map[string]string
    types    []string
}{
    // Test that the binding is available in combined and separate forms too
    {
        `Empty`,
        `contract NilContract {}`,
        []string{`606060405260068060106000396000f3606060405200`},
        []string{`[]`},
        `"github.com/ethereum/go-ethereum/common"`,
        `
            if b, err := NewEmpty(common.Address{}, nil); b == nil || err != nil {
                t.Fatalf("combined binding (%v) nil or error (%v) not nil", b, nil)
            }
            if b, err := NewEmptyCaller(common.Address{}, nil); b == nil || err != nil {
                t.Fatalf("caller binding (%v) nil or error (%v) not nil", b, nil)
            }
            if b, err := NewEmptyTransactor(common.Address{}, nil); b == nil || err != nil {
                t.Fatalf("transactor binding (%v) nil or error (%v) not nil", b, nil)
            }
        `,
        nil,
        nil,
        nil,
    },
    // Test that all the official sample contracts bind correctly
    {
        `Token`,
        `https://ethereum.org/token`,
        []string{`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`},
        []string{`[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"spentAllowance","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"inputs":[{"name":"initialSupply","type":"uint256"},{"name":"tokenName","type":"string"},{"name":"decimalUnits","type":"uint8"},{"name":"tokenSymbol","type":"string"}],"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}]`},
        `"github.com/ethereum/go-ethereum/common"`,
        `
            if b, err := NewToken(common.Address{}, nil); b == nil || err != nil {
                t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
            }
        `,
        nil,
        nil,
        nil,
    },
    {
        `Crowdsale`,
        `https://ethereum.org/crowdsale`,
        []string{`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`},
        []string{`[{"constant":false,"inputs":[],"name":"checkGoalReached","outputs":[],"type":"function"},{"constant":true,"inputs":[],"name":"deadline","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"beneficiary","outputs":[{"name":"","type":"address"}],"type":"function"},{"constant":true,"inputs":[],"name":"tokenReward","outputs":[{"name":"","type":"address"}],"type":"function"},{"constant":true,"inputs":[],"name":"fundingGoal","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"amountRaised","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"price","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"funders","outputs":[{"name":"addr","type":"address"},{"name":"amount","type":"uint256"}],"type":"function"},{"inputs":[{"name":"ifSuccessfulSendTo","type":"address"},{"name":"fundingGoalInEthers","type":"uint256"},{"name":"durationInMinutes","type":"uint256"},{"name":"etherCostOfEachToken","type":"uint256"},{"name":"addressOfTokenUsedAsReward","type":"address"}],"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"name":"backer","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"isContribution","type":"bool"}],"name":"FundTransfer","type":"event"}]`},
        `"github.com/ethereum/go-ethereum/common"`,
        `
            if b, err := NewCrowdsale(common.Address{}, nil); b == nil || err != nil {
                t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
            }
        `,
        nil,
        nil,
        nil,
    },
    {
        `DAO`,
        `https://ethereum.org/dao`,
        []string{`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01000a031916815260200191505b5091505060006040518083038185876185025a03f15050505060048101805460ff191660011761ff00191661010017905561116d565b60048101805460ff191660011761ff00191690555b60068101546005820154600483015460408051888152602081019490945283810192909252610100900460ff166060830152517fd220b7272a8b6d0d7d6bcdace67b936a8f175e6d5c1b3ee438b72256b32ab3af9181900360800190a1509291505056a66cc928b5edb82af9bd49922954155ab7b0942694bea4ce44661d9a8736c688`},
        []string{`[{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"proposals","outputs":[{"name":"recipient","type":"address"},{"name":"amount","type":"uint256"},{"name":"description","type":"string"},{"name":"votingDeadline","type":"uint256"},{"name":"executed","type":"bool"},{"name":"proposalPassed","type":"bool"},{"name":"numberOfVotes","type":"uint256"},{"name":"currentResult","type":"int256"},{"name":"proposalHash","type":"bytes32"}],"type":"function"},{"constant":false,"inputs":[{"name":"proposalNumber","type":"uint256"},{"name":"transactionBytecode","type":"bytes"}],"name":"executeProposal","outputs":[{"name":"result","type":"int256"}],"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"memberId","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"numProposals","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"members","outputs":[{"name":"member","type":"address"},{"name":"canVote","type":"bool"},{"name":"name","type":"string"},{"name":"memberSince","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"debatingPeriodInMinutes","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"minimumQuorum","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"type":"function"},{"constant":false,"inputs":[{"name":"targetMember","type":"address"},{"name":"canVote","type":"bool"},{"name":"memberName","type":"string"}],"name":"changeMembership","outputs":[],"type":"function"},{"constant":true,"inputs":[],"name":"majorityMargin","outputs":[{"name":"","type":"int256"}],"type":"function"},{"constant":false,"inputs":[{"name":"beneficiary","type":"address"},{"name":"etherAmount","type":"uint256"},{"name":"JobDescription","type":"string"},{"name":"transactionBytecode","type":"bytes"}],"name":"newProposal","outputs":[{"name":"proposalID","type":"uint256"}],"type":"function"},{"constant":false,"inputs":[{"name":"minimumQuorumForProposals","type":"uint256"},{"name":"minutesForDebate","type":"uint256"},{"name":"marginOfVotesForMajority","type":"int256"}],"name":"changeVotingRules","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"proposalNumber","type":"uint256"},{"name":"supportsProposal","type":"bool"},{"name":"justificationText","type":"string"}],"name":"vote","outputs":[{"name":"voteID","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[{"name":"proposalNumber","type":"uint256"},{"name":"beneficiary","type":"address"},{"name":"etherAmount","type":"uint256"},{"name":"transactionBytecode","type":"bytes"}],"name":"checkProposalCode","outputs":[{"name":"codeChecksOut","type":"bool"}],"type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"type":"function"},{"inputs":[{"name":"minimumQuorumForProposals","type":"uint256"},{"name":"minutesForDebate","type":"uint256"},{"name":"marginOfVotesForMajority","type":"int256"},{"name":"congressLeader","type":"address"}],"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"name":"proposalID","type":"uint256"},{"indexed":false,"name":"recipient","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"description","type":"string"}],"name":"ProposalAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"proposalID","type":"uint256"},{"indexed":false,"name":"position","type":"bool"},{"indexed":false,"name":"voter","type":"address"},{"indexed":false,"name":"justification","type":"string"}],"name":"Voted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"proposalID","type":"uint256"},{"indexed":false,"name":"result","type":"int256"},{"indexed":false,"name":"quorum","type":"uint256"},{"indexed":false,"name":"active","type":"bool"}],"name":"ProposalTallied","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"member","type":"address"},{"indexed":false,"name":"isMember","type":"bool"}],"name":"MembershipChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"minimumQuorum","type":"uint256"},{"indexed":false,"name":"debatingPeriodInMinutes","type":"uint256"},{"indexed":false,"name":"majorityMargin","type":"int256"}],"name":"ChangeOfRules","type":"event"}]`},
        `"github.com/ethereum/go-ethereum/common"`,
        `
            if b, err := NewDAO(common.Address{}, nil); b == nil || err != nil {
                t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
            }
        `,
        nil,
        nil,
        nil,
    },
    // Test that named and anonymous inputs are handled correctly
    {
        `InputChecker`, ``, []string{``},
        []string{`
            [
                {"type":"function","name":"noInput","constant":true,"inputs":[],"outputs":[]},
                {"type":"function","name":"namedInput","constant":true,"inputs":[{"name":"str","type":"string"}],"outputs":[]},
                {"type":"function","name":"anonInput","constant":true,"inputs":[{"name":"","type":"string"}],"outputs":[]},
                {"type":"function","name":"namedInputs","constant":true,"inputs":[{"name":"str1","type":"string"},{"name":"str2","type":"string"}],"outputs":[]},
                {"type":"function","name":"anonInputs","constant":true,"inputs":[{"name":"","type":"string"},{"name":"","type":"string"}],"outputs":[]},
                {"type":"function","name":"mixedInputs","constant":true,"inputs":[{"name":"","type":"string"},{"name":"str","type":"string"}],"outputs":[]}
            ]
        `},
        `
            "fmt"

            "github.com/ethereum/go-ethereum/common"
        `,
        `if b, err := NewInputChecker(common.Address{}, nil); b == nil || err != nil {
             t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
         } else if false { // Don't run, just compile and test types
             var err error

             err = b.NoInput(nil)
             err = b.NamedInput(nil, "")
             err = b.AnonInput(nil, "")
             err = b.NamedInputs(nil, "", "")
             err = b.AnonInputs(nil, "", "")
             err = b.MixedInputs(nil, "", "")

             fmt.Println(err)
         }`,
        nil,
        nil,
        nil,
    },
    // Test that named and anonymous outputs are handled correctly
    {
        `OutputChecker`, ``, []string{``},
        []string{`
            [
                {"type":"function","name":"noOutput","constant":true,"inputs":[],"outputs":[]},
                {"type":"function","name":"namedOutput","constant":true,"inputs":[],"outputs":[{"name":"str","type":"string"}]},
                {"type":"function","name":"anonOutput","constant":true,"inputs":[],"outputs":[{"name":"","type":"string"}]},
                {"type":"function","name":"namedOutputs","constant":true,"inputs":[],"outputs":[{"name":"str1","type":"string"},{"name":"str2","type":"string"}]},
                {"type":"function","name":"collidingOutputs","constant":true,"inputs":[],"outputs":[{"name":"str","type":"string"},{"name":"Str","type":"string"}]},
                {"type":"function","name":"anonOutputs","constant":true,"inputs":[],"outputs":[{"name":"","type":"string"},{"name":"","type":"string"}]},
                {"type":"function","name":"mixedOutputs","constant":true,"inputs":[],"outputs":[{"name":"","type":"string"},{"name":"str","type":"string"}]}
            ]
        `},
        `
            "fmt"

