@Test
public void thatCanApplyGammaEffect() {

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