github.com/waltonchain/waltonchain_gwtc_src@v1.1.4-0.20201225072101-8a298c95a819/accounts/abi/bind/bind_test.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-wtc library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-wtc library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package bind
    18  
    19  import (
    20  	"fmt"
    21  	"io/ioutil"
    22  	"os"
    23  	"os/exec"
    24  	"path/filepath"
    25  	"runtime"
    26  	"strings"
    27  	"testing"
    28  
    29  	"github.com/wtc/go-wtc/common"
    30  	"golang.org/x/tools/imports"
    31  )
    32  
    33  var bindTests = []struct {
    34  	name     string
    35  	contract string
    36  	bytecode string
    37  	abi      string
    38  	tester   string
    39  }{
    40  	// Test that the binding is available in combined and separate forms too
    41  	{
    42  		`Empty`,
    43  		`contract NilContract {}`,
    44  		`606060405260068060106000396000f3606060405200`,
    45  		`[]`,
    46  		`
    47  			if b, err := NewEmpty(common.Address{}, nil); b == nil || err != nil {
    48  				t.Fatalf("combined binding (%v) nil or error (%v) not nil", b, nil)
    49  			}
    50  			if b, err := NewEmptyCaller(common.Address{}, nil); b == nil || err != nil {
    51  				t.Fatalf("caller binding (%v) nil or error (%v) not nil", b, nil)
    52  			}
    53  			if b, err := NewEmptyTransactor(common.Address{}, nil); b == nil || err != nil {
    54  				t.Fatalf("transactor binding (%v) nil or error (%v) not nil", b, nil)
    55  			}
    56  		`,
    57  	},
    58  	// Test that all the official sample contracts bind correctly
    59  	{
    60  		`Token`,
    61  		`https://wtc.org/token`,
    62  		`60606040526040516107fd3803806107fd83398101604052805160805160a05160c051929391820192909101600160a060020a0333166000908152600360209081526040822086905581548551838052601f6002600019610100600186161502019093169290920482018390047f290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e56390810193919290918801908390106100e857805160ff19168380011785555b506101189291505b8082111561017157600081556001016100b4565b50506002805460ff19168317905550505050610658806101a56000396000f35b828001600101855582156100ac579182015b828111156100ac5782518260005055916020019190600101906100fa565b50508060016000509080519060200190828054600181600116156101000203166002900490600052602060002090601f016020900481019282601f1061017557805160ff19168380011785555b506100c89291506100b4565b5090565b82800160010185558215610165579182015b8281111561016557825182600050559160200191906001019061018756606060405236156100775760e060020a600035046306fdde03811461007f57806323b872dd146100dc578063313ce5671461010e57806370a082311461011a57806395d89b4114610132578063a9059cbb1461018e578063cae9ca51146101bd578063dc3080f21461031c578063dd62ed3e14610341575b610365610002565b61036760008054602060026001831615610100026000190190921691909104601f810182900490910260809081016040526060828152929190828280156104eb5780601f106104c0576101008083540402835291602001916104eb565b6103d5600435602435604435600160a060020a038316600090815260036020526040812054829010156104f357610002565b6103e760025460ff1681565b6103d560043560036020526000908152604090205481565b610367600180546020600282841615610100026000190190921691909104601f810182900490910260809081016040526060828152929190828280156104eb5780601f106104c0576101008083540402835291602001916104eb565b610365600435602435600160a060020a033316600090815260036020526040902054819010156103f157610002565b60806020604435600481810135601f8101849004909302840160405260608381526103d5948235946024803595606494939101919081908382808284375094965050505050505060006000836004600050600033600160a060020a03168152602001908152602001600020600050600087600160a060020a031681526020019081526020016000206000508190555084905080600160a060020a0316638f4ffcb1338630876040518560e060020a0281526004018085600160a060020a0316815260200184815260200183600160a060020a03168152602001806020018281038252838181518152602001915080519060200190808383829060006004602084601f0104600f02600301f150905090810190601f1680156102f25780820380516001836020036101000a031916815260200191505b50955050505050506000604051808303816000876161da5a03f11561000257505050509392505050565b6005602090815260043560009081526040808220909252602435815220546103d59081565b60046020818152903560009081526040808220909252602435815220546103d59081565b005b60405180806020018281038252838181518152602001915080519060200190808383829060006004602084601f0104600f02600301f150905090810190601f1680156103c75780