            "github.com/ethereum/go-ethereum/common"
        `,
        `if b, err := NewOutputChecker(common.Address{}, nil); b == nil || err != nil {
             t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
         } else if false { // Don't run, just compile and test types
             var str1, str2 string
             var err error

             err              = b.NoOutput(nil)
             str1, err        = b.NamedOutput(nil)
             str1, err        = b.AnonOutput(nil)
             res, _          := b.NamedOutputs(nil)
             str1, str2, err  = b.CollidingOutputs(nil)
             str1, str2, err  = b.AnonOutputs(nil)
             str1, str2, err  = b.MixedOutputs(nil)

             fmt.Println(str1, str2, res.Str1, res.Str2, err)
         }`,
        nil,
        nil,
        nil,
    },
    // Tests that named, anonymous and indexed events are handled correctly
    {
        `EventChecker`, ``, []string{``},
        []string{`
            [
                {"type":"event","name":"empty","inputs":[]},
                {"type":"event","name":"indexed","inputs":[{"name":"addr","type":"address","indexed":true},{"name":"num","type":"int256","indexed":true}]},
                {"type":"event","name":"mixed","inputs":[{"name":"addr","type":"address","indexed":true},{"name":"num","type":"int256"}]},
                {"type":"event","name":"anonymous","anonymous":true,"inputs":[]},
                {"type":"event","name":"dynamic","inputs":[{"name":"idxStr","type":"string","indexed":true},{"name":"idxDat","type":"bytes","indexed":true},{"name":"str","type":"string"},{"name":"dat","type":"bytes"}]}
            ]
        `},
        `
            "fmt"
            "math/big"
            "reflect"

            "github.com/ethereum/go-ethereum/common"
        `,
        `if e, err := NewEventChecker(common.Address{}, nil); e == nil || err != nil {
             t.Fatalf("binding (%v) nil or error (%v) not nil", e, nil)
         } else if false { // Don't run, just compile and test types
             var (
                 err  error
               res  bool
                 str  string
                 dat  []byte
                 hash common.Hash
             )
             _, err = e.FilterEmpty(nil)
             _, err = e.FilterIndexed(nil, []common.Address{}, []*big.Int{})

             mit, err := e.FilterMixed(nil, []common.Address{})

             res = mit.Next()  // Make sure the iterator has a Next method
             err = mit.Error() // Make sure the iterator has an Error method
             err = mit.Close() // Make sure the iterator has a Close method

             fmt.Println(mit.Event.Raw.BlockHash) // Make sure the raw log is contained within the results
             fmt.Println(mit.Event.Num)           // Make sure the unpacked non-indexed fields are present
             fmt.Println(mit.Event.Addr)          // Make sure the reconstructed indexed fields are present

             dit, err := e.FilterDynamic(nil, []string{}, [][]byte{})

             str  = dit.Event.Str    // Make sure non-indexed strings retain their type
             dat  = dit.Event.Dat    // Make sure non-indexed bytes retain their type
             hash = dit.Event.IdxStr // Make sure indexed strings turn into hashes
             hash = dit.Event.IdxDat // Make sure indexed bytes turn into hashes

             sink := make(chan *EventCheckerMixed)
             sub, err := e.WatchMixed(nil, sink, []common.Address{})
             defer sub.Unsubscribe()

             event := <-sink
             fmt.Println(event.Raw.BlockHash) // Make sure the raw log is contained within the results
             fmt.Println(event.Num)           // Make sure the unpacked non-indexed fields are present
             fmt.Println(event.Addr)          // Make sure the reconstructed indexed fields are present

             fmt.Println(res, str, dat, hash, err)
         }
         // Run a tiny reflection test to ensure disallowed methods don't appear
         if _, ok := reflect.TypeOf(&EventChecker{}).MethodByName("FilterAnonymous"); ok {
            t.Errorf("binding has disallowed method (FilterAnonymous)")
         }`,
        nil,
        nil,
        nil,
    },
    // Test that contract interactions (deploy, transact and call) generate working code
    {
        `Interactor`,
        `
            contract Interactor {
                string public deployString;
                string public transactString;

                function Interactor(string str) {
                  deployString = str;
                }

                function transact(string str) {
                  transactString = str;
                }
            }
        `,
        []string{`6060604052604051610328380380610328833981016040528051018060006000509080519060200190828054600181600116156101000203166002900490600052602060002090601f016020900481019282601f10608d57805160ff19168380011785555b50607c9291505b8082111560ba57838155600101606b565b50505061026a806100be6000396000f35b828001600101855582156064579182015b828111156064578251826000505591602001919060010190609e565b509056606060405260e060020a60003504630d86a0e181146100315780636874e8091461008d578063d736c513146100ea575b005b610190600180546020600282841615610100026000190190921691909104601f810182900490910260809081016040526060828152929190828280156102295780601f106101fe57610100808354040283529160200191610229565b61019060008054602060026001831615610100026000190190921691909104601f810182900490910260809081016040526060828152929190828280156102295780601f106101fe57610100808354040283529160200191610229565b60206004803580820135601f81018490049093026080908101604052606084815261002f946024939192918401918190838280828437509496505050505050508060016000509080519060200190828054600181600116156101000203166002900490600052602060002090601f016020900481019282601f1061023157805160ff19168380011785555b506102619291505b808211156102665760008155830161017d565b60405180806020018281038252838181518152602001915080519060200190808383829060006004602084601f0104600f02600301f150905090810190601f1680156101f05780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b820191906000526020600020905b81548152906001019060200180831161020c57829003601f168201915b505050505081565b82800160010185558215610175579182015b82811115610175578251826000505591602001919060010190610243565b505050565b509056`},
        []string{`[{"constant":true,"inputs":[],"name":"transactString","outputs":[{"name":"","type":"string"}],"type":"function"},{"constant":true,"inputs":[],"name":"deployString","outputs":[{"name":"","type":"string"}],"type":"function"},{"constant":false,"inputs":[{"name":"str","type":"string"}],"name":"transact","outputs":[],"type":"function"},{"inputs":[{"name":"str","type":"string"}],"type":"constructor"}]`},
        `
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy an interaction tester contract and call a transaction on it
            _, _, interactor, err := DeployInteractor(auth, sim, "Deploy string")
            if err != nil {
                t.Fatalf("Failed to deploy interactor contract: %v", err)
            }
            if _, err := interactor.Transact(auth, "Transact string"); err != nil {
                t.Fatalf("Failed to transact with interactor contract: %v", err)
            }
            // Commit all pending transactions in the simulator and check the contract state
            sim.Commit()

            if str, err := interactor.DeployString(nil); err != nil {
                t.Fatalf("Failed to retrieve deploy string: %v", err)
            } else if str != "Deploy string" {
                t.Fatalf("Deploy string mismatch: have '%s', want 'Deploy string'", str)
            }
            if str, err := interactor.TransactString(nil); err != nil {
                t.Fatalf("Failed to retrieve transact string: %v", err)
            } else if str != "Transact string" {
                t.Fatalf("Transact string mismatch: have '%s', want 'Transact string'", str)
            }
        `,
        nil,
        nil,
        nil,
    },
    // Tests that plain values can be properly returned and deserialized
    {
        `Getter`,
        `
            contract Getter {
                function getter() constant returns (string, int, bytes32) {
                    return ("Hi", 1, sha3(""));
                }
            }
        `,
        []string{`606060405260dc8060106000396000f3606060405260e060020a6000350463993a04b78114601a575b005b600060605260c0604052600260809081527f486900000000000000000000000000000000000000000000000000000000000060a05260017fc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a47060e0829052610100819052606060c0908152600261012081905281906101409060a09080838184600060046012f1505081517fffff000000000000000000000000000000000000000000000000000000000000169091525050604051610160819003945092505050f3`},
        []string{`[{"constant":true,"inputs":[],"name":"getter","outputs":[{"name":"","type":"string"},{"name":"","type":"int256"},{"name":"","type":"bytes32"}],"type":"function"}]`},
        `
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy a tuple tester contract and execute a structured call on it
            _, _, getter, err := DeployGetter(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy getter contract: %v", err)
            }
            sim.Commit()

