[#956] policer/test: Reuse testPool helper

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

pkg/services/policer/policer_test.go

@@ -48,16 +48,12 @@ func TestBuryObjectWithoutContainer(t *testing.T) {
 		return nil
 	}
 
-	// Task pool
-	pool, err := ants.NewPool(4)
-	require.NoError(t, err)
-
 	// Policer instance
 	p := New(
 		WithKeySpaceIterator(&sliceKeySpaceIterator{objs: objs}),
 		WithContainerSource(containerSrc),
 		WithBuryFunc(buryFn),
-		WithPool(pool),
+		WithPool(testPool(t)),
 	)
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -298,9 +294,6 @@ func TestIteratorContract(t *testing.T) {
 		return nil
 	}
 
-	pool, err := ants.NewPool(4)
-	require.NoError(t, err)
-
 	it := &predefinedIterator{
 		scenario: []nextResult{
 			{objs, nil},
@@ -326,7 +319,7 @@ func TestIteratorContract(t *testing.T) {
 		WithKeySpaceIterator(it),
 		WithContainerSource(containerSrc),
 		WithBuryFunc(buryFn),
-		WithPool(pool),
+		WithPool(testPool(t)),
 		func(c *cfg) {
 			c.sleepDuration = time.Millisecond
 		},