diff --git a/ants_test.go b/ants_test.go
index 5dcb654..bb4104f 100644
--- a/ants_test.go
+++ b/ants_test.go
@@ -563,129 +563,116 @@ func TestInfinitePool(t *testing.T) {
 	}
 }
 
-func testPoolWithDisablePurge(t *testing.T, p *Pool, numWorker int) {
+func testPoolWithDisablePurge(t *testing.T, p *Pool, numWorker int, waitForPurge time.Duration) {
 	sig := make(chan struct{})
-	wg := sync.WaitGroup{}
-
-	wg.Add(numWorker)
+	var wg1, wg2 sync.WaitGroup
+	wg1.Add(numWorker)
+	wg2.Add(numWorker)
 	for i := 0; i < numWorker; i++ {
 		_ = p.Submit(func() {
-			wg.Done()
-			sig <- struct{}{}
+			wg1.Done()
+			<-sig
+			wg2.Done()
 		})
 	}
-	wg.Wait()
-	runCnt := p.Running()
-	assert.EqualValuesf(t, numWorker, runCnt, "expect %d workers running, but got %d", numWorker, runCnt)
+	wg1.Wait()
 
+	runningCnt := p.Running()
+	assert.EqualValuesf(t, numWorker, runningCnt, "expect %d workers running, but got %d", numWorker, runningCnt)
 	freeCnt := p.Free()
-	assert.EqualValuesf(t, 0, freeCnt, "expect % free workers, but got %d", 0, freeCnt)
+	assert.EqualValuesf(t, 0, freeCnt, "expect %d free workers, but got %d", 0, freeCnt)
 
-	newCap := 10
-
-	p.Tune(newCap)
-	capacity := p.Cap()
-	assert.EqualValuesf(t, newCap, capacity, "expect capacity: %d but got %d", newCap, capacity)
-	<-sig
-	time.Sleep(time.Millisecond * 10)
-
-	wg.Add(1)
-	_ = p.Submit(func() {
-		wg.Done()
-		sig <- struct{}{}
-	})
-	wg.Wait()
-
-	runCnt = p.Running()
-	assert.EqualValuesf(t, numWorker, runCnt, "expect %d workers running, but got %d", numWorker, runCnt)
-
-	<-sig
-	<-sig
+	// Finish all tasks and sleep for a while to wait for purging, since we've disabled purge mechanism,
+	// we should see that all workers are still running after the sleep.
+	close(sig)
+	wg2.Wait()
+	time.Sleep(waitForPurge + waitForPurge/2)
 
+	runningCnt = p.Running()
+	assert.EqualValuesf(t, numWorker, runningCnt, "expect %d workers running, but got %d", numWorker, runningCnt)
 	freeCnt = p.Free()
-	assert.EqualValuesf(t, newCap-numWorker, freeCnt, "expect % free workers, but got %d", newCap-numWorker, freeCnt)
+	assert.EqualValuesf(t, 0, freeCnt, "expect %d free workers, but got %d", 0, freeCnt)
 
-	p.Release()
-	p.Reboot()
+	err := p.ReleaseTimeout(waitForPurge + waitForPurge/2)
+	assert.NoErrorf(t, err, "release pool failed: %v", err)
 
-	runCnt = p.Running()
-	assert.EqualValuesf(t, numWorker, runCnt, "expect %d workers running, but got %d", numWorker, runCnt)
+	runningCnt = p.Running()
+	assert.EqualValuesf(t, 0, runningCnt, "expect %d workers running, but got %d", 0, runningCnt)
+	freeCnt = p.Free()
+	assert.EqualValuesf(t, numWorker, freeCnt, "expect %d free workers, but got %d", numWorker, freeCnt)
 }
 
-func TestWithDisablePurge(t *testing.T) {
-	numWorker := 2
+func TestWithDisablePurgePool(t *testing.T) {
+	numWorker := 10
 	p, _ := NewPool(numWorker, WithDisablePurge(true))
-	testPoolWithDisablePurge(t, p, numWorker)
+	testPoolWithDisablePurge(t, p, numWorker, DefaultCleanIntervalTime)
 }
 
