path: root/ethchain/vm_test.go

package ethchain

import (
    _ "bytes"
    "fmt"
    "github.com/ethereum/eth-go/ethdb"
    "github.com/ethereum/eth-go/ethutil"
    "github.com/obscuren/mutan"
    "math/big"
    "strings"
    "testing"
)

func TestRun4(t *testing.T) {
    ethutil.ReadConfig("", ethutil.LogStd)

    db, _ := ethdb.NewMemDatabase()
    state := NewState(ethutil.NewTrie(db, ""))

    script, err := mutan.Compile(strings.NewReader(`
        int32 a = 10
        int32 b = 20
        if a > b {
            int32 c = this.caller()
        }
        Exit()
    `), false)
    tx := NewContractCreationTx(ethutil.Big("0"), ethutil.Big("1000"), ethutil.Big("100"), script, nil)
    addr := tx.Hash()[12:]
    contract := MakeContract(tx, state)
    state.UpdateStateObject(contract)
    fmt.Printf("%x\n", addr)

    callerScript, err := mutan.Compile(strings.NewReader(`
        // Check if there's any cash in the initial store
        if this.store[1000] == 0 {
            this.store[1000] = 10^20
        }


        this.store[1001] = this.value() * 20
        this.store[this.origin()] = this.store[this.origin()] + 1000

        if this.store[1001] > 20 {
            this.store[1001] = 10^50
        }

        int8 ret = 0
        int8 arg = 10
        call(0xe6a12555fad1fb6eaaaed69001a87313d1fd7b54, 0, 100, arg, ret)

        big t
        for int8 i = 0; i < 10; i++ {
            t = i
        }

        if 10 > 20 {
            int8 shouldnt = 2
        } else {
            int8 should = 1
        }
    `), false)
    if err != nil {
        fmt.Println(err)
    }

    callerTx := NewContractCreationTx(ethutil.Big("0"), ethutil.Big("1000"), ethutil.Big("100"), callerScript, nil)

    // Contract addr as test address
    gas := big.NewInt(1000)
    gasPrice := big.NewInt(10)
    account := NewAccount(ContractAddr, big.NewInt(10000000))
    fmt.Println("account.Amount =", account.Amount)
    c := MakeContract(callerTx, state)
    e := account.ConvertGas(gas, gasPrice)
    if e != nil {
        fmt.Println(err)
    }
    fmt.Println("account.Amount =", account.Amount)
    callerClosure := NewClosure(account, c, c.script, state, gas, gasPrice)

    vm := NewVm(state, nil, RuntimeVars{
        Origin:      account.Address(),
        BlockNumber: 1,
        PrevHash:    ethutil.FromHex("5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6"),
        Coinbase:    ethutil.FromHex("2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"),
        Time:        1,
        Diff:        big.NewInt(256),
    })
    _, e = callerClosure.Call(vm, nil, nil)
    if e != nil {
        fmt.Println("error", e)
    }
    fmt.Println("account.Amount =", account.Amount)
}