path: root/tests/vm/gh_test.go

package vm

import (
    "bytes"
    "testing"

    "github.com/ethereum/go-ethereum/ethstate"
    "github.com/ethereum/go-ethereum/ethutil"
    "github.com/ethereum/go-ethereum/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.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 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(p string, t *testing.T) {
    tests := make(map[string]VmTest)
    helper.CreateFileTests(t, p, &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)
        // 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)
        }

        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.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))
                }
            }
        }
    }
}

// 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) {
    //helper.Logger.SetLogLevel(5)
    const fn = "../files/vmtests/vmArithmeticTest.json"
    RunVmTest(fn, t)
}

func TestVMSystemOperation(t *testing.T) {
    //helper.Logger.SetLogLevel(5)
    const fn = "../files/vmtests/vmSystemOperationsTest.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)
}