2395 lines
72 KiB
Go
2395 lines
72 KiB
Go
package chainntnfs_test
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import (
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"bytes"
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"sync"
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"testing"
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"github.com/btcsuite/btcd/chaincfg/chainhash"
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"github.com/btcsuite/btcd/wire"
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"github.com/btcsuite/btcutil"
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"github.com/lightningnetwork/lnd/chainntnfs"
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)
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var (
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testRawScript = []byte{
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// OP_HASH160
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0xa9,
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// OP_DATA_20
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0x14,
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// <20-byte script hash>
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0x90, 0x1c, 0x86, 0x94, 0xc0, 0x3f, 0xaf, 0xd5,
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0x52, 0x28, 0x10, 0xe0, 0x33, 0x0f, 0x26, 0xe6,
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0x7a, 0x85, 0x33, 0xcd,
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// OP_EQUAL
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0x87,
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}
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testSigScript = []byte{
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// OP_DATA_16
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0x16,
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// <22-byte redeem script>
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0x00, 0x14, 0x1d, 0x7c, 0xd6, 0xc7, 0x5c, 0x2e,
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0x86, 0xf4, 0xcb, 0xf9, 0x8e, 0xae, 0xd2, 0x21,
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0xb3, 0x0b, 0xd9, 0xa0, 0xb9, 0x28,
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}
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)
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type mockHintCache struct {
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mu sync.Mutex
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confHints map[chainntnfs.ConfRequest]uint32
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spendHints map[chainntnfs.SpendRequest]uint32
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}
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var _ chainntnfs.SpendHintCache = (*mockHintCache)(nil)
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var _ chainntnfs.ConfirmHintCache = (*mockHintCache)(nil)
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func (c *mockHintCache) CommitSpendHint(heightHint uint32,
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spendRequests ...chainntnfs.SpendRequest) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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for _, spendRequest := range spendRequests {
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c.spendHints[spendRequest] = heightHint
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}
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return nil
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}
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func (c *mockHintCache) QuerySpendHint(spendRequest chainntnfs.SpendRequest) (uint32, error) {
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c.mu.Lock()
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defer c.mu.Unlock()
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hint, ok := c.spendHints[spendRequest]
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if !ok {
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return 0, chainntnfs.ErrSpendHintNotFound
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}
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return hint, nil
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}
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func (c *mockHintCache) PurgeSpendHint(spendRequests ...chainntnfs.SpendRequest) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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for _, spendRequest := range spendRequests {
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delete(c.spendHints, spendRequest)
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}
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return nil
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}
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func (c *mockHintCache) CommitConfirmHint(heightHint uint32,
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confRequests ...chainntnfs.ConfRequest) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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for _, confRequest := range confRequests {
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c.confHints[confRequest] = heightHint
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}
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return nil
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}
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func (c *mockHintCache) QueryConfirmHint(confRequest chainntnfs.ConfRequest) (uint32, error) {
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c.mu.Lock()
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defer c.mu.Unlock()
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hint, ok := c.confHints[confRequest]
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if !ok {
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return 0, chainntnfs.ErrConfirmHintNotFound
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}
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return hint, nil
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}
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func (c *mockHintCache) PurgeConfirmHint(confRequests ...chainntnfs.ConfRequest) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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for _, confRequest := range confRequests {
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delete(c.confHints, confRequest)
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}
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return nil
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}
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func newMockHintCache() *mockHintCache {
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return &mockHintCache{
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confHints: make(map[chainntnfs.ConfRequest]uint32),
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spendHints: make(map[chainntnfs.SpendRequest]uint32),
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}
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}
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// TestTxNotifierRegistrationValidation ensures that we are not able to register
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// requests with invalid parameters.
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func TestTxNotifierRegistrationValidation(t *testing.T) {
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t.Parallel()
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testCases := []struct {
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name string
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pkScript []byte
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numConfs uint32
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heightHint uint32
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checkSpend bool
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err error
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}{
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{
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name: "empty output script",
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pkScript: nil,
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numConfs: 1,
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heightHint: 1,
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checkSpend: true,
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err: chainntnfs.ErrNoScript,
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},
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{
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name: "zero num confs",
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pkScript: testRawScript,
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numConfs: 0,
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heightHint: 1,
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err: chainntnfs.ErrNumConfsOutOfRange,
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},
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{
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name: "exceed max num confs",
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pkScript: testRawScript,
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numConfs: chainntnfs.MaxNumConfs + 1,
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heightHint: 1,
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err: chainntnfs.ErrNumConfsOutOfRange,
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},
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{
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name: "empty height hint",
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pkScript: testRawScript,
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numConfs: 1,
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heightHint: 0,
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checkSpend: true,
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err: chainntnfs.ErrNoHeightHint,
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},
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}
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for _, testCase := range testCases {
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testCase := testCase
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t.Run(testCase.name, func(t *testing.T) {
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hintCache := newMockHintCache()
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n := chainntnfs.NewTxNotifier(
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10, chainntnfs.ReorgSafetyLimit, hintCache, hintCache,
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)
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_, err := n.RegisterConf(
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&chainntnfs.ZeroHash, testCase.pkScript,
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testCase.numConfs, testCase.heightHint,
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)
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if err != testCase.err {
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t.Fatalf("conf registration expected error "+
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"\"%v\", got \"%v\"", testCase.err, err)
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}
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if !testCase.checkSpend {
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return
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}
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_, err = n.RegisterSpend(
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&chainntnfs.ZeroOutPoint, testCase.pkScript,
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testCase.heightHint,
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)
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if err != testCase.err {
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t.Fatalf("spend registration expected error "+
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"\"%v\", got \"%v\"", testCase.err, err)
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}
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})
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}
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}
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// TestTxNotifierFutureConfDispatch tests that the TxNotifier dispatches
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// registered notifications when a transaction confirms after registration.
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func TestTxNotifierFutureConfDispatch(t *testing.T) {
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t.Parallel()
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const (
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tx1NumConfs uint32 = 1
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tx2NumConfs uint32 = 2
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)
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hintCache := newMockHintCache()
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n := chainntnfs.NewTxNotifier(
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10, chainntnfs.ReorgSafetyLimit, hintCache, hintCache,
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)
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// Create the test transactions and register them with the TxNotifier
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// before including them in a block to receive future
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// notifications.
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tx1 := wire.MsgTx{Version: 1}
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tx1.AddTxOut(&wire.TxOut{PkScript: testRawScript})
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tx1Hash := tx1.TxHash()
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ntfn1, err := n.RegisterConf(&tx1Hash, testRawScript, tx1NumConfs, 1)
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if err != nil {
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t.Fatalf("unable to register ntfn: %v", err)
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}
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tx2 := wire.MsgTx{Version: 2}
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tx2.AddTxOut(&wire.TxOut{PkScript: testRawScript})
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tx2Hash := tx2.TxHash()
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ntfn2, err := n.RegisterConf(&tx2Hash, testRawScript, tx2NumConfs, 1)
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if err != nil {
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t.Fatalf("unable to register ntfn: %v", err)
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}
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// We should not receive any notifications from both transactions
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// since they have not been included in a block yet.
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select {
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case <-ntfn1.Event.Updates:
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t.Fatal("Received unexpected confirmation update for tx1")
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case txConf := <-ntfn1.Event.Confirmed:
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t.Fatalf("Received unexpected confirmation for tx1: %v", txConf)
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default:
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}
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select {
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case <-ntfn2.Event.Updates:
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t.Fatal("Received unexpected confirmation update for tx2")
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case txConf := <-ntfn2.Event.Confirmed:
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t.Fatalf("Received unexpected confirmation for tx2: %v", txConf)
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default:
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}
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// Include the transactions in a block and add it to the TxNotifier.
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// This should confirm tx1, but not tx2.
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block1 := btcutil.NewBlock(&wire.MsgBlock{
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Transactions: []*wire.MsgTx{&tx1, &tx2},
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})
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err = n.ConnectTip(block1.Hash(), 11, block1.Transactions())
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if err != nil {
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t.Fatalf("Failed to connect block: %v", err)
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}
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if err := n.NotifyHeight(11); err != nil {
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t.Fatalf("unable to dispatch notifications: %v", err)
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}
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// We should only receive one update for tx1 since it only requires
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// one confirmation and it already met it.
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select {
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case numConfsLeft := <-ntfn1.Event.Updates:
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const expected = 0
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if numConfsLeft != expected {
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t.Fatalf("Received incorrect confirmation update: tx1 "+
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"expected %d confirmations left, got %d",
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expected, numConfsLeft)
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}
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default:
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t.Fatal("Expected confirmation update for tx1")
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}
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// A confirmation notification for this tranaction should be dispatched,
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// as it only required one confirmation.
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select {
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case txConf := <-ntfn1.Event.Confirmed:
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expectedConf := chainntnfs.TxConfirmation{
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BlockHash: block1.Hash(),
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BlockHeight: 11,
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TxIndex: 0,
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Tx: &tx1,
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}
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assertConfDetails(t, txConf, &expectedConf)
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default:
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t.Fatalf("Expected confirmation for tx1")
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}
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// We should only receive one update for tx2 since it only has one
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// confirmation so far and it requires two.
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select {
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case numConfsLeft := <-ntfn2.Event.Updates:
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const expected = 1
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if numConfsLeft != expected {
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t.Fatalf("Received incorrect confirmation update: tx2 "+
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"expected %d confirmations left, got %d",
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expected, numConfsLeft)
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}
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default:
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t.Fatal("Expected confirmation update for tx2")
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}
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// A confirmation notification for tx2 should not be dispatched yet, as
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// it requires one more confirmation.
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select {
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case txConf := <-ntfn2.Event.Confirmed:
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t.Fatalf("Received unexpected confirmation for tx2: %v", txConf)
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default:
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}
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// Create a new block and add it to the TxNotifier at the next height.
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// This should confirm tx2.
