github.com/kubewharf/katalyst-core@v0.5.3/pkg/util/syntax/lock_test.go (about)

     1  /*
     2  Copyright 2022 The Katalyst Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  /*
    18   native locking functions in package-sync doesn't contain deadlock-detecting logic,
    19   to avoid deadlock during runtime processes, it's advised to use locking functions
    20   here to provide deadlock-detecting when it exceeds timeout
    21  */
    22  
    23  package syntax
    24  
    25  import (
    26  	"testing"
    27  	"time"
    28  
    29  	"github.com/stretchr/testify/assert"
    30  
    31  	"github.com/kubewharf/katalyst-core/pkg/metrics"
    32  )
    33  
    34  func TestLock(t *testing.T) {
    35  	t.Parallel()
    36  
    37  	m := NewMutexWithPeriod(metrics.DummyMetrics{}, time.Second)
    38  	assert.Equal(t, m.Lock(), 0)
    39  	go func() {
    40  		assert.Greater(t, m.Lock(), 0)
    41  		m.Unlock()
    42  	}()
    43  	time.Sleep(time.Second * 2)
    44  	m.Unlock()
    45  	time.Sleep(time.Second)
    46  }
    47  
    48  func TestLockMultipleTimes(t *testing.T) {
    49  	t.Parallel()
    50  
    51  	m := NewMutexWithPeriod(metrics.DummyMetrics{}, time.Second)
    52  	assert.Equal(t, m.Lock(), 0)
    53  	go func() {
    54  		assert.Greater(t, m.Lock(), 1)
    55  		m.Unlock()
    56  	}()
    57  	time.Sleep(time.Second * 4)
    58  	m.Unlock()
    59  	time.Sleep(time.Second)
    60  }
    61  
    62  func TestRWLock(t *testing.T) {
    63  	t.Parallel()
    64  
    65  	rm := NewRWMutexWithPeriod(metrics.DummyMetrics{}, time.Second)
    66  	assert.Equal(t, rm.Lock(), 0)
    67  	go func() {
    68  		assert.Greater(t, rm.Lock(), 0)
    69  		rm.Unlock()
    70  	}()
    71  	time.Sleep(time.Second * 2)
    72  	rm.Unlock()
    73  	time.Sleep(time.Second)
    74  }
    75  
    76  func TestRWRLock(t *testing.T) {
    77  	t.Parallel()
    78  
    79  	rm := NewRWMutexWithPeriod(metrics.DummyMetrics{}, time.Second)
    80  	assert.Equal(t, rm.Lock(), 0)
    81  	go func() {
    82  		assert.Greater(t, rm.RLock(), 0)
    83  		rm.RUnlock()
    84  	}()
    85  	time.Sleep(time.Second * 2)
    86  	rm.Unlock()
    87  	time.Sleep(time.Second)
    88  }