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structure_test.go
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// Copyright 2015 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 structure_test
import (
"context"
"testing"
. "github.com/pingcap/check"
"github.com/pingcap/parser/mysql"
"github.com/pingcap/parser/terror"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/store/mockstore"
"github.com/pingcap/tidb/structure"
"github.com/pingcap/tidb/util/testleak"
)
func TestTxStructure(t *testing.T) {
CustomVerboseFlag = true
TestingT(t)
}
var _ = Suite(&testTxStructureSuite{})
type testTxStructureSuite struct {
store kv.Storage
}
func (s *testTxStructureSuite) SetUpSuite(c *C) {
testleak.BeforeTest()
store, err := mockstore.NewMockStore()
c.Assert(err, IsNil)
s.store = store
}
func (s *testTxStructureSuite) TearDownSuite(c *C) {
err := s.store.Close()
c.Assert(err, IsNil)
testleak.AfterTest(c)()
}
func (s *testTxStructureSuite) TestString(c *C) {
txn, err := s.store.Begin()
c.Assert(err, IsNil)
tx := structure.NewStructure(txn, txn, []byte{0x00})
key := []byte("a")
value := []byte("1")
err = tx.Set(key, value)
c.Assert(err, IsNil)
v, err := tx.Get(key)
c.Assert(err, IsNil)
c.Assert(v, DeepEquals, value)
n, err := tx.Inc(key, 1)
c.Assert(err, IsNil)
c.Assert(n, Equals, int64(2))
v, err = tx.Get(key)
c.Assert(err, IsNil)
c.Assert(v, DeepEquals, []byte("2"))
n, err = tx.GetInt64(key)
c.Assert(err, IsNil)
c.Assert(n, Equals, int64(2))
err = tx.Clear(key)
c.Assert(err, IsNil)
v, err = tx.Get(key)
c.Assert(err, IsNil)
c.Assert(v, IsNil)
tx1 := structure.NewStructure(txn, nil, []byte{0x01})
err = tx1.Set(key, value)
c.Assert(err, NotNil)
_, err = tx1.Inc(key, 1)
c.Assert(err, NotNil)
err = tx1.Clear(key)
c.Assert(err, NotNil)
err = txn.Commit(context.Background())
c.Assert(err, IsNil)
}
func (s *testTxStructureSuite) TestList(c *C) {
txn, err := s.store.Begin()
c.Assert(err, IsNil)
tx := structure.NewStructure(txn, txn, []byte{0x00})
key := []byte("a")
err = tx.LPush(key, []byte("3"), []byte("2"), []byte("1"))
c.Assert(err, IsNil)
// Test LGetAll.
err = tx.LPush(key, []byte("11"))
c.Assert(err, IsNil)
values, err := tx.LGetAll(key)
c.Assert(err, IsNil)
c.Assert(values, DeepEquals, [][]byte{[]byte("3"), []byte("2"), []byte("1"), []byte("11")})
value, err := tx.LPop(key)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("11"))
l, err := tx.LLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(3))
value, err = tx.LIndex(key, 1)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("2"))
err = tx.LSet(key, 1, []byte("4"))
c.Assert(err, IsNil)
value, err = tx.LIndex(key, 1)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("4"))
err = tx.LSet(key, 1, []byte("2"))
c.Assert(err, IsNil)
err = tx.LSet(key, 100, []byte("2"))
c.Assert(err, NotNil)
value, err = tx.LIndex(key, -1)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("3"))
value, err = tx.LPop(key)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("1"))
l, err = tx.LLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(2))
err = tx.RPush(key, []byte("4"))
c.Assert(err, IsNil)
l, err = tx.LLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(3))
value, err = tx.LIndex(key, -1)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("4"))
value, err = tx.RPop(key)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("4"))
value, err = tx.RPop(key)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("3"))
value, err = tx.RPop(key)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("2"))
l, err = tx.LLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(0))
err = tx.LPush(key, []byte("1"))
c.Assert(err, IsNil)
err = tx.LClear(key)
c.Assert(err, IsNil)
l, err = tx.LLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(0))
tx1 := structure.NewStructure(txn, nil, []byte{0x01})
err = tx1.LPush(key, []byte("1"))
c.Assert(err, NotNil)
_, err = tx1.RPop(key)
c.Assert(err, NotNil)
err = tx1.LSet(key, 1, []byte("2"))
c.Assert(err, NotNil)
err = tx1.LClear(key)
c.Assert(err, NotNil)
err = txn.Commit(context.Background())
c.Assert(err, IsNil)
}
func (s *testTxStructureSuite) TestHash(c *C) {
txn, err := s.store.Begin()
c.Assert(err, IsNil)
tx := structure.NewStructure(txn, txn, []byte{0x00})
key := []byte("a")
tx.EncodeHashAutoIDKeyValue(key, key, 5)