            if str, num, _, err := getter.Getter(nil); err != nil {
                t.Fatalf("Failed to call anonymous field retriever: %v", err)
            } else if str != "Hi" || num.Cmp(big.NewInt(1)) != 0 {
                t.Fatalf("Retrieved value mismatch: have %v/%v, want %v/%v", str, num, "Hi", 1)
            }
        `,
        nil,
        nil,
        nil,
    },
    // Tests that tuples can be properly returned and deserialized
    {
        `Tupler`,
        `
            contract Tupler {
                function tuple() constant returns (string a, int b, bytes32 c) {
                    return ("Hi", 1, sha3(""));
                }
            }
        `,
        []string{`606060405260dc8060106000396000f3606060405260e060020a60003504633175aae28114601a575b005b600060605260c0604052600260809081527f486900000000000000000000000000000000000000000000000000000000000060a05260017fc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a47060e0829052610100819052606060c0908152600261012081905281906101409060a09080838184600060046012f1505081517fffff000000000000000000000000000000000000000000000000000000000000169091525050604051610160819003945092505050f3`},
        []string{`[{"constant":true,"inputs":[],"name":"tuple","outputs":[{"name":"a","type":"string"},{"name":"b","type":"int256"},{"name":"c","type":"bytes32"}],"type":"function"}]`},
        `
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy a tuple tester contract and execute a structured call on it
            _, _, tupler, err := DeployTupler(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy tupler contract: %v", err)
            }
            sim.Commit()

            if res, err := tupler.Tuple(nil); err != nil {
                t.Fatalf("Failed to call structure retriever: %v", err)
            } else if res.A != "Hi" || res.B.Cmp(big.NewInt(1)) != 0 {
                t.Fatalf("Retrieved value mismatch: have %v/%v, want %v/%v", res.A, res.B, "Hi", 1)
            }
        `,
        nil,
        nil,
        nil,
    },
    // Tests that arrays/slices can be properly returned and deserialized.
    // Only addresses are tested, remainder just compiled to keep the test small.
    {
        `Slicer`,
        `
            contract Slicer {
                function echoAddresses(address[] input) constant returns (address[] output) {
                    return input;
                }
                function echoInts(int[] input) constant returns (int[] output) {
                    return input;
                }
                function echoFancyInts(uint24[23] input) constant returns (uint24[23] output) {
                    return input;
                }
                function echoBools(bool[] input) constant returns (bool[] output) {
                    return input;
                }
            }
        `,
        []string{`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`},
        []string{`[{"constant":true,"inputs":[{"name":"input","type":"address[]"}],"name":"echoAddresses","outputs":[{"name":"output","type":"address[]"}],"type":"function"},{"constant":true,"inputs":[{"name":"input","type":"uint24[23]"}],"name":"echoFancyInts","outputs":[{"name":"output","type":"uint24[23]"}],"type":"function"},{"constant":true,"inputs":[{"name":"input","type":"int256[]"}],"name":"echoInts","outputs":[{"name":"output","type":"int256[]"}],"type":"function"},{"constant":true,"inputs":[{"name":"input","type":"bool[]"}],"name":"echoBools","outputs":[{"name":"output","type":"bool[]"}],"type":"function"}]`},
        `
            "math/big"
            "reflect"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/common"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy a slice tester contract and execute a n array call on it
            _, _, slicer, err := DeploySlicer(auth, sim)
            if err != nil {
                    t.Fatalf("Failed to deploy slicer contract: %v", err)
            }
            sim.Commit()

            if out, err := slicer.EchoAddresses(nil, []common.Address{auth.From, common.Address{}}); err != nil {
                    t.Fatalf("Failed to call slice echoer: %v", err)
            } else if !reflect.DeepEqual(out, []common.Address{auth.From, common.Address{}}) {
                    t.Fatalf("Slice return mismatch: have %v, want %v", out, []common.Address{auth.From, common.Address{}})
            }
        `,
        nil,
        nil,
        nil,
    },
    // Tests that anonymous default methods can be correctly invoked
    {
        `Defaulter`,
        `
            contract Defaulter {
                address public caller;

                function() {
                    caller = msg.sender;
                }
            }
        `,
        []string{`6060604052606a8060106000396000f360606040523615601d5760e060020a6000350463fc9c8d3981146040575b605e6000805473ffffffffffffffffffffffffffffffffffffffff191633179055565b606060005473ffffffffffffffffffffffffffffffffffffffff1681565b005b6060908152602090f3`},
        []string{`[{"constant":true,"inputs":[],"name":"caller","outputs":[{"name":"","type":"address"}],"type":"function"}]`},
        `
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy a default method invoker contract and execute its default method
            _, _, defaulter, err := DeployDefaulter(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy defaulter contract: %v", err)
            }
            if _, err := (&DefaulterRaw{defaulter}).Transfer(auth); err != nil {
                t.Fatalf("Failed to invoke default method: %v", err)
            }
            sim.Commit()

            if caller, err := defaulter.Caller(nil); err != nil {
                t.Fatalf("Failed to call address retriever: %v", err)
            } else if (caller != auth.From) {
                t.Fatalf("Address mismatch: have %v, want %v", caller, auth.From)
            }
        `,
        nil,
        nil,
        nil,
    },
    // Tests that non-existent contracts are reported as such (though only simulator test)
    {
        `NonExistent`,
        `
            contract NonExistent {
                function String() constant returns(string) {
                    return "I don't exist";
                }
            }
        `,
        []string{`6060604052609f8060106000396000f3606060405260e060020a6000350463f97a60058114601a575b005b600060605260c0604052600d60809081527f4920646f6e27742065786973740000000000000000000000000000000000000060a052602060c0908152600d60e081905281906101009060a09080838184600060046012f15050815172ffffffffffffffffffffffffffffffffffffff1916909152505060405161012081900392509050f3`},
        []string{`[{"constant":true,"inputs":[],"name":"String","outputs":[{"name":"","type":"string"}],"type":"function"}]`},
        `
            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/common"
            "github.com/ethereum/go-ethereum/core"
        `,
        `
            // Create a simulator and wrap a non-deployed contract

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{}, uint64(10000000000))
            defer sim.Close()

            nonexistent, err := NewNonExistent(common.Address{}, sim)
            if err != nil {
                t.Fatalf("Failed to access non-existent contract: %v", err)
            }
            // Ensure that contract calls fail with the appropriate error
            if res, err := nonexistent.String(nil); err == nil {
                t.Fatalf("Call succeeded on non-existent contract: %v", res)
            } else if (err != bind.ErrNoCode) {
                t.Fatalf("Error mismatch: have %v, want %v", err, bind.ErrNoCode)
            }
        `,
        nil,
        nil,
        nil,
    },
    // Tests that gas estimation works for contracts with weird gas mechanics too.
    {
        `FunkyGasPattern`,
        `
            contract FunkyGasPattern {
                string public field;

                function SetField(string value) {
                    // This check will screw gas estimation! Good, good!
                    if (msg.gas < 100000) {
                        throw;
                    }
                    field = value;
                }
            }
        `,
        []string{`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`},
        []string{`[{"constant":false,"inputs":[{"name":"value","type":"string"}],"name":"SetField","outputs":[],"type":"function"},{"constant":true,"inputs":[],"name":"field","outputs":[{"name":"","type":"string"}],"type":"function"}]`},
        `
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy a funky gas pattern contract
            _, _, limiter, err := DeployFunkyGasPattern(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy funky contract: %v", err)
            }
            sim.Commit()

            // Set the field with automatic estimation and check that it succeeds
            if _, err := limiter.SetField(auth, "automatic"); err != nil {
                t.Fatalf("Failed to call automatically gased transaction: %v", err)
            }
            sim.Commit()

            if field, _ := limiter.Field(nil); field != "automatic" {
                t.Fatalf("Field mismatch: have %v, want %v", field, "automatic")
            }
        `,
        nil,
        nil,
        nil,
    },
    // Test that constant functions can be called from an (optional) specified address
    {
        `CallFrom`,
        `
            contract CallFrom {
                function callFrom() constant returns(address) {
                    return msg.sender;
                }
            }
        `, []string{`6060604052346000575b6086806100176000396000f300606060405263ffffffff60e060020a60003504166349f8e98281146022575b6000565b34600057602c6055565b6040805173ffffffffffffffffffffffffffffffffffffffff9092168252519081900360200190f35b335b905600a165627a7a72305820aef6b7685c0fa24ba6027e4870404a57df701473fe4107741805c19f5138417c0029`},
        []string{`[{"constant":true,"inputs":[],"name":"callFrom","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"}]`},
        `
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/common"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy a sender tester contract and execute a structured call on it
            _, _, callfrom, err := DeployCallFrom(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy sender contract: %v", err)
            }
            sim.Commit()

            if res, err := callfrom.CallFrom(nil); err != nil {
                t.Errorf("Failed to call constant function: %v", err)
            } else if res != (common.Address{}) {
                t.Errorf("Invalid address returned, want: %x, got: %x", (common.Address{}), res)
            }

            for _, addr := range []common.Address{common.Address{}, common.Address{1}, common.Address{2}} {
                if res, err := callfrom.CallFrom(&bind.CallOpts{From: addr}); err != nil {
                    t.Fatalf("Failed to call constant function: %v", err)
                } else if res != addr {
                    t.Fatalf("Invalid address returned, want: %x, got: %x", addr, res)
                }
            }
        `,
        nil,
        nil,
        nil,
    },
    // Tests that methods and returns with underscores inside work correctly.
    {
        `Underscorer`,
        `
        contract Underscorer {
            function UnderscoredOutput() constant returns (int _int, string _string) {
                return (314, "pi");
            }
            function LowerLowerCollision() constant returns (int _res, int res) {
                return (1, 2);
            }
            function LowerUpperCollision() constant returns (int _res, int Res) {
                return (1, 2);
            }
            function UpperLowerCollision() constant returns (int _Res, int res) {
                return (1, 2);
            }
            function UpperUpperCollision() constant returns (int _Res, int Res) {
                return (1, 2);
            }
            function PurelyUnderscoredOutput() constant returns (int _, int res) {
                return (1, 2);
            }
            function AllPurelyUnderscoredOutput() constant returns (int _, int __) {
                return (1, 2);
            }
            function _under_scored_func() constant returns (int _int) {
                return 0;
            }
        }
        `, []string{`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`},
        []string{`[{"constant":true,"inputs":[],"name":"LowerUpperCollision","outputs":[{"name":"_res","type":"int256"},{"name":"Res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_under_scored_func","outputs":[{"name":"_int","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UnderscoredOutput","outputs":[{"name":"_int","type":"int256"},{"name":"_string","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PurelyUnderscoredOutput","outputs":[{"name":"_","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UpperLowerCollision","outputs":[{"name":"_Res","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"AllPurelyUnderscoredOutput","outputs":[{"name":"_","type":"int256"},{"name":"__","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UpperUpperCollision","outputs":[{"name":"_Res","type":"int256"},{"name":"Res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"LowerLowerCollision","outputs":[{"name":"_res","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"}]`},
        `
            "fmt"
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy a underscorer tester contract and execute a structured call on it
            _, _, underscorer, err := DeployUnderscorer(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy underscorer contract: %v", err)
            }
            sim.Commit()

