@Test
public void thatCanApplyPixelateFacesEffect() {

    assertThat(HaloCloudinary.Effects.pixelateFaces(10).toString().equals("e_pixelate_faces:10")).isTrue();
    assertThat(HaloCloudinary.Effects.pixelateFaces(null).toString().equals("e_pixelate_faces")).isTrue();
    assertThat(HaloCloudinary.Effects.pixelateFaces(-1000).toString().equals("e_pixelate_faces")).isTrue();
}