-func TestWithDisablePurgeAndWithExpiration(t *testing.T) {
-	numWorker := 2
-	p, _ := NewPool(numWorker, WithDisablePurge(true), WithExpiryDuration(time.Millisecond*100))
-	testPoolWithDisablePurge(t, p, numWorker)
+func TestWithDisablePurgeAndWithExpirationPool(t *testing.T) {
+	numWorker := 10
+	expiredDuration := time.Millisecond * 100
+	p, _ := NewPool(numWorker, WithDisablePurge(true), WithExpiryDuration(expiredDuration))
+	testPoolWithDisablePurge(t, p, numWorker, expiredDuration)
 }
 
-func testPoolFuncWithDisablePurge(t *testing.T, p *PoolWithFunc, numWorker int, wg *sync.WaitGroup, sig chan struct{}) {
-	wg.Add(numWorker)
+func testPoolFuncWithDisablePurge(t *testing.T, p *PoolWithFunc, numWorker int, wg1, wg2 *sync.WaitGroup, sig chan struct{}, waitForPurge time.Duration) {
 	for i := 0; i < numWorker; i++ {
 		_ = p.Invoke(i)
 	}
-	wg.Wait()
-	runCnt := p.Running()
-	assert.EqualValuesf(t, numWorker, runCnt, "expect %d workers running, but got %d", numWorker, runCnt)
+	wg1.Wait()
 
+	runningCnt := p.Running()
+	assert.EqualValuesf(t, numWorker, runningCnt, "expect %d workers running, but got %d", numWorker, runningCnt)
 	freeCnt := p.Free()
-	assert.EqualValuesf(t, 0, freeCnt, "expect % free workers, but got %d", 0, freeCnt)
+	assert.EqualValuesf(t, 0, freeCnt, "expect %d free workers, but got %d", 0, freeCnt)
 
-	newCap := 10
-	p.Tune(newCap)
-	capacity := p.Cap()
-	assert.EqualValuesf(t, newCap, capacity, "expect capacity: %d but got %d", newCap, capacity)
-	<-sig
-
-	time.Sleep(time.Millisecond * 200)
-
-	wg.Add(1)
-	_ = p.Invoke(10)
-	wg.Wait()
-
-	runCnt = p.Running()
-	assert.EqualValuesf(t, numWorker, runCnt, "expect %d workers running, but got %d", numWorker, runCnt)
-
-	<-sig
-	<-sig
+	// Finish all tasks and sleep for a while to wait for purging, since we've disabled purge mechanism,
+	// we should see that all workers are still running after the sleep.
+	close(sig)
+	wg2.Wait()
+	time.Sleep(waitForPurge + waitForPurge/2)
 
+	runningCnt = p.Running()
+	assert.EqualValuesf(t, numWorker, runningCnt, "expect %d workers running, but got %d", numWorker, runningCnt)
 	freeCnt = p.Free()
-	assert.EqualValuesf(t, newCap-numWorker, freeCnt, "expect % free workers, but got %d", newCap-numWorker, freeCnt)
+	assert.EqualValuesf(t, 0, freeCnt, "expect %d free workers, but got %d", 0, freeCnt)
 
-	p.Release()
-	p.Reboot()
+	err := p.ReleaseTimeout(waitForPurge + waitForPurge/2)
+	assert.NoErrorf(t, err, "release pool failed: %v", err)
 
-	runCnt = p.Running()
-	assert.EqualValuesf(t, numWorker, runCnt, "expect %d workers running, but got %d", numWorker, runCnt)
+	runningCnt = p.Running()
+	assert.EqualValuesf(t, 0, runningCnt, "expect %d workers running, but got %d", 0, runningCnt)
+	freeCnt = p.Free()
+	assert.EqualValuesf(t, numWorker, freeCnt, "expect %d free workers, but got %d", numWorker, freeCnt)
 }
 