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b60408051918252519081900360200190f35b6060908152602090f35b600160a060020a03821660009081526040902054808201101561041357610002565b806003600050600033600160a060020a03168152602001908152602001600020600082828250540392505081905550806003600050600084600160a060020a0316815260200190815260200160002060008282825054019250508190555081600160a060020a031633600160a060020a03167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef836040518082815260200191505060405180910390a35050565b820191906000526020600020905b8154815290600101906020018083116104ce57829003601f168201915b505050505081565b600160a060020a03831681526040812054808301101561051257610002565b600160a060020a0380851680835260046020908152604080852033949094168086529382528085205492855260058252808520938552929052908220548301111561055c57610002565b816003600050600086600160a060020a03168152602001908152602001600020600082828250540392505081905550816003600050600085600160a060020a03168152602001908152602001600020600082828250540192505081905550816005600050600086600160a060020a03168152602001908152602001600020600050600033600160a060020a0316815260200190815260200160002060008282825054019250508190555082600160a060020a031633600160a060020a03167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef846040518082815260200191505060405180910390a3939250505056`,
    63  		`[{"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"}]`,
    64  		`
    65  			if b, err := NewToken(common.Address{}, nil); b == nil || err != nil {
    66  				t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
    67  			}
    68  		`,
    69  	},
    70  	{
    71  		`Crowdsale`,
    72  		`https://wtc.org/crowdsale`,
    73  		`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`,
    74  		`[{"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"}]`,
    75  		`
    76  			if b, err := NewCrowdsale(common.Address{}, nil); b == nil || err != nil {
    77  				t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
    78  			}
    79  		`,
    80  	},
    81  	{
    82  		`DAO`,
    83  		`https://wtc.org/dao`,
    84  		`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31916815260200191505b5091505060006040518083038185876185025a03f15050505060048101805460ff191660011761ff00191661010017905561116d565b60048101805460ff191660011761ff00191690555b60068101546005820154600483015460408051888152602081019490945283810192909252610100900460ff166060830152517fd220b7272a8b6d0d7d6bcdace67b936a8f175e6d5c1b3ee438b72256b32ab3af9181900360800190a1509291505056a66cc928b5edb82af9bd49922954155ab7b0942694bea4ce44661d9a8736c688`,
    85  		`[{"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"}]`,
    86  		`
    87  			if b, err := NewDAO(common.Address{}, nil); b == nil || err != nil {
    88  				t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
    89  			}
    90  		`,
    91  	},
    92  	// Test that named and anonymous inputs are handled correctly
    93  	{
    94  		`InputChecker`, ``, ``,
    95  		`
    96  			[
    97  				{"type":"function","name":"noInput","constant":true,"inputs":[],"outputs":[]},
    98  				{"type":"function","name":"namedInput","constant":true,"inputs":[{"name":"str","type":"string"}],"outputs":[]},
    99  				{"type":"function","name":"anonInput","constant":true,"inputs":[{"name":"","type":"string"}],"outputs":[]},
   100  				{"type":"function","name":"namedInputs","constant":true,"inputs":[{"name":"str1","type":"string"},{"name":"str2","type":"string"}],"outputs":[]},
   101  				{"type":"function","name":"anonInputs","constant":true,"inputs":[{"name":"","type":"string"},{"name":"","type":"string"}],"outputs":[]},
   102  				{"type":"function","name":"mixedInputs","constant":true,"inputs":[{"name":"","type":"string"},{"name":"str","type":"string"}],"outputs":[]}
   103  			]
   104  		`,
   105  		`if b, err := NewInputChecker(common.Address{}, nil); b == nil || err != nil {
   106  			 t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
   107  		 } else if false { // Don't run, just compile and test types
   108  			 var err error
   109  
   110  			 err = b.NoInput(nil)
   111  			 err = b.NamedInput(nil, "")
   112  			 err = b.AnonInput(nil, "")
   113  			 err = b.NamedInputs(nil, "", "")
   114  			 err = b.AnonInputs(nil, "", "")
   115  			 err = b.MixedInputs(nil, "", "")
   116  
   117  			 fmt.Println(err)
   118  		 }`,
   119  	},
   120  	// Test that named and anonymous outputs are handled correctly
