2017-05-11 03:14:03 +03:00
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package chainview
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import (
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"bytes"
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"fmt"
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2017-05-22 04:35:58 +03:00
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"io/ioutil"
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2017-11-10 03:30:20 +03:00
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"math/rand"
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2017-05-22 04:35:58 +03:00
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"os"
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2017-11-10 03:30:20 +03:00
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"os/exec"
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2017-05-22 04:35:58 +03:00
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"path/filepath"
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"runtime"
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2017-05-11 03:14:03 +03:00
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"testing"
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"time"
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2018-06-05 04:34:16 +03:00
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"github.com/btcsuite/btcd/btcec"
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2018-07-17 02:50:47 +03:00
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"github.com/btcsuite/btcd/btcjson"
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2018-06-05 04:34:16 +03:00
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"github.com/btcsuite/btcd/chaincfg"
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"github.com/btcsuite/btcd/chaincfg/chainhash"
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"github.com/btcsuite/btcd/integration/rpctest"
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"github.com/btcsuite/btcd/rpcclient"
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"github.com/btcsuite/btcd/txscript"
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"github.com/btcsuite/btcd/wire"
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"github.com/btcsuite/btcutil"
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2018-07-17 02:50:47 +03:00
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"github.com/btcsuite/btcwallet/chain"
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2018-06-05 04:34:16 +03:00
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"github.com/btcsuite/btcwallet/walletdb"
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_ "github.com/btcsuite/btcwallet/walletdb/bdb" // Required to register the boltdb walletdb implementation.
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2018-07-17 02:50:47 +03:00
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"github.com/lightninglabs/neutrino"
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"github.com/lightningnetwork/lnd/channeldb"
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2017-05-11 03:14:03 +03:00
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)
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var (
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2017-11-10 03:30:20 +03:00
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netParams = &chaincfg.RegressionNetParams
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2017-05-11 03:14:03 +03:00
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testPrivKey = []byte{
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0x81, 0xb6, 0x37, 0xd8, 0xfc, 0xd2, 0xc6, 0xda,
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0x63, 0x59, 0xe6, 0x96, 0x31, 0x13, 0xa1, 0x17,
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0xd, 0xe7, 0x95, 0xe4, 0xb7, 0x25, 0xb8, 0x4d,
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0x1e, 0xb, 0x4c, 0xfd, 0x9e, 0xc5, 0x8c, 0xe9,
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}
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privKey, pubKey = btcec.PrivKeyFromBytes(btcec.S256(), testPrivKey)
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addrPk, _ = btcutil.NewAddressPubKey(pubKey.SerializeCompressed(),
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netParams)
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testAddr = addrPk.AddressPubKeyHash()
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testScript, _ = txscript.PayToAddrScript(testAddr)
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)
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2017-11-10 03:30:20 +03:00
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func waitForMempoolTx(r *rpctest.Harness, txid *chainhash.Hash) error {
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var found bool
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var tx *btcutil.Tx
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var err error
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timeout := time.After(10 * time.Second)
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for !found {
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// Do a short wait
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select {
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case <-timeout:
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return fmt.Errorf("timeout after 10s")
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default:
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}
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time.Sleep(100 * time.Millisecond)
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// Check for the harness' knowledge of the txid
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tx, err = r.Node.GetRawTransaction(txid)
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if err != nil {
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switch e := err.(type) {
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case *btcjson.RPCError:
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if e.Code == btcjson.ErrRPCNoTxInfo {
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continue
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}
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default:
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}
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return err
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}
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if tx != nil && tx.MsgTx().TxHash() == *txid {
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found = true
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}
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}
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return nil
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}
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2017-05-11 03:58:42 +03:00
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func getTestTXID(miner *rpctest.Harness) (*chainhash.Hash, error) {
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2017-05-11 03:14:03 +03:00
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script, err := txscript.PayToAddrScript(testAddr)
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if err != nil {
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return nil, err
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}
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outputs := []*wire.TxOut{
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{
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Value: 2e8,
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PkScript: script,
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},
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}
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2018-07-28 04:20:58 +03:00
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return miner.SendOutputs(outputs, 2500)
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2017-05-11 03:14:03 +03:00
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}
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func locateOutput(tx *wire.MsgTx, script []byte) (*wire.OutPoint, *wire.TxOut, error) {
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for i, txOut := range tx.TxOut {
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if bytes.Equal(txOut.PkScript, script) {
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return &wire.OutPoint{
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Hash: tx.TxHash(),
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Index: uint32(i),
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}, txOut, nil
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}
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}
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return nil, nil, fmt.Errorf("unable to find output")
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}
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func craftSpendTransaction(outpoint wire.OutPoint, payScript []byte) (*wire.MsgTx, error) {
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spendingTx := wire.NewMsgTx(1)
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spendingTx.AddTxIn(&wire.TxIn{
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PreviousOutPoint: outpoint,
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})
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spendingTx.AddTxOut(&wire.TxOut{
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Value: 1e8,
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PkScript: payScript,
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})
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sigScript, err := txscript.SignatureScript(spendingTx, 0, payScript,
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txscript.SigHashAll, privKey, true)
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if err != nil {
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return nil, err
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}
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spendingTx.TxIn[0].SignatureScript = sigScript
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return spendingTx, nil
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}
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func assertFilteredBlock(t *testing.T, fb *FilteredBlock, expectedHeight int32,
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expectedHash *chainhash.Hash, txns []*chainhash.Hash) {
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2017-05-22 04:30:55 +03:00
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_, _, line, _ := runtime.Caller(1)
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2017-05-11 03:14:03 +03:00
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if fb.Height != uint32(expectedHeight) {
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2017-05-22 04:30:55 +03:00
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t.Fatalf("line %v: block height mismatch: expected %v, got %v",
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line, expectedHeight, fb.Height)
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2017-05-11 03:14:03 +03:00
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}
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if !bytes.Equal(fb.Hash[:], expectedHash[:]) {
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2017-05-22 04:30:55 +03:00
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t.Fatalf("line %v: block hash mismatch: expected %v, got %v",
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line, expectedHash, fb.Hash)
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2017-05-11 03:14:03 +03:00
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}
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if len(fb.Transactions) != len(txns) {
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2017-05-22 04:30:55 +03:00
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t.Fatalf("line %v: expected %v transaction in filtered block, instead "+
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"have %v", line, len(txns), len(fb.Transactions))
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2017-05-11 03:14:03 +03:00
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}
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expectedTxids := make(map[chainhash.Hash]struct{})
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for _, txn := range txns {
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expectedTxids[*txn] = struct{}{}
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}
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for _, tx := range fb.Transactions {
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txid := tx.TxHash()
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delete(expectedTxids, txid)
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}
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if len(expectedTxids) != 0 {
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2017-05-22 04:30:55 +03:00
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t.Fatalf("line %v: missing txids: %v", line, expectedTxids)
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2017-05-11 03:14:03 +03:00
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}
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}
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func testFilterBlockNotifications(node *rpctest.Harness,
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2017-10-02 18:53:41 +03:00
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chainView FilteredChainView, chainViewInit chainViewInitFunc,
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t *testing.T) {
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2017-05-11 03:14:03 +03:00
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// To start the test, we'll create to fresh outputs paying to the
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// private key that we generated above.
