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686 lines
15 KiB
686 lines
15 KiB
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package store
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import (
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"context"
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"fmt"
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"os"
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"strconv"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/kv"
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"github.com/pingcap/tidb/store/mockstore"
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"github.com/pingcap/tidb/util/logutil"
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"github.com/pingcap/tidb/util/testleak"
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)
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const (
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startIndex = 0
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testCount = 2
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indexStep = 2
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)
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type brokenStore struct{}
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func (s *brokenStore) Open(schema string) (kv.Storage, error) {
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return nil, kv.ErrTxnRetryable
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}
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func TestT(t *testing.T) {
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CustomVerboseFlag = true
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logLevel := os.Getenv("log_level")
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logutil.InitLogger(logutil.NewLogConfig(logLevel, logutil.DefaultLogFormat, "", logutil.EmptyFileLogConfig, false))
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TestingT(t)
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}
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var _ = Suite(&testKVSuite{})
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type testKVSuite struct {
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s kv.Storage
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}
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func (s *testKVSuite) SetUpSuite(c *C) {
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testleak.BeforeTest()
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store, err := mockstore.NewMockTikvStore()
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c.Assert(err, IsNil)
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s.s = store
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}
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func (s *testKVSuite) TearDownSuite(c *C) {
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err := s.s.Close()
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c.Assert(err, IsNil)
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testleak.AfterTest(c)()
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}
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func insertData(c *C, txn kv.Transaction) {
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for i := startIndex; i < testCount; i++ {
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val := encodeInt(i * indexStep)
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err := txn.Set(val, val)
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c.Assert(err, IsNil)
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}
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}
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func mustDel(c *C, txn kv.Transaction) {
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for i := startIndex; i < testCount; i++ {
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val := encodeInt(i * indexStep)
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err := txn.Delete(val)
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c.Assert(err, IsNil)
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}
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}
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func encodeInt(n int) []byte {
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return []byte(fmt.Sprintf("%010d", n))
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}
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func decodeInt(s []byte) int {
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var n int
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fmt.Sscanf(string(s), "%010d", &n)
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return n
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}
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func valToStr(c *C, iter kv.Iterator) string {
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val := iter.Value()
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return string(val)
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}
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func checkSeek(c *C, txn kv.Transaction) {
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for i := startIndex; i < testCount; i++ {
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val := encodeInt(i * indexStep)
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iter, err := txn.Iter(val, nil)
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c.Assert(err, IsNil)
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c.Assert([]byte(iter.Key()), BytesEquals, val)
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c.Assert(decodeInt([]byte(valToStr(c, iter))), Equals, i*indexStep)
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iter.Close()
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}
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// Test iterator Next()
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for i := startIndex; i < testCount-1; i++ {
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val := encodeInt(i * indexStep)
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iter, err := txn.Iter(val, nil)
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c.Assert(err, IsNil)
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c.Assert([]byte(iter.Key()), BytesEquals, val)
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c.Assert(valToStr(c, iter), Equals, string(val))
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err = iter.Next()
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c.Assert(err, IsNil)
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c.Assert(iter.Valid(), IsTrue)
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val = encodeInt((i + 1) * indexStep)
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c.Assert([]byte(iter.Key()), BytesEquals, val)
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c.Assert(valToStr(c, iter), Equals, string(val))
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iter.Close()
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}
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// Non exist and beyond maximum seek test
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iter, err := txn.Iter(encodeInt(testCount*indexStep), nil)
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c.Assert(err, IsNil)
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c.Assert(iter.Valid(), IsFalse)
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// Non exist but between existing keys seek test,
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// it returns the smallest key that larger than the one we are seeking
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inBetween := encodeInt((testCount-1)*indexStep - 1)
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last := encodeInt((testCount - 1) * indexStep)
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iter, err = txn.Iter(inBetween, nil)
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c.Assert(err, IsNil)
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c.Assert(iter.Valid(), IsTrue)
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c.Assert([]byte(iter.Key()), Not(BytesEquals), inBetween)
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c.Assert([]byte(iter.Key()), BytesEquals, last)
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iter.Close()
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}