   121  	{
   122  		`OutputChecker`, ``, ``,
   123  		`
   124  			[
   125  				{"type":"function","name":"noOutput","constant":true,"inputs":[],"outputs":[]},
   126  				{"type":"function","name":"namedOutput","constant":true,"inputs":[],"outputs":[{"name":"str","type":"string"}]},
   127  				{"type":"function","name":"anonOutput","constant":true,"inputs":[],"outputs":[{"name":"","type":"string"}]},
   128  				{"type":"function","name":"namedOutputs","constant":true,"inputs":[],"outputs":[{"name":"str1","type":"string"},{"name":"str2","type":"string"}]},
   129  				{"type":"function","name":"anonOutputs","constant":true,"inputs":[],"outputs":[{"name":"","type":"string"},{"name":"","type":"string"}]},
   130  				{"type":"function","name":"mixedOutputs","constant":true,"inputs":[],"outputs":[{"name":"","type":"string"},{"name":"str","type":"string"}]}
   131  			]
   132  		`,
   133  		`if b, err := NewOutputChecker(common.Address{}, nil); b == nil || err != nil {
   134  			 t.Fatalf("binding (%v) nil or error (%v) not nil", b, nil)
   135  		 } else if false { // Don't run, just compile and test types
   136  			 var str1, str2 string
   137  			 var err error
   138  
   139  			 err              = b.NoOutput(nil)
   140  			 str1, err        = b.NamedOutput(nil)
   141  			 str1, err        = b.AnonOutput(nil)
   142  			 res, _          := b.NamedOutputs(nil)
   143  			 str1, str2, err  = b.AnonOutputs(nil)
   144  			 str1, str2, err  = b.MixedOutputs(nil)
   145  
   146  			 fmt.Println(str1, str2, res.Str1, res.Str2, err)
   147  		 }`,
   148  	},
   149  	// Test that contract interactions (deploy, transact and call) generate working code
   150  	{
   151  		`Interactor`,
   152  		`
   153  			contract Interactor {
   154  				string public deployString;
   155  				string public transactString;
   156  
   157  				function Interactor(string str) {
   158  				  deployString = str;
   159  				}
   160  
   161  				function transact(string str) {
   162  				  transactString = str;
   163  				}
   164  			}
   165  		`,
   166  		`6060604052604051610328380380610328833981016040528051018060006000509080519060200190828054600181600116156101000203166002900490600052602060002090601f016020900481019282601f10608d57805160ff19168380011785555b50607c9291505b8082111560ba57838155600101606b565b50505061026a806100be6000396000f35b828001600101855582156064579182015b828111156064578251826000505591602001919060010190609e565b509056606060405260e060020a60003504630d86a0e181146100315780636874e8091461008d578063d736c513146100ea575b005b610190600180546020600282841615610100026000190190921691909104601f810182900490910260809081016040526060828152929190828280156102295780601f106101fe57610100808354040283529160200191610229565b61019060008054602060026001831615610100026000190190921691909104601f810182900490910260809081016040526060828152929190828280156102295780601f106101fe57610100808354040283529160200191610229565b60206004803580820135601f81018490049093026080908101604052606084815261002f946024939192918401918190838280828437509496505050505050508060016000509080519060200190828054600181600116156101000203166002900490600052602060002090601f016020900481019282601f1061023157805160ff19168380011785555b506102619291505b808211156102665760008155830161017d565b60405180806020018281038252838181518152602001915080519060200190808383829060006004602084601f0104600f02600301f150905090810190601f1680156101f05780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b820191906000526020600020905b81548152906001019060200180831161020c57829003601f168201915b505050505081565b82800160010185558215610175579182015b82811115610175578251826000505591602001919060010190610243565b505050565b509056`,
   167  		`[{"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"}]`,
   168  		`
   169  			// Generate a new random account and a funded simulator
   170  			key, _ := crypto.GenerateKey()
   171  			auth := bind.NewKeyedTransactor(key)
   172  			sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}})
   173  
   174  			// Deploy an interaction tester contract and call a transaction on it
   175  			_, _, interactor, err := DeployInteractor(auth, sim, "Deploy string")
   176  			if err != nil {
   177  				t.Fatalf("Failed to deploy interactor contract: %v", err)
   178  			}
   179  			if _, err := interactor.Transact(auth, "Transact string"); err != nil {
   180  				t.Fatalf("Failed to transact with interactor contract: %v", err)