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2017-05-11 03:58:42 +03:00
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txid1, err := getTestTXID(node)
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2017-05-11 03:14:03 +03:00
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if err != nil {
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2017-11-10 03:30:20 +03:00
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t.Fatalf("unable to get test txid: %v", err)
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}
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err = waitForMempoolTx(node, txid1)
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if err != nil {
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t.Fatalf("unable to get test txid in mempool: %v", err)
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2017-05-11 03:14:03 +03:00
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}
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2017-05-11 03:58:42 +03:00
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txid2, err := getTestTXID(node)
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2017-05-11 03:14:03 +03:00
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if err != nil {
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2017-11-10 03:30:20 +03:00
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t.Fatalf("unable to get test txid: %v", err)
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}
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err = waitForMempoolTx(node, txid2)
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if err != nil {
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t.Fatalf("unable to get test txid in mempool: %v", err)
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2017-05-11 03:14:03 +03:00
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}
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blockChan := chainView.FilteredBlocks()
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// Next we'll mine a block confirming the output generated above.
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newBlockHashes, err := node.Node.Generate(1)
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if err != nil {
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t.Fatalf("unable to generate block: %v", err)
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}
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_, currentHeight, err := node.Node.GetBestBlock()
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if err != nil {
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t.Fatalf("unable to get current height: %v", err)
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}
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// We should get an update, however it shouldn't yet contain any
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// filtered transaction as the filter hasn't been update.
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select {
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case filteredBlock := <-blockChan:
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assertFilteredBlock(t, filteredBlock, currentHeight,
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newBlockHashes[0], []*chainhash.Hash{})
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2017-06-06 22:01:15 +03:00
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case <-time.After(time.Second * 20):
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2017-05-11 03:14:03 +03:00
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t.Fatalf("filtered block notification didn't arrive")
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}
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// Now that the block has been mined, we'll fetch the two transactions
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// so we can add them to the filter, and also craft transaction
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// spending the outputs we created.
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tx1, err := node.Node.GetRawTransaction(txid1)
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if err != nil {
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t.Fatalf("unable to fetch transaction: %v", err)
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}
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tx2, err := node.Node.GetRawTransaction(txid2)
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if err != nil {
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t.Fatalf("unable to fetch transaction: %v", err)
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}
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targetScript, err := txscript.PayToAddrScript(testAddr)
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if err != nil {
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t.Fatalf("unable to create target output: %v", err)
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}
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// Next, we'll locate the two outputs generated above that pay to use
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// so we can properly add them to the filter.
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outPoint1, _, err := locateOutput(tx1.MsgTx(), targetScript)
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if err != nil {
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t.Fatalf("unable to find output: %v", err)
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}
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outPoint2, _, err := locateOutput(tx2.MsgTx(), targetScript)
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if err != nil {
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t.Fatalf("unable to find output: %v", err)
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}
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_, currentHeight, err = node.Node.GetBestBlock()
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if err != nil {
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t.Fatalf("unable to get current height: %v", err)
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}
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2018-07-18 05:12:28 +03:00
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// Now we'll add both outpoints to the current filter.
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filter := []channeldb.EdgePoint{
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2018-08-03 23:28:02 +03:00
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{FundingPkScript: targetScript, OutPoint: *outPoint1},
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{FundingPkScript: targetScript, OutPoint: *outPoint2},
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2018-07-18 05:12:28 +03:00
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}
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2017-05-11 03:14:03 +03:00
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err = chainView.UpdateFilter(filter, uint32(currentHeight))
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if err != nil {
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t.Fatalf("unable to update filter: %v", err)
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}
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// With the filter updated, we'll now create two transaction spending
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// the outputs we created.
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spendingTx1, err := craftSpendTransaction(*outPoint1, targetScript)
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if err != nil {
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t.Fatalf("unable to create spending tx: %v", err)
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}
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spendingTx2, err := craftSpendTransaction(*outPoint2, targetScript)
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if err != nil {
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t.Fatalf("unable to create spending tx: %v", err)
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}
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// Now we'll broadcast the first spending transaction and also mine a
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// block which should include it.
