1 files changed, 181 insertions, 0 deletions
diff --git a/tests/state_test_util.go b/tests/state_test_util.go
new file mode 100644
index 000000000..e9abad788
--- /dev/null
+++ b/tests/state_test_util.go
@@ -0,0 +1,181 @@
+package tests
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"math/big"
+	"strconv"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/vm"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/logger/glog"
+)
+
+func RunStateTestWithReader(r io.Reader, skipTests []string) error {
+	tests := make(map[string]VmTest)
+	if err := readJson(r, &tests); err != nil {
+		return err
+	}
+
+	if err := runStateTests(tests, skipTests); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func RunStateTest(p string, skipTests []string) error {
+	tests := make(map[string]VmTest)
+	if err := readJsonFile(p, &tests); err != nil {
+		return err
+	}
+
+	if err := runStateTests(tests, skipTests); err != nil {
+		return err
+	}
+
+	return nil
+
+}
+
+func runStateTests(tests map[string]VmTest, skipTests []string) error {
+	skipTest := make(map[string]bool, len(skipTests))
+	for _, name := range skipTests {
+		skipTest[name] = true
+	}
+
+	for name, test := range tests {
+		if skipTest[name] {
+			glog.Infoln("Skipping state test", name)
+			return nil
+		}
+
+		if err := runStateTest(test); err != nil {
+			return fmt.Errorf("%s: %s\n", name, err.Error())
+		}
+
+		glog.Infoln("State test passed: ", name)
+		//fmt.Println(string(statedb.Dump()))
+	}
+	return nil
+
+}
+
+func runStateTest(test VmTest) error {
+	db, _ := ethdb.NewMemDatabase()
+	statedb := state.New(common.Hash{}, db)
+	for addr, account := range test.Pre {
+		obj := StateObjectFromAccount(db, addr, account)
+		statedb.SetStateObject(obj)
+		for a, v := range account.Storage {
+			obj.SetState(common.HexToHash(a), common.HexToHash(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
+	)
+
+	ret, logs, _, _ = RunState(statedb, env, test.Transaction)
+
+	// // Compare expected  and actual return
+	rexp := common.FromHex(test.Out)
+	if bytes.Compare(rexp, ret) != 0 {
+		return fmt.Errorf("return failed. Expected %x, got %x\n", rexp, ret)
+	}
+
+	// check post state
+	for addr, account := range test.Post {
+		obj := statedb.GetStateObject(common.HexToAddress(addr))
+		if obj == nil {
+			continue
+		}
+
+		if obj.Balance().Cmp(common.Big(account.Balance)) != 0 {
+			return fmt.Errorf("(%x) balance failed. Expected %v, got %v => %v\n", obj.Address().Bytes()[:4], account.Balance, obj.Balance(), new(big.Int).Sub(common.Big(account.Balance), obj.Balance()))
+		}
+
+		if obj.Nonce() != common.String2Big(account.Nonce).Uint64() {
+			return fmt.Errorf("(%x) nonce failed. Expected %v, got %v\n", obj.Address().Bytes()[:4], account.Nonce, obj.Nonce())
+		}
+
+		for addr, value := range account.Storage {
+			v := obj.GetState(common.HexToHash(addr))
+			vexp := common.HexToHash(value)
+
+			if v != vexp {
+				return fmt.Errorf("(%x: %s) storage failed. Expected %x, got %x (%v %v)\n", obj.Address().Bytes()[0:4], addr, vexp, v, vexp.Big(), v.Big())
+			}
+		}
+	}
+
+	statedb.Sync()
+	if common.HexToHash(test.PostStateRoot) != statedb.Root() {
+		return fmt.Errorf("Post state root error. Expected %s, got %x", test.PostStateRoot, statedb.Root())
+	}
+
+	// check logs
+	if len(test.Logs) > 0 {
+		if err := checkLogs(test.Logs, logs); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func RunState(statedb *state.StateDB, env, tx map[string]string) ([]byte, state.Logs, *big.Int, error) {
+	var (
+		keyPair, _ = crypto.NewKeyPairFromSec([]byte(common.Hex2Bytes(tx["secretKey"])))
+		data       = common.FromHex(tx["data"])
+		gas        = common.Big(tx["gasLimit"])
+		price      = common.Big(tx["gasPrice"])
+		value      = common.Big(tx["value"])
+		nonce      = common.Big(tx["nonce"]).Uint64()
+		caddr      = common.HexToAddress(env["currentCoinbase"])
+	)
+
+	var to *common.Address
+	if len(tx["to"]) > 2 {
+		t := common.HexToAddress(tx["to"])
+		to = &t
+	}
+	// Set pre compiled contracts
+	vm.Precompiled = vm.PrecompiledContracts()
+
+	snapshot := statedb.Copy()
+	coinbase := statedb.GetOrNewStateObject(caddr)
+	coinbase.SetGasPool(common.Big(env["currentGasLimit"]))
+
+	message := NewMessage(common.BytesToAddress(keyPair.Address()), to, data, value, gas, price, nonce)
+	vmenv := NewEnvFromMap(statedb, env, tx)
+	vmenv.origin = common.BytesToAddress(keyPair.Address())
+	ret, _, err := core.ApplyMessage(vmenv, message, coinbase)
+	if core.IsNonceErr(err) || core.IsInvalidTxErr(err) || state.IsGasLimitErr(err) {
+		statedb.Set(snapshot)
+	}
+	statedb.Update()
+
+	return ret, vmenv.state.Logs(), vmenv.Gas, err
+}