   181  			}
   182  			// Commit all pending transactions in the simulator and check the contract state
   183  			sim.Commit()
   184  
   185  			if str, err := interactor.DeployString(nil); err != nil {
   186  				t.Fatalf("Failed to retrieve deploy string: %v", err)
   187  			} else if str != "Deploy string" {
   188  				t.Fatalf("Deploy string mismatch: have '%s', want 'Deploy string'", str)
   189  			}
   190  			if str, err := interactor.TransactString(nil); err != nil {
   191  				t.Fatalf("Failed to retrieve transact string: %v", err)
   192  			} else if str != "Transact string" {
   193  				t.Fatalf("Transact string mismatch: have '%s', want 'Transact string'", str)
   194  			}
   195  		`,
   196  	},
   197  	// Tests that plain values can be properly returned and deserialized
   198  	{
   199  		`Getter`,
   200  		`
   201  			contract Getter {
   202  				function getter() constant returns (string, int, bytes32) {
   203  					return ("Hi", 1, sha3(""));
   204  				}
   205  			}
   206  		`,
   207  		`606060405260dc8060106000396000f3606060405260e060020a6000350463993a04b78114601a575b005b600060605260c0604052600260809081527f486900000000000000000000000000000000000000000000000000000000000060a05260017fc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a47060e0829052610100819052606060c0908152600261012081905281906101409060a09080838184600060046012f1505081517fffff000000000000000000000000000000000000000000000000000000000000169091525050604051610160819003945092505050f3`,
   208  		`[{"constant":true,"inputs":[],"name":"getter","outputs":[{"name":"","type":"string"},{"name":"","type":"int256"},{"name":"","type":"bytes32"}],"type":"function"}]`,
   209  		`
   210  			// Generate a new random account and a funded simulator
   211  			key, _ := crypto.GenerateKey()
   212  			auth := bind.NewKeyedTransactor(key)
   213  			sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}})
   214  
   215  			// Deploy a tuple tester contract and execute a structured call on it
   216  			_, _, getter, err := DeployGetter(auth, sim)
   217  			if err != nil {
   218  				t.Fatalf("Failed to deploy getter contract: %v", err)
   219  			}
   220  			sim.Commit()
   221  
   222  			if str, num, _, err := getter.Getter(nil); err != nil {
   223  				t.Fatalf("Failed to call anonymous field retriever: %v", err)
   224  			} else if str != "Hi" || num.Cmp(big.NewInt(1)) != 0 {
   225  				t.Fatalf("Retrieved value mismatch: have %v/%v, want %v/%v", str, num, "Hi", 1)
   226  			}
   227  		`,
   228  	},
   229  	// Tests that tuples can be properly returned and deserialized
   230  	{
   231  		`Tupler`,
   232  		`
   233  			contract Tupler {
   234  				function tuple() constant returns (string a, int b, bytes32 c) {
   235  					return ("Hi", 1, sha3(""));
   236  				}
   237  			}
   238  		`,
   239  		`606060405260dc8060106000396000f3606060405260e060020a60003504633175aae28114601a575b005b600060605260c0604052600260809081527f486900000000000000000000000000000000000000000000000000000000000060a05260017fc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a47060e0829052610100819052606060c0908152600261012081905281906101409060a09080838184600060046012f1505081517fffff000000000000000000000000000000000000000000000000000000000000169091525050604051610160819003945092505050f3`,
   240  		`[{"constant":true,"inputs":[],"name":"tuple","outputs":[{"name":"a","type":"string"},{"name":"b","type":"int256"},{"name":"c","type":"bytes32"}],"type":"function"}]`,
   241  		`
   242  			// Generate a new random account and a funded simulator
   243  			key, _ := crypto.GenerateKey()
   244  			auth := bind.NewKeyedTransactor(key)
   245  			sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}})
   246  
   247  			// Deploy a tuple tester contract and execute a structured call on it
   248  			_, _, tupler, err := DeployTupler(auth, sim)
   249  			if err != nil {
   250  				t.Fatalf("Failed to deploy tupler contract: %v", err)
   251  			}
   252  			sim.Commit()
   253  
   254  			if res, err := tupler.Tuple(nil); err != nil {
   255  				t.Fatalf("Failed to call structure retriever: %v", err)
   256  			} else if res.A != "Hi" || res.B.Cmp(big.NewInt(1)) != 0 {
   257  				t.Fatalf("Retrieved value mismatch: have %v/%v, want %v/%v", res.A, res.B, "Hi", 1)
   258  			}
   259  		`,
   260  	},
   261  	// Tests that arrays/slices can be properly returned and deserialized.