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spendTxid1, err := node.Node.SendRawTransaction(spendingTx1, true)
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if err != nil {
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t.Fatalf("unable to broadcast transaction: %v", err)
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}
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2017-11-10 03:30:20 +03:00
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err = waitForMempoolTx(node, spendTxid1)
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if err != nil {
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t.Fatalf("unable to get spending txid in mempool: %v", err)
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}
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2017-05-11 03:14:03 +03:00
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newBlockHashes, err = node.Node.Generate(1)
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if err != nil {
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t.Fatalf("unable to generate block: %v", err)
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}
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// We should receive a notification over the channel. The notification
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// should correspond to the current block height and have that single
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// filtered transaction.
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select {
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case filteredBlock := <-blockChan:
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assertFilteredBlock(t, filteredBlock, currentHeight+1,
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newBlockHashes[0], []*chainhash.Hash{spendTxid1})
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2017-06-06 22:01:15 +03:00
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case <-time.After(time.Second * 20):
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2017-05-11 03:14:03 +03:00
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t.Fatalf("filtered block notification didn't arrive")
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}
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// Next, mine the second transaction which spends the second output.
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// This should also generate a notification.
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spendTxid2, err := node.Node.SendRawTransaction(spendingTx2, true)
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if err != nil {
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t.Fatalf("unable to broadcast transaction: %v", err)
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}
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2017-11-10 03:30:20 +03:00
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err = waitForMempoolTx(node, spendTxid2)
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if err != nil {
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t.Fatalf("unable to get spending txid in mempool: %v", err)
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}
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2017-05-11 03:14:03 +03:00
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newBlockHashes, err = node.Node.Generate(1)
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if err != nil {
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t.Fatalf("unable to generate block: %v", err)
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}
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select {
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case filteredBlock := <-blockChan:
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assertFilteredBlock(t, filteredBlock, currentHeight+2,
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newBlockHashes[0], []*chainhash.Hash{spendTxid2})
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2017-06-06 22:01:15 +03:00
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case <-time.After(time.Second * 20):
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2017-05-11 03:14:03 +03:00
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t.Fatalf("filtered block notification didn't arrive")
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}
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}
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2017-10-02 18:53:41 +03:00
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func testUpdateFilterBackTrack(node *rpctest.Harness,
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chainView FilteredChainView, chainViewInit chainViewInitFunc,
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2017-05-11 03:14:03 +03:00
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t *testing.T) {
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// To start, we'll create a fresh output paying to the height generated
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// above.
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2017-05-11 03:58:42 +03:00
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txid, err := getTestTXID(node)
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2017-05-11 03:14:03 +03:00
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if err != nil {
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t.Fatalf("unable to get test txid")
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}
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2017-11-10 03:30:20 +03:00
|
|
|
err = waitForMempoolTx(node, txid)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get test txid in mempool: %v", err)
|
|
|
|
}
|
2017-05-11 03:14:03 +03:00
|
|
|
|
|
|
|
// Next we'll mine a block confirming the output generated above.
|
|
|
|
initBlockHashes, err := node.Node.Generate(1)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to generate block: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
blockChan := chainView.FilteredBlocks()
|
|
|
|
|
|
|
|
_, currentHeight, err := node.Node.GetBestBlock()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get current height: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// Consume the notification sent which contains an empty filtered
|
|
|
|
// block.
|
|
|
|
select {
|
|
|
|
case filteredBlock := <-blockChan:
|
|
|
|
assertFilteredBlock(t, filteredBlock, currentHeight,
|
|
|
|
initBlockHashes[0], []*chainhash.Hash{})
|
2017-06-06 22:01:15 +03:00
|
|
|
case <-time.After(time.Second * 20):
|
2017-05-11 03:14:03 +03:00
|
|
|
t.Fatalf("filtered block notification didn't arrive")
|
|
|
|
}
|
|
|
|
|
|
|
|
// Next, create a transaction which spends the output created above,
|
|
|
|
// mining the spend into a block.
|
|
|
|
tx, err := node.Node.GetRawTransaction(txid)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to fetch transaction: %v", err)
|
|
|
|
}
|
|
|
|
outPoint, _, err := locateOutput(tx.MsgTx(), testScript)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to find output: %v", err)
|
|
|
|
}
|
|
|
|
spendingTx, err := craftSpendTransaction(*outPoint, testScript)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to create spending tx: %v", err)
|
|
|
|
}
|
|
|
|
spendTxid, err := node.Node.SendRawTransaction(spendingTx, true)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to broadcast transaction: %v", err)
|
|
|
|
}
|
2017-11-10 03:30:20 +03:00
|
|
|
err = waitForMempoolTx(node, spendTxid)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get spending txid in mempool: %v", err)
|
|
|
|
}
|
2017-05-11 03:14:03 +03:00
|
|
|
newBlockHashes, err := node.Node.Generate(1)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to generate block: %v", err)
|
|
|
|
}
|
|
|
|
|
2018-02-07 06:11:11 +03:00
|
|
|
// We should have received another empty filtered block notification.
|
2017-05-11 03:14:03 +03:00
|
|
|
select {
|
|
|
|
case filteredBlock := <-blockChan:
|
|
|
|
assertFilteredBlock(t, filteredBlock, currentHeight+1,
|
|
|
|
newBlockHashes[0], []*chainhash.Hash{})
|
2017-06-06 22:01:15 +03:00
|
|
|
case <-time.After(time.Second * 20):
|
2017-05-11 03:14:03 +03:00
|
|
|
t.Fatalf("filtered block notification didn't arrive")
|
|
|
|
}
|
|
|
|
|
|
|
|
// After the block has been mined+notified we'll update the filter with
|
|
|
|
// a _prior_ height so a "rewind" occurs.
