mirror of
https://github.com/ethereum/go-ethereum.git
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91 lines
2.9 KiB
Go
91 lines
2.9 KiB
Go
// Copyright 2021 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
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import (
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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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"github.com/ethereum/go-ethereum/core/tracing"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/trie"
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"github.com/holiman/uint256"
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)
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func filledStateDB() *StateDB {
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state, _ := New(types.EmptyRootHash, NewDatabaseForTesting())
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addr := common.HexToAddress("0xaffeaffeaffeaffeaffeaffeaffeaffeaffeaffe")
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skey := common.HexToHash("aaa")
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sval := common.HexToHash("bbb")
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state.SetBalance(addr, uint256.NewInt(42), tracing.BalanceChangeUnspecified)
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state.SetCode(addr, []byte("hello"), tracing.CodeChangeUnspecified)
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state.SetState(addr, skey, sval)
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for i := 0; i < 100; i++ {
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sk := common.BigToHash(big.NewInt(int64(i)))
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state.SetState(addr, sk, sk)
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}
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return state
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}
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func TestSubfetcherUseAfterTerminate(t *testing.T) {
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db := filledStateDB()
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// Open a trie and create a subfetcher for it.
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id := trie.StateTrieID(db.originalRoot)
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tr, err := trie.NewStateTrie(id, db.db.TrieDB())
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if err != nil {
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t.Fatalf("Failed to open trie: %v", err)
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}
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sf := newPrefetcher(tr, false)
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addr := common.HexToAddress("0xaffeaffeaffeaffeaffeaffeaffeaffeaffeaffe")
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// Scheduling before termination should succeed.
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if err := sf.scheduleAccounts([]common.Address{addr}, false); err != nil {
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t.Fatalf("Schedule failed before terminate: %v", err)
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}
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// Terminate synchronously — waits for pending tasks.
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sf.terminate()
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// Scheduling after termination should fail.
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if err := sf.scheduleAccounts([]common.Address{addr}, false); err == nil {
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t.Fatal("Schedule succeeded after terminate")
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}
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}
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func TestWrapTriePrefetch(t *testing.T) {
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db := filledStateDB()
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// Create a wrapTrie with prefetching enabled.
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id := trie.StateTrieID(db.originalRoot)
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tr, err := newWrapTrie(id, db.db.TrieDB(), true, true)
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if err != nil {
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t.Fatalf("Failed to create wrapTrie: %v", err)
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}
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addr := common.HexToAddress("0xaffeaffeaffeaffeaffeaffeaffeaffeaffeaffe")
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// Schedule some prefetch work.
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tr.prefetchAccounts([]common.Address{addr}, false)
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// Terminate and verify the trie is usable.
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tr.term()
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if tr.Hash() == (common.Hash{}) {
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t.Fatal("wrapTrie hash is zero after prefetch")
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}
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}
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