134 lines
3.5 KiB
Go
134 lines
3.5 KiB
Go
package tests
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import (
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"bytes"
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"fmt"
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"math/big"
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"strconv"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/logger/glog"
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)
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func RunVmTest(p string) error {
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skipTest := make(map[string]bool, len(vmSkipTests))
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for _, name := range vmSkipTests {
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skipTest[name] = true
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}
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tests := make(map[string]VmTest)
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err := readTestFile(p, &tests)
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if err != nil {
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return err
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}
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for name, test := range tests {
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if skipTest[name] {
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glog.Infoln("Skipping VM test", name)
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return nil
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}
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db, _ := ethdb.NewMemDatabase()
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statedb := state.New(common.Hash{}, db)
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for addr, account := range test.Pre {
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obj := StateObjectFromAccount(db, addr, account)
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statedb.SetStateObject(obj)
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for a, v := range account.Storage {
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obj.SetState(common.HexToHash(a), common.HexToHash(v))
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}
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}
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// XXX Yeah, yeah...
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env := make(map[string]string)
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env["currentCoinbase"] = test.Env.CurrentCoinbase
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env["currentDifficulty"] = test.Env.CurrentDifficulty
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env["currentGasLimit"] = test.Env.CurrentGasLimit
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env["currentNumber"] = test.Env.CurrentNumber
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env["previousHash"] = test.Env.PreviousHash
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if n, ok := test.Env.CurrentTimestamp.(float64); ok {
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env["currentTimestamp"] = strconv.Itoa(int(n))
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} else {
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env["currentTimestamp"] = test.Env.CurrentTimestamp.(string)
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}
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var (
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ret []byte
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gas *big.Int
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err error
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logs state.Logs
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)
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ret, logs, gas, err = RunVm(statedb, env, test.Exec)
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// Compare expectedand actual return
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rexp := common.FromHex(test.Out)
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if bytes.Compare(rexp, ret) != 0 {
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return fmt.Errorf("%s's return failed. Expected %x, got %x\n", name, rexp, ret)
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}
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// Check gas usage
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if len(test.Gas) == 0 && err == nil {
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return fmt.Errorf("%s's gas unspecified, indicating an error. VM returned (incorrectly) successfull", name)
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} else {
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gexp := common.Big(test.Gas)
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if gexp.Cmp(gas) != 0 {
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return fmt.Errorf("%s's gas failed. Expected %v, got %v\n", name, gexp, gas)
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}
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}
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// check post state
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for addr, account := range test.Post {
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obj := statedb.GetStateObject(common.HexToAddress(addr))
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if obj == nil {
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continue
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}
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for addr, value := range account.Storage {
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v := obj.GetState(common.HexToHash(addr))
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vexp := common.HexToHash(value)
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if v != vexp {
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return t.Errorf("%s's : (%x: %s) storage failed. Expected %x, got %x (%v %v)\n", name, obj.Address().Bytes()[0:4], addr, vexp, v, vexp.Big(), v.Big())
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}
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}
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}
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// check logs
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if len(test.Logs) > 0 {
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lerr := checkLogs(test.Logs, logs)
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if lerr != nil {
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return fmt.Errorf("'%s' ", name, lerr.Error())
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}
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}
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glog.Infoln("VM test passed: ", name)
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//fmt.Println(string(statedb.Dump()))
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}
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return nil
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}
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func RunVm(state *state.StateDB, env, exec map[string]string) ([]byte, state.Logs, *big.Int, error) {
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var (
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to = common.HexToAddress(exec["address"])
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from = common.HexToAddress(exec["caller"])
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data = common.FromHex(exec["data"])
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gas = common.Big(exec["gas"])
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price = common.Big(exec["gasPrice"])
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value = common.Big(exec["value"])
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)
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// Reset the pre-compiled contracts for VM tests.
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vm.Precompiled = make(map[string]*vm.PrecompiledAccount)
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caller := state.GetOrNewStateObject(from)
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vmenv := NewEnvFromMap(state, env, exec)
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vmenv.vmTest = true
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vmenv.skipTransfer = true
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vmenv.initial = true
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ret, err := vmenv.Call(caller, to, data, gas, price, value)
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return ret, vmenv.state.Logs(), vmenv.Gas, err
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}
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