err = tx.HSet(key, []byte("1"), []byte("1"))
c.Assert(err, IsNil)
err = tx.HSet(key, []byte("2"), []byte("2"))
c.Assert(err, IsNil)
l, err := tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(2))
value, err := tx.HGet(key, []byte("1"))
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("1"))
value, err = tx.HGet(key, []byte("fake"))
c.Assert(err, IsNil)
c.Assert(value, IsNil)
keys, err := tx.HKeys(key)
c.Assert(err, IsNil)
c.Assert(keys, DeepEquals, [][]byte{[]byte("1"), []byte("2")})
res, err := tx.HGetAll(key)
c.Assert(err, IsNil)
c.Assert(res, DeepEquals, []structure.HashPair{
{Field: []byte("1"), Value: []byte("1")},
{Field: []byte("2"), Value: []byte("2")}})
res, err = tx.HGetLastN(key, 1)
c.Assert(err, IsNil)
c.Assert(res, DeepEquals, []structure.HashPair{
{Field: []byte("2"), Value: []byte("2")}})
res, err = tx.HGetLastN(key, 2)
c.Assert(err, IsNil)
c.Assert(res, DeepEquals, []structure.HashPair{
{Field: []byte("2"), Value: []byte("2")},
{Field: []byte("1"), Value: []byte("1")}})
err = tx.HDel(key, []byte("1"))
c.Assert(err, IsNil)
value, err = tx.HGet(key, []byte("1"))
c.Assert(err, IsNil)
c.Assert(value, IsNil)
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(1))
n, err := tx.HInc(key, []byte("1"), 1)
c.Assert(err, IsNil)
c.Assert(n, Equals, int64(1))
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(2))
// Test set new value which equals to old value.
value, err = tx.HGet(key, []byte("1"))
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("1"))
err = tx.HSet(key, []byte("1"), []byte("1"))
c.Assert(err, IsNil)
value, err = tx.HGet(key, []byte("1"))
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("1"))
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(2))
n, err = tx.HInc(key, []byte("1"), 1)
c.Assert(err, IsNil)
c.Assert(n, Equals, int64(2))
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(2))
n, err = tx.HInc(key, []byte("1"), 1)
c.Assert(err, IsNil)
c.Assert(n, Equals, int64(3))
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(2))
n, err = tx.HGetInt64(key, []byte("1"))
c.Assert(err, IsNil)
c.Assert(n, Equals, int64(3))
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(2))
err = tx.HClear(key)
c.Assert(err, IsNil)
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(0))
err = tx.HDel(key, []byte("fake_key"))
c.Assert(err, IsNil)
// Test set nil value.
value, err = tx.HGet(key, []byte("nil_key"))
c.Assert(err, IsNil)
c.Assert(value, IsNil)
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(0))
err = tx.HSet(key, []byte("nil_key"), nil)
c.Assert(err, IsNil)
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(0))
err = tx.HSet(key, []byte("nil_key"), []byte("1"))
c.Assert(err, IsNil)
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(1))
value, err = tx.HGet(key, []byte("nil_key"))
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("1"))
err = tx.HSet(key, []byte("nil_key"), nil)
c.Assert(err, NotNil)
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(1))
value, err = tx.HGet(key, []byte("nil_key"))
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("1"))
err = tx.HSet(key, []byte("nil_key"), []byte("2"))
c.Assert(err, IsNil)
l, err = tx.HLen(key)
c.Assert(err, IsNil)
c.Assert(l, Equals, int64(1))
value, err = tx.HGet(key, []byte("nil_key"))
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("2"))
tx1 := structure.NewStructure(txn, nil, []byte{0x01})
_, err = tx1.HInc(key, []byte("1"), 1)
c.Assert(err, NotNil)
err = tx1.HDel(key, []byte("1"))
c.Assert(err, NotNil)
err = txn.Commit(context.Background())
c.Assert(err, IsNil)
err = kv.RunInNewTxn(context.Background(), s.store, false, func(ctx context.Context, txn kv.Transaction) error {
t := structure.NewStructure(txn, txn, []byte{0x00})
err = t.Set(key, []byte("abc"))
c.Assert(err, IsNil)
value, err = t.Get(key)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, []byte("abc"))
return nil
})
c.Assert(err, IsNil)
}
func (*testTxStructureSuite) TestError(c *C) {
kvErrs := []*terror.Error{
structure.ErrInvalidHashKeyFlag,
structure.ErrInvalidListIndex,
structure.ErrInvalidListMetaData,
structure.ErrWriteOnSnapshot,
}
for _, err := range kvErrs {
code := terror.ToSQLError(err).Code
c.Assert(code != mysql.ErrUnknown && code == uint16(err.Code()), IsTrue, Commentf("err: %v", err))
}
}