@Test
public void verifyApplyDefaultConfigurationReturnsNullIfNotSet() {

    Configuration configuration = new Configuration();
    ConfigDescription configDescription = ConfigDescriptionBuilder.create(configUri)
            .withParameter(configDescriptionParameterBuilder2.build()).build();
    ConfigUtil.applyDefaultConfiguration(configuration, configDescription);
    assertThat(configuration.get("p2"), is(nullValue()));
}