133 lines
3.8 KiB
Go
133 lines
3.8 KiB
Go
// Copyright 2024 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Package state provides a caching layer atop the Ethereum state trie.
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package state
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import (
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/holiman/uint256"
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)
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func TestLinearJournalDirty(t *testing.T) {
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testJournalDirty(t, newLinearJournal())
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}
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func TestSparseJournalDirty(t *testing.T) {
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testJournalDirty(t, newSparseJournal())
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}
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// This test verifies some basics around journalling: the ability to
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// deliver a dirty-set.
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func testJournalDirty(t *testing.T, j journal) {
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acc := &types.StateAccount{
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Nonce: 1,
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Balance: new(uint256.Int),
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Root: common.Hash{},
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CodeHash: nil,
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}
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{
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j.nonceChange(common.Address{0x1}, acc, false, false)
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if have, want := len(j.dirtyAccounts()), 1; have != want {
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t.Errorf("wrong size of dirty accounts, have %v want %v", have, want)
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}
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}
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{
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j.storageChange(common.Address{0x2}, common.Hash{0x1}, common.Hash{0x1}, common.Hash{})
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if have, want := len(j.dirtyAccounts()), 2; have != want {
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t.Errorf("wrong size of dirty accounts, have %v want %v", have, want)
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}
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}
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{ // The previous scopes should also be accounted for
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j.snapshot()
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if have, want := len(j.dirtyAccounts()), 2; have != want {
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t.Errorf("wrong size of dirty accounts, have %v want %v", have, want)
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}
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}
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}
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func TestLinearJournalAccessList(t *testing.T) {
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testJournalAccessList(t, newLinearJournal())
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}
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func TestSparseJournalAccessList(t *testing.T) {
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testJournalAccessList(t, newSparseJournal())
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}
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func testJournalAccessList(t *testing.T, j journal) {
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var statedb = &StateDB{}
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statedb.accessList = newAccessList()
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statedb.journal = j
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{
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// If the journal performs the rollback in the wrong order, this
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// will cause a panic.
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id := j.snapshot()
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statedb.AddSlotToAccessList(common.Address{0x1}, common.Hash{0x4})
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statedb.AddSlotToAccessList(common.Address{0x3}, common.Hash{0x4})
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statedb.RevertToSnapshot(id)
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}
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{
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id := j.snapshot()
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statedb.AddAddressToAccessList(common.Address{0x2})
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statedb.AddAddressToAccessList(common.Address{0x3})
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statedb.AddAddressToAccessList(common.Address{0x4})
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statedb.RevertToSnapshot(id)
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if statedb.accessList.ContainsAddress(common.Address{0x2}) {
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t.Fatal("should be missing")
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}
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}
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}
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func TestLinearJournalRefunds(t *testing.T) {
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testJournalRefunds(t, newLinearJournal())
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}
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func TestSparseJournalRefunds(t *testing.T) {
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testJournalRefunds(t, newSparseJournal())
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}
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func testJournalRefunds(t *testing.T, j journal) {
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var statedb = &StateDB{}
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statedb.accessList = newAccessList()
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statedb.journal = j
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zero := j.snapshot()
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j.refundChange(0)
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j.refundChange(1)
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{
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id := j.snapshot()
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j.refundChange(2)
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j.refundChange(3)
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j.revertToSnapshot(id, statedb)
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if have, want := statedb.refund, uint64(2); have != want {
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t.Fatalf("have %d want %d", have, want)
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}
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}
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{
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id := j.snapshot()
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j.refundChange(2)
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j.refundChange(3)
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j.discardSnapshot(id)
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}
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j.revertToSnapshot(zero, statedb)
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if have, want := statedb.refund, uint64(0); have != want {
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t.Fatalf("have %d want %d", have, want)
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}
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}
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