            // Verify that underscored return values correctly parse into structs
            if res, err := underscorer.UnderscoredOutput(nil); err != nil {
                t.Errorf("Failed to call constant function: %v", err)
            } else if res.Int.Cmp(big.NewInt(314)) != 0 || res.String != "pi" {
                t.Errorf("Invalid result, want: {314, \"pi\"}, got: %+v", res)
            }
            // Verify that underscored and non-underscored name collisions force tuple outputs
            var a, b *big.Int

            a, b, _ = underscorer.LowerLowerCollision(nil)
            a, b, _ = underscorer.LowerUpperCollision(nil)
            a, b, _ = underscorer.UpperLowerCollision(nil)
            a, b, _ = underscorer.UpperUpperCollision(nil)
            a, b, _ = underscorer.PurelyUnderscoredOutput(nil)
            a, b, _ = underscorer.AllPurelyUnderscoredOutput(nil)
            a, _ = underscorer.UnderScoredFunc(nil)

            fmt.Println(a, b, err)
        `,
        nil,
        nil,
        nil,
    },
    // Tests that logs can be successfully filtered and decoded.
    {
        `Eventer`,
        `
            contract Eventer {
                event SimpleEvent (
                    address indexed Addr,
                    bytes32 indexed Id,
                    bool    indexed Flag,
                    uint    Value
                );
                function raiseSimpleEvent(address addr, bytes32 id, bool flag, uint value) {
                    SimpleEvent(addr, id, flag, value);
                }

                event NodataEvent (
                    uint   indexed Number,
                    int16  indexed Short,
                    uint32 indexed Long
                );
                function raiseNodataEvent(uint number, int16 short, uint32 long) {
                    NodataEvent(number, short, long);
                }

                event DynamicEvent (
                    string indexed IndexedString,
                    bytes  indexed IndexedBytes,
                    string NonIndexedString,
                    bytes  NonIndexedBytes
                );
                function raiseDynamicEvent(string str, bytes blob) {
                    DynamicEvent(str, blob, str, blob);
                }

                event FixedBytesEvent (
                    bytes24 indexed IndexedBytes,
                    bytes24 NonIndexedBytes
                );
                function raiseFixedBytesEvent(bytes24 blob) {
                    FixedBytesEvent(blob, blob);
                }
            }
        `,
        []string{`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`},
        []string{`[{"constant":false,"inputs":[{"name":"str","type":"string"},{"name":"blob","type":"bytes"}],"name":"raiseDynamicEvent","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"addr","type":"address"},{"name":"id","type":"bytes32"},{"name":"flag","type":"bool"},{"name":"value","type":"uint256"}],"name":"raiseSimpleEvent","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"blob","type":"bytes24"}],"name":"raiseFixedBytesEvent","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"number","type":"uint256"},{"name":"short","type":"int16"},{"name":"long","type":"uint32"}],"name":"raiseNodataEvent","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"Addr","type":"address"},{"indexed":true,"name":"Id","type":"bytes32"},{"indexed":true,"name":"Flag","type":"bool"},{"indexed":false,"name":"Value","type":"uint256"}],"name":"SimpleEvent","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"Number","type":"uint256"},{"indexed":true,"name":"Short","type":"int16"},{"indexed":true,"name":"Long","type":"uint32"}],"name":"NodataEvent","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"IndexedString","type":"string"},{"indexed":true,"name":"IndexedBytes","type":"bytes"},{"indexed":false,"name":"NonIndexedString","type":"string"},{"indexed":false,"name":"NonIndexedBytes","type":"bytes"}],"name":"DynamicEvent","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"IndexedBytes","type":"bytes24"},{"indexed":false,"name":"NonIndexedBytes","type":"bytes24"}],"name":"FixedBytesEvent","type":"event"}]`},
        `
            "math/big"
            "time"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/common"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            // Deploy an eventer contract
            _, _, eventer, err := DeployEventer(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy eventer contract: %v", err)
            }
            sim.Commit()

            // Inject a few events into the contract, gradually more in each block
            for i := 1; i <= 3; i++ {
                for j := 1; j <= i; j++ {
                    if _, err := eventer.RaiseSimpleEvent(auth, common.Address{byte(j)}, [32]byte{byte(j)}, true, big.NewInt(int64(10*i+j))); err != nil {
                        t.Fatalf("block %d, event %d: raise failed: %v", i, j, err)
                    }
                }
                sim.Commit()
            }
            // Test filtering for certain events and ensure they can be found
            sit, err := eventer.FilterSimpleEvent(nil, []common.Address{common.Address{1}, common.Address{3}}, [][32]byte{{byte(1)}, {byte(2)}, {byte(3)}}, []bool{true})
            if err != nil {
                t.Fatalf("failed to filter for simple events: %v", err)
            }
            defer sit.Close()

            sit.Next()
            if sit.Event.Value.Uint64() != 11 || !sit.Event.Flag {
                t.Errorf("simple log content mismatch: have %v, want {11, true}", sit.Event)
            }
            sit.Next()
            if sit.Event.Value.Uint64() != 21 || !sit.Event.Flag {
                t.Errorf("simple log content mismatch: have %v, want {21, true}", sit.Event)
            }
            sit.Next()
            if sit.Event.Value.Uint64() != 31 || !sit.Event.Flag {
                t.Errorf("simple log content mismatch: have %v, want {31, true}", sit.Event)
            }
            sit.Next()
            if sit.Event.Value.Uint64() != 33 || !sit.Event.Flag {
                t.Errorf("simple log content mismatch: have %v, want {33, true}", sit.Event)
            }

            if sit.Next() {
                t.Errorf("unexpected simple event found: %+v", sit.Event)
            }
            if err = sit.Error(); err != nil {
                t.Fatalf("simple event iteration failed: %v", err)
            }
            // Test raising and filtering for an event with no data component
            if _, err := eventer.RaiseNodataEvent(auth, big.NewInt(314), 141, 271); err != nil {
                t.Fatalf("failed to raise nodata event: %v", err)
            }
            sim.Commit()

            nit, err := eventer.FilterNodataEvent(nil, []*big.Int{big.NewInt(314)}, []int16{140, 141, 142}, []uint32{271})
            if err != nil {
                t.Fatalf("failed to filter for nodata events: %v", err)
            }
            defer nit.Close()

            if !nit.Next() {
                t.Fatalf("nodata log not found: %v", nit.Error())
            }
            if nit.Event.Number.Uint64() != 314 {
                t.Errorf("nodata log content mismatch: have %v, want 314", nit.Event.Number)
            }
            if nit.Next() {
                t.Errorf("unexpected nodata event found: %+v", nit.Event)
            }
            if err = nit.Error(); err != nil {
                t.Fatalf("nodata event iteration failed: %v", err)
            }
            // Test raising and filtering for events with dynamic indexed components
            if _, err := eventer.RaiseDynamicEvent(auth, "Hello", []byte("World")); err != nil {
                t.Fatalf("failed to raise dynamic event: %v", err)
            }
            sim.Commit()

            dit, err := eventer.FilterDynamicEvent(nil, []string{"Hi", "Hello", "Bye"}, [][]byte{[]byte("World")})
            if err != nil {
                t.Fatalf("failed to filter for dynamic events: %v", err)
            }
            defer dit.Close()

            if !dit.Next() {
                t.Fatalf("dynamic log not found: %v", dit.Error())
            }
            if dit.Event.NonIndexedString != "Hello" || string(dit.Event.NonIndexedBytes) != "World" || dit.Event.IndexedString != common.HexToHash("0x06b3dfaec148fb1bb2b066f10ec285e7c9bf402ab32aa78a5d38e34566810cd2") || dit.Event.IndexedBytes != common.HexToHash("0xf2208c967df089f60420785795c0a9ba8896b0f6f1867fa7f1f12ad6f79c1a18") {
                t.Errorf("dynamic log content mismatch: have %v, want {'0x06b3dfaec148fb1bb2b066f10ec285e7c9bf402ab32aa78a5d38e34566810cd2, '0xf2208c967df089f60420785795c0a9ba8896b0f6f1867fa7f1f12ad6f79c1a18', 'Hello', 'World'}", dit.Event)
            }
            if dit.Next() {
                t.Errorf("unexpected dynamic event found: %+v", dit.Event)
            }
            if err = dit.Error(); err != nil {
                t.Fatalf("dynamic event iteration failed: %v", err)
            }
            // Test raising and filtering for events with fixed bytes components
            var fblob [24]byte
            copy(fblob[:], []byte("Fixed Bytes"))