   262  	// Only addresses are tested, remainder just compiled to keep the test small.
   263  	{
   264  		`Slicer`,
   265  		`
   266  			contract Slicer {
   267  				function echoAddresses(address[] input) constant returns (address[] output) {
   268  					return input;
   269  				}
   270  				function echoInts(int[] input) constant returns (int[] output) {
   271  					return input;
   272  				}
   273  				function echoFancyInts(uint24[23] input) constant returns (uint24[23] output) {
   274  					return input;
   275  				}
   276  				function echoBools(bool[] input) constant returns (bool[] output) {
   277  					return input;
   278  				}
   279  			}
   280  		`,
   281  		`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`,
   282  		`[{"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"}]`,
   283  		`
   284  			// Generate a new random account and a funded simulator
   285  			key, _ := crypto.GenerateKey()
   286  			auth := bind.NewKeyedTransactor(key)
   287  			sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}})
   288  
   289  			// Deploy a slice tester contract and execute a n array call on it
   290  			_, _, slicer, err := DeploySlicer(auth, sim)
   291  			if err != nil {
   292  					t.Fatalf("Failed to deploy slicer contract: %v", err)
   293  			}
   294  			sim.Commit()
   295  
   296  			if out, err := slicer.EchoAddresses(nil, []common.Address{auth.From, common.Address{}}); err != nil {
   297  					t.Fatalf("Failed to call slice echoer: %v", err)
   298  			} else if !reflect.DeepEqual(out, []common.Address{auth.From, common.Address{}}) {
   299  					t.Fatalf("Slice return mismatch: have %v, want %v", out, []common.Address{auth.From, common.Address{}})
   300  			}
   301  		`,
   302  	},
   303  	// Tests that anonymous default methods can be correctly invoked
   304  	{
   305  		`Defaulter`,
   306  		`
   307  			contract Defaulter {
   308  				address public caller;
   309  
   310  				function() {
   311  					caller = msg.sender;
   312  				}
   313  			}
   314  		`,
   315  		`6060604052606a8060106000396000f360606040523615601d5760e060020a6000350463fc9c8d3981146040575b605e6000805473ffffffffffffffffffffffffffffffffffffffff191633179055565b606060005473ffffffffffffffffffffffffffffffffffffffff1681565b005b6060908152602090f3`,
   316  		`[{"constant":true,"inputs":[],"name":"caller","outputs":[{"name":"","type":"address"}],"type":"function"}]`,
   317  		`
   318  			// Generate a new random account and a funded simulator
   319  			key, _ := crypto.GenerateKey()
   320  			auth := bind.NewKeyedTransactor(key)
   321  			sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}})
   322  
   323  			// Deploy a default method invoker contract and execute its default method
   324  			_, _, defaulter, err := DeployDefaulter(auth, sim)
   325  			if err != nil {
   326  				t.Fatalf("Failed to deploy defaulter contract: %v", err)
   327  			}
   328  			if _, err := (&DefaulterRaw{defaulter}).Transfer(auth); err != nil {
   329  				t.Fatalf("Failed to invoke default method: %v", err)
   330  			}
   331  			sim.Commit()
   332  
   333  			if caller, err := defaulter.Caller(nil); err != nil {
   334  				t.Fatalf("Failed to call address retriever: %v", err)
   335  			} else if (caller != auth.From) {
   336  				t.Fatalf("Address mismatch: have %v, want %v", caller, auth.From)
   337  			}
   338  		`,
   339  	},
   340  	// Tests that non-existent contracts are reported as such (though only simulator test)
   341  	{
   342  		`NonExistent`,
   343  		`
   344  			contract NonExistent {
   345  				function String() constant returns(string) {
   346  					return "I don't exist";
   347  				}
   348  			}
   349  		`,
   350  		`6060604052609f8060106000396000f3606060405260e060020a6000350463f97a60058114601a575b005b600060605260c0604052600d60809081527f4920646f6e27742065786973740000000000000000000000000000000000000060a052602060c0908152600d60e081905281906101009060a09080838184600060046012f15050815172ffffffffffffffffffffffffffffffffffffff1916909152505060405161012081900392509050f3`,
   351  		`[{"constant":true,"inputs":[],"name":"String","outputs":[{"name":"","type":"string"}],"type":"function"}]`,
   352  		`
   353  			// Create a simulator and wrap a non-deployed contract
   354  			sim := backends.NewSimulatedBackend(nil)
   355  
   356  			nonexistent, err := NewNonExistent(common.Address{}, sim)
