99 lines
3.3 KiB
Go
99 lines
3.3 KiB
Go
package tracing
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import (
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"errors"
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"math/big"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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)
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type testTracer struct {
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bal *big.Int
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nonce uint64
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code []byte
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storage map[common.Hash]common.Hash
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}
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func (t *testTracer) OnBalanceChange(addr common.Address, prev *big.Int, new *big.Int, reason BalanceChangeReason) {
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t.bal = new
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}
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func (t *testTracer) OnNonceChange(addr common.Address, prev uint64, new uint64) {
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t.nonce = new
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}
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func (t *testTracer) OnCodeChange(addr common.Address, prevCodeHash common.Hash, prevCode []byte, codeHash common.Hash, code []byte) {
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t.code = code
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}
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func (t *testTracer) OnStorageChange(addr common.Address, slot common.Hash, prev common.Hash, new common.Hash) {
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if t.storage == nil {
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t.storage = make(map[common.Hash]common.Hash)
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}
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if new == (common.Hash{}) {
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delete(t.storage, slot)
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} else {
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t.storage[slot] = new
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}
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}
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func TestJournalIntegration(t *testing.T) {
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tr := &testTracer{}
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wr, err := WrapWithJournal(&Hooks{OnBalanceChange: tr.OnBalanceChange, OnNonceChange: tr.OnNonceChange, OnCodeChange: tr.OnCodeChange, OnStorageChange: tr.OnStorageChange})
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if err != nil {
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t.Fatalf("failed to wrap test tracer: %v", err)
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}
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addr := common.HexToAddress("0x1234")
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wr.OnEnter(0, 0, addr, addr, nil, 1000, big.NewInt(0))
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wr.OnBalanceChange(addr, nil, big.NewInt(100), BalanceChangeUnspecified)
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wr.OnCodeChange(addr, common.Hash{}, nil, common.Hash{}, []byte{1, 2, 3})
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wr.OnStorageChange(addr, common.Hash{1}, common.Hash{}, common.Hash{2})
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wr.OnEnter(1, 0, addr, addr, nil, 1000, big.NewInt(0))
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wr.OnNonceChange(addr, 0, 1)
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wr.OnBalanceChange(addr, big.NewInt(100), big.NewInt(200), BalanceChangeUnspecified)
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wr.OnBalanceChange(addr, big.NewInt(200), big.NewInt(250), BalanceChangeUnspecified)
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wr.OnStorageChange(addr, common.Hash{1}, common.Hash{2}, common.Hash{3})
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wr.OnStorageChange(addr, common.Hash{2}, common.Hash{}, common.Hash{4})
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wr.OnExit(1, nil, 100, errors.New("revert"), true)
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wr.OnExit(0, nil, 150, nil, false)
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if tr.bal.Cmp(big.NewInt(100)) != 0 {
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t.Fatalf("unexpected balance: %v", tr.bal)
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}
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if tr.nonce != 0 {
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t.Fatalf("unexpected nonce: %v", tr.nonce)
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}
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if len(tr.code) != 3 {
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t.Fatalf("unexpected code: %v", tr.code)
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}
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if len(tr.storage) != 1 {
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t.Fatalf("unexpected storage len. want %d, have %d", 1, len(tr.storage))
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}
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if tr.storage[common.Hash{1}] != (common.Hash{2}) {
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t.Fatalf("unexpected storage. want %v, have %v", common.Hash{2}, tr.storage[common.Hash{1}])
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}
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}
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func TestJournalTopRevert(t *testing.T) {
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tr := &testTracer{}
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wr, err := WrapWithJournal(&Hooks{OnBalanceChange: tr.OnBalanceChange, OnNonceChange: tr.OnNonceChange})
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if err != nil {
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t.Fatalf("failed to wrap test tracer: %v", err)
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}
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addr := common.HexToAddress("0x1234")
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wr.OnEnter(0, 0, addr, addr, nil, 1000, big.NewInt(0))
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wr.OnBalanceChange(addr, big.NewInt(0), big.NewInt(100), BalanceChangeUnspecified)
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wr.OnEnter(1, 0, addr, addr, nil, 1000, big.NewInt(0))
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wr.OnNonceChange(addr, 0, 1)
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wr.OnBalanceChange(addr, big.NewInt(100), big.NewInt(200), BalanceChangeUnspecified)
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wr.OnBalanceChange(addr, big.NewInt(200), big.NewInt(250), BalanceChangeUnspecified)
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wr.OnExit(0, nil, 100, errors.New("revert"), true)
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wr.OnExit(0, nil, 150, errors.New("revert"), true)
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if tr.bal.Cmp(big.NewInt(0)) != 0 {
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t.Fatalf("unexpected balance: %v", tr.bal)
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}
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if tr.nonce != 0 {
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t.Fatalf("unexpected nonce: %v", tr.nonce)
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}
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}
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