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block2 := btcutil.NewBlock(&wire.MsgBlock{})
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err = n.ConnectTip(block2.Hash(), 12, block2.Transactions())
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if err != nil {
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t.Fatalf("Failed to connect block: %v", err)
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}
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if err := n.NotifyHeight(12); err != nil {
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t.Fatalf("unable to dispatch notifications: %v", err)
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}
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// We should not receive any event notifications for tx1 since it has
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// already been confirmed.
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select {
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case <-ntfn1.Event.Updates:
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t.Fatal("Received unexpected confirmation update for tx1")
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case txConf := <-ntfn1.Event.Confirmed:
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t.Fatalf("Received unexpected confirmation for tx1: %v", txConf)
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default:
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}
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// We should only receive one update since the last at the new height,
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// indicating how many confirmations are still left.
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select {
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case numConfsLeft := <-ntfn2.Event.Updates:
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const expected = 0
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if numConfsLeft != expected {
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t.Fatalf("Received incorrect confirmation update: tx2 "+
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"expected %d confirmations left, got %d",
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expected, numConfsLeft)
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}
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default:
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t.Fatal("Expected confirmation update for tx2")
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}
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// A confirmation notification for tx2 should be dispatched, since it
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// now meets its required number of confirmations.
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select {
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case txConf := <-ntfn2.Event.Confirmed:
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expectedConf := chainntnfs.TxConfirmation{
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BlockHash: block1.Hash(),
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BlockHeight: 11,
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TxIndex: 1,
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Tx: &tx2,
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}
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assertConfDetails(t, txConf, &expectedConf)
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default:
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t.Fatalf("Expected confirmation for tx2")
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}
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}
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// TestTxNotifierHistoricalConfDispatch tests that the TxNotifier dispatches
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// registered notifications when the transaction is confirmed before
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// registration.
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func TestTxNotifierHistoricalConfDispatch(t *testing.T) {
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t.Parallel()
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const (
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tx1NumConfs uint32 = 1
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tx2NumConfs uint32 = 3
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)
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var (
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tx1 = wire.MsgTx{Version: 1}
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tx2 = wire.MsgTx{Version: 2}
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tx3 = wire.MsgTx{Version: 3}
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)
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hintCache := newMockHintCache()
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n := chainntnfs.NewTxNotifier(
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10, chainntnfs.ReorgSafetyLimit, hintCache, hintCache,
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)
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// Create the test transactions at a height before the TxNotifier's
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// starting height so that they are confirmed once registering them.
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tx1Hash := tx1.TxHash()
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ntfn1, err := n.RegisterConf(&tx1Hash, testRawScript, tx1NumConfs, 1)
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if err != nil {
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t.Fatalf("unable to register ntfn: %v", err)
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}
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tx2Hash := tx2.TxHash()
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ntfn2, err := n.RegisterConf(&tx2Hash, testRawScript, tx2NumConfs, 1)
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if err != nil {
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t.Fatalf("unable to register ntfn: %v", err)
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}
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// Update tx1 with its confirmation details. We should only receive one
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// update since it only requires one confirmation and it already met it.
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txConf1 := chainntnfs.TxConfirmation{
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BlockHash: &chainntnfs.ZeroHash,
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BlockHeight: 9,
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TxIndex: 1,
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Tx: &tx1,
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}
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err = n.UpdateConfDetails(ntfn1.HistoricalDispatch.ConfRequest, &txConf1)
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if err != nil {
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t.Fatalf("unable to update conf details: %v", err)
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}
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select {
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case numConfsLeft := <-ntfn1.Event.Updates:
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const expected = 0
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if numConfsLeft != expected {
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t.Fatalf("Received incorrect confirmation update: tx1 "+
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"expected %d confirmations left, got %d",
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expected, numConfsLeft)
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}
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default:
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t.Fatal("Expected confirmation update for tx1")
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}
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|
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// A confirmation notification for tx1 should also be dispatched.
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select {
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case txConf := <-ntfn1.Event.Confirmed:
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assertConfDetails(t, txConf, &txConf1)
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default:
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t.Fatalf("Expected confirmation for tx1")
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}
|
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|
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// Update tx2 with its confirmation details. This should not trigger a
|
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// confirmation notification since it hasn't reached its required number
|
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// of confirmations, but we should receive a confirmation update
|
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// indicating how many confirmation are left.
|
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txConf2 := chainntnfs.TxConfirmation{
|
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BlockHash: &chainntnfs.ZeroHash,
|
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BlockHeight: 9,
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TxIndex: 2,
|
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Tx: &tx2,
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}
|
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err = n.UpdateConfDetails(ntfn2.HistoricalDispatch.ConfRequest, &txConf2)
|
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if err != nil {
|
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t.Fatalf("unable to update conf details: %v", err)
|
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}
|
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select {
|
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case numConfsLeft := <-ntfn2.Event.Updates:
|
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const expected = 1
|
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if numConfsLeft != expected {
|
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t.Fatalf("Received incorrect confirmation update: tx2 "+
|
|
"expected %d confirmations left, got %d",
|
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expected, numConfsLeft)
|
|
}
|
|
default:
|
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t.Fatal("Expected confirmation update for tx2")
|
|
}
|
|
|
|
select {
|
|
case txConf := <-ntfn2.Event.Confirmed:
|
|
t.Fatalf("Received unexpected confirmation for tx2: %v", txConf)
|
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default:
|
|
}
|
|
|
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// Create a new block and add it to the TxNotifier at the next height.
|
|
// This should confirm tx2.
|
|
block := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&tx3},
|
|
})
|
|
|
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err = n.ConnectTip(block.Hash(), 11, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(11); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// We should not receive any event notifications for tx1 since it has
|
|
// already been confirmed.
|
|
select {
|
|
case <-ntfn1.Event.Updates:
|
|
t.Fatal("Received unexpected confirmation update for tx1")
|
|
case txConf := <-ntfn1.Event.Confirmed:
|
|
t.Fatalf("Received unexpected confirmation for tx1: %v", txConf)
|
|
default:
|
|
}
|
|
|
|
// We should only receive one update for tx2 since the last one,
|
|
// indicating how many confirmations are still left.
|
|
select {
|
|
case numConfsLeft := <-ntfn2.Event.Updates:
|
|
const expected = 0
|
|
if numConfsLeft != expected {
|
|
t.Fatalf("Received incorrect confirmation update: tx2 "+
|
|
"expected %d confirmations left, got %d",
|
|
expected, numConfsLeft)
|
|
}
|
|
default:
|
|
t.Fatal("Expected confirmation update for tx2")
|
|
}
|
|
|
|
// A confirmation notification for tx2 should be dispatched, as it met
|
|
// its required number of confirmations.
|
|
select {
|
|
case txConf := <-ntfn2.Event.Confirmed:
|
|
assertConfDetails(t, txConf, &txConf2)
|
|
default:
|
|
t.Fatalf("Expected confirmation for tx2")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierFutureSpendDispatch tests that the TxNotifier dispatches
|
|
// registered notifications when an outpoint is spent after registration.
|
|
func TestTxNotifierFutureSpendDispatch(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
10, chainntnfs.ReorgSafetyLimit, hintCache, hintCache,
|
|
)
|
|
|
|
// We'll start off by registering for a spend notification of an
|
|
// outpoint.
|
|
op := wire.OutPoint{Index: 1}
|
|
ntfn, err := n.RegisterSpend(&op, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
// We should not receive a notification as the outpoint has not been
|
|
// spent yet.
|
|
select {
|
|
case <-ntfn.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
default:
|
|
}
|
|
|
|
// Construct the details of the spending transaction of the outpoint
|
|
// above. We'll include it in the next block, which should trigger a
|
|
// spend notification.
|
|
spendTx := wire.NewMsgTx(2)
|
|
spendTx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: op,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
spendTxHash := spendTx.TxHash()
|
|
block := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{spendTx},
|
|
})
|
|
err = n.ConnectTip(block.Hash(), 11, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(11); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
expectedSpendDetails := &chainntnfs.SpendDetail{
|
|
SpentOutPoint: &op,
|
|
SpenderTxHash: &spendTxHash,
|
|
SpendingTx: spendTx,
|
|
SpenderInputIndex: 0,
|
|
SpendingHeight: 11,
|
|
}
|
|
|
|
// Ensure that the details of the notification match as expected.
|
|
select {
|
|
case spendDetails := <-ntfn.Event.Spend:
|
|
assertSpendDetails(t, spendDetails, expectedSpendDetails)
|
|
default:
|
|
t.Fatal("expected to receive spend details")
|
|
}
|
|
|
|
// Finally, we'll ensure that if the spending transaction has also been
|
|
// spent, then we don't receive another spend notification.
|
|
prevOut := wire.OutPoint{Hash: spendTxHash, Index: 0}
|
|
spendOfSpend := wire.NewMsgTx(2)
|
|
spendOfSpend.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: prevOut,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
block = btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{spendOfSpend},
|
|
})
|
|
err = n.ConnectTip(block.Hash(), 12, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(12); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
select {
|
|
case <-ntfn.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
default:
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierFutureConfDispatchReuseSafe tests that the notifier does not
|
|
// misbehave even if two confirmation requests for the same script are issued
|
|
// at different block heights (which means funds are being sent to the same
|
|
// script multiple times).
|
|
func TestTxNotifierFutureConfDispatchReuseSafe(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
currentBlock := uint32(10)
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
currentBlock, 2, hintCache, hintCache,
|
|
)
|
|
|
|
// We'll register a TX that sends to our test script and put it into a
|
|
// block. Additionally we register a notification request for just the
|
|
// script which should also be confirmed with that block.
|
|
tx1 := wire.MsgTx{Version: 1}
|
|
tx1.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx1Hash := tx1.TxHash()
|
|
ntfn1, err := n.RegisterConf(&tx1Hash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register ntfn: %v", err)
|
|
}
|
|
scriptNtfn1, err := n.RegisterConf(nil, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register ntfn: %v", err)
|
|
}
|
|
block := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&tx1},
|
|
})
|
|
currentBlock++
|
|
err = n.ConnectTip(block.Hash(), currentBlock, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(currentBlock); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// Expect an update and confirmation of TX 1 at this point. We save the
|
|
// confirmation details because we expect to receive the same details
|
|
// for all further registrations.
