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https://github.com/ethereum/go-ethereum.git
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78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
// Copyright 2023 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 triedb
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import (
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"bytes"
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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/rawdb"
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"github.com/ethereum/go-ethereum/triedb/hashdb"
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)
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// TestDatabasePreimages tests the preimage functionality of the trie database.
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func TestDatabasePreimages(t *testing.T) {
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// Create a database with preimages enabled
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memDB := rawdb.NewMemoryDatabase()
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config := &Config{
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Preimages: true,
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HashDB: hashdb.Defaults,
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}
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db := NewDatabase(memDB, config)
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defer db.Close()
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// Test inserting and retrieving preimages
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preimages := make(map[common.Hash][]byte)
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for i := 0; i < 10; i++ {
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data := []byte{byte(i), byte(i + 1), byte(i + 2)}
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hash := common.BytesToHash(data)
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preimages[hash] = data
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}
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// Insert preimages into the database
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db.InsertPreimage(preimages)
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// Verify all preimages are retrievable
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for hash, data := range preimages {
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retrieved := db.Preimage(hash)
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if retrieved == nil {
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t.Errorf("Preimage for %x not found", hash)
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}
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if !bytes.Equal(retrieved, data) {
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t.Errorf("Preimage data mismatch: got %x want %x", retrieved, data)
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}
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}
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// Test non-existent preimage
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nonExistentHash := common.HexToHash("deadbeef")
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if data := db.Preimage(nonExistentHash); data != nil {
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t.Errorf("Unexpected preimage data for non-existent hash: %x", data)
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}
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// Force preimage commit and verify again
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db.WritePreimages()
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for hash, data := range preimages {
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retrieved := db.Preimage(hash)
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if retrieved == nil {
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t.Errorf("Preimage for %x not found after forced commit", hash)
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}
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if !bytes.Equal(retrieved, data) {
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t.Errorf("Preimage data mismatch after forced commit: got %x want %x", retrieved, data)
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}
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}
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}
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