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func mustNotGet(c *C, txn kv.Transaction) {
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for i := startIndex; i < testCount; i++ {
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s := encodeInt(i * indexStep)
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_, err := txn.Get(context.TODO(), s)
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c.Assert(err, NotNil)
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}
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}
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func mustGet(c *C, txn kv.Transaction) {
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for i := startIndex; i < testCount; i++ {
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s := encodeInt(i * indexStep)
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val, err := txn.Get(context.TODO(), s)
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c.Assert(err, IsNil)
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c.Assert(string(val), Equals, string(s))
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}
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}
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func (s *testKVSuite) TestNew(c *C) {
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store, err := New("goleveldb://relative/path")
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c.Assert(err, NotNil)
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c.Assert(store, IsNil)
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}
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func (s *testKVSuite) TestGetSet(c *C) {
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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insertData(c, txn)
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mustGet(c, txn)
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// Check transaction results
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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defer txn.Commit(context.Background())
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mustGet(c, txn)
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mustDel(c, txn)
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}
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func (s *testKVSuite) TestSeek(c *C) {
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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insertData(c, txn)
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checkSeek(c, txn)
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// Check transaction results
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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defer txn.Commit(context.Background())
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checkSeek(c, txn)
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mustDel(c, txn)
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}
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func (s *testKVSuite) TestInc(c *C) {
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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key := []byte("incKey")
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n, err := kv.IncInt64(txn, key, 100)
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c.Assert(err, IsNil)
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c.Assert(n, Equals, int64(100))
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// Check transaction results
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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n, err = kv.IncInt64(txn, key, -200)
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c.Assert(err, IsNil)
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c.Assert(n, Equals, int64(-100))
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err = txn.Delete(key)
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c.Assert(err, IsNil)
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n, err = kv.IncInt64(txn, key, 100)
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c.Assert(err, IsNil)
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c.Assert(n, Equals, int64(100))
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err = txn.Delete(key)
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c.Assert(err, IsNil)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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}
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func (s *testKVSuite) TestDelete(c *C) {
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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insertData(c, txn)
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mustDel(c, txn)
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mustNotGet(c, txn)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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// Try get
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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mustNotGet(c, txn)
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// Insert again
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insertData(c, txn)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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// Delete all
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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mustDel(c, txn)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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mustNotGet(c, txn)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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}
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func (s *testKVSuite) TestDelete2(c *C) {
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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val := []byte("test")
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txn.Set([]byte("DATA_test_tbl_department_record__0000000001_0003"), val)
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txn.Set([]byte("DATA_test_tbl_department_record__0000000001_0004"), val)
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txn.Set([]byte("DATA_test_tbl_department_record__0000000002_0003"), val)
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txn.Set([]byte("DATA_test_tbl_department_record__0000000002_0004"), val)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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// Delete all
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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it, err := txn.Iter([]byte("DATA_test_tbl_department_record__0000000001_0003"), nil)
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c.Assert(err, IsNil)
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for it.Valid() {
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err = txn.Delete([]byte(it.Key()))
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c.Assert(err, IsNil)
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err = it.Next()
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c.Assert(err, IsNil)
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}
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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it, _ = txn.Iter([]byte("DATA_test_tbl_department_record__000000000"), nil)
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c.Assert(it.Valid(), IsFalse)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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}
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func (s *testKVSuite) TestSetNil(c *C) {
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txn, err := s.s.Begin()
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defer txn.Commit(context.Background())
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c.Assert(err, IsNil)
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err = txn.Set([]byte("1"), nil)
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c.Assert(err, NotNil)
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}
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func (s *testKVSuite) TestBasicSeek(c *C) {
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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txn.Set([]byte("1"), []byte("1"))
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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defer txn.Commit(context.Background())
