Files
tidb/pkg/ddl/fail_test.go

62 lines
2.2 KiB
Go

// Copyright 2018 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 (
"strconv"
"testing"
"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/pkg/meta/model"
"github.com/pingcap/tidb/pkg/testkit"
"github.com/pingcap/tidb/pkg/testkit/testfailpoint"
"github.com/stretchr/testify/require"
)
func TestFailBeforeDecodeArgs(t *testing.T) {
store, dom := testkit.CreateMockStoreAndDomainWithSchemaLease(t, testLease)
tk := testkit.NewTestKit(t, store)
tk.MustExec("use test")
tk.MustExec("create table t1 (c1 int, c2 int);")
tk.MustExec("insert t1 values (1, 2);")
var tableID int64
rs := tk.MustQuery("select TIDB_TABLE_ID from information_schema.tables where table_name='t1' and table_schema='test';")
tableIDi, _ := strconv.Atoi(rs.Rows()[0][0].(string))
tableID = int64(tableIDi)
first := true
stateCnt := 0
testfailpoint.EnableCall(t, "github.com/pingcap/tidb/pkg/ddl/beforeRunOneJobStep", func(job *model.Job) {
// It can be other schema states except failed schema state.
// This schema state can only appear once.
if job.SchemaState == model.StateWriteOnly {
stateCnt++
} else if job.SchemaState == model.StateWriteReorganization {
if first {
require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/pkg/ddl/errorBeforeDecodeArgs", `return(true)`))
first = false
} else {
require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/pkg/ddl/errorBeforeDecodeArgs"))
}
}
})
defaultValue := int64(3)
jobID := testCreateColumn(tk, t, testkit.NewTestKit(t, store).Session(), tableID, "c3", "", defaultValue, dom)
// Make sure the schema state only appears once.
require.Equal(t, 1, stateCnt)
testCheckJobDone(t, store, jobID, true)
}