|
|
var confDetails *chainntnfs.TxConfirmation
|
|
select {
|
|
case <-ntfn1.Event.Updates:
|
|
default:
|
|
t.Fatal("expected update of TX 1")
|
|
}
|
|
select {
|
|
case confDetails = <-ntfn1.Event.Confirmed:
|
|
if confDetails.BlockHeight != currentBlock {
|
|
t.Fatalf("expected TX to be confirmed in latest block")
|
|
}
|
|
default:
|
|
t.Fatal("expected confirmation of TX 1")
|
|
}
|
|
|
|
// The notification for the script should also have received a
|
|
// confirmation.
|
|
select {
|
|
case <-scriptNtfn1.Event.Updates:
|
|
default:
|
|
t.Fatal("expected update of script ntfn")
|
|
}
|
|
select {
|
|
case details := <-scriptNtfn1.Event.Confirmed:
|
|
assertConfDetails(t, details, confDetails)
|
|
default:
|
|
t.Fatal("expected update of script ntfn")
|
|
}
|
|
|
|
// Now register a second TX that spends to two outputs with the same
|
|
// script so we have a different TXID. And again register a confirmation
|
|
// for just the script.
|
|
tx2 := wire.MsgTx{Version: 1}
|
|
tx2.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx2.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx2Hash := tx2.TxHash()
|
|
ntfn2, err := n.RegisterConf(&tx2Hash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register ntfn: %v", err)
|
|
}
|
|
scriptNtfn2, err := n.RegisterConf(nil, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register ntfn: %v", err)
|
|
}
|
|
block2 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&tx2},
|
|
})
|
|
currentBlock++
|
|
err = n.ConnectTip(block2.Hash(), currentBlock, block2.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(currentBlock); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// Transaction 2 should get a confirmation here too. Since it was
|
|
// a different TXID we wouldn't get the cached details here but the TX
|
|
// should be confirmed right away still.
|
|
select {
|
|
case <-ntfn2.Event.Updates:
|
|
default:
|
|
t.Fatal("expected update of TX 2")
|
|
}
|
|
select {
|
|
case details := <-ntfn2.Event.Confirmed:
|
|
if details.BlockHeight != currentBlock {
|
|
t.Fatalf("expected TX to be confirmed in latest block")
|
|
}
|
|
default:
|
|
t.Fatal("expected update of TX 2")
|
|
}
|
|
|
|
// The second notification for the script should also have received a
|
|
// confirmation. Since it's the same script, we expect to get the cached
|
|
// details from the first TX back immediately. Nothing should be
|
|
// registered at the notifier for the current block height for that
|
|
// script any more.
|
|
select {
|
|
case <-scriptNtfn2.Event.Updates:
|
|
default:
|
|
t.Fatal("expected update of script ntfn")
|
|
}
|
|
select {
|
|
case details := <-scriptNtfn2.Event.Confirmed:
|
|
assertConfDetails(t, details, confDetails)
|
|
default:
|
|
t.Fatal("expected update of script ntfn")
|
|
}
|
|
|
|
// Finally, mine a few empty blocks and expect both TXs to be confirmed.
|
|
for currentBlock < 15 {
|
|
block := btcutil.NewBlock(&wire.MsgBlock{})
|
|
currentBlock++
|
|
err = n.ConnectTip(
|
|
block.Hash(), currentBlock, block.Transactions(),
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(currentBlock); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
}
|
|
|
|
// Events for both confirmation requests should have been dispatched.
|
|
select {
|
|
case <-ntfn1.Event.Done:
|
|
default:
|
|
t.Fatal("expected notifications for TX 1 to be done")
|
|
}
|
|
select {
|
|
case <-ntfn2.Event.Done:
|
|
default:
|
|
t.Fatal("expected notifications for TX 2 to be done")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierHistoricalSpendDispatch tests that the TxNotifier dispatches
|
|
// registered notifications when an outpoint is spent before registration.
|
|
func TestTxNotifierHistoricalSpendDispatch(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const startingHeight = 10
|
|
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
startingHeight, chainntnfs.ReorgSafetyLimit, hintCache,
|
|
hintCache,
|
|
)
|
|
|
|
// We'll start by constructing the spending details of the outpoint
|
|
// below.
|
|
spentOutpoint := wire.OutPoint{Index: 1}
|
|
spendTx := wire.NewMsgTx(2)
|
|
spendTx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: spentOutpoint,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
spendTxHash := spendTx.TxHash()
|
|
|
|
expectedSpendDetails := &chainntnfs.SpendDetail{
|
|
SpentOutPoint: &spentOutpoint,
|
|
SpenderTxHash: &spendTxHash,
|
|
SpendingTx: spendTx,
|
|
SpenderInputIndex: 0,
|
|
SpendingHeight: startingHeight - 1,
|
|
}
|
|
|
|
// We'll register for a spend notification of the outpoint and ensure
|
|
// that a notification isn't dispatched.
|
|
ntfn, err := n.RegisterSpend(&spentOutpoint, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
select {
|
|
case <-ntfn.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
default:
|
|
}
|
|
|
|
// Because we're interested in testing the case of a historical spend,
|
|
// we'll hand off the spending details of the outpoint to the notifier
|
|
// as it is not possible for it to view historical events in the chain.
|
|
// By doing this, we replicate the functionality of the ChainNotifier.
|
|
err = n.UpdateSpendDetails(
|
|
ntfn.HistoricalDispatch.SpendRequest, expectedSpendDetails,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unable to update spend details: %v", err)
|
|
}
|
|
|
|
// Now that we have the spending details, we should receive a spend
|
|
// notification. We'll ensure that the details match as intended.
|
|
select {
|
|
case spendDetails := <-ntfn.Event.Spend:
|
|
assertSpendDetails(t, spendDetails, expectedSpendDetails)
|
|
default:
|
|
t.Fatalf("expected to receive spend details")
|
|
}
|
|
|
|
// Finally, we'll ensure that if the spending transaction has also been
|
|
// spent, then we don't receive another spend notification.
|
|
prevOut := wire.OutPoint{Hash: spendTxHash, Index: 0}
|
|
spendOfSpend := wire.NewMsgTx(2)
|
|
spendOfSpend.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: prevOut,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
block := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{spendOfSpend},
|
|
})
|
|
err = n.ConnectTip(block.Hash(), startingHeight+1, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(startingHeight + 1); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
select {
|
|
case <-ntfn.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
default:
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierMultipleHistoricalRescans ensures that we don't attempt to
|
|
// request multiple historical confirmation rescans per transactions.
|
|
func TestTxNotifierMultipleHistoricalConfRescans(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const startingHeight = 10
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
startingHeight, chainntnfs.ReorgSafetyLimit, hintCache,
|
|
hintCache,
|
|
)
|
|
|
|
// The first registration for a transaction in the notifier should
|
|
// request a historical confirmation rescan as it does not have a
|
|
// historical view of the chain.
|
|
ntfn1, err := n.RegisterConf(&chainntnfs.ZeroHash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
if ntfn1.HistoricalDispatch == nil {
|
|
t.Fatal("expected to receive historical dispatch request")
|
|
}
|
|
|
|
// We'll register another confirmation notification for the same
|
|
// transaction. This should not request a historical confirmation rescan
|
|
// since the first one is still pending.
|
|
ntfn2, err := n.RegisterConf(&chainntnfs.ZeroHash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
if ntfn2.HistoricalDispatch != nil {
|
|
t.Fatal("received unexpected historical rescan request")
|
|
}
|
|
|
|
// Finally, we'll mark the ongoing historical rescan as complete and
|
|
// register another notification. We should also expect not to see a
|
|
// historical rescan request since the confirmation details should be
|
|
// cached.
|
|
confDetails := &chainntnfs.TxConfirmation{
|
|
BlockHeight: startingHeight - 1,
|
|
}
|
|
err = n.UpdateConfDetails(ntfn1.HistoricalDispatch.ConfRequest, confDetails)
|
|
if err != nil {
|
|
t.Fatalf("unable to update conf details: %v", err)
|
|
}
|
|
|
|
ntfn3, err := n.RegisterConf(&chainntnfs.ZeroHash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
if ntfn3.HistoricalDispatch != nil {
|
|
t.Fatal("received unexpected historical rescan request")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierMultipleHistoricalRescans ensures that we don't attempt to
|
|
// request multiple historical spend rescans per outpoints.
|
|
func TestTxNotifierMultipleHistoricalSpendRescans(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const startingHeight = 10
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
startingHeight, chainntnfs.ReorgSafetyLimit, hintCache,
|
|
hintCache,
|
|
)
|
|
|
|
// The first registration for an outpoint in the notifier should request
|
|
// a historical spend rescan as it does not have a historical view of
|
|
// the chain.
|
|
op := wire.OutPoint{Index: 1}
|
|
ntfn1, err := n.RegisterSpend(&op, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
if ntfn1.HistoricalDispatch == nil {
|
|
t.Fatal("expected to receive historical dispatch request")
|
|
}
|
|
|
|
// We'll register another spend notification for the same outpoint. This
|
|
// should not request a historical spend rescan since the first one is
|
|
// still pending.
|
|
ntfn2, err := n.RegisterSpend(&op, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
if ntfn2.HistoricalDispatch != nil {
|
|
t.Fatal("received unexpected historical rescan request")
|
|
}
|
|
|
|
// Finally, we'll mark the ongoing historical rescan as complete and
|
|
// register another notification. We should also expect not to see a
|
|
// historical rescan request since the confirmation details should be
|
|
// cached.