            if _, err := eventer.RaiseFixedBytesEvent(auth, fblob); err != nil {
                t.Fatalf("failed to raise fixed bytes event: %v", err)
            }
            sim.Commit()

            fit, err := eventer.FilterFixedBytesEvent(nil, [][24]byte{fblob})
            if err != nil {
                t.Fatalf("failed to filter for fixed bytes events: %v", err)
            }
            defer fit.Close()

            if !fit.Next() {
                t.Fatalf("fixed bytes log not found: %v", fit.Error())
            }
            if fit.Event.NonIndexedBytes != fblob || fit.Event.IndexedBytes != fblob {
                t.Errorf("fixed bytes log content mismatch: have %v, want {'%x', '%x'}", fit.Event, fblob, fblob)
            }
            if fit.Next() {
                t.Errorf("unexpected fixed bytes event found: %+v", fit.Event)
            }
            if err = fit.Error(); err != nil {
                t.Fatalf("fixed bytes event iteration failed: %v", err)
            }
            // Test subscribing to an event and raising it afterwards
            ch := make(chan *EventerSimpleEvent, 16)
            sub, err := eventer.WatchSimpleEvent(nil, ch, nil, nil, nil)
            if err != nil {
                t.Fatalf("failed to subscribe to simple events: %v", err)
            }
            if _, err := eventer.RaiseSimpleEvent(auth, common.Address{255}, [32]byte{255}, true, big.NewInt(255)); err != nil {
                t.Fatalf("failed to raise subscribed simple event: %v", err)
            }
            sim.Commit()

            select {
            case event := <-ch:
                if event.Value.Uint64() != 255 {
                    t.Errorf("simple log content mismatch: have %v, want 255", event)
                }
            case <-time.After(250 * time.Millisecond):
                t.Fatalf("subscribed simple event didn't arrive")
            }
            // Unsubscribe from the event and make sure we're not delivered more
            sub.Unsubscribe()

            if _, err := eventer.RaiseSimpleEvent(auth, common.Address{254}, [32]byte{254}, true, big.NewInt(254)); err != nil {
                t.Fatalf("failed to raise subscribed simple event: %v", err)
            }
            sim.Commit()

            select {
            case event := <-ch:
                t.Fatalf("unsubscribed simple event arrived: %v", event)
            case <-time.After(250 * time.Millisecond):
            }
        `,
        nil,
        nil,
        nil,
    },
    {
        `DeeplyNestedArray`,
        `
            contract DeeplyNestedArray {
                uint64[3][4][5] public deepUint64Array;
                function storeDeepUintArray(uint64[3][4][5] arr) public {
                    deepUint64Array = arr;
                }
                function retrieveDeepArray() public view returns (uint64[3][4][5]) {
                    return deepUint64Array;
                }
            }
        `,
        []string{`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`},
        []string{`[{"constant":false,"inputs":[{"name":"arr","type":"uint64[3][4][5]"}],"name":"storeDeepUintArray","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"retrieveDeepArray","outputs":[{"name":"","type":"uint64[3][4][5]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"},{"name":"","type":"uint256"},{"name":"","type":"uint256"}],"name":"deepUint64Array","outputs":[{"name":"","type":"uint64"}],"payable":false,"stateMutability":"view","type":"function"}]`},
        `
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            //deploy the test contract
            _, _, testContract, err := DeployDeeplyNestedArray(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy test contract: %v", err)
            }

            // Finish deploy.
            sim.Commit()

            //Create coordinate-filled array, for testing purposes.
            testArr := [5][4][3]uint64{}
            for i := 0; i < 5; i++ {
                testArr[i] = [4][3]uint64{}
                for j := 0; j < 4; j++ {
                    testArr[i][j] = [3]uint64{}
                    for k := 0; k < 3; k++ {
                        //pack the coordinates, each array value will be unique, and can be validated easily.
                        testArr[i][j][k] = uint64(i) << 16 | uint64(j) << 8 | uint64(k)
                    }
                }
            }

            if _, err := testContract.StoreDeepUintArray(&bind.TransactOpts{
                From: auth.From,
                Signer: auth.Signer,
            }, testArr); err != nil {
                t.Fatalf("Failed to store nested array in test contract: %v", err)
            }

            sim.Commit()

            retrievedArr, err := testContract.RetrieveDeepArray(&bind.CallOpts{
                From: auth.From,
                Pending: false,
            })
            if err != nil {
                t.Fatalf("Failed to retrieve nested array from test contract: %v", err)
            }

            //quick check to see if contents were copied
            // (See accounts/abi/unpack_test.go for more extensive testing)
            if retrievedArr[4][3][2] != testArr[4][3][2] {
                t.Fatalf("Retrieved value does not match expected value! got: %d, expected: %d. %v", retrievedArr[4][3][2], testArr[4][3][2], err)
            }
        `,
        nil,
        nil,
        nil,
    },
    {
        `CallbackParam`,
        `
            contract FunctionPointerTest {
                function test(function(uint256) external callback) external {
                    callback(1);
                }
            }
        `,
        []string{`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`},
        []string{`[
            {
                "constant": false,
                "inputs": [
                    {
                        "name": "callback",
                        "type": "function"
                    }
                ],
                "name": "test",
                "outputs": [],
                "payable": false,
                "stateMutability": "nonpayable",
                "type": "function"
            }
        ]`}, `
            "strings"
        `,
        `
            if strings.Compare("test(function)", CallbackParamFuncSigs["d7a5aba2"]) != 0 {
                t.Fatalf("")
            }
        `,
        []map[string]string{
            {
                "test(function)": "d7a5aba2",
            },
        },
        nil,
        nil,
    }, {
        `Tuple`,
        `
        pragma solidity >=0.4.19 <0.6.0;
        pragma experimental ABIEncoderV2;

        contract Tuple {
            struct S { uint a; uint[] b; T[] c; }
            struct T { uint x; uint y; }
            event TupleEvent(S a, T[2][] b, T[][2] c, S[] d, uint[] e);

            function func1(S memory a, T[2][] memory b, T[][2] memory c, S[] memory d, uint[] memory e) public pure returns (S memory, T[2][] memory, T[][2] memory, S[] memory, uint[] memory) {
                return (a, b, c, d, e);
            }
            function func2(S memory a, T[2][] memory b, T[][2] memory c, S[] memory d, uint[] memory e) public {
                emit TupleEvent(a, b, c, d, e);
            }
        }

        `,
        []string{`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        []string{`
        [{"constant":true,"inputs":[{"components":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256[]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[]"}],"name":"a","type":"tuple"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"b","type":"tuple[2][]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[][2]"},{"components":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256[]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[]"}],"name":"d","type":"tuple[]"},{"name":"e","type":"uint256[]"}],"name":"func1","outputs":[{"components":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256[]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[]"}],"name":"","type":"tuple"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"","type":"tuple[2][]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"","type":"tuple[][2]"},{"components":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256[]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[]"}],"name":"","type":"tuple[]"},{"name":"","type":"uint256[]"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"components":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256[]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[]"}],"name":"a","type":"tuple"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"b","type":"tuple[2][]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[][2]"},{"components":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256[]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[]"}],"name":"d","type":"tuple[]"},{"name":"e","type":"uint256[]"}],"name":"func2","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"components":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256[]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[]"}],"indexed":false,"name":"a","type":"tuple"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"indexed":false,"name":"b","type":"tuple[2][]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"indexed":false,"name":"c","type":"tuple[][2]"},{"components":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256[]"},{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"c","type":"tuple[]"}],"indexed":false,"name":"d","type":"tuple[]"},{"indexed":false,"name":"e","type":"uint256[]"}],"name":"TupleEvent","type":"event"}]
        `},
        `
            "math/big"
            "reflect"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,

        `
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            _, _, contract, err := DeployTuple(auth, sim)
            if err != nil {
                t.Fatalf("deploy contract failed %v", err)
            }
            sim.Commit()

            check := func(a, b interface{}, errMsg string) {
                if !reflect.DeepEqual(a, b) {
                    t.Fatal(errMsg)
                }
            }

            a := Struct1{
                A: big.NewInt(1),
                B: []*big.Int{big.NewInt(2), big.NewInt(3)},
                C: []Struct0{
                    {
                        X: big.NewInt(4),
                        Y: big.NewInt(5),
                    },
                    {
                        X: big.NewInt(6),
                        Y: big.NewInt(7),
                    },
                },
            }

            b := [][2]Struct0{
                {
                    {
                        X: big.NewInt(8),
                        Y: big.NewInt(9),
                    },
                    {
                        X: big.NewInt(10),
                        Y: big.NewInt(11),
                    },
                },
            }

            c := [2][]Struct0{
                {
                    {
                        X: big.NewInt(12),
                        Y: big.NewInt(13),
                    },
                    {
                        X: big.NewInt(14),
                        Y: big.NewInt(15),
                    },
                },
                {
                    {
                        X: big.NewInt(16),
                        Y: big.NewInt(17),
                    },
                },
            }

            d := []Struct1{a}

            e := []*big.Int{big.NewInt(18), big.NewInt(19)}
            ret1, ret2, ret3, ret4, ret5, err := contract.Func1(nil, a, b, c, d, e)
            if err != nil {
                t.Fatalf("invoke contract failed, err %v", err)
            }
            check(ret1, a, "ret1 mismatch")
            check(ret2, b, "ret2 mismatch")
            check(ret3, c, "ret3 mismatch")
            check(ret4, d, "ret4 mismatch")
            check(ret5, e, "ret5 mismatch")