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it, err := txn.Iter([]byte("2"), nil)
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c.Assert(err, IsNil)
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c.Assert(it.Valid(), Equals, false)
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txn.Delete([]byte("1"))
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}
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func (s *testKVSuite) TestBasicTable(c *C) {
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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for i := 1; i < 5; i++ {
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b := []byte(strconv.Itoa(i))
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txn.Set(b, b)
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}
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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defer txn.Commit(context.Background())
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err = txn.Set([]byte("1"), []byte("1"))
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c.Assert(err, IsNil)
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it, err := txn.Iter([]byte("0"), nil)
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c.Assert(err, IsNil)
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c.Assert(string(it.Key()), Equals, "1")
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err = txn.Set([]byte("0"), []byte("0"))
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c.Assert(err, IsNil)
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it, err = txn.Iter([]byte("0"), nil)
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c.Assert(err, IsNil)
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c.Assert(string(it.Key()), Equals, "0")
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err = txn.Delete([]byte("0"))
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c.Assert(err, IsNil)
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txn.Delete([]byte("1"))
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it, err = txn.Iter([]byte("0"), nil)
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c.Assert(err, IsNil)
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c.Assert(string(it.Key()), Equals, "2")
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err = txn.Delete([]byte("3"))
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c.Assert(err, IsNil)
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it, err = txn.Iter([]byte("2"), nil)
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c.Assert(err, IsNil)
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c.Assert(string(it.Key()), Equals, "2")
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it, err = txn.Iter([]byte("3"), nil)
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c.Assert(err, IsNil)
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c.Assert(string(it.Key()), Equals, "4")
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err = txn.Delete([]byte("2"))
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c.Assert(err, IsNil)
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err = txn.Delete([]byte("4"))
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c.Assert(err, IsNil)
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}
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func (s *testKVSuite) TestRollback(c *C) {
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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err = txn.Rollback()
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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insertData(c, txn)
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mustGet(c, txn)
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err = txn.Rollback()
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c.Assert(err, IsNil)
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
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defer txn.Commit(context.Background())
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for i := startIndex; i < testCount; i++ {
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_, err := txn.Get(context.TODO(), []byte(strconv.Itoa(i)))
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c.Assert(err, NotNil)
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}
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}
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func (s *testKVSuite) TestSeekMin(c *C) {
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rows := []struct {
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key string
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value string
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}{
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{"DATA_test_main_db_tbl_tbl_test_record__00000000000000000001", "lock-version"},
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{"DATA_test_main_db_tbl_tbl_test_record__00000000000000000001_0002", "1"},
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{"DATA_test_main_db_tbl_tbl_test_record__00000000000000000001_0003", "hello"},
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{"DATA_test_main_db_tbl_tbl_test_record__00000000000000000002", "lock-version"},
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{"DATA_test_main_db_tbl_tbl_test_record__00000000000000000002_0002", "2"},
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{"DATA_test_main_db_tbl_tbl_test_record__00000000000000000002_0003", "hello"},
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}
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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for _, row := range rows {
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txn.Set([]byte(row.key), []byte(row.value))
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}
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it, err := txn.Iter(nil, nil)
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c.Assert(err, IsNil)
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for it.Valid() {
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it.Next()
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}
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it, err = txn.Iter([]byte("DATA_test_main_db_tbl_tbl_test_record__00000000000000000000"), nil)
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c.Assert(err, IsNil)
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c.Assert(string(it.Key()), Equals, "DATA_test_main_db_tbl_tbl_test_record__00000000000000000001")
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for _, row := range rows {
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txn.Delete([]byte(row.key))
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}
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}
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func (s *testKVSuite) TestConditionIfNotExist(c *C) {
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var success int64
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cnt := 100
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b := []byte("1")
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var wg sync.WaitGroup
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wg.Add(cnt)
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for i := 0; i < cnt; i++ {
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go func() {
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defer wg.Done()
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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err = txn.Set(b, b)
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if err != nil {
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return
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}
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err = txn.Commit(context.Background())
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if err == nil {
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atomic.AddInt64(&success, 1)
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}
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}()
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}
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wg.Wait()
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// At least one txn can success.