|
|
spendDetails := &chainntnfs.SpendDetail{
|
|
SpentOutPoint: &op,
|
|
SpenderTxHash: &chainntnfs.ZeroHash,
|
|
SpendingTx: wire.NewMsgTx(2),
|
|
SpenderInputIndex: 0,
|
|
SpendingHeight: startingHeight - 1,
|
|
}
|
|
err = n.UpdateSpendDetails(
|
|
ntfn1.HistoricalDispatch.SpendRequest, spendDetails,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unable to update spend details: %v", err)
|
|
}
|
|
|
|
ntfn3, err := n.RegisterSpend(&op, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
if ntfn3.HistoricalDispatch != nil {
|
|
t.Fatal("received unexpected historical rescan request")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierMultipleHistoricalNtfns ensures that the TxNotifier will only
|
|
// request one rescan for a transaction/outpoint when having multiple client
|
|
// registrations. Once the rescan has completed and retrieved the
|
|
// confirmation/spend details, a notification should be dispatched to _all_
|
|
// clients.
|
|
func TestTxNotifierMultipleHistoricalNtfns(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const (
|
|
numNtfns = 5
|
|
startingHeight = 10
|
|
)
|
|
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
startingHeight, chainntnfs.ReorgSafetyLimit, hintCache,
|
|
hintCache,
|
|
)
|
|
|
|
var txid chainhash.Hash
|
|
copy(txid[:], bytes.Repeat([]byte{0x01}, 32))
|
|
|
|
// We'll start off by registered 5 clients for a confirmation
|
|
// notification on the same transaction.
|
|
confNtfns := make([]*chainntnfs.ConfRegistration, numNtfns)
|
|
for i := uint64(0); i < numNtfns; i++ {
|
|
ntfn, err := n.RegisterConf(&txid, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register conf ntfn #%d: %v", i, err)
|
|
}
|
|
confNtfns[i] = ntfn
|
|
}
|
|
|
|
// Ensure none of them have received the confirmation details.
|
|
for i, ntfn := range confNtfns {
|
|
select {
|
|
case <-ntfn.Event.Confirmed:
|
|
t.Fatalf("request #%d received unexpected confirmation "+
|
|
"notification", i)
|
|
default:
|
|
}
|
|
}
|
|
|
|
// We'll assume a historical rescan was dispatched and found the
|
|
// following confirmation details. We'll let the notifier know so that
|
|
// it can stop watching at tip.
|
|
expectedConfDetails := &chainntnfs.TxConfirmation{
|
|
BlockHeight: startingHeight - 1,
|
|
Tx: wire.NewMsgTx(1),
|
|
}
|
|
err := n.UpdateConfDetails(
|
|
confNtfns[0].HistoricalDispatch.ConfRequest, expectedConfDetails,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unable to update conf details: %v", err)
|
|
}
|
|
|
|
// With the confirmation details retrieved, each client should now have
|
|
// been notified of the confirmation.
|
|
for i, ntfn := range confNtfns {
|
|
select {
|
|
case confDetails := <-ntfn.Event.Confirmed:
|
|
assertConfDetails(t, confDetails, expectedConfDetails)
|
|
default:
|
|
t.Fatalf("request #%d expected to received "+
|
|
"confirmation notification", i)
|
|
}
|
|
}
|
|
|
|
// In order to ensure that the confirmation details are properly cached,
|
|
// we'll register another client for the same transaction. We should not
|
|
// see a historical rescan request and the confirmation notification
|
|
// should come through immediately.
|
|
extraConfNtfn, err := n.RegisterConf(&txid, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register conf ntfn: %v", err)
|
|
}
|
|
if extraConfNtfn.HistoricalDispatch != nil {
|
|
t.Fatal("received unexpected historical rescan request")
|
|
}
|
|
|
|
select {
|
|
case confDetails := <-extraConfNtfn.Event.Confirmed:
|
|
assertConfDetails(t, confDetails, expectedConfDetails)
|
|
default:
|
|
t.Fatal("expected to receive spend notification")
|
|
}
|
|
|
|
// Similarly, we'll do the same thing but for spend notifications.
|
|
op := wire.OutPoint{Index: 1}
|
|
spendNtfns := make([]*chainntnfs.SpendRegistration, numNtfns)
|
|
for i := uint64(0); i < numNtfns; i++ {
|
|
ntfn, err := n.RegisterSpend(&op, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn #%d: %v", i, err)
|
|
}
|
|
spendNtfns[i] = ntfn
|
|
}
|
|
|
|
// Ensure none of them have received the spend details.
|
|
for i, ntfn := range spendNtfns {
|
|
select {
|
|
case <-ntfn.Event.Spend:
|
|
t.Fatalf("request #%d received unexpected spend "+
|
|
"notification", i)
|
|
default:
|
|
}
|
|
}
|
|
|
|
// We'll assume a historical rescan was dispatched and found the
|
|
// following spend details. We'll let the notifier know so that it can
|
|
// stop watching at tip.
|
|
expectedSpendDetails := &chainntnfs.SpendDetail{
|
|
SpentOutPoint: &op,
|
|
SpenderTxHash: &chainntnfs.ZeroHash,
|
|
SpendingTx: wire.NewMsgTx(2),
|
|
SpenderInputIndex: 0,
|
|
SpendingHeight: startingHeight - 1,
|
|
}
|
|
err = n.UpdateSpendDetails(
|
|
spendNtfns[0].HistoricalDispatch.SpendRequest, expectedSpendDetails,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unable to update spend details: %v", err)
|
|
}
|
|
|
|
// With the spend details retrieved, each client should now have been
|
|
// notified of the spend.
|
|
for i, ntfn := range spendNtfns {
|
|
select {
|
|
case spendDetails := <-ntfn.Event.Spend:
|
|
assertSpendDetails(t, spendDetails, expectedSpendDetails)
|
|
default:
|
|
t.Fatalf("request #%d expected to received spend "+
|
|
"notification", i)
|
|
}
|
|
}
|
|
|
|
// Finally, in order to ensure that the spend details are properly
|
|
// cached, we'll register another client for the same outpoint. We
|
|
// should not see a historical rescan request and the spend notification
|
|
// should come through immediately.
|
|
extraSpendNtfn, err := n.RegisterSpend(&op, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
if extraSpendNtfn.HistoricalDispatch != nil {
|
|
t.Fatal("received unexpected historical rescan request")
|
|
}
|
|
|
|
select {
|
|
case spendDetails := <-extraSpendNtfn.Event.Spend:
|
|
assertSpendDetails(t, spendDetails, expectedSpendDetails)
|
|
default:
|
|
t.Fatal("expected to receive spend notification")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierCancelConf ensures that a confirmation notification after a
|
|
// client has canceled their intent to receive one.
|
|
func TestTxNotifierCancelConf(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const startingHeight = 10
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(startingHeight, 100, hintCache, hintCache)
|
|
|
|
// We'll register two notification requests. Only the second one will be
|
|
// canceled.
|
|
tx1 := wire.NewMsgTx(1)
|
|
tx1.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx1Hash := tx1.TxHash()
|
|
ntfn1, err := n.RegisterConf(&tx1Hash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
tx2 := wire.NewMsgTx(2)
|
|
tx2.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx2Hash := tx2.TxHash()
|
|
ntfn2, err := n.RegisterConf(&tx2Hash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
// Construct a block that will confirm both transactions.
|
|
block := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{tx1, tx2},
|
|
})
|
|
tx1ConfDetails := &chainntnfs.TxConfirmation{
|
|
BlockHeight: startingHeight + 1,
|
|
BlockHash: block.Hash(),
|
|
TxIndex: 0,
|
|
Tx: tx1,
|
|
}
|
|
|
|
// Before extending the notifier's tip with the block above, we'll
|
|
// cancel the second request.
|
|
n.CancelConf(ntfn2.HistoricalDispatch.ConfRequest, 2)
|
|
|
|
err = n.ConnectTip(block.Hash(), startingHeight+1, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(startingHeight + 1); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// The first request should still be active, so we should receive a
|
|
// confirmation notification with the correct details.
|
|
select {
|
|
case confDetails := <-ntfn1.Event.Confirmed:
|
|
assertConfDetails(t, confDetails, tx1ConfDetails)
|
|
default:
|
|
t.Fatalf("expected to receive confirmation notification")
|
|
}
|
|
|
|
// The second one, however, should not have. The event's Confirmed
|
|
// channel must have also been closed to indicate the caller that the
|
|
// TxNotifier can no longer fulfill their canceled request.
|
|
select {
|
|
case _, ok := <-ntfn2.Event.Confirmed:
|
|
if ok {
|
|
t.Fatal("expected Confirmed channel to be closed")
|
|
}
|
|
default:
|
|
t.Fatal("expected Confirmed channel to be closed")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierCancelSpend ensures that a spend notification after a client
|
|
// has canceled their intent to receive one.
|
|
func TestTxNotifierCancelSpend(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const startingHeight = 10
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
startingHeight, chainntnfs.ReorgSafetyLimit, hintCache,
|
|
hintCache,
|
|
)
|
|
|
|
// We'll register two notification requests. Only the second one will be
|
|
// canceled.
|
|
op1 := wire.OutPoint{Index: 1}
|
|
ntfn1, err := n.RegisterSpend(&op1, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
op2 := wire.OutPoint{Index: 2}
|
|
ntfn2, err := n.RegisterSpend(&op2, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
// Construct the spending details of the outpoint and create a dummy
|
|
// block containing it.
|
|
spendTx := wire.NewMsgTx(2)
|
|
spendTx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: op1,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
spendTxHash := spendTx.TxHash()
|
|
expectedSpendDetails := &chainntnfs.SpendDetail{
|
|
SpentOutPoint: &op1,
|
|
SpenderTxHash: &spendTxHash,
|
|
SpendingTx: spendTx,
|
|
SpenderInputIndex: 0,
|
|
SpendingHeight: startingHeight + 1,
|
|
}
|
|
|
|
block := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{spendTx},
|
|
})
|
|
|
|
// Before extending the notifier's tip with the dummy block above, we'll
|
|
// cancel the second request.
|
|
n.CancelSpend(ntfn2.HistoricalDispatch.SpendRequest, 2)
|
|
|
|
err = n.ConnectTip(block.Hash(), startingHeight+1, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(startingHeight + 1); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// The first request should still be active, so we should receive a
|
|
// spend notification with the correct spending details.
