path: root/ethchain/vm_test.go

package ethchain

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

func TestRun4(t *testing.T) {
    ethutil.ReadConfig(".ethtest", "/tmp/ethtest", "", "ETH")

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

    callerScript, err := ethutil.Compile(`
    this.store[this.origin()] = 10**20
    hello := "world"

    return lambda {
        big to = this.data[0]
        big from = this.origin()
        big value = this.data[1]

        if this.store[from] >= value {
            this.store[from] = this.store[from] - value
            this.store[to] = this.store[to] + value
        }
    }
    `)
    if err != nil {
        fmt.Println(err)
    }
    fmt.Println(Disassemble(callerScript))

    callerTx := NewContractCreationTx(ethutil.Big("0"), ethutil.Big("1000"), ethutil.Big("100"), callerScript)
    callerTx.Sign([]byte("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"))

    // 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, callerScript, state, gas, gasPrice)

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