mirror of
https://github.com/ethereum/go-ethereum.git
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240 lines
8.4 KiB
Go
240 lines
8.4 KiB
Go
// This file contains some shares testing functionality, common to multiple
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// different files and modules being tested.
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package les
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import (
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"crypto/rand"
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"math/big"
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"sync"
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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"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/les/access"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/discover"
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"github.com/ethereum/go-ethereum/params"
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)
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var (
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testBankKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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testBankAddress = crypto.PubkeyToAddress(testBankKey.PublicKey)
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testBankFunds = big.NewInt(1000000)
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acc1Key, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
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acc2Key, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
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acc1Addr = crypto.PubkeyToAddress(acc1Key.PublicKey)
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acc2Addr = crypto.PubkeyToAddress(acc2Key.PublicKey)
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)
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func testChainGen(i int, block *core.BlockGen) {
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switch i {
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case 0:
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// In block 1, the test bank sends account #1 some ether.
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tx, _ := types.NewTransaction(block.TxNonce(testBankAddress), acc1Addr, big.NewInt(10000), params.TxGas, nil, nil).SignECDSA(testBankKey)
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block.AddTx(tx)
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case 1:
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// In block 2, the test bank sends some more ether to account #1.
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// acc1Addr passes it on to account #2.
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// acc1Addr creates a test contract.
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tx1, _ := types.NewTransaction(block.TxNonce(testBankAddress), acc1Addr, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(testBankKey)
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nonce := block.TxNonce(acc1Addr)
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tx2, _ := types.NewTransaction(nonce, acc2Addr, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(acc1Key)
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nonce++
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tx3, _ := types.NewContractCreation(nonce, big.NewInt(0), big.NewInt(100000), big.NewInt(0), testContractCode).SignECDSA(acc1Key)
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testContractAddr = crypto.CreateAddress(acc1Addr, nonce)
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block.AddTx(tx1)
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block.AddTx(tx2)
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block.AddTx(tx3)
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case 2:
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// Block 3 is empty but was mined by account #2.
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block.SetCoinbase(acc2Addr)
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block.SetExtra([]byte("yeehaw"))
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data := common.Hex2Bytes("C16431B900000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001")
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tx, _ := types.NewTransaction(block.TxNonce(testBankAddress), testContractAddr, big.NewInt(0), big.NewInt(100000), nil, data).SignECDSA(testBankKey)
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block.AddTx(tx)
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case 3:
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// Block 4 includes blocks 2 and 3 as uncle headers (with modified extra data).
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b2 := block.PrevBlock(1).Header()
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b2.Extra = []byte("foo")
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block.AddUncle(b2)
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b3 := block.PrevBlock(2).Header()
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b3.Extra = []byte("foo")
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block.AddUncle(b3)
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data := common.Hex2Bytes("C16431B900000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002")
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tx, _ := types.NewTransaction(block.TxNonce(testBankAddress), testContractAddr, big.NewInt(0), big.NewInt(100000), nil, data).SignECDSA(testBankKey)
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block.AddTx(tx)
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}
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}
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// newTestProtocolManager creates a new protocol manager for testing purposes,
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// with the given number of blocks already known, and potential notification
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// channels for different events.
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func newTestProtocolManager(mode Mode, blocks int, generator func(int, *core.BlockGen)) (*ProtocolManager, *access.ChainAccess, error) {
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var (
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evmux = new(event.TypeMux)
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pow = new(core.FakePow)
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db, _ = ethdb.NewMemDatabase()
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ca = access.NewChainAccess(db, mode == LightMode)
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genesis = core.WriteGenesisBlockForTesting(db, core.GenesisAccount{testBankAddress, testBankFunds})
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blockchain, _ = core.NewBlockChain(ca, pow, evmux)
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blockproc = core.NewBlockProcessor(ca, pow, blockchain, evmux)
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)
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blockchain.SetProcessor(blockproc)
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chain, _ := core.GenerateChain(genesis, db, blocks, generator)
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if _, err := blockchain.InsertChain(chain); err != nil {
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panic(err)
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}
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pm, err := NewProtocolManager(mode, NetworkId, evmux, pow, blockchain, ca)
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if err != nil {
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return nil, nil, err
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}
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pm.Start()
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return pm, ca, nil
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}
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// newTestProtocolManagerMust creates a new protocol manager for testing purposes,
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// with the given number of blocks already known, and potential notification
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// channels for different events. In case of an error, the constructor force-
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// fails the test.
