230 lines
8.4 KiB
Go
230 lines
8.4 KiB
Go
// Copyright 2021 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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 temptable
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import (
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"context"
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"testing"
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"github.com/pingcap/tidb/infoschema"
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"github.com/pingcap/tidb/kv"
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"github.com/pingcap/tidb/parser/model"
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"github.com/pingcap/tidb/parser/mysql"
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"github.com/pingcap/tidb/sessionctx"
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"github.com/pingcap/tidb/store/mockstore"
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"github.com/pingcap/tidb/tablecodec"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/mock"
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"github.com/stretchr/testify/require"
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)
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func createTestSuite(t *testing.T) (sessionctx.Context, *temporaryTableDDL, func()) {
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store, err := mockstore.NewMockStore()
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require.NoError(t, err)
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sctx := mock.NewContext()
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sctx.Store = store
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ddl := GetTemporaryTableDDL(sctx).(*temporaryTableDDL)
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clean := func() {
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require.NoError(t, store.Close())
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}
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return sctx, ddl, clean
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}
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func TestAddLocalTemporaryTable(t *testing.T) {
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sctx, ddl, clean := createTestSuite(t)
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defer clean()
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sessVars := sctx.GetSessionVars()
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db1 := newMockSchema("db1")
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db2 := newMockSchema("db2")
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tbl1 := newMockTable("t1")
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tbl2 := newMockTable("t2")
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require.Nil(t, sessVars.LocalTemporaryTables)
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require.Nil(t, sessVars.TemporaryTableData)
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// insert t1
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err := ddl.CreateLocalTemporaryTable(db1, tbl1)
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require.NoError(t, err)
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require.NotNil(t, sessVars.LocalTemporaryTables)
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require.NotNil(t, sessVars.TemporaryTableData)
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require.Equal(t, int64(1), tbl1.ID)
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got, exists := sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByName(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.True(t, exists)
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require.Equal(t, got.Meta(), tbl1)
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// insert t2 with data
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err = ddl.CreateLocalTemporaryTable(db1, tbl2)
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require.NoError(t, err)
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require.Equal(t, int64(2), tbl2.ID)
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got, exists = sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByName(model.NewCIStr("db1"), model.NewCIStr("t2"))
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require.True(t, exists)
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require.Equal(t, got.Meta(), tbl2)
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// should success to set a key for a table
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k := tablecodec.EncodeRowKeyWithHandle(tbl1.ID, kv.IntHandle(1))
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err = sessVars.TemporaryTableData.SetTableKey(tbl1.ID, k, []byte("v1"))
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require.NoError(t, err)
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val, err := sessVars.TemporaryTableData.Get(context.Background(), k)
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require.NoError(t, err)
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require.Equal(t, []byte("v1"), val)
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// insert dup table
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tbl1x := newMockTable("t1")
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err = ddl.CreateLocalTemporaryTable(db1, tbl1x)
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require.True(t, infoschema.ErrTableExists.Equal(err))
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got, exists = sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByName(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.True(t, exists)
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require.Equal(t, got.Meta(), tbl1)
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// insert should be success for same table name in different db
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err = ddl.CreateLocalTemporaryTable(db2, tbl1x)
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require.NoError(t, err)
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got, exists = sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByName(model.NewCIStr("db2"), model.NewCIStr("t1"))
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require.Equal(t, int64(4), got.Meta().ID)
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require.True(t, exists)
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require.Equal(t, got.Meta(), tbl1x)
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// tbl1 still exist
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got, exists = sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByName(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.True(t, exists)
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require.Equal(t, got.Meta(), tbl1)
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}
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func TestRemoveLocalTemporaryTable(t *testing.T) {
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sctx, ddl, clean := createTestSuite(t)
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defer clean()
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sessVars := sctx.GetSessionVars()
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db1 := newMockSchema("db1")
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// remove when empty
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err := ddl.DropLocalTemporaryTable(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.True(t, infoschema.ErrTableNotExists.Equal(err))
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// add one table
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tbl1 := newMockTable("t1")
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err = ddl.CreateLocalTemporaryTable(db1, tbl1)
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require.NoError(t, err)
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require.Equal(t, int64(1), tbl1.ID)
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k := tablecodec.EncodeRowKeyWithHandle(1, kv.IntHandle(1))
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err = sessVars.TemporaryTableData.SetTableKey(tbl1.ID, k, []byte("v1"))
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require.NoError(t, err)