|
2018-07-18 05:12:28 +03:00
|
|
|
filter := []channeldb.EdgePoint{
|
2018-08-03 23:28:02 +03:00
|
|
|
{FundingPkScript: testScript, OutPoint: *outPoint},
|
2018-07-18 05:12:28 +03:00
|
|
|
}
|
2017-05-11 03:14:03 +03:00
|
|
|
err = chainView.UpdateFilter(filter, uint32(currentHeight))
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to update filter: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// We should now receive a fresh filtered block notification that
|
|
|
|
// includes the transaction spend we included above.
|
|
|
|
select {
|
|
|
|
case filteredBlock := <-blockChan:
|
|
|
|
assertFilteredBlock(t, filteredBlock, currentHeight+1,
|
|
|
|
newBlockHashes[0], []*chainhash.Hash{spendTxid})
|
2017-06-06 22:01:15 +03:00
|
|
|
case <-time.After(time.Second * 20):
|
2017-05-11 03:14:03 +03:00
|
|
|
t.Fatalf("filtered block notification didn't arrive")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func testFilterSingleBlock(node *rpctest.Harness, chainView FilteredChainView,
|
2017-10-02 18:53:41 +03:00
|
|
|
chainViewInit chainViewInitFunc, t *testing.T) {
|
2017-05-11 03:14:03 +03:00
|
|
|
|
|
|
|
// In this test, we'll test the manual filtration of blocks, which can
|
|
|
|
// be used by clients to manually rescan their sub-set of the UTXO set.
|
|
|
|
|
|
|
|
// First, we'll create a block that includes two outputs that we're
|
|
|
|
// able to spend with the private key generated above.
|
2017-05-11 03:58:42 +03:00
|
|
|
txid1, err := getTestTXID(node)
|
2017-05-11 03:14:03 +03:00
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get test txid")
|
|
|
|
}
|
2017-11-10 03:30:20 +03:00
|
|
|
err = waitForMempoolTx(node, txid1)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get test txid in mempool: %v", err)
|
|
|
|
}
|
2017-05-11 03:58:42 +03:00
|
|
|
txid2, err := getTestTXID(node)
|
2017-05-11 03:14:03 +03:00
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get test txid")
|
|
|
|
}
|
2017-11-10 03:30:20 +03:00
|
|
|
err = waitForMempoolTx(node, txid2)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get test txid in mempool: %v", err)
|
|
|
|
}
|
2017-05-11 03:14:03 +03:00
|
|
|
|
|
|
|
blockChan := chainView.FilteredBlocks()
|
|
|
|
|
|
|
|
// Next we'll mine a block confirming the output generated above.
|
|
|
|
newBlockHashes, err := node.Node.Generate(1)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to generate block: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
_, currentHeight, err := node.Node.GetBestBlock()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get current height: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// We should get an update, however it shouldn't yet contain any
|
2017-05-22 04:30:55 +03:00
|
|
|
// filtered transaction as the filter hasn't been updated.
|
2017-05-11 03:14:03 +03:00
|
|
|
select {
|
|
|
|
case filteredBlock := <-blockChan:
|
|
|
|
assertFilteredBlock(t, filteredBlock, currentHeight,
|
|
|
|
newBlockHashes[0], []*chainhash.Hash{})
|
2017-06-06 22:01:15 +03:00
|
|
|
case <-time.After(time.Second * 20):
|
2017-05-11 03:14:03 +03:00
|
|
|
t.Fatalf("filtered block notification didn't arrive")
|
|
|
|
}
|
|
|
|
|
|
|
|
tx1, err := node.Node.GetRawTransaction(txid1)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to fetch transaction: %v", err)
|
|
|
|
}
|
|
|
|
tx2, err := node.Node.GetRawTransaction(txid2)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to fetch transaction: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// Next, we'll create a block that includes two transactions, each
|
|
|
|
// which spend one of the outputs created.
|
|
|
|
outPoint1, _, err := locateOutput(tx1.MsgTx(), testScript)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to find output: %v", err)
|
|
|
|
}
|
|
|
|
outPoint2, _, err := locateOutput(tx2.MsgTx(), testScript)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to find output: %v", err)
|
|
|
|
}
|
|
|
|
spendingTx1, err := craftSpendTransaction(*outPoint1, testScript)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to create spending tx: %v", err)
|
|
|
|
}
|
|
|
|
spendingTx2, err := craftSpendTransaction(*outPoint2, testScript)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to create spending tx: %v", err)
|
|
|
|
}
|
|
|
|
txns := []*btcutil.Tx{btcutil.NewTx(spendingTx1), btcutil.NewTx(spendingTx2)}
|
|
|
|
block, err := node.GenerateAndSubmitBlock(txns, 11, time.Time{})
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to generate block: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
select {
|
|
|
|
case filteredBlock := <-blockChan:
|
|
|
|
assertFilteredBlock(t, filteredBlock, currentHeight+1,
|
|
|
|
block.Hash(), []*chainhash.Hash{})
|
2017-06-06 22:01:15 +03:00
|
|
|
case <-time.After(time.Second * 20):
|
2017-05-11 03:14:03 +03:00
|
|
|
t.Fatalf("filtered block notification didn't arrive")
|
|
|
|
}
|
|
|
|
|
|
|
|
_, currentHeight, err = node.Node.GetBestBlock()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get current height: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// Now we'll manually trigger filtering the block generated above.
|
|
|
|
// First, we'll add the two outpoints to our filter.