|
|
select {
|
|
case spendDetails := <-ntfn1.Event.Spend:
|
|
assertSpendDetails(t, spendDetails, expectedSpendDetails)
|
|
default:
|
|
t.Fatalf("expected to receive spend notification")
|
|
}
|
|
|
|
// The second one, however, should not have. The event's Spend channel
|
|
// must have also been closed to indicate the caller that the TxNotifier
|
|
// can no longer fulfill their canceled request.
|
|
select {
|
|
case _, ok := <-ntfn2.Event.Spend:
|
|
if ok {
|
|
t.Fatal("expected Spend channel to be closed")
|
|
}
|
|
default:
|
|
t.Fatal("expected Spend channel to be closed")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierConfReorg ensures that clients are notified of a reorg when a
|
|
// transaction for which they registered a confirmation notification has been
|
|
// reorged out of the chain.
|
|
func TestTxNotifierConfReorg(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const (
|
|
tx1NumConfs uint32 = 2
|
|
tx2NumConfs uint32 = 1
|
|
tx3NumConfs uint32 = 2
|
|
)
|
|
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
7, chainntnfs.ReorgSafetyLimit, hintCache, hintCache,
|
|
)
|
|
|
|
// Tx 1 will be confirmed in block 9 and requires 2 confs.
|
|
tx1 := wire.MsgTx{Version: 1}
|
|
tx1.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx1Hash := tx1.TxHash()
|
|
ntfn1, err := n.RegisterConf(&tx1Hash, testRawScript, tx1NumConfs, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register ntfn: %v", err)
|
|
}
|
|
|
|
err = n.UpdateConfDetails(ntfn1.HistoricalDispatch.ConfRequest, nil)
|
|
if err != nil {
|
|
t.Fatalf("unable to deliver conf details: %v", err)
|
|
}
|
|
|
|
// Tx 2 will be confirmed in block 10 and requires 1 conf.
|
|
tx2 := wire.MsgTx{Version: 2}
|
|
tx2.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx2Hash := tx2.TxHash()
|
|
ntfn2, err := n.RegisterConf(&tx2Hash, testRawScript, tx2NumConfs, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register ntfn: %v", err)
|
|
}
|
|
|
|
err = n.UpdateConfDetails(ntfn2.HistoricalDispatch.ConfRequest, nil)
|
|
if err != nil {
|
|
t.Fatalf("unable to deliver conf details: %v", err)
|
|
}
|
|
|
|
// Tx 3 will be confirmed in block 10 and requires 2 confs.
|
|
tx3 := wire.MsgTx{Version: 3}
|
|
tx3.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx3Hash := tx3.TxHash()
|
|
ntfn3, err := n.RegisterConf(&tx3Hash, testRawScript, tx3NumConfs, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register ntfn: %v", err)
|
|
}
|
|
|
|
err = n.UpdateConfDetails(ntfn3.HistoricalDispatch.ConfRequest, nil)
|
|
if err != nil {
|
|
t.Fatalf("unable to deliver conf details: %v", err)
|
|
}
|
|
|
|
// Sync chain to block 10. Txs 1 & 2 should be confirmed.
|
|
block1 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&tx1},
|
|
})
|
|
if err := n.ConnectTip(nil, 8, block1.Transactions()); err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(8); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
if err := n.ConnectTip(nil, 9, nil); err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(9); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
block2 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&tx2, &tx3},
|
|
})
|
|
if err := n.ConnectTip(nil, 10, block2.Transactions()); err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(10); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// We should receive two updates for tx1 since it requires two
|
|
// confirmations and it has already met them.
|
|
for i := 0; i < 2; i++ {
|
|
select {
|
|
case <-ntfn1.Event.Updates:
|
|
default:
|
|
t.Fatal("Expected confirmation update for tx1")
|
|
}
|
|
}
|
|
|
|
// A confirmation notification for tx1 should be dispatched, as it met
|
|
// its required number of confirmations.
|
|
select {
|
|
case <-ntfn1.Event.Confirmed:
|
|
default:
|
|
t.Fatalf("Expected confirmation for tx1")
|
|
}
|
|
|
|
// We should only receive one update for tx2 since it only requires
|
|
// one confirmation and it already met it.
|
|
select {
|
|
case <-ntfn2.Event.Updates:
|
|
default:
|
|
t.Fatal("Expected confirmation update for tx2")
|
|
}
|
|
|
|
// A confirmation notification for tx2 should be dispatched, as it met
|
|
// its required number of confirmations.
|
|
select {
|
|
case <-ntfn2.Event.Confirmed:
|
|
default:
|
|
t.Fatalf("Expected confirmation for tx2")
|
|
}
|
|
|
|
// We should only receive one update for tx3 since it only has one
|
|
// confirmation so far and it requires two.
|
|
select {
|
|
case <-ntfn3.Event.Updates:
|
|
default:
|
|
t.Fatal("Expected confirmation update for tx3")
|
|
}
|
|
|
|
// A confirmation notification for tx3 should not be dispatched yet, as
|
|
// it requires one more confirmation.
|
|
select {
|
|
case txConf := <-ntfn3.Event.Confirmed:
|
|
t.Fatalf("Received unexpected confirmation for tx3: %v", txConf)
|
|
default:
|
|
}
|
|
|
|
// The block that included tx2 and tx3 is disconnected and two next
|
|
// blocks without them are connected.
|
|
if err := n.DisconnectTip(10); err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
|
|
if err := n.ConnectTip(nil, 10, nil); err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(10); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
if err := n.ConnectTip(nil, 11, nil); err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(11); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
select {
|
|
case reorgDepth := <-ntfn2.Event.NegativeConf:
|
|
if reorgDepth != 1 {
|
|
t.Fatalf("Incorrect value for negative conf notification: "+
|
|
"expected %d, got %d", 1, reorgDepth)
|
|
}
|
|
default:
|
|
t.Fatalf("Expected negative conf notification for tx1")
|
|
}
|
|
|
|
// We should not receive any event notifications from all of the
|
|
// transactions because tx1 has already been confirmed and tx2 and tx3
|
|
// have not been included in the chain since the reorg.
|
|
select {
|
|
case <-ntfn1.Event.Updates:
|
|
t.Fatal("Received unexpected confirmation update for tx1")
|
|
case txConf := <-ntfn1.Event.Confirmed:
|
|
t.Fatalf("Received unexpected confirmation for tx1: %v", txConf)
|
|
default:
|
|
}
|
|
|
|
select {
|
|
case <-ntfn2.Event.Updates:
|
|
t.Fatal("Received unexpected confirmation update for tx2")
|
|
case txConf := <-ntfn2.Event.Confirmed:
|
|
t.Fatalf("Received unexpected confirmation for tx2: %v", txConf)
|
|
default:
|
|
}
|
|
|
|
select {
|
|
case <-ntfn3.Event.Updates:
|
|
t.Fatal("Received unexpected confirmation update for tx3")
|
|
case txConf := <-ntfn3.Event.Confirmed:
|
|
t.Fatalf("Received unexpected confirmation for tx3: %v", txConf)
|
|
default:
|
|
}
|
|
|
|
// Now transactions 2 & 3 are re-included in a new block.
|
|
block3 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&tx2, &tx3},
|
|
})
|
|
block4 := btcutil.NewBlock(&wire.MsgBlock{})
|
|
|
|
err = n.ConnectTip(block3.Hash(), 12, block3.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(12); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
err = n.ConnectTip(block4.Hash(), 13, block4.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(13); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// We should only receive one update for tx2 since it only requires
|
|
// one confirmation and it already met it.
|
|
select {
|
|
case numConfsLeft := <-ntfn2.Event.Updates:
|
|
const expected = 0
|
|
if numConfsLeft != expected {
|
|
t.Fatalf("Received incorrect confirmation update: tx2 "+
|
|
"expected %d confirmations left, got %d",
|
|
expected, numConfsLeft)
|
|
}
|
|
default:
|
|
t.Fatal("Expected confirmation update for tx2")
|
|
}
|
|
|
|
// A confirmation notification for tx2 should be dispatched, as it met
|
|
// its required number of confirmations.
|
|
select {
|
|
case txConf := <-ntfn2.Event.Confirmed:
|
|
expectedConf := chainntnfs.TxConfirmation{
|
|
BlockHash: block3.Hash(),
|
|
BlockHeight: 12,
|
|
TxIndex: 0,
|
|
Tx: &tx2,
|
|
}
|
|
assertConfDetails(t, txConf, &expectedConf)
|
|
default:
|
|
t.Fatalf("Expected confirmation for tx2")
|
|
}
|
|
|
|
// We should receive two updates for tx3 since it requires two
|
|
// confirmations and it has already met them.
|
|
for i := uint32(1); i <= 2; i++ {
|
|
select {
|
|
case numConfsLeft := <-ntfn3.Event.Updates:
|
|
expected := tx3NumConfs - i
|
|
if numConfsLeft != expected {
|
|
t.Fatalf("Received incorrect confirmation update: tx3 "+
|
|
"expected %d confirmations left, got %d",
|
|
expected, numConfsLeft)
|
|
}
|
|
default:
|
|
t.Fatal("Expected confirmation update for tx2")
|
|
}
|
|
}
|
|
|
|
// A confirmation notification for tx3 should be dispatched, as it met
|
|
// its required number of confirmations.
|
|
select {
|
|
case txConf := <-ntfn3.Event.Confirmed:
|
|
expectedConf := chainntnfs.TxConfirmation{
|
|
BlockHash: block3.Hash(),
|
|
BlockHeight: 12,
|
|
TxIndex: 1,
|
|
Tx: &tx3,
|
|
}
|
|
assertConfDetails(t, txConf, &expectedConf)
|
|
default:
|
|
t.Fatalf("Expected confirmation for tx3")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierSpendReorg ensures that clients are notified of a reorg when
|
|
// the spending transaction of an outpoint for which they registered a spend
|
|
// notification for has been reorged out of the chain.