            _, err = contract.Func2(auth, a, b, c, d, e)
            if err != nil {
                t.Fatalf("invoke contract failed, err %v", err)
            }
            sim.Commit()

            iter, err := contract.FilterTupleEvent(nil)
            if err != nil {
                t.Fatalf("failed to create event filter, err %v", err)
            }
            defer iter.Close()

            iter.Next()
            check(iter.Event.A, a, "field1 mismatch")
            check(iter.Event.B, b, "field2 mismatch")
            check(iter.Event.C, c, "field3 mismatch")
            check(iter.Event.D, d, "field4 mismatch")
            check(iter.Event.E, e, "field5 mismatch")
        `,
        nil,
        nil,
        nil,
    },
    {
        `UseLibrary`,
        `
        library Math {
            function add(uint a, uint b) public view returns(uint) {
                return a + b;
            }
        }

        contract UseLibrary {
            function add (uint c, uint d) public view returns(uint) {
                return Math.add(c,d);
            }
        }
        `,
        []string{
            // Bytecode for the UseLibrary contract
            `608060405234801561001057600080fd5b5061011d806100206000396000f3fe6080604052348015600f57600080fd5b506004361060285760003560e01c8063771602f714602d575b600080fd5b604d60048036036040811015604157600080fd5b5080359060200135605f565b60408051918252519081900360200190f35b600073__$b98c933f0a6ececcd167bd4f9d3299b1a0$__63771602f784846040518363ffffffff1660e01b8152600401808381526020018281526020019250505060206040518083038186803b15801560b757600080fd5b505af415801560ca573d6000803e3d6000fd5b505050506040513d602081101560df57600080fd5b5051939250505056fea265627a7a72305820eb5c38f42445604cfa43d85e3aa5ecc48b0a646456c902dd48420ae7241d06f664736f6c63430005090032`,
            // Bytecode for the Math contract
            `60a3610024600b82828239805160001a607314601757fe5b30600052607381538281f3fe730000000000000000000000000000000000000000301460806040526004361060335760003560e01c8063771602f7146038575b600080fd5b605860048036036040811015604c57600080fd5b5080359060200135606a565b60408051918252519081900360200190f35b019056fea265627a7a723058206fc6c05f3078327f9c763edffdb5ab5f8bd212e293a1306c7d0ad05af3ad35f464736f6c63430005090032`,
        },
        []string{
            `[{"constant":true,"inputs":[{"name":"c","type":"uint256"},{"name":"d","type":"uint256"}],"name":"add","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}]`,
            `[{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"add","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}]`,
        },
        `
            "math/big"

            "github.com/ethereum/go-ethereum/accounts/abi/bind"
            "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
            "github.com/ethereum/go-ethereum/core"
            "github.com/ethereum/go-ethereum/crypto"
        `,
        `
            // Generate a new random account and a funded simulator
            key, _ := crypto.GenerateKey()
            auth := bind.NewKeyedTransactor(key)

            sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
            defer sim.Close()

            //deploy the test contract
            _, _, testContract, err := DeployUseLibrary(auth, sim)
            if err != nil {
                t.Fatalf("Failed to deploy test contract: %v", err)
            }

            // Finish deploy.
            sim.Commit()

            // Check that the library contract has been deployed
            // by calling the contract's add function.
            res, err := testContract.Add(&bind.CallOpts{
                From: auth.From,
                Pending: false,
            }, big.NewInt(1), big.NewInt(2))
            if err != nil {
                t.Fatalf("Failed to call linked contract: %v", err)
            }
            if res.Cmp(big.NewInt(3)) != 0 {
                t.Fatalf("Add did not return the correct result: %d != %d", res, 3)
            }
        `,
        nil,
        map[string]string{
            "b98c933f0a6ececcd167bd4f9d3299b1a0": "Math",
        },
        []string{"UseLibrary", "Math"},
    }, {
        "Overload",
        `
        pragma solidity ^0.5.10;

        contract overload {
          mapping(address => uint256) balances;

          event bar(uint256 i);
          event bar(uint256 i, uint256 j);
            
          function foo(uint256 i) public {
              emit bar(i);
          }
          function foo(uint256 i, uint256 j) public {
              emit bar(i, j);
          }
        }
        `,
        []string{`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`},
        []string{`[{"constant":false,"inputs":[{"name":"i","type":"uint256"},{"name":"j","type":"uint256"}],"name":"foo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"i","type":"uint256"}],"name":"foo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"i","type":"uint256"}],"name":"bar","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"i","type":"uint256"},{"indexed":false,"name":"j","type":"uint256"}],"name":"bar","type":"event"}]`},
        `
        "math/big"
        "time"

        "github.com/ethereum/go-ethereum/accounts/abi/bind"
        "github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
        "github.com/ethereum/go-ethereum/core"
        "github.com/ethereum/go-ethereum/crypto"
        `,
        `
        // Initialize test accounts
        key, _ := crypto.GenerateKey()
        auth := bind.NewKeyedTransactor(key)
        sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
        defer sim.Close()

        // deploy the test contract
        _, _, contract, err := DeployOverload(auth, sim)
        if err != nil {
            t.Fatalf("Failed to deploy contract: %v", err)
        }
        // Finish deploy.
        sim.Commit()

        resCh, stopCh := make(chan uint64), make(chan struct{})

        go func() {
            barSink := make(chan *OverloadBar)
            sub, _ := contract.WatchBar(nil, barSink)
            defer sub.Unsubscribe()

            bar0Sink := make(chan *OverloadBar0)
            sub0, _ := contract.WatchBar0(nil, bar0Sink)
            defer sub0.Unsubscribe()

            for {
                select {
                case ev := <-barSink:
                    resCh <- ev.I.Uint64()
                case ev := <-bar0Sink:
                    resCh <- ev.I.Uint64() + ev.J.Uint64()
                case <-stopCh:
                    return
                }
            }
        }()
        contract.Foo(auth, big.NewInt(1), big.NewInt(2))
        sim.Commit()
        select {
        case n := <-resCh:
            if n != 3 {
                t.Fatalf("Invalid bar0 event")
            }
        case <-time.NewTimer(100 * time.Millisecond).C:
            t.Fatalf("Wait bar0 event timeout")
        }

        contract.Foo0(auth, big.NewInt(1))
        sim.Commit()
        select {
        case n := <-resCh:
            if n != 1 {
                t.Fatalf("Invalid bar event")
            }
        case <-time.NewTimer(100 * time.Millisecond).C:
            t.Fatalf("Wait bar event timeout")
        }
        close(stopCh)
        `,
        nil,
        nil,
        nil,
    },
}

// Tests that packages generated by the binder can be successfully compiled and
// the requested tester run against it.
func TestGolangBindings(t *testing.T) {
    // Skip the test if no Go command can be found
    gocmd := runtime.GOROOT() + "/bin/go"
    if !common.FileExist(gocmd) {
        t.Skip("go sdk not found for testing")
    }
    // Create a temporary workspace for the test suite
    ws, err := ioutil.TempDir("", "")
    if err != nil {
        t.Fatalf("failed to create temporary workspace: %v", err)
    }
    defer os.RemoveAll(ws)

    pkg := filepath.Join(ws, "bindtest")
    if err = os.MkdirAll(pkg, 0700); err != nil {
        t.Fatalf("failed to create package: %v", err)
    }
    // Generate the test suite for all the contracts
    for i, tt := range bindTests {
        var types []string
        if tt.types != nil {
            types = tt.types
        } else {
            types = []string{tt.name}
        }
        // Generate the binding and create a Go source file in the workspace
        bind, err := Bind(types, tt.abi, tt.bytecode, tt.fsigs, "bindtest", LangGo, tt.libs)
        if err != nil {
            t.Fatalf("test %d: failed to generate binding: %v", i, err)
        }
        if err = ioutil.WriteFile(filepath.Join(pkg, strings.ToLower(tt.name)+".go"), []byte(bind), 0600); err != nil {
            t.Fatalf("test %d: failed to write binding: %v", i, err)
        }
        // Generate the test file with the injected test code
        code := fmt.Sprintf(`
            package bindtest

            import (
                "testing"
                %s
            )

            func Test%s(t *testing.T) {
                %s
            }
        `, tt.imports, tt.name, tt.tester)
        if err := ioutil.WriteFile(filepath.Join(pkg, strings.ToLower(tt.name)+"_test.go"), []byte(code), 0600); err != nil {
            t.Fatalf("test %d: failed to write tests: %v", i, err)
        }
    }
    // Test the entire package and report any failures
    cmd := exec.Command(gocmd, "test", "-v", "-count", "1")
    cmd.Dir = pkg
    if out, err := cmd.CombinedOutput(); err != nil {
        t.Fatalf("failed to run binding test: %v\n%s", err, out)
    }
}