   357  			if err != nil {
   358  				t.Fatalf("Failed to access non-existent contract: %v", err)
   359  			}
   360  			// Ensure that contract calls fail with the appropriate error
   361  			if res, err := nonexistent.String(nil); err == nil {
   362  				t.Fatalf("Call succeeded on non-existent contract: %v", res)
   363  			} else if (err != bind.ErrNoCode) {
   364  				t.Fatalf("Error mismatch: have %v, want %v", err, bind.ErrNoCode)
   365  			}
   366  		`,
   367  	},
   368  	// Tests that gas estimation works for contracts with	weird gas mechanics too.
   369  	{
   370  		`FunkyGasPattern`,
   371  		`
   372  			contract FunkyGasPattern {
   373  				string public field;
   374  
   375  				function SetField(string value) {
   376  					// This check will screw gas estimation! Good, good!
   377  					if (msg.gas < 100000) {
   378  						throw;
   379  					}
   380  					field = value;
   381  				}
   382  			}
   383  		`,
   384  		`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`,
   385  		`[{"constant":false,"inputs":[{"name":"value","type":"string"}],"name":"SetField","outputs":[],"type":"function"},{"constant":true,"inputs":[],"name":"field","outputs":[{"name":"","type":"string"}],"type":"function"}]`,
   386  		`
   387  			// Generate a new random account and a funded simulator
   388  			key, _ := crypto.GenerateKey()
   389  			auth := bind.NewKeyedTransactor(key)
   390  			sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}})
   391  
   392  			// Deploy a funky gas pattern contract
   393  			_, _, limiter, err := DeployFunkyGasPattern(auth, sim)
   394  			if err != nil {
   395  				t.Fatalf("Failed to deploy funky contract: %v", err)
   396  			}
   397  			sim.Commit()
   398  
   399  			// Set the field with automatic estimation and check that it succeeds
   400  			auth.GasLimit = nil
   401  			if _, err := limiter.SetField(auth, "automatic"); err != nil {
   402  				t.Fatalf("Failed to call automatically gased transaction: %v", err)
   403  			}
   404  			sim.Commit()
   405  
   406  			if field, _ := limiter.Field(nil); field != "automatic" {
   407  				t.Fatalf("Field mismatch: have %v, want %v", field, "automatic")
   408  			}
   409  		`,
   410  	},
   411  	// Test that constant functions can be called from an (optional) specified address
   412  	{
   413  		`CallFrom`,
   414  		`
   415  			contract CallFrom {
   416  				function callFrom() constant returns(address) {
   417  					return msg.sender;
   418  				}
   419  			}
   420  		`, `6060604052346000575b6086806100176000396000f300606060405263ffffffff60e060020a60003504166349f8e98281146022575b6000565b34600057602c6055565b6040805173ffffffffffffffffffffffffffffffffffffffff9092168252519081900360200190f35b335b905600a165627a7a72305820aef6b7685c0fa24ba6027e4870404a57df701473fe4107741805c19f5138417c0029`,
   421  		`[{"constant":true,"inputs":[],"name":"callFrom","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"}]`,
   422  		`
   423  			// Generate a new random account and a funded simulator
   424  			key, _ := crypto.GenerateKey()
   425  			auth := bind.NewKeyedTransactor(key)
   426  			sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}})
   427  
   428  			// Deploy a sender tester contract and execute a structured call on it
   429  			_, _, callfrom, err := DeployCallFrom(auth, sim)
   430  			if err != nil {
   431  				t.Fatalf("Failed to deploy sender contract: %v", err)
   432  			}
   433  			sim.Commit()
   434  
   435  			if res, err := callfrom.CallFrom(nil); err != nil {
   436  				t.Errorf("Failed to call constant function: %v", err)
   437  			} else if res != (common.Address{}) {
   438  				t.Errorf("Invalid address returned, want: %x, got: %x", (common.Address{}), res)
   439  			}
   440  
   441  			for _, addr := range []common.Address{common.Address{}, common.Address{1}, common.Address{2}} {
   442  				if res, err := callfrom.CallFrom(&bind.CallOpts{From: addr}); err != nil {
   443  					t.Fatalf("Failed to call constant function: %v", err)
   444  				} else if res != addr {
   445  					t.Fatalf("Invalid address returned, want: %x, got: %x", addr, res)
   446  				}
   447  			}
   448  		`,
   449  	},
   450  }
   451  
   452  // Tests that packages generated by the binder can be successfully compiled and
   453  // the requested tester run against it.