|
|
func TestTxNotifierSpendReorg(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const startingHeight = 10
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
startingHeight, chainntnfs.ReorgSafetyLimit, hintCache,
|
|
hintCache,
|
|
)
|
|
|
|
// We'll have two outpoints that will be spent throughout the test. The
|
|
// first will be spent and will not experience a reorg, while the second
|
|
// one will.
|
|
op1 := wire.OutPoint{Index: 1}
|
|
spendTx1 := wire.NewMsgTx(2)
|
|
spendTx1.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: op1,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
spendTxHash1 := spendTx1.TxHash()
|
|
expectedSpendDetails1 := &chainntnfs.SpendDetail{
|
|
SpentOutPoint: &op1,
|
|
SpenderTxHash: &spendTxHash1,
|
|
SpendingTx: spendTx1,
|
|
SpenderInputIndex: 0,
|
|
SpendingHeight: startingHeight + 1,
|
|
}
|
|
|
|
op2 := wire.OutPoint{Index: 2}
|
|
spendTx2 := wire.NewMsgTx(2)
|
|
spendTx2.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: chainntnfs.ZeroOutPoint,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
spendTx2.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: op2,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
spendTxHash2 := spendTx2.TxHash()
|
|
|
|
// The second outpoint will experience a reorg and get re-spent at a
|
|
// different height, so we'll need to construct the spend details for
|
|
// before and after the reorg.
|
|
expectedSpendDetails2BeforeReorg := chainntnfs.SpendDetail{
|
|
SpentOutPoint: &op2,
|
|
SpenderTxHash: &spendTxHash2,
|
|
SpendingTx: spendTx2,
|
|
SpenderInputIndex: 1,
|
|
SpendingHeight: startingHeight + 2,
|
|
}
|
|
|
|
// The spend details after the reorg will be exactly the same, except
|
|
// for the spend confirming at the next height.
|
|
expectedSpendDetails2AfterReorg := expectedSpendDetails2BeforeReorg
|
|
expectedSpendDetails2AfterReorg.SpendingHeight++
|
|
|
|
// We'll register for a spend notification for each outpoint above.
|
|
ntfn1, err := n.RegisterSpend(&op1, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
ntfn2, err := n.RegisterSpend(&op2, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
// We'll extend the chain by connecting a new block at tip. This block
|
|
// will only contain the spending transaction of the first outpoint.
|
|
block1 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{spendTx1},
|
|
})
|
|
err = n.ConnectTip(block1.Hash(), startingHeight+1, block1.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(startingHeight + 1); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// We should receive a spend notification for the first outpoint with
|
|
// its correct spending details.
|
|
select {
|
|
case spendDetails := <-ntfn1.Event.Spend:
|
|
assertSpendDetails(t, spendDetails, expectedSpendDetails1)
|
|
default:
|
|
t.Fatal("expected to receive spend details")
|
|
}
|
|
|
|
// We should not, however, receive one for the second outpoint as it has
|
|
// yet to be spent.
|
|
select {
|
|
case <-ntfn2.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
default:
|
|
}
|
|
|
|
// Now, we'll extend the chain again, this time with a block containing
|
|
// the spending transaction of the second outpoint.
|
|
block2 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{spendTx2},
|
|
})
|
|
err = n.ConnectTip(block2.Hash(), startingHeight+2, block2.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(startingHeight + 2); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// We should not receive another spend notification for the first
|
|
// outpoint.
|
|
select {
|
|
case <-ntfn1.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
default:
|
|
}
|
|
|
|
// We should receive one for the second outpoint.
|
|
select {
|
|
case spendDetails := <-ntfn2.Event.Spend:
|
|
assertSpendDetails(
|
|
t, spendDetails, &expectedSpendDetails2BeforeReorg,
|
|
)
|
|
default:
|
|
t.Fatal("expected to receive spend details")
|
|
}
|
|
|
|
// Now, to replicate a chain reorg, we'll disconnect the block that
|
|
// contained the spending transaction of the second outpoint.
|
|
if err := n.DisconnectTip(startingHeight + 2); err != nil {
|
|
t.Fatalf("unable to disconnect block: %v", err)
|
|
}
|
|
|
|
// No notifications should be dispatched for the first outpoint as it
|
|
// was spent at a previous height.
|
|
select {
|
|
case <-ntfn1.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
case <-ntfn1.Event.Reorg:
|
|
t.Fatal("received unexpected spend reorg notification")
|
|
default:
|
|
}
|
|
|
|
// We should receive a reorg notification for the second outpoint.
|
|
select {
|
|
case <-ntfn2.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
case <-ntfn2.Event.Reorg:
|
|
default:
|
|
t.Fatal("expected spend reorg notification")
|
|
}
|
|
|
|
// We'll now extend the chain with an empty block, to ensure that we can
|
|
// properly detect when an outpoint has been re-spent at a later height.
|
|
emptyBlock := btcutil.NewBlock(&wire.MsgBlock{})
|
|
err = n.ConnectTip(
|
|
emptyBlock.Hash(), startingHeight+2, emptyBlock.Transactions(),
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unable to disconnect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(startingHeight + 2); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// We shouldn't receive notifications for either of the outpoints.
|
|
select {
|
|
case <-ntfn1.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
case <-ntfn1.Event.Reorg:
|
|
t.Fatal("received unexpected spend reorg notification")
|
|
case <-ntfn2.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
case <-ntfn2.Event.Reorg:
|
|
t.Fatal("received unexpected spend reorg notification")
|
|
default:
|
|
}
|
|
|
|
// Finally, extend the chain with another block containing the same
|
|
// spending transaction of the second outpoint.
|
|
err = n.ConnectTip(
|
|
block2.Hash(), startingHeight+3, block2.Transactions(),
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(startingHeight + 3); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// We should now receive a spend notification once again for the second
|
|
// outpoint containing the new spend details.
|
|
select {
|
|
case spendDetails := <-ntfn2.Event.Spend:
|
|
assertSpendDetails(
|
|
t, spendDetails, &expectedSpendDetails2AfterReorg,
|
|
)
|
|
default:
|
|
t.Fatalf("expected to receive spend notification")
|
|
}
|
|
|
|
// Once again, we should not receive one for the first outpoint.
|
|
select {
|
|
case <-ntfn1.Event.Spend:
|
|
t.Fatal("received unexpected spend notification")
|
|
default:
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierConfirmHintCache ensures that the height hints for transactions
|
|
// are kept track of correctly with each new block connected/disconnected. This
|
|
// test also asserts that the height hints are not updated until the simulated
|
|
// historical dispatches have returned, and we know the transactions aren't
|
|
// already in the chain.
|
|
func TestTxNotifierConfirmHintCache(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const (
|
|
startingHeight = 200
|
|
txDummyHeight = 201
|
|
tx1Height = 202
|
|
tx2Height = 203
|
|
)
|
|
|
|
// Initialize our TxNotifier instance backed by a height hint cache.
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
startingHeight, chainntnfs.ReorgSafetyLimit, hintCache,
|
|
hintCache,
|
|
)
|
|
|
|
// Create two test transactions and register them for notifications.
|
|
tx1 := wire.MsgTx{Version: 1}
|
|
tx1.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx1Hash := tx1.TxHash()
|
|
ntfn1, err := n.RegisterConf(&tx1Hash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register tx1: %v", err)
|
|
}
|
|
|
|
tx2 := wire.MsgTx{Version: 2}
|
|
tx2.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
tx2Hash := tx2.TxHash()
|
|
ntfn2, err := n.RegisterConf(&tx2Hash, testRawScript, 2, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register tx2: %v", err)
|
|
}
|
|
|
|
// Both transactions should not have a height hint set, as RegisterConf
|
|
// should not alter the cache state.
|
|
_, err = hintCache.QueryConfirmHint(ntfn1.HistoricalDispatch.ConfRequest)
|
|
if err != chainntnfs.ErrConfirmHintNotFound {
|
|
t.Fatalf("unexpected error when querying for height hint "+
|
|
"want: %v, got %v",
|
|
chainntnfs.ErrConfirmHintNotFound, err)
|
|
}
|
|
|
|
_, err = hintCache.QueryConfirmHint(ntfn2.HistoricalDispatch.ConfRequest)
|
|
if err != chainntnfs.ErrConfirmHintNotFound {
|
|
t.Fatalf("unexpected error when querying for height hint "+
|
|
"want: %v, got %v",
|
|
chainntnfs.ErrConfirmHintNotFound, err)
|
|
}
|
|
|
|
// Create a new block that will include the dummy transaction and extend
|
|
// the chain.
|
|
txDummy := wire.MsgTx{Version: 3}
|
|
block1 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&txDummy},
|
|
})
|
|
|
|
err = n.ConnectTip(block1.Hash(), txDummyHeight, block1.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(txDummyHeight); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// Since UpdateConfDetails has not been called for either transaction,
|
|
// the height hints should remain unchanged. This simulates blocks
|
|
// confirming while the historical dispatch is processing the
|
|
// registration.
|
|
hint, err := hintCache.QueryConfirmHint(ntfn1.HistoricalDispatch.ConfRequest)
|
|
if err != chainntnfs.ErrConfirmHintNotFound {
|
|
t.Fatalf("unexpected error when querying for height hint "+
|
|
"want: %v, got %v",
|
|
chainntnfs.ErrConfirmHintNotFound, err)
|
|
}
|
|
|
|
hint, err = hintCache.QueryConfirmHint(ntfn2.HistoricalDispatch.ConfRequest)
|
|
if err != chainntnfs.ErrConfirmHintNotFound {
|
|
t.Fatalf("unexpected error when querying for height hint "+
|
|
"want: %v, got %v",
|
|
chainntnfs.ErrConfirmHintNotFound, err)
|
|
}
|
|
|
|
// Now, update the conf details reporting that the neither txn was found
|
|
// in the historical dispatch.
