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609 lines
18 KiB
609 lines
18 KiB
package mempool
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import (
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"context"
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"crypto/rand"
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"encoding/binary"
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"fmt"
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mrand "math/rand"
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"os"
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"testing"
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"time"
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"github.com/gogo/protobuf/proto"
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gogotypes "github.com/gogo/protobuf/types"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/abci/example/counter"
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"github.com/tendermint/tendermint/abci/example/kvstore"
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abciserver "github.com/tendermint/tendermint/abci/server"
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abci "github.com/tendermint/tendermint/abci/types"
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cfg "github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/libs/log"
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tmrand "github.com/tendermint/tendermint/libs/rand"
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"github.com/tendermint/tendermint/libs/service"
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"github.com/tendermint/tendermint/proxy"
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"github.com/tendermint/tendermint/types"
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)
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// A cleanupFunc cleans up any config / test files created for a particular
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// test.
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type cleanupFunc func()
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func newMempoolWithApp(cc proxy.ClientCreator) (*CListMempool, cleanupFunc) {
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return newMempoolWithAppAndConfig(cc, cfg.ResetTestRoot("mempool_test"))
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}
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func newMempoolWithAppAndConfig(cc proxy.ClientCreator, config *cfg.Config) (*CListMempool, cleanupFunc) {
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appConnMem, _ := cc.NewABCIClient()
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appConnMem.SetLogger(log.TestingLogger().With("module", "abci-client", "connection", "mempool"))
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err := appConnMem.Start()
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if err != nil {
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panic(err)
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}
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mempool := NewCListMempool(config.Mempool, appConnMem, 0)
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mempool.SetLogger(log.TestingLogger())
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return mempool, func() { os.RemoveAll(config.RootDir) }
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}
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func ensureNoFire(t *testing.T, ch <-chan struct{}, timeoutMS int) {
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timer := time.NewTimer(time.Duration(timeoutMS) * time.Millisecond)
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select {
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case <-ch:
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t.Fatal("Expected not to fire")
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case <-timer.C:
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}
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}
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func ensureFire(t *testing.T, ch <-chan struct{}, timeoutMS int) {
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timer := time.NewTimer(time.Duration(timeoutMS) * time.Millisecond)
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select {
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case <-ch:
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case <-timer.C:
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t.Fatal("Expected to fire")
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}
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}
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func checkTxs(t *testing.T, mempool Mempool, count int, peerID uint16) types.Txs {
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txs := make(types.Txs, count)
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txInfo := TxInfo{SenderID: peerID}
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for i := 0; i < count; i++ {
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txBytes := make([]byte, 20)
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txs[i] = txBytes
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_, err := rand.Read(txBytes)
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if err != nil {
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t.Error(err)
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}
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if err := mempool.CheckTx(txBytes, nil, txInfo); err != nil {
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// Skip invalid txs.
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// TestMempoolFilters will fail otherwise. It asserts a number of txs
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// returned.
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if IsPreCheckError(err) {
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continue
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}
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t.Fatalf("CheckTx failed: %v while checking #%d tx", err, i)
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}
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}
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return txs
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}
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func TestReapMaxBytesMaxGas(t *testing.T) {
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app := kvstore.NewApplication()
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cc := proxy.NewLocalClientCreator(app)
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mempool, cleanup := newMempoolWithApp(cc)
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defer cleanup()
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// Ensure gas calculation behaves as expected
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checkTxs(t, mempool, 1, UnknownPeerID)
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tx0 := mempool.TxsFront().Value.(*mempoolTx)
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// assert that kv store has gas wanted = 1.
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require.Equal(t, app.CheckTx(abci.RequestCheckTx{Tx: tx0.tx}).GasWanted, int64(1), "KVStore had a gas value neq to 1")
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require.Equal(t, tx0.gasWanted, int64(1), "transactions gas was set incorrectly")
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// ensure each tx is 20 bytes long
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require.Equal(t, len(tx0.tx), 20, "Tx is longer than 20 bytes")
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mempool.Flush()
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// each table driven test creates numTxsToCreate txs with checkTx, and at the end clears all remaining txs.
