You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
2.7 KiB
93 lines
2.7 KiB
// Copyright 2016 PingCAP, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package tikv
|
|
|
|
import (
|
|
"context"
|
|
|
|
. "github.com/pingcap/check"
|
|
"github.com/pingcap/tidb/kv"
|
|
)
|
|
|
|
type testScanMockSuite struct {
|
|
OneByOneSuite
|
|
}
|
|
|
|
var _ = Suite(&testScanMockSuite{})
|
|
|
|
func (s *testScanMockSuite) TestScanMultipleRegions(c *C) {
|
|
store := NewTestStore(c).(*tikvStore)
|
|
defer store.Close()
|
|
|
|
txn, err := store.Begin()
|
|
c.Assert(err, IsNil)
|
|
for ch := byte('a'); ch <= byte('z'); ch++ {
|
|
err = txn.Set([]byte{ch}, []byte{ch})
|
|
c.Assert(err, IsNil)
|
|
}
|
|
err = txn.Commit(context.Background())
|
|
c.Assert(err, IsNil)
|
|
|
|
txn, err = store.Begin()
|
|
c.Assert(err, IsNil)
|
|
snapshot := newTiKVSnapshot(store, kv.Version{Ver: txn.StartTS()}, 0)
|
|
scanner, err := newScanner(snapshot, []byte("a"), nil, 10, false)
|
|
c.Assert(err, IsNil)
|
|
for ch := byte('a'); ch <= byte('z'); ch++ {
|
|
c.Assert([]byte{ch}, BytesEquals, []byte(scanner.Key()))
|
|
c.Assert(scanner.Next(), IsNil)
|
|
}
|
|
c.Assert(scanner.Valid(), IsFalse)
|
|
|
|
scanner, err = newScanner(snapshot, []byte("a"), []byte("i"), 10, false)
|
|
c.Assert(err, IsNil)
|
|
for ch := byte('a'); ch <= byte('h'); ch++ {
|
|
c.Assert([]byte{ch}, BytesEquals, []byte(scanner.Key()))
|
|
c.Assert(scanner.Next(), IsNil)
|
|
}
|
|
c.Assert(scanner.Valid(), IsFalse)
|
|
}
|
|
|
|
func (s *testScanMockSuite) TestReverseScan(c *C) {
|
|
store := NewTestStore(c).(*tikvStore)
|
|
defer store.Close()
|
|
|
|
txn, err := store.Begin()
|
|
c.Assert(err, IsNil)
|
|
for ch := byte('a'); ch <= byte('z'); ch++ {
|
|
err = txn.Set([]byte{ch}, []byte{ch})
|
|
c.Assert(err, IsNil)
|
|
}
|
|
err = txn.Commit(context.Background())
|
|
c.Assert(err, IsNil)
|
|
|
|
txn, err = store.Begin()
|
|
c.Assert(err, IsNil)
|
|
snapshot := newTiKVSnapshot(store, kv.Version{Ver: txn.StartTS()}, 0)
|
|
scanner, err := newScanner(snapshot, nil, []byte("z"), 10, true)
|
|
c.Assert(err, IsNil)
|
|
for ch := byte('y'); ch >= byte('a'); ch-- {
|
|
c.Assert(string([]byte{ch}), Equals, string([]byte(scanner.Key())))
|
|
c.Assert(scanner.Next(), IsNil)
|
|
}
|
|
c.Assert(scanner.Valid(), IsFalse)
|
|
|
|
scanner, err = newScanner(snapshot, []byte("a"), []byte("i"), 10, true)
|
|
c.Assert(err, IsNil)
|
|
for ch := byte('h'); ch >= byte('a'); ch-- {
|
|
c.Assert(string([]byte{ch}), Equals, string([]byte(scanner.Key())))
|
|
c.Assert(scanner.Next(), IsNil)
|
|
}
|
|
c.Assert(scanner.Valid(), IsFalse)
|
|
}
|
|
|