|
|
err = n.UpdateConfDetails(ntfn1.HistoricalDispatch.ConfRequest, nil)
|
|
if err != nil {
|
|
t.Fatalf("unable to update conf details: %v", err)
|
|
}
|
|
err = n.UpdateConfDetails(ntfn2.HistoricalDispatch.ConfRequest, nil)
|
|
if err != nil {
|
|
t.Fatalf("unable to update conf details: %v", err)
|
|
}
|
|
|
|
// We'll create another block that will include the first transaction
|
|
// and extend the chain.
|
|
block2 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&tx1},
|
|
})
|
|
|
|
err = n.ConnectTip(block2.Hash(), tx1Height, block2.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(tx1Height); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// Now that both notifications are waiting at tip for confirmations,
|
|
// they should have their height hints updated to the latest block
|
|
// height.
|
|
hint, err = hintCache.QueryConfirmHint(ntfn1.HistoricalDispatch.ConfRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for hint: %v", err)
|
|
}
|
|
if hint != tx1Height {
|
|
t.Fatalf("expected hint %d, got %d",
|
|
tx1Height, hint)
|
|
}
|
|
|
|
hint, err = hintCache.QueryConfirmHint(ntfn2.HistoricalDispatch.ConfRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for hint: %v", err)
|
|
}
|
|
if hint != tx1Height {
|
|
t.Fatalf("expected hint %d, got %d",
|
|
tx2Height, hint)
|
|
}
|
|
|
|
// Next, we'll create another block that will include the second
|
|
// transaction and extend the chain.
|
|
block3 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{&tx2},
|
|
})
|
|
|
|
err = n.ConnectTip(block3.Hash(), tx2Height, block3.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("Failed to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(tx2Height); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// The height hint for the first transaction should remain the same.
|
|
hint, err = hintCache.QueryConfirmHint(ntfn1.HistoricalDispatch.ConfRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for hint: %v", err)
|
|
}
|
|
if hint != tx1Height {
|
|
t.Fatalf("expected hint %d, got %d",
|
|
tx1Height, hint)
|
|
}
|
|
|
|
// The height hint for the second transaction should now be updated to
|
|
// reflect its confirmation.
|
|
hint, err = hintCache.QueryConfirmHint(ntfn2.HistoricalDispatch.ConfRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for hint: %v", err)
|
|
}
|
|
if hint != tx2Height {
|
|
t.Fatalf("expected hint %d, got %d",
|
|
tx2Height, hint)
|
|
}
|
|
|
|
// Finally, we'll attempt do disconnect the last block in order to
|
|
// simulate a chain reorg.
|
|
if err := n.DisconnectTip(tx2Height); err != nil {
|
|
t.Fatalf("Failed to disconnect block: %v", err)
|
|
}
|
|
|
|
// This should update the second transaction's height hint within the
|
|
// cache to the previous height.
|
|
hint, err = hintCache.QueryConfirmHint(ntfn2.HistoricalDispatch.ConfRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for hint: %v", err)
|
|
}
|
|
if hint != tx1Height {
|
|
t.Fatalf("expected hint %d, got %d",
|
|
tx1Height, hint)
|
|
}
|
|
|
|
// The first transaction's height hint should remain at the original
|
|
// confirmation height.
|
|
hint, err = hintCache.QueryConfirmHint(ntfn2.HistoricalDispatch.ConfRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for hint: %v", err)
|
|
}
|
|
if hint != tx1Height {
|
|
t.Fatalf("expected hint %d, got %d",
|
|
tx1Height, hint)
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierSpendHintCache ensures that the height hints for outpoints are
|
|
// kept track of correctly with each new block connected/disconnected. This test
|
|
// also asserts that the height hints are not updated until the simulated
|
|
// historical dispatches have returned, and we know the outpoints haven't
|
|
// already been spent in the chain.
|
|
func TestTxNotifierSpendHintCache(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const (
|
|
startingHeight = 200
|
|
dummyHeight = 201
|
|
op1Height = 202
|
|
op2Height = 203
|
|
)
|
|
|
|
// Intiialize our TxNotifier instance backed by a height hint cache.
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
startingHeight, chainntnfs.ReorgSafetyLimit, hintCache,
|
|
hintCache,
|
|
)
|
|
|
|
// Create two test outpoints and register them for spend notifications.
|
|
op1 := wire.OutPoint{Index: 1}
|
|
ntfn1, err := n.RegisterSpend(&op1, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend for op1: %v", err)
|
|
}
|
|
op2 := wire.OutPoint{Index: 2}
|
|
ntfn2, err := n.RegisterSpend(&op2, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend for op2: %v", err)
|
|
}
|
|
|
|
// Both outpoints should not have a spend hint set upon registration, as
|
|
// we must first determine whether they have already been spent in the
|
|
// chain.
|
|
_, err = hintCache.QuerySpendHint(ntfn1.HistoricalDispatch.SpendRequest)
|
|
if err != chainntnfs.ErrSpendHintNotFound {
|
|
t.Fatalf("unexpected error when querying for height hint "+
|
|
"expected: %v, got %v", chainntnfs.ErrSpendHintNotFound,
|
|
err)
|
|
}
|
|
_, err = hintCache.QuerySpendHint(ntfn2.HistoricalDispatch.SpendRequest)
|
|
if err != chainntnfs.ErrSpendHintNotFound {
|
|
t.Fatalf("unexpected error when querying for height hint "+
|
|
"expected: %v, got %v", chainntnfs.ErrSpendHintNotFound,
|
|
err)
|
|
}
|
|
|
|
// Create a new empty block and extend the chain.
|
|
emptyBlock := btcutil.NewBlock(&wire.MsgBlock{})
|
|
err = n.ConnectTip(
|
|
emptyBlock.Hash(), dummyHeight, emptyBlock.Transactions(),
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(dummyHeight); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// Since we haven't called UpdateSpendDetails on any of the test
|
|
// outpoints, this implies that there is a still a pending historical
|
|
// rescan for them, so their spend hints should not be created/updated.
|
|
_, err = hintCache.QuerySpendHint(ntfn1.HistoricalDispatch.SpendRequest)
|
|
if err != chainntnfs.ErrSpendHintNotFound {
|
|
t.Fatalf("unexpected error when querying for height hint "+
|
|
"expected: %v, got %v", chainntnfs.ErrSpendHintNotFound,
|
|
err)
|
|
}
|
|
_, err = hintCache.QuerySpendHint(ntfn2.HistoricalDispatch.SpendRequest)
|
|
if err != chainntnfs.ErrSpendHintNotFound {
|
|
t.Fatalf("unexpected error when querying for height hint "+
|
|
"expected: %v, got %v", chainntnfs.ErrSpendHintNotFound,
|
|
err)
|
|
}
|
|
|
|
// Now, we'll simulate that their historical rescans have finished by
|
|
// calling UpdateSpendDetails. This should allow their spend hints to be
|
|
// updated upon every block connected/disconnected.
|
|
err = n.UpdateSpendDetails(ntfn1.HistoricalDispatch.SpendRequest, nil)
|
|
if err != nil {
|
|
t.Fatalf("unable to update spend details: %v", err)
|
|
}
|
|
err = n.UpdateSpendDetails(ntfn2.HistoricalDispatch.SpendRequest, nil)
|
|
if err != nil {
|
|
t.Fatalf("unable to update spend details: %v", err)
|
|
}
|
|
|
|
// We'll create a new block that only contains the spending transaction
|
|
// of the first outpoint.
|
|
spendTx1 := wire.NewMsgTx(2)
|
|
spendTx1.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: op1,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
block1 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{spendTx1},
|
|
})
|
|
err = n.ConnectTip(block1.Hash(), op1Height, block1.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(op1Height); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// Both outpoints should have their spend hints reflect the height of
|
|
// the new block being connected due to the first outpoint being spent
|
|
// at this height, and the second outpoint still being unspent.
|
|
op1Hint, err := hintCache.QuerySpendHint(ntfn1.HistoricalDispatch.SpendRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for spend hint of op1: %v", err)
|
|
}
|
|
if op1Hint != op1Height {
|
|
t.Fatalf("expected hint %d, got %d", op1Height, op1Hint)
|
|
}
|
|
op2Hint, err := hintCache.QuerySpendHint(ntfn2.HistoricalDispatch.SpendRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for spend hint of op2: %v", err)
|
|
}
|
|
if op2Hint != op1Height {
|
|
t.Fatalf("expected hint %d, got %d", op1Height, op2Hint)
|
|
}
|
|
|
|
// Then, we'll create another block that spends the second outpoint.
|
|
spendTx2 := wire.NewMsgTx(2)
|
|
spendTx2.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: op2,
|
|
SignatureScript: testSigScript,
|
|
})
|
|
block2 := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{spendTx2},
|
|
})
|
|
err = n.ConnectTip(block2.Hash(), op2Height, block2.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(op2Height); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// Only the second outpoint should have its spend hint updated due to
|
|
// being spent within the new block. The first outpoint's spend hint
|
|
// should remain the same as it's already been spent before.
|
|
op1Hint, err = hintCache.QuerySpendHint(ntfn1.HistoricalDispatch.SpendRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for spend hint of op1: %v", err)
|
|
}
|
|
if op1Hint != op1Height {
|
|
t.Fatalf("expected hint %d, got %d", op1Height, op1Hint)
|
|
}
|
|
op2Hint, err = hintCache.QuerySpendHint(ntfn2.HistoricalDispatch.SpendRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for spend hint of op2: %v", err)
|
|
}
|
|
if op2Hint != op2Height {
|
|
t.Fatalf("expected hint %d, got %d", op2Height, op2Hint)
|
|
}
|
|
|
|
// Finally, we'll attempt do disconnect the last block in order to
|
|
// simulate a chain reorg.
|
|
if err := n.DisconnectTip(op2Height); err != nil {
|
|
t.Fatalf("unable to disconnect block: %v", err)
|
|
}
|
|
|
|
// This should update the second outpoint's spend hint within the cache
|
|
// to the previous height, as that's where its spending transaction was
|
|
// included in within the chain. The first outpoint's spend hint should
|
|
// remain the same.