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// each tx has 20 bytes
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tests := []struct {
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numTxsToCreate int
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maxBytes int64
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maxGas int64
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expectedNumTxs int
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}{
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{20, -1, -1, 20},
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{20, -1, 0, 0},
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{20, -1, 10, 10},
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{20, -1, 30, 20},
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{20, 0, -1, 0},
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{20, 0, 10, 0},
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{20, 10, 10, 0},
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{20, 24, 10, 1},
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{20, 240, 5, 5},
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{20, 240, -1, 10},
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{20, 240, 10, 10},
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{20, 240, 15, 10},
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{20, 20000, -1, 20},
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{20, 20000, 5, 5},
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{20, 20000, 30, 20},
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}
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for tcIndex, tt := range tests {
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checkTxs(t, mempool, tt.numTxsToCreate, UnknownPeerID)
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got := mempool.ReapMaxBytesMaxGas(tt.maxBytes, tt.maxGas)
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assert.Equal(t, tt.expectedNumTxs, len(got), "Got %d txs, expected %d, tc #%d",
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len(got), tt.expectedNumTxs, tcIndex)
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mempool.Flush()
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}
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}
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func TestMempoolFilters(t *testing.T) {
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app := kvstore.NewApplication()
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cc := proxy.NewLocalClientCreator(app)
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mempool, cleanup := newMempoolWithApp(cc)
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defer cleanup()
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emptyTxArr := []types.Tx{[]byte{}}
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nopPreFilter := func(tx types.Tx) error { return nil }
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nopPostFilter := func(tx types.Tx, res *abci.ResponseCheckTx) error { return nil }
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// each table driven test creates numTxsToCreate txs with checkTx, and at the end clears all remaining txs.
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// each tx has 20 bytes
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tests := []struct {
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numTxsToCreate int
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preFilter PreCheckFunc
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postFilter PostCheckFunc
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expectedNumTxs int
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}{
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{10, nopPreFilter, nopPostFilter, 10},
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{10, PreCheckMaxBytes(10), nopPostFilter, 0},
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{10, PreCheckMaxBytes(22), nopPostFilter, 10},
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{10, nopPreFilter, PostCheckMaxGas(-1), 10},
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{10, nopPreFilter, PostCheckMaxGas(0), 0},
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{10, nopPreFilter, PostCheckMaxGas(1), 10},
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{10, nopPreFilter, PostCheckMaxGas(3000), 10},
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{10, PreCheckMaxBytes(10), PostCheckMaxGas(20), 0},
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{10, PreCheckMaxBytes(30), PostCheckMaxGas(20), 10},
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{10, PreCheckMaxBytes(22), PostCheckMaxGas(1), 10},
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{10, PreCheckMaxBytes(22), PostCheckMaxGas(0), 0},
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}
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for tcIndex, tt := range tests {
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err := mempool.Update(1, emptyTxArr, abciResponses(len(emptyTxArr), abci.CodeTypeOK), tt.preFilter, tt.postFilter)
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require.NoError(t, err)
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checkTxs(t, mempool, tt.numTxsToCreate, UnknownPeerID)
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require.Equal(t, tt.expectedNumTxs, mempool.Size(), "mempool had the incorrect size, on test case %d", tcIndex)
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mempool.Flush()
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}
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}
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func TestMempoolUpdate(t *testing.T) {
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app := kvstore.NewApplication()
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cc := proxy.NewLocalClientCreator(app)
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mempool, cleanup := newMempoolWithApp(cc)
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defer cleanup()
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// 1. Adds valid txs to the cache
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{
