91 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2018 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 rawdb
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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/types"
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	"github.com/ethereum/go-ethereum/rlp"
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)
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// Tests that positional lookup metadata can be stored and retrieved.
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func TestLookupStorage(t *testing.T) {
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	db := NewMemoryDatabase()
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	tx1 := types.NewTransaction(1, common.BytesToAddress([]byte{0x11}), big.NewInt(111), 1111, big.NewInt(11111), []byte{0x11, 0x11, 0x11})
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	tx2 := types.NewTransaction(2, common.BytesToAddress([]byte{0x22}), big.NewInt(222), 2222, big.NewInt(22222), []byte{0x22, 0x22, 0x22})
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	tx3 := types.NewTransaction(3, common.BytesToAddress([]byte{0x33}), big.NewInt(333), 3333, big.NewInt(33333), []byte{0x33, 0x33, 0x33})
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	txs := []*types.Transaction{tx1, tx2, tx3}
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	block := types.NewBlock(&types.Header{Number: big.NewInt(314)}, txs, nil, nil)
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	// Check that no transactions entries are in a pristine database
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	for i, tx := range txs {
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		if txn, _, _, _ := ReadTransaction(db, tx.Hash()); txn != nil {
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			t.Fatalf("tx #%d [%x]: non existent transaction returned: %v", i, tx.Hash(), txn)
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		}
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	}
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	// Insert all the transactions into the database, and verify contents
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	WriteBlock(db, block)
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	WriteTxLookupEntries(db, block)
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	for i, tx := range txs {
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		if txn, hash, number, index := ReadTransaction(db, tx.Hash()); txn == nil {
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			t.Fatalf("tx #%d [%x]: transaction not found", i, tx.Hash())
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		} else {
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			if hash != block.Hash() || number != block.NumberU64() || index != uint64(i) {
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				t.Fatalf("tx #%d [%x]: positional metadata mismatch: have %x/%d/%d, want %x/%v/%v", i, tx.Hash(), hash, number, index, block.Hash(), block.NumberU64(), i)
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			}
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			if tx.Hash() != txn.Hash() {
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				t.Fatalf("tx #%d [%x]: transaction mismatch: have %v, want %v", i, tx.Hash(), txn, tx)
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			}
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		}
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	}
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	// Delete the transactions and check purge
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	for i, tx := range txs {
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		DeleteTxLookupEntry(db, tx.Hash())
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		if txn, _, _, _ := ReadTransaction(db, tx.Hash()); txn != nil {
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			t.Fatalf("tx #%d [%x]: deleted transaction returned: %v", i, tx.Hash(), txn)
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		}
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	}
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	// Insert legacy txlookup and verify the data retrieval
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	for index, tx := range block.Transactions() {
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		entry := LegacyTxLookupEntry{
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			BlockHash:  block.Hash(),
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			BlockIndex: block.NumberU64(),
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			Index:      uint64(index),
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		}
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		data, _ := rlp.EncodeToBytes(entry)
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		db.Put(txLookupKey(tx.Hash()), data)
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	}
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	for i, tx := range txs {
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		if txn, hash, number, index := ReadTransaction(db, tx.Hash()); txn == nil {
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			t.Fatalf("tx #%d [%x]: transaction not found", i, tx.Hash())
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		} else {
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			if hash != block.Hash() || number != block.NumberU64() || index != uint64(i) {
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				t.Fatalf("tx #%d [%x]: positional metadata mismatch: have %x/%d/%d, want %x/%v/%v", i, tx.Hash(), hash, number, index, block.Hash(), block.NumberU64(), i)
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			}
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			if tx.Hash() != txn.Hash() {
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				t.Fatalf("tx #%d [%x]: transaction mismatch: have %v, want %v", i, tx.Hash(), txn, tx)
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			}
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		}
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	}
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}
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