|
|
op1Hint, err = hintCache.QuerySpendHint(ntfn1.HistoricalDispatch.SpendRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for spend hint of op1: %v", err)
|
|
}
|
|
if op1Hint != op1Height {
|
|
t.Fatalf("expected hint %d, got %d", op1Height, op1Hint)
|
|
}
|
|
op2Hint, err = hintCache.QuerySpendHint(ntfn2.HistoricalDispatch.SpendRequest)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for spend hint of op2: %v", err)
|
|
}
|
|
if op2Hint != op1Height {
|
|
t.Fatalf("expected hint %d, got %d", op1Height, op2Hint)
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierNtfnDone ensures that a notification is sent to registered
|
|
// clients through the Done channel once the notification request is no longer
|
|
// under the risk of being reorged out of the chain.
|
|
func TestTxNotifierNtfnDone(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
hintCache := newMockHintCache()
|
|
const reorgSafetyLimit = 100
|
|
n := chainntnfs.NewTxNotifier(10, reorgSafetyLimit, hintCache, hintCache)
|
|
|
|
// We'll start by creating two notification requests: one confirmation
|
|
// and one spend.
|
|
confNtfn, err := n.RegisterConf(&chainntnfs.ZeroHash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register conf ntfn: %v", err)
|
|
}
|
|
spendNtfn, err := n.RegisterSpend(&chainntnfs.ZeroOutPoint, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend: %v", err)
|
|
}
|
|
|
|
// We'll create two transactions that will satisfy the notification
|
|
// requests above and include them in the next block of the chain.
|
|
tx := wire.NewMsgTx(1)
|
|
tx.AddTxOut(&wire.TxOut{PkScript: testRawScript})
|
|
spendTx := wire.NewMsgTx(1)
|
|
spendTx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: wire.OutPoint{Index: 1},
|
|
SignatureScript: testSigScript,
|
|
})
|
|
block := btcutil.NewBlock(&wire.MsgBlock{
|
|
Transactions: []*wire.MsgTx{tx, spendTx},
|
|
})
|
|
|
|
err = n.ConnectTip(block.Hash(), 11, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(11); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
// With the chain extended, we should see notifications dispatched for
|
|
// both requests.
|
|
select {
|
|
case <-confNtfn.Event.Confirmed:
|
|
default:
|
|
t.Fatal("expected to receive confirmation notification")
|
|
}
|
|
|
|
select {
|
|
case <-spendNtfn.Event.Spend:
|
|
default:
|
|
t.Fatal("expected to receive spend notification")
|
|
}
|
|
|
|
// The done notifications should not be dispatched yet as the requests
|
|
// are still under the risk of being reorged out the chain.
|
|
select {
|
|
case <-confNtfn.Event.Done:
|
|
t.Fatal("received unexpected done notification for confirmation")
|
|
case <-spendNtfn.Event.Done:
|
|
t.Fatal("received unexpected done notification for spend")
|
|
default:
|
|
}
|
|
|
|
// Now, we'll disconnect the block at tip to simulate a reorg. The reorg
|
|
// notifications should be dispatched to the respective clients.
|
|
if err := n.DisconnectTip(11); err != nil {
|
|
t.Fatalf("unable to disconnect block: %v", err)
|
|
}
|
|
|
|
select {
|
|
case <-confNtfn.Event.NegativeConf:
|
|
default:
|
|
t.Fatal("expected to receive reorg notification for confirmation")
|
|
}
|
|
|
|
select {
|
|
case <-spendNtfn.Event.Reorg:
|
|
default:
|
|
t.Fatal("expected to receive reorg notification for spend")
|
|
}
|
|
|
|
// We'll reconnect the block that satisfies both of these requests.
|
|
// We should see notifications dispatched for both once again.
|
|
err = n.ConnectTip(block.Hash(), 11, block.Transactions())
|
|
if err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
if err := n.NotifyHeight(11); err != nil {
|
|
t.Fatalf("unable to dispatch notifications: %v", err)
|
|
}
|
|
|
|
select {
|
|
case <-confNtfn.Event.Confirmed:
|
|
default:
|
|
t.Fatal("expected to receive confirmation notification")
|
|
}
|
|
|
|
select {
|
|
case <-spendNtfn.Event.Spend:
|
|
default:
|
|
t.Fatal("expected to receive spend notification")
|
|
}
|
|
|
|
// Finally, we'll extend the chain with blocks until the requests are no
|
|
// longer under the risk of being reorged out of the chain. We should
|
|
// expect the done notifications to be dispatched.
|
|
nextHeight := uint32(12)
|
|
for i := nextHeight; i < nextHeight+reorgSafetyLimit; i++ {
|
|
dummyBlock := btcutil.NewBlock(&wire.MsgBlock{})
|
|
if err := n.ConnectTip(dummyBlock.Hash(), i, nil); err != nil {
|
|
t.Fatalf("unable to connect block: %v", err)
|
|
}
|
|
}
|
|
|
|
select {
|
|
case <-confNtfn.Event.Done:
|
|
default:
|
|
t.Fatal("expected to receive done notification for confirmation")
|
|
}
|
|
|
|
select {
|
|
case <-spendNtfn.Event.Done:
|
|
default:
|
|
t.Fatal("expected to receive done notification for spend")
|
|
}
|
|
}
|
|
|
|
// TestTxNotifierTearDown ensures that the TxNotifier properly alerts clients
|
|
// that it is shutting down and will be unable to deliver notifications.
|
|
func TestTxNotifierTearDown(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
hintCache := newMockHintCache()
|
|
n := chainntnfs.NewTxNotifier(
|
|
10, chainntnfs.ReorgSafetyLimit, hintCache, hintCache,
|
|
)
|
|
|
|
// To begin the test, we'll register for a confirmation and spend
|
|
// notification.
|
|
confNtfn, err := n.RegisterConf(&chainntnfs.ZeroHash, testRawScript, 1, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register conf ntfn: %v", err)
|
|
}
|
|
spendNtfn, err := n.RegisterSpend(&chainntnfs.ZeroOutPoint, testRawScript, 1)
|
|
if err != nil {
|
|
t.Fatalf("unable to register spend ntfn: %v", err)
|
|
}
|
|
|
|
// With the notifications registered, we'll now tear down the notifier.
|
|
// The notification channels should be closed for notifications, whether
|
|
// they have been dispatched or not, so we should not expect to receive
|
|
// any more updates.
|
|
n.TearDown()
|
|
|
|
select {
|
|
case _, ok := <-confNtfn.Event.Confirmed:
|
|
if ok {
|
|
t.Fatal("expected closed Confirmed channel for conf ntfn")
|
|
}
|
|
case _, ok := <-confNtfn.Event.Updates:
|
|
if ok {
|
|
t.Fatal("expected closed Updates channel for conf ntfn")
|
|
}
|
|
case _, ok := <-confNtfn.Event.NegativeConf:
|
|
if ok {
|
|
t.Fatal("expected closed NegativeConf channel for conf ntfn")
|
|
}
|
|
case _, ok := <-spendNtfn.Event.Spend:
|
|
if ok {
|
|
t.Fatal("expected closed Spend channel for spend ntfn")
|
|
}
|
|
case _, ok := <-spendNtfn.Event.Reorg:
|
|
if ok {
|
|
t.Fatalf("expected closed Reorg channel for spend ntfn")
|
|
}
|
|
default:
|
|
t.Fatalf("expected closed notification channels for all ntfns")
|
|
}
|
|
|
|
// Now that the notifier is torn down, we should no longer be able to
|
|
// register notification requests.
|
|
_, err = n.RegisterConf(&chainntnfs.ZeroHash, testRawScript, 1, 1)
|
|
if err == nil {
|
|
t.Fatal("expected confirmation registration to fail")
|
|
}
|
|
_, err = n.RegisterSpend(&chainntnfs.ZeroOutPoint, testRawScript, 1)
|
|
if err == nil {
|
|
t.Fatal("expected spend registration to fail")
|
|
}
|
|
}
|
|
|
|
func assertConfDetails(t *testing.T, result, expected *chainntnfs.TxConfirmation) {
|
|
t.Helper()
|
|
|
|
if result.BlockHeight != expected.BlockHeight {
|
|
t.Fatalf("Incorrect block height in confirmation details: "+
|
|
"expected %d, got %d", expected.BlockHeight,
|
|
result.BlockHeight)
|
|
}
|
|
if !result.BlockHash.IsEqual(expected.BlockHash) {
|
|
t.Fatalf("Incorrect block hash in confirmation details: "+
|
|
"expected %d, got %d", expected.BlockHash,
|
|
result.BlockHash)
|
|
}
|
|
if result.TxIndex != expected.TxIndex {
|
|
t.Fatalf("Incorrect tx index in confirmation details: "+
|
|
"expected %d, got %d", expected.TxIndex, result.TxIndex)
|
|
}
|
|
if result.Tx.TxHash() != expected.Tx.TxHash() {
|
|
t.Fatalf("expected tx hash %v, got %v", expected.Tx.TxHash(),
|
|
result.Tx.TxHash())
|
|
}
|
|
}
|
|
|
|
func assertSpendDetails(t *testing.T, result, expected *chainntnfs.SpendDetail) {
|
|
t.Helper()
|
|
|
|
if *result.SpentOutPoint != *expected.SpentOutPoint {
|
|
t.Fatalf("expected spent outpoint %v, got %v",
|
|
expected.SpentOutPoint, result.SpentOutPoint)
|
|
}
|
|
if !result.SpenderTxHash.IsEqual(expected.SpenderTxHash) {
|
|
t.Fatalf("expected spender tx hash %v, got %v",
|
|
expected.SpenderTxHash, result.SpenderTxHash)
|
|
}
|
|
if result.SpenderInputIndex != expected.SpenderInputIndex {
|
|
t.Fatalf("expected spender input index %d, got %d",
|
|
expected.SpenderInputIndex, result.SpenderInputIndex)
|
|
}
|
|
if result.SpendingHeight != expected.SpendingHeight {
|
|
t.Fatalf("expected spending height %d, got %d",
|
|
expected.SpendingHeight, result.SpendingHeight)
|
|
}
|
|
}
|