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c.Assert(success, Greater, int64(0))
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// Clean up
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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err = txn.Delete(b)
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c.Assert(err, IsNil)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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}
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func (s *testKVSuite) TestConditionIfEqual(c *C) {
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var success int64
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cnt := 100
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b := []byte("1")
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var wg sync.WaitGroup
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wg.Add(cnt)
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txn, err := s.s.Begin()
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c.Assert(err, IsNil)
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txn.Set(b, b)
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err = txn.Commit(context.Background())
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c.Assert(err, IsNil)
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for i := 0; i < cnt; i++ {
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go func() {
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defer wg.Done()
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// Use txn1/err1 instead of txn/err is
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// to pass `go tool vet -shadow` check.
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txn1, err1 := s.s.Begin()
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c.Assert(err1, IsNil)
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txn1.Set(b, []byte("newValue"))
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err1 = txn1.Commit(context.Background())
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if err1 == nil {
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atomic.AddInt64(&success, 1)
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}
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}()
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}
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wg.Wait()
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c.Assert(success, Greater, int64(0))
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// Clean up
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txn, err = s.s.Begin()
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c.Assert(err, IsNil)
|
|
err = txn.Delete(b)
|
|
c.Assert(err, IsNil)
|
|
err = txn.Commit(context.Background())
|
|
c.Assert(err, IsNil)
|
|
}
|
|
|
|
func (s *testKVSuite) TestConditionUpdate(c *C) {
|
|
txn, err := s.s.Begin()
|
|
c.Assert(err, IsNil)
|
|
txn.Delete([]byte("b"))
|
|
kv.IncInt64(txn, []byte("a"), 1)
|
|
err = txn.Commit(context.Background())
|
|
c.Assert(err, IsNil)
|
|
}
|
|
|
|
func (s *testKVSuite) TestDBClose(c *C) {
|
|
c.Skip("don't know why it fails.")
|
|
store, err := mockstore.NewMockTikvStore()
|
|
c.Assert(err, IsNil)
|
|
|
|
txn, err := store.Begin()
|
|
c.Assert(err, IsNil)
|
|
|
|
err = txn.Set([]byte("a"), []byte("b"))
|
|
c.Assert(err, IsNil)
|
|
|
