@Test
public void thatCanApplyBlueEffect() {

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