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err := mempool.Update(1, []types.Tx{[]byte{0x01}}, abciResponses(1, abci.CodeTypeOK), nil, nil)
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require.NoError(t, err)
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err = mempool.CheckTx([]byte{0x01}, nil, TxInfo{})
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require.NoError(t, err)
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}
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// 2. Removes valid txs from the mempool
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{
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err := mempool.CheckTx([]byte{0x02}, nil, TxInfo{})
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require.NoError(t, err)
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err = mempool.Update(1, []types.Tx{[]byte{0x02}}, abciResponses(1, abci.CodeTypeOK), nil, nil)
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require.NoError(t, err)
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assert.Zero(t, mempool.Size())
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}
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// 3. Removes invalid transactions from the cache and the mempool (if present)
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{
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err := mempool.CheckTx([]byte{0x03}, nil, TxInfo{})
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require.NoError(t, err)
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err = mempool.Update(1, []types.Tx{[]byte{0x03}}, abciResponses(1, 1), nil, nil)
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require.NoError(t, err)
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assert.Zero(t, mempool.Size())
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err = mempool.CheckTx([]byte{0x03}, nil, TxInfo{})
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require.NoError(t, err)
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}
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}
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func TestMempool_KeepInvalidTxsInCache(t *testing.T) {
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app := counter.NewApplication(true)
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cc := proxy.NewLocalClientCreator(app)
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wcfg := cfg.DefaultConfig()
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wcfg.Mempool.KeepInvalidTxsInCache = true
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mempool, cleanup := newMempoolWithAppAndConfig(cc, wcfg)
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defer cleanup()
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// 1. An invalid transaction must remain in the cache after Update
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{
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a := make([]byte, 8)
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binary.BigEndian.PutUint64(a, 0)
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b := make([]byte, 8)
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binary.BigEndian.PutUint64(b, 1)
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err := mempool.CheckTx(b, nil, TxInfo{})
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require.NoError(t, err)
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// simulate new block
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_ = app.DeliverTx(abci.RequestDeliverTx{Tx: a})
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_ = app.DeliverTx(abci.RequestDeliverTx{Tx: b})
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err = mempool.Update(1, []types.Tx{a, b},
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[]*abci.ResponseDeliverTx{{Code: abci.CodeTypeOK}, {Code: 2}}, nil, nil)
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require.NoError(t, err)
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// a must be added to the cache
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err = mempool.CheckTx(a, nil, TxInfo{})
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require.NoError(t, err)
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// b must remain in the cache
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err = mempool.CheckTx(b, nil, TxInfo{})
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require.NoError(t, err)
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}
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// 2. An invalid transaction must remain in the cache
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{
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a := make([]byte, 8)
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binary.BigEndian.PutUint64(a, 0)
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// remove a from the cache to test (2)
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mempool.cache.Remove(a)
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err := mempool.CheckTx(a, nil, TxInfo{})
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require.NoError(t, err)
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}
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}
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func TestTxsAvailable(t *testing.T) {
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app := kvstore.NewApplication()
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cc := proxy.NewLocalClientCreator(app)
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mempool, cleanup := newMempoolWithApp(cc)
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defer cleanup()
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mempool.EnableTxsAvailable()
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timeoutMS := 500
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// with no txs, it shouldnt fire
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// send a bunch of txs, it should only fire once
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txs := checkTxs(t, mempool, 100, UnknownPeerID)
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ensureFire(t, mempool.TxsAvailable(), timeoutMS)
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// call update with half the txs.