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// remove failed when table not found
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err = ddl.DropLocalTemporaryTable(model.NewCIStr("db1"), model.NewCIStr("t2"))
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require.True(t, infoschema.ErrTableNotExists.Equal(err))
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// remove failed when table not found (same table name in different db)
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err = ddl.DropLocalTemporaryTable(model.NewCIStr("db2"), model.NewCIStr("t1"))
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require.True(t, infoschema.ErrTableNotExists.Equal(err))
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// check failed remove should have no effects
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got, exists := sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByID(tbl1.ID)
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require.True(t, exists)
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require.Equal(t, got.Meta(), tbl1)
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val, err := sessVars.TemporaryTableData.Get(context.Background(), k)
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require.NoError(t, err)
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require.Equal(t, []byte("v1"), val)
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// remove success
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err = ddl.DropLocalTemporaryTable(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.NoError(t, err)
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got, exists = sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByName(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.Nil(t, got)
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require.False(t, exists)
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val, err = sessVars.TemporaryTableData.Get(context.Background(), k)
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require.NoError(t, err)
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require.Equal(t, []byte{}, val)
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}
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func TestTruncateLocalTemporaryTable(t *testing.T) {
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sctx, ddl, clean := createTestSuite(t)
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defer clean()
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sessVars := sctx.GetSessionVars()
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db1 := newMockSchema("db1")
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// truncate when empty
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err := ddl.TruncateLocalTemporaryTable(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.True(t, infoschema.ErrTableNotExists.Equal(err))
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require.Nil(t, sessVars.LocalTemporaryTables)
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require.Nil(t, sessVars.TemporaryTableData)
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// add one table
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tbl1 := newMockTable("t1")
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err = ddl.CreateLocalTemporaryTable(db1, tbl1)
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require.Equal(t, int64(1), tbl1.ID)
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require.NoError(t, err)
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k := tablecodec.EncodeRowKeyWithHandle(1, kv.IntHandle(1))
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err = sessVars.TemporaryTableData.SetTableKey(1, k, []byte("v1"))
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require.NoError(t, err)
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// truncate failed for table not exist
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err = ddl.TruncateLocalTemporaryTable(model.NewCIStr("db1"), model.NewCIStr("t2"))
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require.True(t, infoschema.ErrTableNotExists.Equal(err))
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err = ddl.TruncateLocalTemporaryTable(model.NewCIStr("db2"), model.NewCIStr("t1"))
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require.True(t, infoschema.ErrTableNotExists.Equal(err))
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// check failed should have no effects
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got, exists := sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByName(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.True(t, exists)
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require.Equal(t, got.Meta(), tbl1)
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val, err := sessVars.TemporaryTableData.Get(context.Background(), k)
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require.NoError(t, err)
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require.Equal(t, []byte("v1"), val)
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// insert a new tbl
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tbl2 := newMockTable("t2")
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err = ddl.CreateLocalTemporaryTable(db1, tbl2)
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require.Equal(t, int64(2), tbl2.ID)
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require.NoError(t, err)
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k2 := tablecodec.EncodeRowKeyWithHandle(2, kv.IntHandle(1))
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err = sessVars.TemporaryTableData.SetTableKey(2, k2, []byte("v2"))
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require.NoError(t, err)
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// truncate success
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err = ddl.TruncateLocalTemporaryTable(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.NoError(t, err)
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got, exists = sessVars.LocalTemporaryTables.(*infoschema.LocalTemporaryTables).TableByName(model.NewCIStr("db1"), model.NewCIStr("t1"))
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require.True(t, exists)
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require.NotEqual(t, got.Meta(), tbl1)
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require.Equal(t, int64(3), got.Meta().ID)
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val, err = sessVars.TemporaryTableData.Get(context.Background(), k)
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require.NoError(t, err)
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require.Equal(t, []byte{}, val)
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// truncate just effect its own data
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val, err = sessVars.TemporaryTableData.Get(context.Background(), k2)
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require.NoError(t, err)
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require.Equal(t, []byte("v2"), val)
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}
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func newMockTable(tblName string) *model.TableInfo {
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c1 := &model.ColumnInfo{ID: 1, Name: model.NewCIStr("c1"), State: model.StatePublic, Offset: 0, FieldType: *types.NewFieldType(mysql.TypeLonglong)}
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c2 := &model.ColumnInfo{ID: 2, Name: model.NewCIStr("c2"), State: model.StatePublic, Offset: 1, FieldType: *types.NewFieldType(mysql.TypeVarchar)}
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tblInfo := &model.TableInfo{Name: model.NewCIStr(tblName), Columns: []*model.ColumnInfo{c1, c2}, PKIsHandle: true}
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return tblInfo
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}
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func newMockSchema(schemaName string) *model.DBInfo {
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return &model.DBInfo{ID: 10, Name: model.NewCIStr(schemaName), State: model.StatePublic}
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}
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