// Tests that java binding generated by the binder is exactly matched.
func TestJavaBindings(t *testing.T) {
    var cases = []struct {
        name     string
        contract string
        abi      string
        bytecode string
        expected string
    }{
        {
            "test",
            `
            pragma experimental ABIEncoderV2;
            pragma solidity ^0.5.2;

            contract test {
                function setAddress(address a) public returns(address){}
                function setAddressList(address[] memory a_l) public returns(address[] memory){}
                function setAddressArray(address[2] memory a_a) public returns(address[2] memory){}

                function setUint8(uint8 u8) public returns(uint8){}
                function setUint16(uint16 u16) public returns(uint16){}
                function setUint32(uint32 u32) public returns(uint32){}
                function setUint64(uint64 u64) public returns(uint64){}
                function setUint256(uint256 u256) public returns(uint256){}
                function setUint256List(uint256[] memory u256_l) public returns(uint256[] memory){}
                function setUint256Array(uint256[2] memory u256_a) public returns(uint256[2] memory){}

                function setInt8(int8 i8) public returns(int8){}
                function setInt16(int16 i16) public returns(int16){}
                function setInt32(int32 i32) public returns(int32){}
                function setInt64(int64 i64) public returns(int64){}
                function setInt256(int256 i256) public returns(int256){}
                function setInt256List(int256[] memory i256_l) public returns(int256[] memory){}
                function setInt256Array(int256[2] memory i256_a) public returns(int256[2] memory){}

                function setBytes1(bytes1 b1) public returns(bytes1) {}
                function setBytes32(bytes32 b32) public returns(bytes32) {}
                function setBytes(bytes memory bs) public returns(bytes memory) {}
                function setBytesList(bytes[] memory bs_l) public returns(bytes[] memory) {}
                function setBytesArray(bytes[2] memory bs_a) public returns(bytes[2] memory) {}

                function setString(string memory s) public returns(string memory) {}
                function setStringList(string[] memory s_l) public returns(string[] memory) {}
                function setStringArray(string[2] memory s_a) public returns(string[2] memory) {}

                function setBool(bool b) public returns(bool) {}
                function setBoolList(bool[] memory b_l) public returns(bool[] memory) {}
                function setBoolArray(bool[2] memory b_a) public returns(bool[2] memory) {}
            }`,
            `[{"constant":false,"inputs":[{"name":"u16","type":"uint16"}],"name":"setUint16","outputs":[{"name":"","type":"uint16"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"b_a","type":"bool[2]"}],"name":"setBoolArray","outputs":[{"name":"","type":"bool[2]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"a_a","type":"address[2]"}],"name":"setAddressArray","outputs":[{"name":"","type":"address[2]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"bs_l","type":"bytes[]"}],"name":"setBytesList","outputs":[{"name":"","type":"bytes[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"u8","type":"uint8"}],"name":"setUint8","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"u32","type":"uint32"}],"name":"setUint32","outputs":[{"name":"","type":"uint32"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"b","type":"bool"}],"name":"setBool","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"i256_l","type":"int256[]"}],"name":"setInt256List","outputs":[{"name":"","type":"int256[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"u256_a","type":"uint256[2]"}],"name":"setUint256Array","outputs":[{"name":"","type":"uint256[2]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"b_l","type":"bool[]"}],"name":"setBoolList","outputs":[{"name":"","type":"bool[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"bs_a","type":"bytes[2]"}],"name":"setBytesArray","outputs":[{"name":"","type":"bytes[2]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"a_l","type":"address[]"}],"name":"setAddressList","outputs":[{"name":"","type":"address[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"i256_a","type":"int256[2]"}],"name":"setInt256Array","outputs":[{"name":"","type":"int256[2]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"s_a","type":"string[2]"}],"name":"setStringArray","outputs":[{"name":"","type":"string[2]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"s","type":"string"}],"name":"setString","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"u64","type":"uint64"}],"name":"setUint64","outputs":[{"name":"","type":"uint64"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"i16","type":"int16"}],"name":"setInt16","outputs":[{"name":"","type":"int16"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"i8","type":"int8"}],"name":"setInt8","outputs":[{"name":"","type":"int8"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"u256_l","type":"uint256[]"}],"name":"setUint256List","outputs":[{"name":"","type":"uint256[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"i256","type":"int256"}],"name":"setInt256","outputs":[{"name":"","type":"int256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"i32","type":"int32"}],"name":"setInt32","outputs":[{"name":"","type":"int32"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"b32","type":"bytes32"}],"name":"setBytes32","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"s_l","type":"string[]"}],"name":"setStringList","outputs":[{"name":"","type":"string[]"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"u256","type":"uint256"}],"name":"setUint256","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"bs","type":"bytes"}],"name":"setBytes","outputs":[{"name":"","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"a","type":"address"}],"name":"setAddress","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"i64","type":"int64"}],"name":"setInt64","outputs":[{"name":"","type":"int64"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"b1","type":"bytes1"}],"name":"setBytes1","outputs":[{"name":"","type":"bytes1"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]`,
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            `
// This file is an automatically generated Java binding. Do not modify as any
// change will likely be lost upon the next re-generation!

package bindtest;

import org.ethereum.geth.*;
import java.util.*;



public class Test {
    // ABI is the input ABI used to generate the binding from.
    public final static String ABI = "[{\"constant\":false,\"inputs\":[{\"name\":\"u16\",\"type\":\"uint16\"}],\"name\":\"setUint16\",\"outputs\":[{\"name\":\"\",\"type\":\"uint16\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"b_a\",\"type\":\"bool[2]\"}],\"name\":\"setBoolArray\",\"outputs\":[{\"name\":\"\",\"type\":\"bool[2]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"a_a\",\"type\":\"address[2]\"}],\"name\":\"setAddressArray\",\"outputs\":[{\"name\":\"\",\"type\":\"address[2]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"bs_l\",\"type\":\"bytes[]\"}],\"name\":\"setBytesList\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes[]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"u8\",\"type\":\"uint8\"}],\"name\":\"setUint8\",\"outputs\":[{\"name\":\"\",\"type\":\"uint8\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"u32\",\"type\":\"uint32\"}],\"name\":\"setUint32\",\"outputs\":[{\"name\":\"\",\"type\":\"uint32\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"b\",\"type\":\"bool\"}],\"name\":\"setBool\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"i256_l\",\"type\":\"int256[]\"}],\"name\":\"setInt256List\",\"outputs\":[{\"name\":\"\",\"type\":\"int256[]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"u256_a\",\"type\":\"uint256[2]\"}],\"name\":\"setUint256Array\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256[2]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"b_l\",\"type\":\"bool[]\"}],\"name\":\"setBoolList\",\"outputs\":[{\"name\":\"\",\"type\":\"bool[]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"bs_a\",\"type\":\"bytes[2]\"}],\"name\":\"setBytesArray\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes[2]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"a_l\",\"type\":\"address[]\"}],\"name\":\"setAddressList\",\"outputs\":[{\"name\":\"\",\"type\":\"address[]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"i256_a\",\"type\":\"int256[2]\"}],\"name\":\"setInt256Array\",\"outputs\":[{\"name\":\"\",\"type\":\"int256[2]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"s_a\",\"type\":\"string[2]\"}],\"name\":\"setStringArray\",\"outputs\":[{\"name\":\"\",\"type\":\"string[2]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"s\",\"type\":\"string\"}],\"name\":\"setString\",\"outputs\":[{\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"u64\",\"type\":\"uint64\"}],\"name\":\"setUint64\",\"outputs\":[{\"name\":\"\",\"type\":\"uint64\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"i16\",\"type\":\"int16\"}],\"name\":\"setInt16\",\"outputs\":[{\"name\":\"\",\"type\":\"int16\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"i8\",\"type\":\"int8\"}],\"name\":\"setInt8\",\"outputs\":[{\"name\":\"\",\"type\":\"int8\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"u256_l\",\"type\":\"uint256[]\"}],\"name\":\"setUint256List\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256[]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"i256\",\"type\":\"int256\"}],\"name\":\"setInt256\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"i32\",\"type\":\"int32\"}],\"name\":\"setInt32\",\"outputs\":[{\"name\":\"\",\"type\":\"int32\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"b32\",\"type\":\"bytes32\"}],\"name\":\"setBytes32\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"s_l\",\"type\":\"string[]\"}],\"name\":\"setStringList\",\"outputs\":[{\"name\":\"\",\"type\":\"string[]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"u256\",\"type\":\"uint256\"}],\"name\":\"setUint256\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"bs\",\"type\":\"bytes\"}],\"name\":\"setBytes\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"a\",\"type\":\"address\"}],\"name\":\"setAddress\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"i64\",\"type\":\"int64\"}],\"name\":\"setInt64\",\"outputs\":[{\"name\":\"\",\"type\":\"int64\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"b1\",\"type\":\"bytes1\"}],\"name\":\"setBytes1\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes1\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]";
    
    
    // BYTECODE is the compiled bytecode used for deploying new contracts.
    public final static String BYTECODE = 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    // deploy deploys a new Ethereum contract, binding an instance of Test to it.
    public static Test deploy(TransactOpts auth, EthereumClient client) throws Exception {
        Interfaces args = Geth.newInterfaces(0);
        String bytecode = BYTECODE;
        
        
        return new Test(Geth.deployContract(auth, ABI, Geth.decodeFromHex(bytecode), client, args));
    }

