@Test
public void thatCanApplyShadowEffect() {

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