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99 lines
2.6 KiB
99 lines
2.6 KiB
package vm
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import (
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"crypto/rand"
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"encoding/hex"
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"fmt"
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"strings"
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"testing"
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"time"
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. "github.com/tendermint/tendermint/common"
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. "github.com/tendermint/tendermint/vm"
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)
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func newAppState() *FakeAppState {
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return &FakeAppState{
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accounts: make(map[string]*Account),
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storage: make(map[string]Word256),
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logs: nil,
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}
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}
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func newParams() Params {
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return Params{
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BlockHeight: 0,
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BlockHash: Zero256,
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BlockTime: 0,
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GasLimit: 0,
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}
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}
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func makeBytes(n int) []byte {
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b := make([]byte, n)
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rand.Read(b)
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return b
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}
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func TestVM(t *testing.T) {
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ourVm := NewVM(newAppState(), newParams(), Zero256)
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// Create accounts
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account1 := &Account{
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Address: Uint64ToWord256(100),
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}
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account2 := &Account{
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Address: Uint64ToWord256(101),
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}
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var gas uint64 = 1000
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N := []byte{0xff, 0xff}
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// Loop N times
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code := []byte{0x60, 0x00, 0x60, 0x20, 0x52, 0x5B, byte(0x60 + len(N) - 1)}
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for i := 0; i < len(N); i++ {
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code = append(code, N[i])
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}
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code = append(code, []byte{0x60, 0x20, 0x51, 0x12, 0x15, 0x60, byte(0x1b + len(N)), 0x57, 0x60, 0x01, 0x60, 0x20, 0x51, 0x01, 0x60, 0x20, 0x52, 0x60, 0x05, 0x56, 0x5B}...)
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start := time.Now()
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output, err := ourVm.Call(account1, account2, code, []byte{}, 0, &gas)
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fmt.Printf("Output: %v Error: %v\n", output, err)
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fmt.Println("Call took:", time.Since(start))
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}
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func TestSubcurrency(t *testing.T) {
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st := newAppState()
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// Create accounts
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account1 := &Account{
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Address: RightPadWord256(makeBytes(20)),
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}
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account2 := &Account{
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Address: RightPadWord256(makeBytes(20)),
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}
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st.accounts[account1.Address.String()] = account1
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st.accounts[account2.Address.String()] = account2
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ourVm := NewVM(st, newParams(), Zero256)
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var gas uint64 = 1000
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code_parts := []string{"620f42403355",
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"7c0100000000000000000000000000000000000000000000000000000000",
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"600035046315cf268481141561004657",
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"6004356040526040515460605260206060f35b63693200ce81141561008757",
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"60043560805260243560a052335460c0523360e05260a05160c05112151561008657",
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"60a05160c0510360e0515560a0516080515401608051555b5b505b6000f3"}
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code, _ := hex.DecodeString(strings.Join(code_parts, ""))
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fmt.Printf("Code: %x\n", code)
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data, _ := hex.DecodeString("693200CE0000000000000000000000004B4363CDE27C2EB05E66357DB05BC5C88F850C1A0000000000000000000000000000000000000000000000000000000000000005")
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output, err := ourVm.Call(account1, account2, code, data, 0, &gas)
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fmt.Printf("Output: %v Error: %v\n", output, err)
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}
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/*
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// infinite loop
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code := []byte{0x5B, 0x60, 0x00, 0x56}
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// mstore
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code := []byte{0x60, 0x00, 0x60, 0x20}
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// mstore, mload
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code := []byte{0x60, 0x01, 0x60, 0x20, 0x52, 0x60, 0x20, 0x51}
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*/
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