   454  func TestBindings(t *testing.T) {
   455  	// Skip the test if no Go command can be found
   456  	gocmd := runtime.GOROOT() + "/bin/go"
   457  	if !common.FileExist(gocmd) {
   458  		t.Skip("go sdk not found for testing")
   459  	}
   460  	// Skip the test if the go-wtc sources are symlinked (https://github.com/golang/go/issues/14845)
   461  	linkTestCode := fmt.Sprintf("package linktest\nfunc CheckSymlinks(){\nfmt.Println(backends.NewSimulatedBackend(nil))\n}")
   462  	linkTestDeps, err := imports.Process(os.TempDir(), []byte(linkTestCode), nil)
   463  	if err != nil {
   464  		t.Fatalf("failed check for goimports symlink bug: %v", err)
   465  	}
   466  	if !strings.Contains(string(linkTestDeps), "go-wtc") {
   467  		t.Skip("symlinked environment doesn't support bind (https://github.com/golang/go/issues/14845)")
   468  	}
   469  	// Create a temporary workspace for the test suite
   470  	ws, err := ioutil.TempDir("", "")
   471  	if err != nil {
   472  		t.Fatalf("failed to create temporary workspace: %v", err)
   473  	}
   474  	defer os.RemoveAll(ws)
   475  
   476  	pkg := filepath.Join(ws, "bindtest")
   477  	if err = os.MkdirAll(pkg, 0700); err != nil {
   478  		t.Fatalf("failed to create package: %v", err)
   479  	}
   480  	// Generate the test suite for all the contracts
   481  	for i, tt := range bindTests {
   482  		// Generate the binding and create a Go source file in the workspace
   483  		bind, err := Bind([]string{tt.name}, []string{tt.abi}, []string{tt.bytecode}, "bindtest", LangGo)
   484  		if err != nil {
   485  			t.Fatalf("test %d: failed to generate binding: %v", i, err)
   486  		}
   487  		if err = ioutil.WriteFile(filepath.Join(pkg, strings.ToLower(tt.name)+".go"), []byte(bind), 0600); err != nil {
   488  			t.Fatalf("test %d: failed to write binding: %v", i, err)
   489  		}
   490  		// Generate the test file with the injected test code
   491  		code := fmt.Sprintf("package bindtest\nimport \"testing\"\nfunc Test%s(t *testing.T){\n%s\n}", tt.name, tt.tester)
   492  		blob, err := imports.Process("", []byte(code), nil)
   493  		if err != nil {
   494  			t.Fatalf("test %d: failed to generate tests: %v", i, err)
   495  		}
   496  		if err := ioutil.WriteFile(filepath.Join(pkg, strings.ToLower(tt.name)+"_test.go"), blob, 0600); err != nil {
   497  			t.Fatalf("test %d: failed to write tests: %v", i, err)
   498  		}
   499  	}
   500  	// Test the entire package and report any failures
   501  	cmd := exec.Command(gocmd, "test", "-v")
   502  	cmd.Dir = pkg
   503  	if out, err := cmd.CombinedOutput(); err != nil {
   504  		t.Fatalf("failed to run binding test: %v\n%s", err, out)
   505  	}
   506  }