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71 lines
1.2 KiB
Go
71 lines
1.2 KiB
Go
package syncx
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import (
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"runtime"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/tal-tech/go-zero/core/lang"
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)
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func TestTryLock(t *testing.T) {
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var lock SpinLock
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assert.True(t, lock.TryLock())
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assert.False(t, lock.TryLock())
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lock.Unlock()
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assert.True(t, lock.TryLock())
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}
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func TestSpinLock(t *testing.T) {
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var lock SpinLock
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lock.Lock()
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assert.False(t, lock.TryLock())
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lock.Unlock()
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assert.True(t, lock.TryLock())
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}
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func TestSpinLockRace(t *testing.T) {
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var lock SpinLock
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lock.Lock()
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var wait sync.WaitGroup
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wait.Add(1)
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go func() {
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wait.Done()
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}()
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time.Sleep(time.Millisecond * 100)
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lock.Unlock()
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wait.Wait()
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assert.True(t, lock.TryLock())
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}
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func TestSpinLock_TryLock(t *testing.T) {
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var lock SpinLock
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var count int32
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var wait sync.WaitGroup
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wait.Add(2)
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sig := make(chan lang.PlaceholderType)
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go func() {
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lock.TryLock()
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sig <- lang.Placeholder
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atomic.AddInt32(&count, 1)
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runtime.Gosched()
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lock.Unlock()
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wait.Done()
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}()
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go func() {
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<-sig
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lock.Lock()
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atomic.AddInt32(&count, 1)
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lock.Unlock()
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wait.Done()
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}()
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wait.Wait()
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assert.Equal(t, int32(2), atomic.LoadInt32(&count))
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}
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