ddl: migrate test-infra to testify for testDBSuite1 and testDBSuite2 (#…

…32992)

close #32962

ddl/db_foreign_key_test.go

@@ -0,0 +1,69 @@
+// 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/tidb/errno"
+	"github.com/pingcap/tidb/parser/mysql"
+	"github.com/pingcap/tidb/testkit"
+)
+
+func TestDuplicateForeignKey(t *testing.T) {
+	store, clean := testkit.CreateMockStore(t)
+	defer clean()
+	tk := testkit.NewTestKit(t, store)
+	tk.MustExec("use test")
+	tk.MustExec("drop table if exists t")
+	tk.MustExec("drop table if exists t1")
+	// Foreign table.
+	tk.MustExec("create table t(id int key)")
+	// Create target table with duplicate fk.
+	tk.MustGetErrCode("create table t1(id int, id_fk int, CONSTRAINT `fk_aaa` FOREIGN KEY (`id_fk`) REFERENCES `t` (`id`), CONSTRAINT `fk_aaa` FOREIGN KEY (`id_fk`) REFERENCES `t` (`id`))", mysql.ErrFkDupName)
+	tk.MustGetErrCode("create table t1(id int, id_fk int, CONSTRAINT `fk_aaa` FOREIGN KEY (`id_fk`) REFERENCES `t` (`id`), CONSTRAINT `fk_aaA` FOREIGN KEY (`id_fk`) REFERENCES `t` (`id`))", mysql.ErrFkDupName)
+
+	tk.MustExec("create table t1(id int, id_fk int, CONSTRAINT `fk_aaa` FOREIGN KEY (`id_fk`) REFERENCES `t` (`id`))")
+	// Alter target table with duplicate fk.
+	tk.MustGetErrCode("alter table t1 add CONSTRAINT `fk_aaa` FOREIGN KEY (`id_fk`) REFERENCES `t` (`id`)", mysql.ErrFkDupName)
+	tk.MustGetErrCode("alter table t1 add CONSTRAINT `fk_aAa` FOREIGN KEY (`id_fk`) REFERENCES `t` (`id`)", mysql.ErrFkDupName)
+	tk.MustExec("drop table if exists t")
+	tk.MustExec("drop table if exists t1")
+}
+
+func TestTemporaryTableForeignKey(t *testing.T) {
+	store, clean := testkit.CreateMockStore(t)
+	defer clean()
+	tk := testkit.NewTestKit(t, store)
+	tk.MustExec("use test")
+	tk.MustExec("drop table if exists t1;")
+	tk.MustExec("create table t1 (a int, b int);")
+	tk.MustExec("drop table if exists t1_tmp;")
+	tk.MustExec("create global temporary table t1_tmp (a int, b int) on commit delete rows;")
+	tk.MustExec("create temporary table t2_tmp (a int, b int)")
+	// test add foreign key.
+	tk.MustExec("drop table if exists t2;")
+	tk.MustExec("create table t2 (a int, b int);")
+	failSQL := "alter table t1_tmp add foreign key (c) REFERENCES t2(a);"
+	tk.MustGetErrCode(failSQL, mysql.ErrCannotAddForeign)
+	failSQL = "alter table t2_tmp add foreign key (c) REFERENCES t2(a);"
+	tk.MustGetErrCode(failSQL, errno.ErrUnsupportedDDLOperation)
+	// Test drop column with foreign key.
+	failSQL = "create global temporary table t3 (c int,d int,foreign key (d) references t1 (b)) on commit delete rows;"
+	tk.MustGetErrCode(failSQL, mysql.ErrCannotAddForeign)
+	failSQL = "create temporary table t4(c int,d int,foreign key (d) references t1 (b));"
+	tk.MustGetErrCode(failSQL, mysql.ErrCannotAddForeign)
+	tk.MustExec("drop table if exists t1,t2,t3, t4,t1_tmp,t2_tmp;")
+}