package vm import ( "bytes" "math/big" "strconv" "testing" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/ethutil" "github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/state" "github.com/ethereum/go-ethereum/tests/helper" ) type Account struct { Balance string Code string Nonce string Storage map[string]string } type Log struct { AddressF string `json:"address"` DataF string `json:"data"` TopicsF []string `json:"topics"` BloomF string `json:"bloom"` } func (self Log) Address() []byte { return ethutil.Hex2Bytes(self.AddressF) } func (self Log) Data() []byte { return ethutil.Hex2Bytes(self.DataF) } func (self Log) RlpData() interface{} { return nil } func (self Log) Topics() [][]byte { t := make([][]byte, len(self.TopicsF)) for i, topic := range self.TopicsF { t[i] = ethutil.Hex2Bytes(topic) } return t } func StateObjectFromAccount(addr string, account Account) *state.StateObject { obj := state.NewStateObject(ethutil.Hex2Bytes(addr)) obj.SetBalance(ethutil.Big(account.Balance)) if ethutil.IsHex(account.Code) { account.Code = account.Code[2:] } obj.Code = ethutil.Hex2Bytes(account.Code) obj.Nonce = ethutil.Big(account.Nonce).Uint64() return obj } type Env struct { CurrentCoinbase string CurrentDifficulty string CurrentGasLimit string CurrentNumber string CurrentTimestamp interface{} PreviousHash string } type VmTest struct { Callcreates interface{} //Env map[string]string Env Env Exec map[string]string Transaction map[string]string Logs []Log Gas string Out string Post map[string]Account Pre map[string]Account } func RunVmTest(p string, t *testing.T) { tests := make(map[string]VmTest) helper.CreateFileTests(t, p, &tests) for name, test := range tests { statedb := state.New(helper.NewTrie()) for addr, account := range test.Pre { obj := StateObjectFromAccount(addr, account) statedb.SetStateObject(obj) for a, v := range account.Storage { obj.SetState(helper.FromHex(a), ethutil.NewValue(helper.FromHex(v))) } } // XXX Yeah, yeah... env := make(map[string]string) env["currentCoinbase"] = test.Env.CurrentCoinbase env["currentDifficulty"] = test.Env.CurrentDifficulty env["currentGasLimit"] = test.Env.CurrentGasLimit env["currentNumber"] = test.Env.CurrentNumber env["previousHash"] = test.Env.PreviousHash if n, ok := test.Env.CurrentTimestamp.(float64); ok { env["currentTimestamp"] = strconv.Itoa(int(n)) } else { env["currentTimestamp"] = test.Env.CurrentTimestamp.(string) } var ( ret []byte gas *big.Int err error logs state.Logs ) isVmTest := len(test.Exec) > 0 if isVmTest { ret, logs, gas, err = helper.RunVm(statedb, env, test.Exec) } else { ret, logs, gas, err = helper.RunState(statedb, env, test.Transaction) } // When an error is returned it doesn't always mean the tests fails. // Have to come up with some conditional failing mechanism. if err != nil { helper.Log.Infoln(err) } rexp := helper.FromHex(test.Out) if bytes.Compare(rexp, ret) != 0 { t.Errorf("%s's return failed. Expected %x, got %x\n", name, rexp, ret) } if isVmTest { if len(test.Gas) == 0 && err == nil { t.Errorf("%s's gas unspecified, indicating an error. VM returned (incorrectly) successfull") } else { gexp := ethutil.Big(test.Gas) if gexp.Cmp(gas) != 0 { t.Errorf("%s's gas failed. Expected %v, got %v\n", name, gexp, gas) } } } for addr, account := range test.Post { obj := statedb.GetStateObject(helper.FromHex(addr)) if obj == nil { continue } if len(test.Exec) == 0 { if obj.Balance().Cmp(ethutil.Big(account.Balance)) != 0 { t.Errorf("%s's : (%x) balance failed. Expected %v, got %v => %v\n", name, obj.Address()[:4], account.Balance, obj.Balance(), new(big.Int).Sub(ethutil.Big(account.Balance), obj.Balance())) } } for addr, value := range account.Storage { v := obj.GetState(helper.FromHex(addr)).Bytes() vexp := helper.FromHex(value) if bytes.Compare(v, vexp) != 0 { t.Errorf("%s's : (%x: %s) storage failed. Expected %x, got %x (%v %v)\n", name, obj.Address()[0:4], addr, vexp, v, ethutil.BigD(vexp), ethutil.BigD(v)) } } } if len(test.Logs) > 0 { // Logs within the test itself aren't correct, missing empty fields (32 0s) for i, log := range test.Logs { genBloom := ethutil.LeftPadBytes(types.LogsBloom(state.Logs{logs[i]}).Bytes(), 64) if !bytes.Equal(genBloom, ethutil.Hex2Bytes(log.BloomF)) { t.Errorf("bloom mismatch") } } } } logger.Flush() } // I've created a new function for each tests so it's easier to identify where the problem lies if any of them fail. func TestVMArithmetic(t *testing.T) { const fn = "../files/vmtests/vmArithmeticTest.json" RunVmTest(fn, t) } func TestBitwiseLogicOperation(t *testing.T) { const fn = "../files/vmtests/vmBitwiseLogicOperationTest.json" RunVmTest(fn, t) } func TestBlockInfo(t *testing.T) { const fn = "../files/vmtests/vmBlockInfoTest.json" RunVmTest(fn, t) } func TestEnvironmentalInfo(t *testing.T) { const fn = "../files/vmtests/vmEnvironmentalInfoTest.json" RunVmTest(fn, t) } func TestFlowOperation(t *testing.T) { const fn = "../files/vmtests/vmIOandFlowOperationsTest.json" RunVmTest(fn, t) } func TestPushDupSwap(t *testing.T) { const fn = "../files/vmtests/vmPushDupSwapTest.json" RunVmTest(fn, t) } func TestVMSha3(t *testing.T) { const fn = "../files/vmtests/vmSha3Test.json" RunVmTest(fn, t) } func TestVm(t *testing.T) { const fn = "../files/vmtests/vmtests.json" RunVmTest(fn, t) } func TestVmLog(t *testing.T) { const fn = "../files/vmtests/vmLogTest.json" RunVmTest(fn, t) } func TestStateSystemOperations(t *testing.T) { const fn = "../files/StateTests/stSystemOperationsTest.json" RunVmTest(fn, t) } func TestStatePreCompiledContracts(t *testing.T) { const fn = "../files/StateTests/stPreCompiledContracts.json" RunVmTest(fn, t) } func TestStateRecursiveCreate(t *testing.T) { const fn = "../files/StateTests/stRecursiveCreate.json" RunVmTest(fn, t) } func TestStateSpecial(t *testing.T) { const fn = "../files/StateTests/stSpecialTest.json" RunVmTest(fn, t) } func TestStateRefund(t *testing.T) { const fn = "../files/StateTests/stRefundTest.json" RunVmTest(fn, t) }