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// it should fire once now for the new height
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// since there are still txs left
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committedTxs, txs := txs[:50], txs[50:]
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if err := mempool.Update(1, committedTxs, abciResponses(len(committedTxs), abci.CodeTypeOK), nil, nil); err != nil {
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t.Error(err)
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}
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ensureFire(t, mempool.TxsAvailable(), timeoutMS)
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// send a bunch more txs. we already fired for this height so it shouldnt fire again
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moreTxs := checkTxs(t, mempool, 50, UnknownPeerID)
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// now call update with all the txs. it should not fire as there are no txs left
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committedTxs = append(txs, moreTxs...) //nolint: gocritic
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if err := mempool.Update(2, committedTxs, abciResponses(len(committedTxs), abci.CodeTypeOK), nil, nil); err != nil {
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t.Error(err)
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}
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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// send a bunch more txs, it should only fire once
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checkTxs(t, mempool, 100, UnknownPeerID)
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ensureFire(t, mempool.TxsAvailable(), timeoutMS)
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ensureNoFire(t, mempool.TxsAvailable(), timeoutMS)
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}
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func TestSerialReap(t *testing.T) {
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app := counter.NewApplication(true)
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cc := proxy.NewLocalClientCreator(app)
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mempool, cleanup := newMempoolWithApp(cc)
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defer cleanup()
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appConnCon, _ := cc.NewABCIClient()
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appConnCon.SetLogger(log.TestingLogger().With("module", "abci-client", "connection", "consensus"))
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err := appConnCon.Start()
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require.Nil(t, err)
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cacheMap := make(map[string]struct{})
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deliverTxsRange := func(start, end int) {
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// Deliver some txs.
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for i := start; i < end; i++ {
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// This will succeed
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txBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(txBytes, uint64(i))
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err := mempool.CheckTx(txBytes, nil, TxInfo{})
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_, cached := cacheMap[string(txBytes)]
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if cached {
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require.NotNil(t, err, "expected error for cached tx")
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} else {
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require.Nil(t, err, "expected no err for uncached tx")
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}
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cacheMap[string(txBytes)] = struct{}{}
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// Duplicates are cached and should return error
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err = mempool.CheckTx(txBytes, nil, TxInfo{})
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require.NotNil(t, err, "Expected error after CheckTx on duplicated tx")
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}
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}
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reapCheck := func(exp int) {
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txs := mempool.ReapMaxBytesMaxGas(-1, -1)
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require.Equal(t, len(txs), exp, fmt.Sprintf("Expected to reap %v txs but got %v", exp, len(txs)))
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}
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updateRange := func(start, end int) {
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txs := make([]types.Tx, 0)
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for i := start; i < end; i++ {
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txBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(txBytes, uint64(i))
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txs = append(txs, txBytes)
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}
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if err := mempool.Update(0, txs, abciResponses(len(txs), abci.CodeTypeOK), nil, nil); err != nil {
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t.Error(err)
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}
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}
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commitRange := func(start, end int) {
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ctx := context.Background()
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// Deliver some txs.
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for i := start; i < end; i++ {
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txBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(txBytes, uint64(i))
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res, err := appConnCon.DeliverTxSync(ctx, abci.RequestDeliverTx{Tx: txBytes})
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if err != nil {
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t.Errorf("client error committing tx: %v", err)
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}
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if res.IsErr() {
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t.Errorf("error committing tx. Code:%v result:%X log:%v",
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res.Code, res.Data, res.Log)
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}
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}
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res, err := appConnCon.CommitSync(ctx)
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if err != nil {
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t.Errorf("client error committing: %v", err)
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}
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if len(res.Data) != 8 {
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t.Errorf("error committing. Hash:%X", res.Data)
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}
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}
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//----------------------------------------
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// Deliver some txs.
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deliverTxsRange(0, 100)
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// Reap the txs.
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reapCheck(100)
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// Reap again. We should get the same amount
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reapCheck(100)
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// Deliver 0 to 999, we should reap 900 new txs
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// because 100 were already counted.
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deliverTxsRange(0, 1000)
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// Reap the txs.
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reapCheck(1000)
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// Reap again. We should get the same amount
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reapCheck(1000)
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// Commit from the conensus AppConn
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commitRange(0, 500)
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updateRange(0, 500)
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// We should have 500 left.
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reapCheck(500)
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// Deliver 100 invalid txs and 100 valid txs
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deliverTxsRange(900, 1100)
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// We should have 600 now.
