    @Test
    public void filterNonZeroIds_returns_sameArray_whenThereAre_noZeros_inPassedArray() {

        //given
        StaggeredAnimationGroup spiedGroup = prepareSpiedGroup();
        int[] testIds = new int[]{1, 2, 3, 4};

        //when
        int[] filtered = spiedGroup.filterNonZeroIds(testIds);

        //then
        assertThat(filtered).asList().containsExactly(1, 2, 3, 4).inOrder();
    }