46 lines
1.6 KiB
Go
46 lines
1.6 KiB
Go
// Copyright 2025 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.
|
|
|
|
//go:build nextgen
|
|
|
|
package variable
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/pingcap/tidb/pkg/sessionctx/vardef"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestTiDBPessimisticTransactionFairLocking(t *testing.T) {
|
|
sv := GetSysVar(vardef.TiDBPessimisticTransactionFairLocking)
|
|
vars := NewSessionVars(nil)
|
|
|
|
val, err := sv.Validate(vars, "off", vardef.ScopeSession)
|
|
require.NoError(t, err)
|
|
require.Equal(t, vardef.Off, val)
|
|
require.Nil(t, sv.SetSessionFromHook(vars, val))
|
|
require.False(t, vars.PessimisticTransactionFairLocking)
|
|
|
|
val, err = sv.Validate(vars, "on", vardef.ScopeSession)
|
|
require.Error(t, err)
|
|
require.True(t, errNotSupportedInNextGen.Equal(err))
|
|
require.Equal(t, vardef.Off, val)
|
|
require.Nil(t, sv.SetSessionFromHook(vars, val))
|
|
require.False(t, vars.PessimisticTransactionFairLocking)
|
|
|
|
val = GlobalSystemVariableInitialValue(vardef.TiDBPessimisticTransactionFairLocking, BoolToOnOff(vardef.DefTiDBPessimisticTransactionFairLocking))
|
|
require.Equal(t, vardef.Off, val)
|
|
}
|