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reapCheck(600)
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}
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func TestMempool_CheckTxChecksTxSize(t *testing.T) {
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app := kvstore.NewApplication()
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cc := proxy.NewLocalClientCreator(app)
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mempl, cleanup := newMempoolWithApp(cc)
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defer cleanup()
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maxTxSize := mempl.config.MaxTxBytes
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testCases := []struct {
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len int
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err bool
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}{
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// check small txs. no error
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0: {10, false},
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1: {1000, false},
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2: {1000000, false},
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// check around maxTxSize
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3: {maxTxSize - 1, false},
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4: {maxTxSize, false},
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5: {maxTxSize + 1, true},
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}
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for i, testCase := range testCases {
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caseString := fmt.Sprintf("case %d, len %d", i, testCase.len)
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tx := tmrand.Bytes(testCase.len)
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err := mempl.CheckTx(tx, nil, TxInfo{})
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bv := gogotypes.BytesValue{Value: tx}
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bz, err2 := bv.Marshal()
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require.NoError(t, err2)
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require.Equal(t, len(bz), proto.Size(&bv), caseString)
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if !testCase.err {
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require.NoError(t, err, caseString)
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} else {
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require.Equal(t, err, ErrTxTooLarge{maxTxSize, testCase.len}, caseString)
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}
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}
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}
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func TestMempoolTxsBytes(t *testing.T) {
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app := kvstore.NewApplication()
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cc := proxy.NewLocalClientCreator(app)
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config := cfg.ResetTestRoot("mempool_test")
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config.Mempool.MaxTxsBytes = 10
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mempool, cleanup := newMempoolWithAppAndConfig(cc, config)
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defer cleanup()
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// 1. zero by default
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assert.EqualValues(t, 0, mempool.TxsBytes())
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// 2. len(tx) after CheckTx
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err := mempool.CheckTx([]byte{0x01}, nil, TxInfo{})
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require.NoError(t, err)
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assert.EqualValues(t, 1, mempool.TxsBytes())
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|
|
// 3. zero again after tx is removed by Update
|
|
err = mempool.Update(1, []types.Tx{[]byte{0x01}}, abciResponses(1, abci.CodeTypeOK), nil, nil)
|
|
require.NoError(t, err)
|
|
assert.EqualValues(t, 0, mempool.TxsBytes())
|
|
|
|
// 4. zero after Flush
|
|
err = mempool.CheckTx([]byte{0x02, 0x03}, nil, TxInfo{})
|
|
require.NoError(t, err)
|
|
assert.EqualValues(t, 2, mempool.TxsBytes())
|
|
|
|
mempool.Flush()
|
|
assert.EqualValues(t, 0, mempool.TxsBytes())
|
|
|
|
// 5. ErrMempoolIsFull is returned when/if MaxTxsBytes limit is reached.
|
|
err = mempool.CheckTx([]byte{0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04}, nil, TxInfo{})
|
|
require.NoError(t, err)
|
|
err = mempool.CheckTx([]byte{0x05}, nil, TxInfo{})
|
|
if assert.Error(t, err) {
|
|
assert.IsType(t, ErrMempoolIsFull{}, err)
|
|
}
|
|
|
|
// 6. zero after tx is rechecked and removed due to not being valid anymore
|
|
app2 := counter.NewApplication(true)
|
|
cc = proxy.NewLocalClientCreator(app2)
|
|
mempool, cleanup = newMempoolWithApp(cc)
|
|
defer cleanup()
|
|
|
|
txBytes := make([]byte, 8)
|
|
binary.BigEndian.PutUint64(txBytes, uint64(0))
|
|
|
|
err = mempool.CheckTx(txBytes, nil, TxInfo{})
|
|
require.NoError(t, err)
|
|
assert.EqualValues(t, 8, mempool.TxsBytes())
|
|
|
|
appConnCon, _ := cc.NewABCIClient()
|
|
appConnCon.SetLogger(log.TestingLogger().With("module", "abci-client", "connection", "consensus"))
|
|
err = appConnCon.Start()
|
|
require.Nil(t, err)
|
|
t.Cleanup(func() {
|
|
if err := appConnCon.Stop(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
})
|
|
ctx := context.Background()
|
|
res, err := appConnCon.DeliverTxSync(ctx, abci.RequestDeliverTx{Tx: txBytes})
|
|
require.NoError(t, err)
|
|
require.EqualValues(t, 0, res.Code)
|
|
res2, err := appConnCon.CommitSync(ctx)
|
|
require.NoError(t, err)
|
|
require.NotEmpty(t, res2.Data)
|
|
|
|
// Pretend like we committed nothing so txBytes gets rechecked and removed.