-func TestPoolFuncWithDisablePurge(t *testing.T) {
-	numWorker := 2
+func TestWithDisablePurgePoolFunc(t *testing.T) {
+	numWorker := 10
 	sig := make(chan struct{})
-	wg := sync.WaitGroup{}
-
+	var wg1, wg2 sync.WaitGroup
+	wg1.Add(numWorker)
+	wg2.Add(numWorker)
 	p, _ := NewPoolWithFunc(numWorker, func(i interface{}) {
-		wg.Done()
-		sig <- struct{}{}
+		wg1.Done()
+		<-sig
+		wg2.Done()
 	}, WithDisablePurge(true))
-	testPoolFuncWithDisablePurge(t, p, numWorker, &wg, sig)
+	testPoolFuncWithDisablePurge(t, p, numWorker, &wg1, &wg2, sig, DefaultCleanIntervalTime)
 }
 
-func TestPoolFuncWithDisablePurgeAndWithExpiration(t *testing.T) {
+func TestWithDisablePurgeAndWithExpirationPoolFunc(t *testing.T) {
 	numWorker := 2
 	sig := make(chan struct{})
-	wg := sync.WaitGroup{}
-
+	var wg1, wg2 sync.WaitGroup
+	wg1.Add(numWorker)
+	wg2.Add(numWorker)
+	expiredDuration := time.Millisecond * 100
 	p, _ := NewPoolWithFunc(numWorker, func(i interface{}) {
-		wg.Done()
-		sig <- struct{}{}
-	}, WithDisablePurge(true), WithExpiryDuration(time.Millisecond*100))
-	testPoolFuncWithDisablePurge(t, p, numWorker, &wg, sig)
+		wg1.Done()
+		<-sig
+		wg2.Done()
+	}, WithDisablePurge(true), WithExpiryDuration(expiredDuration))
+	testPoolFuncWithDisablePurge(t, p, numWorker, &wg1, &wg2, sig, expiredDuration)
 }
 
 func TestInfinitePoolWithFunc(t *testing.T) {
diff --git a/pool.go b/pool.go
index 407f9a1..d5e7b7b 100644
--- a/pool.go
+++ b/pool.go
@@ -84,6 +84,7 @@ func (p *Pool) purgePeriodically(ctx context.Context) {
 		if p.IsClosed() {
 			break
 		}
+
 		p.lock.Lock()
 		expiredWorkers := p.workers.retrieveExpiry(p.options.ExpiryDuration)
 		p.lock.Unlock()
@@ -248,7 +249,7 @@ func (p *Pool) ReleaseTimeout(timeout time.Duration) error {
 
 	endTime := time.Now().Add(timeout)
 	for time.Now().Before(endTime) {
-		if p.Running() == 0 && atomic.LoadInt32(&p.heartbeatDone) == 1 {
+		if p.Running() == 0 && (p.options.DisablePurge || atomic.LoadInt32(&p.heartbeatDone) == 1) {
 			return nil
 		}
 		time.Sleep(10 * time.Millisecond)
diff --git a/pool_func.go b/pool_func.go
index 08c2181..c72cf34 100644
--- a/pool_func.go
+++ b/pool_func.go
@@ -86,6 +86,7 @@ func (p *PoolWithFunc) purgePeriodically(ctx context.Context) {
 		if p.IsClosed() {
 			break
 		}
+
 		currentTime := time.Now()
 		p.lock.Lock()
 		idleWorkers := p.workers
@@ -269,7 +270,7 @@ func (p *PoolWithFunc) ReleaseTimeout(timeout time.Duration) error {
 
 	endTime := time.Now().Add(timeout)
 	for time.Now().Before(endTime) {
-		if p.Running() == 0 && atomic.LoadInt32(&p.heartbeatDone) == 1 {
+		if p.Running() == 0 && (p.options.DisablePurge || atomic.LoadInt32(&p.heartbeatDone) == 1) {
 			return nil
 		}
 		time.Sleep(10 * time.Millisecond)
diff --git a/worker_loop_queue_test.go b/worker_loop_queue_test.go
index 1a2e17c..2c6e9f0 100644
--- a/worker_loop_queue_test.go
+++ b/worker_loop_queue_test.go
@@ -29,8 +29,7 @@ func TestLoopQueue(t *testing.T) {
 		}
 	}
 	assert.EqualValues(t, 5, q.len(), "Len error")
-	v := q.detach()
-	t.Log(v)
+	_ = q.detach()
 	assert.EqualValues(t, 4, q.len(), "Len error")
 
 	time.Sleep(time.Second)