Files
tidb/pkg/ddl/ddl_error_test.go

156 lines
6.3 KiB
Go

// Copyright 2022 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 ddl_test
import (
"testing"
"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/pkg/config"
"github.com/pingcap/tidb/pkg/errno"
"github.com/pingcap/tidb/pkg/testkit"
"github.com/stretchr/testify/require"
)
// This test file contains tests that test the expected or unexpected DDL error.
// For expected error, we use SQL to check it.
// For unexpected error, we mock a SQL job to check it.
func TestTableError(t *testing.T) {
store := testkit.CreateMockStoreWithSchemaLease(t, testLease)
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
tk.MustExec("create table testDrop(a int)")
// Schema ID is wrong, so dropping table is failed.
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId", `return(-1)`))
err := tk.ExecToErr("drop table testDrop")
require.Error(t, err)
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId"))
// Table ID is wrong, so dropping table is failed.
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/MockModifyJobTableId", `return(-1)`))
err = tk.ExecToErr("drop table testDrop")
require.Error(t, err)
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/MockModifyJobTableId"))
// Table exists, so creating table is failed.
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId", `return(-1)`))
err = tk.ExecToErr("create table test.t1(a int)")
require.Error(t, err)
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId"))
// Table exists, so creating table is failed.
tk.MustExec("create table test.t2(a int)")
tk.MustGetErrCode("create table test.t2(a int)", errno.ErrTableExists)
}
func TestViewError(t *testing.T) {
store := testkit.CreateMockStoreWithSchemaLease(t, testLease)
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
tk.MustExec("create table t (a int)")
}
func TestForeignKeyError(t *testing.T) {
store := testkit.CreateMockStoreWithSchemaLease(t, testLease)
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
tk.MustExec("create table t (a int, index(a))")
tk.MustExec("create table t1 (a int, FOREIGN KEY fk(a) REFERENCES t(a))")
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId", `return(-1)`))
err := tk.ExecToErr("alter table t1 add foreign key idx(a) REFERENCES t(a)")
require.Error(t, err)
err = tk.ExecToErr("alter table t1 drop index fk")
require.Error(t, err)
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId"))
}
func TestIndexError(t *testing.T) {
store := testkit.CreateMockStoreWithSchemaLease(t, testLease)
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
tk.MustExec("create table t (a int)")
tk.MustExec("alter table t add index a(a)")
// Schema ID is wrong.
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId", `return(-1)`))
err := tk.ExecToErr("alter table t add index idx(a)")
require.Error(t, err)
err = tk.ExecToErr("alter table t1 drop a")
require.Error(t, err)
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId"))
}
func TestColumnError(t *testing.T) {
store := testkit.CreateMockStoreWithSchemaLease(t, testLease)
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
tk.MustExec("create table t (a int, aa int, ab int)")
tk.MustExec("alter table t add index a(a)")
// Invalid schema ID.
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId", `return(-1)`))
err := tk.ExecToErr("alter table t add column ta int")
require.Error(t, err)
err = tk.ExecToErr("alter table t drop column aa")
require.Error(t, err)
err = tk.ExecToErr("alter table t drop column aa")
require.Error(t, err)
err = tk.ExecToErr("alter table t add column ta int, add column tb int")
require.Error(t, err)
err = tk.ExecToErr("alter table t drop column aa, drop column ab")
require.Error(t, err)
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId"))
// Invalid table ID.
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/MockModifyJobTableId", `return(-1)`))
err = tk.ExecToErr("alter table t add column ta int")
require.Error(t, err)
err = tk.ExecToErr("alter table t drop column aa")
require.Error(t, err)
err = tk.ExecToErr("alter table t drop column aa")
require.Error(t, err)
err = tk.ExecToErr("alter table t add column ta int, add column tb int")
require.Error(t, err)
err = tk.ExecToErr("alter table t drop column aa, drop column ab")
require.Error(t, err)
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/MockModifyJobTableId"))
tk.MustGetErrCode("alter table t add column c int after c5", errno.ErrBadField)
tk.MustGetErrCode("alter table t drop column c5", errno.ErrCantDropFieldOrKey)
tk.MustGetErrCode("alter table t add column c int after c5, add column d int", errno.ErrBadField)
tk.MustGetErrCode("alter table t drop column ab, drop column c5", errno.ErrCantDropFieldOrKey)
}
func TestCreateDatabaseError(t *testing.T) {
store := testkit.CreateMockStore(t)
tk := testkit.NewTestKit(t, store)
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId", `return(-1)`))
tk.MustExec("create database db1;")
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/mockModifyJobSchemaId"))
}
// This is a hard-coded test to make sure that the DefMaxOfIndexLimit is 512
// This limitation can not be loosened to a larger number until tidb can handle more indexes on one table.
func TestCreateIndexErrTooManyKeys(t *testing.T) {
require.Equal(t, 512, config.DefMaxOfIndexLimit)
}