@Test
public void thatCanApplyBlurFacesEffect() {

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