Files
tidb/pkg/kv/utils_test.go

161 lines
3.4 KiB
Go

// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package kv
import (
"context"
"slices"
"strconv"
"testing"
"github.com/pingcap/kvproto/pkg/kvrpcpb"
"github.com/pingcap/tidb/pkg/config/kerneltype"
"github.com/pingcap/tidb/pkg/keyspace"
"github.com/stretchr/testify/assert"
)
func TestIncInt64(t *testing.T) {
mb := newMockMap()
key := Key("key")
v, err := IncInt64(mb, key, 1)
assert.Nil(t, err)
assert.Equal(t, int64(1), v)
v, err = IncInt64(mb, key, 10)
assert.Nil(t, err)
assert.Equal(t, int64(11), v)
err = mb.Set(key, []byte("not int"))
assert.Nil(t, err)
_, err = IncInt64(mb, key, 1)
assert.NotNil(t, err)
// test int overflow
maxUint32 := int64(^uint32(0))
err = mb.Set(key, []byte(strconv.FormatInt(maxUint32, 10)))
assert.Nil(t, err)
v, err = IncInt64(mb, key, 1)
assert.Nil(t, err)
assert.Equal(t, maxUint32+1, v)
}
func TestGetInt64(t *testing.T) {
mb := newMockMap()
key := Key("key")
v, err := GetInt64(context.TODO(), mb, key)
assert.Equal(t, int64(0), v)
assert.Nil(t, err)
_, err = IncInt64(mb, key, 15)
assert.Nil(t, err)
v, err = GetInt64(context.TODO(), mb, key)
assert.Equal(t, int64(15), v)
assert.Nil(t, err)
}
type mockMap struct {
index []Key
value [][]byte
}
var _ RetrieverMutator = &mockMap{}
func newMockMap() *mockMap {
return &mockMap{
index: make([]Key, 0),
value: make([][]byte, 0),
}
}
func (s *mockMap) SetDiskFullOpt(level kvrpcpb.DiskFullOpt) {
//TODO nothing.
}
func (s *mockMap) Iter(Key, Key) (Iterator, error) {
return nil, nil
}
func (s *mockMap) IterReverse(Key, Key) (Iterator, error) {
return nil, nil
}
func (s *mockMap) Get(_ context.Context, k Key, _ ...GetOption) (ValueEntry, error) {
for i, key := range s.index {
if key.Cmp(k) == 0 {
return NewValueEntry(s.value[i], 0), nil
}
}
return ValueEntry{}, ErrNotExist
}
func (s *mockMap) Set(k Key, v []byte) error {
for i, key := range s.index {
if key.Cmp(k) == 0 {
s.value[i] = v
return nil
}
}
s.index = append(s.index, k)
s.value = append(s.value, v)
return nil
}
func (s *mockMap) Delete(k Key) error {
for i, key := range s.index {
if key.Cmp(k) == 0 {
s.index = slices.Delete(s.index, i, i+1)
s.value = slices.Delete(s.value, i, i+1)
return nil
}
}
return nil
}
type keyspaceGetterStore struct {
Storage
ks string
}
func (s *keyspaceGetterStore) GetKeyspace() string {
return s.ks
}
func TestIsUserKS(t *testing.T) {
if kerneltype.IsClassic() {
store := &keyspaceGetterStore{}
assert.False(t, IsUserKS(store))
} else {
store := &keyspaceGetterStore{ks: "user"}
assert.True(t, IsUserKS(store))
store.ks = keyspace.System
assert.False(t, IsUserKS(store))
}
}
func TestIsSystemKS(t *testing.T) {
if kerneltype.IsClassic() {
store := &keyspaceGetterStore{}
assert.False(t, IsSystemKS(store))
} else {
store := &keyspaceGetterStore{ks: "user"}
assert.False(t, IsSystemKS(store))
store.ks = keyspace.System
assert.True(t, IsSystemKS(store))
}
}