|
2018-07-18 05:12:28 +03:00
|
|
|
filter := []channeldb.EdgePoint{
|
2018-08-03 23:28:02 +03:00
|
|
|
{FundingPkScript: testScript, OutPoint: *outPoint1},
|
|
|
|
{FundingPkScript: testScript, OutPoint: *outPoint2},
|
2018-07-18 05:12:28 +03:00
|
|
|
}
|
2017-05-11 03:14:03 +03:00
|
|
|
err = chainView.UpdateFilter(filter, uint32(currentHeight))
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to update filter: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// We set the filter with the current height, so we shouldn't get any
|
|
|
|
// notifications.
|
|
|
|
select {
|
|
|
|
case <-blockChan:
|
|
|
|
t.Fatalf("got filter notification, but shouldn't have")
|
|
|
|
default:
|
|
|
|
}
|
|
|
|
|
|
|
|
// Now we'll manually rescan that past block. This should include two
|
|
|
|
// filtered transactions, the spending transactions we created above.
|
|
|
|
filteredBlock, err := chainView.FilterBlock(block.Hash())
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to filter block: %v", err)
|
|
|
|
}
|
|
|
|
txn1, txn2 := spendingTx1.TxHash(), spendingTx2.TxHash()
|
|
|
|
expectedTxns := []*chainhash.Hash{&txn1, &txn2}
|
|
|
|
assertFilteredBlock(t, filteredBlock, currentHeight, block.Hash(),
|
|
|
|
expectedTxns)
|
|
|
|
}
|
|
|
|
|
2017-10-02 18:53:41 +03:00
|
|
|
// testFilterBlockDisconnected triggers a reorg all the way back to genesis,
|
|
|
|
// and a small 5 block reorg, ensuring the chainView notifies about
|
|
|
|
// disconnected and connected blocks in the order we expect.
|
|
|
|
func testFilterBlockDisconnected(node *rpctest.Harness,
|
|
|
|
chainView FilteredChainView, chainViewInit chainViewInitFunc,
|
|
|
|
t *testing.T) {
|
|
|
|
|
|
|
|
// Create a node that has a shorter chain than the main chain, so we
|
|
|
|
// can trigger a reorg.
|
2020-12-03 13:30:22 +03:00
|
|
|
reorgNode, err := rpctest.New(netParams, nil, []string{"--txindex"}, "")
|
2017-10-02 18:53:41 +03:00
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to create mining node: %v", err)
|
|
|
|
}
|
|
|
|
defer reorgNode.TearDown()
|
|
|
|
|
|
|
|
// This node's chain will be 105 blocks.
|
|
|
|
if err := reorgNode.SetUp(true, 5); err != nil {
|
|
|
|
t.Fatalf("unable to set up mining node: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// Init a chain view that has this node as its block source.
|
|
|
|
cleanUpFunc, reorgView, err := chainViewInit(reorgNode.RPCConfig(),
|
|
|
|
reorgNode.P2PAddress())
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to create chain view: %v", err)
|
|
|
|
}
|
|
|
|
defer func() {
|
|
|
|
if cleanUpFunc != nil {
|
|
|
|
cleanUpFunc()
|
|
|
|
}
|
|
|
|
}()
|
|
|
|
|
|
|
|
if err = reorgView.Start(); err != nil {
|
|
|
|
t.Fatalf("unable to start btcd chain view: %v", err)
|
|
|
|
}
|
|
|
|
defer reorgView.Stop()
|
|
|
|
|
|
|
|
newBlocks := reorgView.FilteredBlocks()
|
|
|
|
disconnectedBlocks := reorgView.DisconnectedBlocks()
|
|
|
|
|
2018-08-01 04:46:13 +03:00
|
|
|
// If this the neutrino backend, then we'll give it some time to catch
|
|
|
|
// up, as it's a bit slower to consume new blocks compared to the RPC
|
|
|
|
// backends.
|
|
|
|
if _, ok := reorgView.(*CfFilteredChainView); ok {
|
|
|
|
time.Sleep(time.Second * 3)
|
|
|
|
}
|
|
|
|
|
2017-10-02 18:53:41 +03:00
|
|
|
_, oldHeight, err := reorgNode.Node.GetBestBlock()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get current height: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// Now connect the node with the short chain to the main node, and wait
|
|
|
|
// for their chains to synchronize. The short chain will be reorged all
|
|
|
|
// the way back to genesis.
|
|
|
|
if err := rpctest.ConnectNode(reorgNode, node); err != nil {
|
|
|
|
t.Fatalf("unable to connect harnesses: %v", err)
|
|
|
|
}
|
|
|
|
nodeSlice := []*rpctest.Harness{node, reorgNode}
|
|
|
|
if err := rpctest.JoinNodes(nodeSlice, rpctest.Blocks); err != nil {
|
|
|
|
t.Fatalf("unable to join node on blocks: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
_, newHeight, err := reorgNode.Node.GetBestBlock()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get current height: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// We should be getting oldHeight number of blocks marked as
|
|
|
|
// stale/disconnected. We expect to first get all stale blocks,
|
|
|
|
// then the new blocks. We also ensure a strict ordering.