    // Internal constructor used by contract deployment.
    private Test(BoundContract deployment) {
        this.Address  = deployment.getAddress();
        this.Deployer = deployment.getDeployer();
        this.Contract = deployment;
    }
    

    // Ethereum address where this contract is located at.
    public final Address Address;

    // Ethereum transaction in which this contract was deployed (if known!).
    public final Transaction Deployer;

    // Contract instance bound to a blockchain address.
    private final BoundContract Contract;

    // Creates a new instance of Test, bound to a specific deployed contract.
    public Test(Address address, EthereumClient client) throws Exception {
        this(Geth.bindContract(address, ABI, client));
    }

    

    
    // setAddress is a paid mutator transaction binding the contract method 0xe30081a0.
    //
    // Solidity: function setAddress(address a) returns(address)
    public Transaction setAddress(TransactOpts opts, Address a) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setAddress(a);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setAddress"    , args);
    }
    
    // setAddressArray is a paid mutator transaction binding the contract method 0x151f5471.
    //
    // Solidity: function setAddressArray(address[2] a_a) returns(address[2])
    public Transaction setAddressArray(TransactOpts opts, Addresses a_a) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setAddresses(a_a);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setAddressArray"   , args);
    }
    
    // setAddressList is a paid mutator transaction binding the contract method 0x5be6b37e.
    //
    // Solidity: function setAddressList(address[] a_l) returns(address[])
    public Transaction setAddressList(TransactOpts opts, Addresses a_l) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setAddresses(a_l);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setAddressList"    , args);
    }
    
    // setBool is a paid mutator transaction binding the contract method 0x1e26fd33.
    //
    // Solidity: function setBool(bool b) returns(bool)
    public Transaction setBool(TransactOpts opts, boolean b) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBool(b);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setBool"   , args);
    }
    
    // setBoolArray is a paid mutator transaction binding the contract method 0x118a9718.
    //
    // Solidity: function setBoolArray(bool[2] b_a) returns(bool[2])
    public Transaction setBoolArray(TransactOpts opts, Bools b_a) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBools(b_a);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setBoolArray"  , args);
    }
    
    // setBoolList is a paid mutator transaction binding the contract method 0x4d5ee6da.
    //
    // Solidity: function setBoolList(bool[] b_l) returns(bool[])
    public Transaction setBoolList(TransactOpts opts, Bools b_l) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBools(b_l);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setBoolList"   , args);
    }
    
    // setBytes is a paid mutator transaction binding the contract method 0xda359dc8.
    //
    // Solidity: function setBytes(bytes bs) returns(bytes)
    public Transaction setBytes(TransactOpts opts, byte[] bs) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBinary(bs);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setBytes"  , args);
    }
    
    // setBytes1 is a paid mutator transaction binding the contract method 0xfba1a1c3.
    //
    // Solidity: function setBytes1(bytes1 b1) returns(bytes1)
    public Transaction setBytes1(TransactOpts opts, byte[] b1) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBinary(b1);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setBytes1" , args);
    }
    
    // setBytes32 is a paid mutator transaction binding the contract method 0xc2b12a73.
    //
    // Solidity: function setBytes32(bytes32 b32) returns(bytes32)
    public Transaction setBytes32(TransactOpts opts, byte[] b32) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBinary(b32);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setBytes32"    , args);
    }
    
    // setBytesArray is a paid mutator transaction binding the contract method 0x5119655d.
    //
    // Solidity: function setBytesArray(bytes[2] bs_a) returns(bytes[2])
    public Transaction setBytesArray(TransactOpts opts, Binaries bs_a) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBinaries(bs_a);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setBytesArray" , args);
    }
    
    // setBytesList is a paid mutator transaction binding the contract method 0x16c105e2.
    //
    // Solidity: function setBytesList(bytes[] bs_l) returns(bytes[])
    public Transaction setBytesList(TransactOpts opts, Binaries bs_l) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBinaries(bs_l);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setBytesList"  , args);
    }
    
    // setInt16 is a paid mutator transaction binding the contract method 0x86114cea.
    //
    // Solidity: function setInt16(int16 i16) returns(int16)
    public Transaction setInt16(TransactOpts opts, short i16) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setInt16(i16);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setInt16"  , args);
    }
    
    // setInt256 is a paid mutator transaction binding the contract method 0xa53b1c1e.
    //
    // Solidity: function setInt256(int256 i256) returns(int256)
    public Transaction setInt256(TransactOpts opts, BigInt i256) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBigInt(i256);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setInt256" , args);
    }
    
    // setInt256Array is a paid mutator transaction binding the contract method 0x6aa482fc.
    //
    // Solidity: function setInt256Array(int256[2] i256_a) returns(int256[2])
    public Transaction setInt256Array(TransactOpts opts, BigInts i256_a) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBigInts(i256_a);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setInt256Array"    , args);
    }
    
    // setInt256List is a paid mutator transaction binding the contract method 0x22722302.
    //
    // Solidity: function setInt256List(int256[] i256_l) returns(int256[])
    public Transaction setInt256List(TransactOpts opts, BigInts i256_l) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBigInts(i256_l);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setInt256List" , args);
    }
    
    // setInt32 is a paid mutator transaction binding the contract method 0xb7d5df31.
    //
    // Solidity: function setInt32(int32 i32) returns(int32)
    public Transaction setInt32(TransactOpts opts, int i32) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setInt32(i32);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setInt32"  , args);
    }
    
    // setInt64 is a paid mutator transaction binding the contract method 0xe673eb32.
    //
    // Solidity: function setInt64(int64 i64) returns(int64)
    public Transaction setInt64(TransactOpts opts, long i64) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setInt64(i64);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setInt64"  , args);
    }
    
    // setInt8 is a paid mutator transaction binding the contract method 0x9a19a953.
    //
    // Solidity: function setInt8(int8 i8) returns(int8)
    public Transaction setInt8(TransactOpts opts, byte i8) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setInt8(i8);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setInt8"   , args);
    }
    
    // setString is a paid mutator transaction binding the contract method 0x7fcaf666.
    //
    // Solidity: function setString(string s) returns(string)
    public Transaction setString(TransactOpts opts, String s) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setString(s);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setString" , args);
    }
    
    // setStringArray is a paid mutator transaction binding the contract method 0x7173b695.
    //
    // Solidity: function setStringArray(string[2] s_a) returns(string[2])
    public Transaction setStringArray(TransactOpts opts, Strings s_a) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setStrings(s_a);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setStringArray"    , args);
    }
    
    // setStringList is a paid mutator transaction binding the contract method 0xc5777961.
    //
    // Solidity: function setStringList(string[] s_l) returns(string[])
    public Transaction setStringList(TransactOpts opts, Strings s_l) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setStrings(s_l);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setStringList" , args);
    }
    
    // setUint16 is a paid mutator transaction binding the contract method 0x0477988a.
    //
    // Solidity: function setUint16(uint16 u16) returns(uint16)
    public Transaction setUint16(TransactOpts opts, BigInt u16) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setUint16(u16);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setUint16" , args);
    }
    
    // setUint256 is a paid mutator transaction binding the contract method 0xd2282dc5.
    //
    // Solidity: function setUint256(uint256 u256) returns(uint256)
    public Transaction setUint256(TransactOpts opts, BigInt u256) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBigInt(u256);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setUint256"    , args);
    }
    
    // setUint256Array is a paid mutator transaction binding the contract method 0x2766a755.
    //
    // Solidity: function setUint256Array(uint256[2] u256_a) returns(uint256[2])
    public Transaction setUint256Array(TransactOpts opts, BigInts u256_a) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBigInts(u256_a);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setUint256Array"   , args);
    }
    
    // setUint256List is a paid mutator transaction binding the contract method 0xa0709e19.
    //
    // Solidity: function setUint256List(uint256[] u256_l) returns(uint256[])
    public Transaction setUint256List(TransactOpts opts, BigInts u256_l) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setBigInts(u256_l);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setUint256List"    , args);
    }
    
    // setUint32 is a paid mutator transaction binding the contract method 0x1c9352e2.
    //
    // Solidity: function setUint32(uint32 u32) returns(uint32)
    public Transaction setUint32(TransactOpts opts, BigInt u32) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setUint32(u32);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setUint32" , args);
    }
    
    // setUint64 is a paid mutator transaction binding the contract method 0x822cba69.
    //
    // Solidity: function setUint64(uint64 u64) returns(uint64)
    public Transaction setUint64(TransactOpts opts, BigInt u64) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setUint64(u64);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setUint64" , args);
    }
    
    // setUint8 is a paid mutator transaction binding the contract method 0x1774e646.
    //
    // Solidity: function setUint8(uint8 u8) returns(uint8)
    public Transaction setUint8(TransactOpts opts, BigInt u8) throws Exception {
        Interfaces args = Geth.newInterfaces(1);
        Interface arg0 = Geth.newInterface();arg0.setUint8(u8);args.set(0,arg0);
        
        return this.Contract.transact(opts, "setUint8"  , args);
    }
    
}

`,
        },
    }
    for i, c := range cases {
        binding, err := Bind([]string{c.name}, []string{c.abi}, []string{c.bytecode}, nil, "bindtest", LangJava, nil)
        if err != nil {
            t.Fatalf("test %d: failed to generate binding: %v", i, err)
        }
        if binding != c.expected {
            t.Fatalf("test %d: generated binding mismatch, has %s, want %s", i, binding, c.expected)
        }
    }
}