|
|
err = mempool.Update(1, []types.Tx{}, abciResponses(0, abci.CodeTypeOK), nil, nil)
|
|
require.NoError(t, err)
|
|
assert.EqualValues(t, 0, mempool.TxsBytes())
|
|
|
|
// 7. Test RemoveTxByKey function
|
|
err = mempool.CheckTx([]byte{0x06}, nil, TxInfo{})
|
|
require.NoError(t, err)
|
|
assert.EqualValues(t, 1, mempool.TxsBytes())
|
|
mempool.RemoveTxByKey(TxKey([]byte{0x07}), true)
|
|
assert.EqualValues(t, 1, mempool.TxsBytes())
|
|
mempool.RemoveTxByKey(TxKey([]byte{0x06}), true)
|
|
assert.EqualValues(t, 0, mempool.TxsBytes())
|
|
|
|
}
|
|
|
|
// This will non-deterministically catch some concurrency failures like
|
|
// https://github.com/tendermint/tendermint/issues/3509
|
|
// TODO: all of the tests should probably also run using the remote proxy app
|
|
// since otherwise we're not actually testing the concurrency of the mempool here!
|
|
func TestMempoolRemoteAppConcurrency(t *testing.T) {
|
|
sockPath := fmt.Sprintf("unix:///tmp/echo_%v.sock", tmrand.Str(6))
|
|
app := kvstore.NewApplication()
|
|
cc, server := newRemoteApp(t, sockPath, app)
|
|
t.Cleanup(func() {
|
|
if err := server.Stop(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
})
|
|
config := cfg.ResetTestRoot("mempool_test")
|
|
mempool, cleanup := newMempoolWithAppAndConfig(cc, config)
|
|
defer cleanup()
|
|
|
|
// generate small number of txs
|
|
nTxs := 10
|
|
txLen := 200
|
|
txs := make([]types.Tx, nTxs)
|
|
for i := 0; i < nTxs; i++ {
|
|
txs[i] = tmrand.Bytes(txLen)
|
|
}
|
|
|
|
// simulate a group of peers sending them over and over
|
|
N := config.Mempool.Size
|
|
maxPeers := 5
|
|
for i := 0; i < N; i++ {
|
|
peerID := mrand.Intn(maxPeers)
|
|
txNum := mrand.Intn(nTxs)
|
|
tx := txs[txNum]
|
|
|
|
// this will err with ErrTxInCache many times ...
|
|
mempool.CheckTx(tx, nil, TxInfo{SenderID: uint16(peerID)}) //nolint: errcheck // will error
|
|
}
|
|
err := mempool.FlushAppConn()
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
// caller must close server
|
|
func newRemoteApp(
|
|
t *testing.T,
|
|
addr string,
|
|
app abci.Application,
|
|
) (
|
|
clientCreator proxy.ClientCreator,
|
|
server service.Service,
|
|
) {
|
|
clientCreator = proxy.NewRemoteClientCreator(addr, "socket", true)
|
|
|
|
// Start server
|
|
server = abciserver.NewSocketServer(addr, app)
|
|
server.SetLogger(log.TestingLogger().With("module", "abci-server"))
|
|
if err := server.Start(); err != nil {
|
|
t.Fatalf("Error starting socket server: %v", err.Error())
|
|
}
|
|
return clientCreator, server
|
|
}
|
|
|
|
func abciResponses(n int, code uint32) []*abci.ResponseDeliverTx {
|
|
responses := make([]*abci.ResponseDeliverTx, 0, n)
|
|
for i := 0; i < n; i++ {
|
|
responses = append(responses, &abci.ResponseDeliverTx{Code: code})
|
|
}
|
|
return responses
|
|
}
|