package ethvm import ( "bytes" "testing" "github.com/ethereum/eth-go/ethstate" "github.com/ethereum/eth-go/ethutil" "github.com/ethereum/eth-go/tests/helper" ) type Account struct { Balance string Code string Nonce string Storage map[string]string } func StateObjectFromAccount(addr string, account Account) *ethstate.StateObject { obj := ethstate.NewStateObject(ethutil.Hex2Bytes(addr)) obj.Balance = 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 VmTest struct { Callcreates interface{} Env map[string]string Exec map[string]string Gas string Out string Post map[string]Account Pre map[string]Account } func RunVmTest(url string, t *testing.T) { tests := make(map[string]VmTest) helper.CreateTests(t, url, &tests) for name, test := range tests { state := ethstate.New(helper.NewTrie()) for addr, account := range test.Pre { obj := StateObjectFromAccount(addr, account) state.SetStateObject(obj) } ret, gas, err := helper.RunVm(state, test.Env, test.Exec) if err != nil { t.Errorf("%s's execution failed. %v\n", name, 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) } 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 := state.GetStateObject(helper.FromHex(addr)) for addr, value := range account.Storage { v := obj.GetStorage(ethutil.BigD(helper.FromHex(addr))).Bytes() vexp := helper.FromHex(value) if bytes.Compare(v, vexp) != 0 { t.Errorf("%s's : %s storage failed. Expected %x, get %x\n", name, addr, vexp, v) } } } } } // 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 TestVMSha3(t *testing.T) { helper.Logger.SetLogLevel(0) defer helper.Logger.SetLogLevel(4) const url = "https://raw.githubusercontent.com/ethereum/tests/master/vmtests/vmSha3Test.json" RunVmTest(url, t) } func TestVMArithmetic(t *testing.T) { const url = "https://raw.githubusercontent.com/ethereum/tests/master/vmtests/vmArithmeticTest.json" RunVmTest(url, t) }