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func newTestProtocolManagerMust(t *testing.T, lightSync bool, blocks int, generator func(int, *core.BlockGen)) (*ProtocolManager, *access.ChainAccess) {
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mode := ArchiveMode
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if lightSync {
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mode = LightMode
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}
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pm, ca, err := newTestProtocolManager(mode, blocks, generator)
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if err != nil {
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t.Fatalf("Failed to create protocol manager: %v", err)
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}
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return pm, ca
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}
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// testTxPool is a fake, helper transaction pool for testing purposes
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type testTxPool struct {
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pool []*types.Transaction // Collection of all transactions
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added chan<- []*types.Transaction // Notification channel for new transactions
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lock sync.RWMutex // Protects the transaction pool
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}
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// AddTransactions appends a batch of transactions to the pool, and notifies any
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// listeners if the addition channel is non nil
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func (p *testTxPool) AddTransactions(txs []*types.Transaction) {
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p.lock.Lock()
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defer p.lock.Unlock()
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p.pool = append(p.pool, txs...)
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if p.added != nil {
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p.added <- txs
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}
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}
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// GetTransactions returns all the transactions known to the pool
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func (p *testTxPool) GetTransactions() types.Transactions {
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p.lock.RLock()
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defer p.lock.RUnlock()
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txs := make([]*types.Transaction, len(p.pool))
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copy(txs, p.pool)
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return txs
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}
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// newTestTransaction create a new dummy transaction.
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func newTestTransaction(from *crypto.Key, nonce uint64, datasize int) *types.Transaction {
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tx := types.NewTransaction(nonce, common.Address{}, big.NewInt(0), big.NewInt(100000), big.NewInt(0), make([]byte, datasize))
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tx, _ = tx.SignECDSA(from.PrivateKey)
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return tx
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}
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// testPeer is a simulated peer to allow testing direct network calls.
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type testPeer struct {
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net p2p.MsgReadWriter // Network layer reader/writer to simulate remote messaging
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app *p2p.MsgPipeRW // Application layer reader/writer to simulate the local side
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*peer
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}
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// newTestPeer creates a new peer registered at the given protocol manager.
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func newTestPeer(name string, version int, pm *ProtocolManager, shake bool) (*testPeer, <-chan error) {
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// Create a message pipe to communicate through
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app, net := p2p.MsgPipe()
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// Generate a random id and create the peer
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var id discover.NodeID
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rand.Read(id[:])
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peer := pm.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), net)
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// Start the peer on a new thread
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errc := make(chan error, 1)
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go func() {
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pm.newPeerCh <- peer
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errc <- pm.handle(peer)
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}()
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tp := &testPeer{
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app: app,
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net: net,
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peer: peer,
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}
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// Execute any implicitly requested handshakes and return
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if shake {
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td, head, genesis := pm.blockchain.Status()
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tp.handshake(nil, td, head, genesis)
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}
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return tp, errc
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}
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func newTestPeerPair(name string, version int, pm, pm2 *ProtocolManager) (*peer, <-chan error, *peer, <-chan error) {
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// Create a message pipe to communicate through
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app, net := p2p.MsgPipe()
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// Generate a random id and create the peer
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var id discover.NodeID
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rand.Read(id[:])
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peer := pm.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), net)
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peer2 := pm2.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), app)
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// Start the peer on a new thread
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errc := make(chan error, 1)
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errc2 := make(chan error, 1)
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go func() {
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pm.newPeerCh <- peer
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errc <- pm.handle(peer)
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}()
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go func() {
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pm2.newPeerCh <- peer2
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errc2 <- pm2.handle(peer2)
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}()
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return peer, errc, peer2, errc2
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}
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// handshake simulates a trivial handshake that expects the same state from the
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// remote side as we are simulating locally.
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func (p *testPeer) handshake(t *testing.T, td *big.Int, head common.Hash, genesis common.Hash) {
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msg := &statusData{
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ProtocolVersion: uint32(p.version),
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NetworkId: uint32(NetworkId),
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TD: td,
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CurrentBlock: head,
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GenesisBlock: genesis,
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}
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if err := p2p.ExpectMsg(p.app, StatusMsg, msg); err != nil {
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t.Fatalf("status recv: %v", err)
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}
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if err := p2p.Send(p.app, StatusMsg, msg); err != nil {
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t.Fatalf("status send: %v", err)
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}
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}
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// close terminates the local side of the peer, notifying the remote protocol
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// manager of termination.
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func (p *testPeer) close() {
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p.app.Close()
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}
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