|
|
|
|
for i := int32(0); i < oldHeight+newHeight; i++ {
|
|
|
|
select {
|
|
|
|
case block := <-newBlocks:
|
|
|
|
if i < oldHeight {
|
|
|
|
t.Fatalf("did not expect to get new block "+
|
2018-08-01 04:46:13 +03:00
|
|
|
"in iteration %d, old height: %v", i,
|
|
|
|
oldHeight)
|
2017-10-02 18:53:41 +03:00
|
|
|
}
|
|
|
|
expectedHeight := uint32(i - oldHeight + 1)
|
|
|
|
if block.Height != expectedHeight {
|
|
|
|
t.Fatalf("expected to receive connected "+
|
|
|
|
"block at height %d, instead got at %d",
|
|
|
|
expectedHeight, block.Height)
|
|
|
|
}
|
|
|
|
case block := <-disconnectedBlocks:
|
|
|
|
if i >= oldHeight {
|
|
|
|
t.Fatalf("did not expect to get stale block "+
|
|
|
|
"in iteration %d", i)
|
|
|
|
}
|
|
|
|
expectedHeight := uint32(oldHeight - i)
|
|
|
|
if block.Height != expectedHeight {
|
2018-02-07 06:11:11 +03:00
|
|
|
t.Fatalf("expected to receive disconnected "+
|
2017-10-02 18:53:41 +03:00
|
|
|
"block at height %d, instead got at %d",
|
|
|
|
expectedHeight, block.Height)
|
|
|
|
}
|
|
|
|
case <-time.After(10 * time.Second):
|
|
|
|
t.Fatalf("timeout waiting for block")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Now we trigger a small reorg, by disconnecting the nodes, mining
|
|
|
|
// a few blocks on each, then connecting them again.
|
|
|
|
peers, err := reorgNode.Node.GetPeerInfo()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get peer info: %v", err)
|
|
|
|
}
|
|
|
|
numPeers := len(peers)
|
|
|
|
|
|
|
|
// Disconnect the nodes.
|
|
|
|
err = reorgNode.Node.AddNode(node.P2PAddress(), rpcclient.ANRemove)
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to disconnect mining nodes: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// Wait for disconnection
|
|
|
|
for {
|
|
|
|
peers, err = reorgNode.Node.GetPeerInfo()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get peer info: %v", err)
|
|
|
|
}
|
|
|
|
if len(peers) < numPeers {
|
|
|
|
break
|
|
|
|
}
|
|
|
|
time.Sleep(100 * time.Millisecond)
|
|
|
|
}
|
|
|
|
|
|
|
|
// Mine 10 blocks on the main chain, 5 on the chain that will be
|
|
|
|
// reorged out,
|
|
|
|
node.Node.Generate(10)
|
|
|
|
reorgNode.Node.Generate(5)
|
|
|
|
|
|
|
|
// 5 new blocks should get notified.
|
|
|
|
for i := uint32(0); i < 5; i++ {
|
|
|
|
select {
|
|
|
|
case block := <-newBlocks:
|
|
|
|
expectedHeight := uint32(newHeight) + i + 1
|
|
|
|
if block.Height != expectedHeight {
|
|
|
|
t.Fatalf("expected to receive connected "+
|
|
|
|
"block at height %d, instead got at %d",
|
|
|
|
expectedHeight, block.Height)
|
|
|
|
}
|
|
|
|
case <-disconnectedBlocks:
|
|
|
|
t.Fatalf("did not expect to get stale block "+
|
|
|
|
"in iteration %d", i)
|
|
|
|
case <-time.After(10 * time.Second):
|
|
|
|
t.Fatalf("did not get connected block")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
_, oldHeight, err = reorgNode.Node.GetBestBlock()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get current height: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// Now connect the two nodes, and wait for their chains to sync up.
|
|
|
|
if err := rpctest.ConnectNode(reorgNode, node); err != nil {
|
|
|
|
t.Fatalf("unable to connect harnesses: %v", err)
|
|
|
|
}
|
|
|
|
if err := rpctest.JoinNodes(nodeSlice, rpctest.Blocks); err != nil {
|
|
|
|
t.Fatalf("unable to join node on blocks: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
_, newHeight, err = reorgNode.Node.GetBestBlock()
|
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to get current height: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// We should get 5 disconnected, 10 connected blocks.
|
|
|
|
for i := uint32(0); i < 15; i++ {
|
|
|
|
select {
|
|
|
|
case block := <-newBlocks:
|
|
|
|
if i < 5 {
|
|
|
|
t.Fatalf("did not expect to get new block "+
|
|
|
|
"in iteration %d", i)
|
|
|
|
}
|
|
|
|
// The expected height for the connected block will be
|
|
|
|
// oldHeight - 5 (the 5 disconnected blocks) + (i-5)
|
|
|
|
// (subtract 5 since the 5 first iterations consumed
|
|
|
|
// disconnected blocks) + 1
|
|
|
|
expectedHeight := uint32(oldHeight) - 9 + i
|
|
|
|
if block.Height != expectedHeight {
|
|
|
|
t.Fatalf("expected to receive connected "+
|
|
|
|
"block at height %d, instead got at %d",
|
|
|
|
expectedHeight, block.Height)
|
|
|
|
}
|
|
|
|
case block := <-disconnectedBlocks:
|
|
|
|
if i >= 5 {
|
|
|
|
t.Fatalf("did not expect to get stale block "+
|
|
|
|
"in iteration %d", i)
|
|
|
|
}
|
|
|
|
expectedHeight := uint32(oldHeight) - i
|
|
|
|
if block.Height != expectedHeight {
|
|
|
|
t.Fatalf("expected to receive disconnected "+
|
|
|
|
"block at height %d, instead got at %d",
|
|
|
|
expectedHeight, block.Height)
|
|
|
|
}
|
|
|
|
case <-time.After(10 * time.Second):
|
|
|
|
t.Fatalf("did not get disconnected block")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Time for db access to finish between testcases.
