Files
tidb/util/wait_group_wrapper_test.go

93 lines
2.1 KiB
Go

// Copyright 2021 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 util
import (
"fmt"
"testing"
"time"
"github.com/stretchr/testify/require"
"go.uber.org/atomic"
)
func TestWaitGroupWrapperRun(t *testing.T) {
var expect int32 = 4
var val atomic.Int32
var wg WaitGroupWrapper
for i := int32(0); i < expect; i++ {
wg.Run(func() {
val.Inc()
})
}
wg.Wait()
require.Equal(t, expect, val.Load())
val.Store(0)
wg2 := NewWaitGroupEnhancedWrapper("", nil, false)
for i := int32(0); i < expect; i++ {
wg2.Run(func() {
val.Inc()
}, fmt.Sprintf("test_%v", i))
}
wg2.Wait()
require.Equal(t, expect, val.Load())
}
func TestWaitGroupWrapperRunWithRecover(t *testing.T) {
var expect int32 = 2
var val atomic.Int32
var wg WaitGroupWrapper
for i := int32(0); i < expect; i++ {
wg.RunWithRecover(func() {
panic("test1")
}, func(r interface{}) {
val.Inc()
})
}
wg.Wait()
require.Equal(t, expect, val.Load())
val.Store(0)
wg2 := NewWaitGroupEnhancedWrapper("", nil, false)
for i := int32(0); i < expect; i++ {
wg2.RunWithRecover(func() {
panic("test1")
}, func(r interface{}) {
val.Inc()
}, fmt.Sprintf("test_%v", i))
}
wg2.Wait()
require.Equal(t, expect, val.Load())
}
func TestWaitGroupWrapperCheck(t *testing.T) {
exit := make(chan struct{})
wg := NewWaitGroupEnhancedWrapper("", exit, false)
quit := make(chan struct{})
wg.Run(func() {
<-quit
}, "test")
// need continue check as existed unexited process
close(exit)
require.True(t, wg.check())
// no need to continue check as all process exited
quit <- struct{}{}
time.Sleep(1 * time.Second)
require.False(t, wg.check())
}