|
err = txn.Commit(context.Background())
|
|
c.Assert(err, IsNil)
|
|
|
|
ver, err := store.CurrentVersion()
|
|
c.Assert(err, IsNil)
|
|
c.Assert(kv.MaxVersion.Cmp(ver), Equals, 1)
|
|
|
|
snap, err := store.GetSnapshot(kv.MaxVersion)
|
|
c.Assert(err, IsNil)
|
|
|
|
_, err = snap.Get(context.TODO(), []byte("a"))
|
|
c.Assert(err, IsNil)
|
|
|
|
txn, err = store.Begin()
|
|
c.Assert(err, IsNil)
|
|
|
|
err = store.Close()
|
|
c.Assert(err, IsNil)
|
|
|
|
_, err = store.Begin()
|
|
c.Assert(err, NotNil)
|
|
|
|
_, err = store.GetSnapshot(kv.MaxVersion)
|
|
c.Assert(err, NotNil)
|
|
|
|
err = txn.Set([]byte("a"), []byte("b"))
|
|
c.Assert(err, IsNil)
|
|
|
|
err = txn.Commit(context.Background())
|
|
c.Assert(err, NotNil)
|
|
}
|
|
|
|
func (s *testKVSuite) TestIsolationInc(c *C) {
|
|
threadCnt := 4
|
|
|
|
ids := make(map[int64]struct{}, threadCnt*100)
|
|
var m sync.Mutex
|
|
var wg sync.WaitGroup
|
|
|
|
wg.Add(threadCnt)
|
|
for i := 0; i < threadCnt; i++ {
|
|
go func() {
|
|
defer wg.Done()
|
|
for j := 0; j < 100; j++ {
|
|
var id int64
|
|
err := kv.RunInNewTxn(s.s, true, func(txn kv.Transaction) error {
|
|
var err1 error
|
|
id, err1 = kv.IncInt64(txn, []byte("key"), 1)
|
|
return err1
|
|
})
|
|
c.Assert(err, IsNil)
|
|
|
|
m.Lock()
|
|
_, ok := ids[id]
|
|
ids[id] = struct{}{}
|
|
m.Unlock()
|
|
c.Assert(ok, IsFalse)
|
|
}
|
|
}()
|
|
}
|
|
|
|
wg.Wait()
|
|
|
|
// delete
|
|
txn, err := s.s.Begin()
|
|
c.Assert(err, IsNil)
|
|
defer txn.Commit(context.Background())
|
|
txn.Delete([]byte("key"))
|
|
}
|
|
|
|
func (s *testKVSuite) TestIsolationMultiInc(c *C) {
|
|
threadCnt := 4
|
|
incCnt := 100
|
|
keyCnt := 4
|
|
|
|
keys := make([][]byte, 0, keyCnt)
|
|
for i := 0; i < keyCnt; i++ {
|
|
keys = append(keys, []byte(fmt.Sprintf("test_key_%d", i)))
|
|
}
|
|
|
|
var wg sync.WaitGroup
|
|
|
|
wg.Add(threadCnt)
|
|
for i := 0; i < threadCnt; i++ {
|
|
go func() {
|
|
defer wg.Done()
|
|
for j := 0; j < incCnt; j++ {
|
|
err := kv.RunInNewTxn(s.s, true, func(txn kv.Transaction) error {
|
|
for _, key := range keys {
|
|
_, err1 := kv.IncInt64(txn, key, 1)
|
|
if err1 != nil {
|
|
return err1
|
|
}
|
|
}
|
|
|
|
return nil
|
|
})
|
|
c.Assert(err, IsNil)
|
|
}
|
|
}()
|
|
}
|
|
|
|
wg.Wait()
|
|
|
|
err := kv.RunInNewTxn(s.s, false, func(txn kv.Transaction) error {
|
|
for _, key := range keys {
|
|
id, err1 := kv.GetInt64(context.TODO(), txn, key)
|
|
if err1 != nil {
|
|
return err1
|
|
}
|
|
c.Assert(id, Equals, int64(threadCnt*incCnt))
|
|
txn.Delete(key)
|
|
}
|
|
return nil
|
|
})
|
|
c.Assert(err, IsNil)
|
|
}
|
|
|
|
func (s *testKVSuite) TestRetryOpenStore(c *C) {
|
|
begin := time.Now()
|
|
Register("dummy", &brokenStore{})
|
|
store, err := newStoreWithRetry("dummy://dummy-store", 3)
|
|
if store != nil {
|
|
defer store.Close()
|
|
}
|
|
c.Assert(err, NotNil)
|
|
elapse := time.Since(begin)
|
|
c.Assert(uint64(elapse), GreaterEqual, uint64(3*time.Second), Commentf("elapse: %s", elapse))
|
|
}
|
|
|
|
func (s *testKVSuite) TestOpenStore(c *C) {
|
|
Register("open", &brokenStore{})
|
|
store, err := newStoreWithRetry(":", 3)
|
|
if store != nil {
|
|
defer store.Close()
|
|
}
|
|
c.Assert(err, NotNil)
|
|
}
|
|
|
|
func (s *testKVSuite) TestRegister(c *C) {
|
|
err := Register("retry", &brokenStore{})
|
|
c.Assert(err, IsNil)
|
|
err = Register("retry", &brokenStore{})
|
|
c.Assert(err, NotNil)
|
|
}
|
|
|