|
|
|
|
time.Sleep(time.Millisecond * 500)
|
|
|
|
}
|
|
|
|
|
|
|
|
type chainViewInitFunc func(rpcInfo rpcclient.ConnConfig,
|
|
|
|
p2pAddr string) (func(), FilteredChainView, error)
|
|
|
|
|
2017-07-05 01:53:54 +03:00
|
|
|
type testCase struct {
|
|
|
|
name string
|
2017-10-02 18:53:41 +03:00
|
|
|
test func(*rpctest.Harness, FilteredChainView, chainViewInitFunc,
|
|
|
|
*testing.T)
|
2017-07-05 01:53:54 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
var chainViewTests = []testCase{
|
|
|
|
{
|
|
|
|
name: "filtered block ntfns",
|
|
|
|
test: testFilterBlockNotifications,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
name: "update filter back track",
|
|
|
|
test: testUpdateFilterBackTrack,
|
|
|
|
},
|
|
|
|
{
|
2017-11-10 03:30:20 +03:00
|
|
|
name: "filter single block",
|
2017-07-05 01:53:54 +03:00
|
|
|
test: testFilterSingleBlock,
|
|
|
|
},
|
2017-10-02 18:53:41 +03:00
|
|
|
{
|
|
|
|
name: "filter block disconnected",
|
|
|
|
test: testFilterBlockDisconnected,
|
|
|
|
},
|
2017-05-11 03:14:03 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
var interfaceImpls = []struct {
|
|
|
|
name string
|
2017-10-02 18:53:41 +03:00
|
|
|
chainViewInit chainViewInitFunc
|
2017-05-11 03:14:03 +03:00
|
|
|
}{
|
2017-11-10 03:30:20 +03:00
|
|
|
{
|
|
|
|
name: "bitcoind_zmq",
|
|
|
|
chainViewInit: func(_ rpcclient.ConnConfig, p2pAddr string) (func(), FilteredChainView, error) {
|
|
|
|
// Start a bitcoind instance.
|
|
|
|
tempBitcoindDir, err := ioutil.TempDir("", "bitcoind")
|
|
|
|
if err != nil {
|
|
|
|
return nil, nil, err
|
|
|
|
}
|
2018-07-17 02:50:47 +03:00
|
|
|
zmqBlockHost := "ipc:///" + tempBitcoindDir + "/blocks.socket"
|
|
|
|
zmqTxHost := "ipc:///" + tempBitcoindDir + "/tx.socket"
|
2017-11-10 03:30:20 +03:00
|
|
|
cleanUp1 := func() {
|
|
|
|
os.RemoveAll(tempBitcoindDir)
|
|
|
|
}
|
|
|
|
rpcPort := rand.Int()%(65536-1024) + 1024
|
|
|
|
bitcoind := exec.Command(
|
|
|
|
"bitcoind",
|
|
|
|
"-datadir="+tempBitcoindDir,
|
|
|
|
"-regtest",
|
|
|
|
"-connect="+p2pAddr,
|
|
|
|
"-txindex",
|
|
|
|
"-rpcauth=weks:469e9bb14ab2360f8e226efed5ca6f"+
|
|
|
|
"d$507c670e800a95284294edb5773b05544b"+
|
|
|
|
"220110063096c221be9933c82d38e1",
|
|
|
|
fmt.Sprintf("-rpcport=%d", rpcPort),
|
|
|
|
"-disablewallet",
|
2018-07-17 02:50:47 +03:00
|
|
|
"-zmqpubrawblock="+zmqBlockHost,
|
|
|
|
"-zmqpubrawtx="+zmqTxHost,
|
2017-11-10 03:30:20 +03:00
|
|
|
)
|
|
|
|
err = bitcoind.Start()
|
|
|
|
if err != nil {
|
|
|
|
cleanUp1()
|
|
|
|
return nil, nil, err
|
|
|
|
}
|
|
|
|
cleanUp2 := func() {
|
|
|
|
bitcoind.Process.Kill()
|
|
|
|
bitcoind.Wait()
|
|
|
|
cleanUp1()
|
|
|
|
}
|
|
|
|
|
|
|
|
// Wait for the bitcoind instance to start up.
|
|
|
|
time.Sleep(time.Second)
|
|
|
|
|
2018-07-17 02:50:47 +03:00
|
|
|
host := fmt.Sprintf("127.0.0.1:%d", rpcPort)
|
|
|
|
chainConn, err := chain.NewBitcoindConn(
|
|
|
|
&chaincfg.RegressionNetParams, host, "weks",
|
|
|
|
"weks", zmqBlockHost, zmqTxHost,
|
|
|
|
100*time.Millisecond,
|
|
|
|
)
|
2017-11-10 03:30:20 +03:00
|
|
|
if err != nil {
|
2018-07-17 02:50:47 +03:00
|
|
|
return cleanUp2, nil, fmt.Errorf("unable to "+
|
|
|
|
"establish connection to bitcoind: %v",
|
|
|
|
err)
|
|
|
|
}
|
|
|
|
if err := chainConn.Start(); err != nil {
|
|
|
|
return cleanUp2, nil, fmt.Errorf("unable to "+
|
|
|
|
"establish connection to bitcoind: %v",
|
|
|
|
err)
|
|
|
|
}
|
|
|
|
cleanUp3 := func() {
|
|
|
|
chainConn.Stop()
|
2017-11-10 03:30:20 +03:00
|
|
|
cleanUp2()
|
|
|
|
}
|
2018-07-17 02:50:47 +03:00
|
|
|
|
|
|
|
chainView := NewBitcoindFilteredChainView(chainConn)
|
|
|
|
|
|
|
|
return cleanUp3, chainView, nil
|
2017-11-10 03:30:20 +03:00
|
|
|
},
|
|
|
|
},
|
2017-05-22 04:35:58 +03:00
|
|
|
{
|
|
|
|
name: "p2p_neutrino",
|
2017-08-25 04:54:17 +03:00
|
|
|
chainViewInit: func(_ rpcclient.ConnConfig, p2pAddr string) (func(), FilteredChainView, error) {
|
2017-05-22 04:35:58 +03:00
|
|
|
spvDir, err := ioutil.TempDir("", "neutrino")
|
|
|
|
if err != nil {
|
|
|
|
return nil, nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
dbName := filepath.Join(spvDir, "neutrino.db")
|
2019-10-04 18:10:49 +03:00
|
|
|
spvDatabase, err := walletdb.Create("bdb", dbName, true)
|
2017-05-22 04:35:58 +03:00
|
|
|
if err != nil {
|
|
|
|
return nil, nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
spvConfig := neutrino.Config{
|
|
|
|
DataDir: spvDir,
|
|
|
|
Database: spvDatabase,
|
|
|
|
ChainParams: *netParams,
|
|
|
|
ConnectPeers: []string{p2pAddr},
|
|
|
|
}
|
|
|
|
|
|
|
|
spvNode, err := neutrino.NewChainService(spvConfig)
|
|
|
|
if err != nil {
|
|
|
|
return nil, nil, err
|
|
|
|
}
|
|
|
|
spvNode.Start()
|
|
|
|
|
|
|
|
// Wait until the node has fully synced up to the local
|
|
|
|
// btcd node.
|
|
|
|
for !spvNode.IsCurrent() {
|
|
|
|
time.Sleep(time.Millisecond * 100)
|
|
|
|
}
|
|
|
|
|
|
|
|
cleanUp := func() {
|
|
|
|
spvDatabase.Close()
|
|
|
|
spvNode.Stop()
|
|
|
|
os.RemoveAll(spvDir)
|
|
|
|
}
|
|
|
|
|
|
|
|
chainView, err := NewCfFilteredChainView(spvNode)
|
|
|
|
if err != nil {
|
|
|
|
return nil, nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
return cleanUp, chainView, nil
|
|
|
|
},
|
|
|
|
},
|
2017-05-11 03:14:03 +03:00
|
|
|
{
|
|
|
|
name: "btcd_websockets",
|
2017-08-25 04:54:17 +03:00
|
|
|
chainViewInit: func(config rpcclient.ConnConfig, _ string) (func(), FilteredChainView, error) {
|
2017-05-22 04:35:58 +03:00
|
|
|
chainView, err := NewBtcdFilteredChainView(config)
|
|
|
|
if err != nil {
|
|
|
|
return nil, nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
return nil, chainView, err
|
2017-05-11 03:14:03 +03:00
|
|
|
},
|
|
|
|
},
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestFilteredChainView(t *testing.T) {
|
|
|
|
// Initialize the harness around a btcd node which will serve as our
|
|
|
|
// dedicated miner to generate blocks, cause re-orgs, etc. We'll set up
|
2018-02-07 06:11:11 +03:00
|
|
|
// this node with a chain length of 125, so we have plenty of BTC to
|
2017-05-11 03:14:03 +03:00
|
|
|
// play around with.
|
2020-12-03 13:30:22 +03:00
|
|
|
miner, err := rpctest.New(netParams, nil, []string{"--txindex"}, "")
|
2017-05-11 03:14:03 +03:00
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to create mining node: %v", err)
|
|
|
|
}
|
|
|
|
defer miner.TearDown()
|
|
|
|
if err := miner.SetUp(true, 25); err != nil {
|
|
|
|
t.Fatalf("unable to set up mining node: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
rpcConfig := miner.RPCConfig()
|
2017-05-22 04:35:58 +03:00
|
|
|
p2pAddr := miner.P2PAddress()
|
2017-05-11 03:14:03 +03:00
|
|
|
|
|
|
|
for _, chainViewImpl := range interfaceImpls {
|
|
|
|
t.Logf("Testing '%v' implementation of FilteredChainView",
|
|
|
|
chainViewImpl.name)
|
|
|
|
|
2017-05-22 04:35:58 +03:00
|
|
|
cleanUpFunc, chainView, err := chainViewImpl.chainViewInit(rpcConfig, p2pAddr)
|
2017-05-11 03:14:03 +03:00
|
|
|
if err != nil {
|
|
|
|
t.Fatalf("unable to make chain view: %v", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
if err := chainView.Start(); err != nil {
|
|
|
|
t.Fatalf("unable to start chain view: %v", err)
|
|
|
|
}
|
|
|
|
for _, chainViewTest := range chainViewTests {
|
2017-07-05 01:53:54 +03:00
|
|
|
testName := fmt.Sprintf("%v: %v", chainViewImpl.name,
|
|
|
|
chainViewTest.name)
|
|
|
|
success := t.Run(testName, func(t *testing.T) {
|
2017-10-02 18:53:41 +03:00
|
|
|
chainViewTest.test(miner, chainView,
|
|
|
|
chainViewImpl.chainViewInit, t)
|
2017-07-05 01:53:54 +03:00
|
|
|
})
|
|
|
|
|
|
|
|
if !success {
|
|
|
|
break
|
|
|
|
}
|
2017-05-11 03:14:03 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
if err := chainView.Stop(); err != nil {
|
|
|
|
t.Fatalf("unable to stop chain view: %v", err)
|
|
|
|
}
|
2017-05-22 04:35:58 +03:00
|
|
|
|
|
|
|
if cleanUpFunc != nil {
|
|
|
|
cleanUpFunc()
|
|
|
|
}
|
2017-05-11 03:14:03 +03:00
|
|
|
}
|
|
|
|
}
|