public boolean isEmpty() {
      return this.overridingProperties.isEmpty();
   }
@Test
   public final void testIfIsEmptyRecognizesThatConfigurationPropertiesOverridesAreEmpty() {
      final ConfigurationPropertiesOverrides objectUnderTest = new ConfigurationPropertiesOverrides();

      assertTrue(
            "isEmpty() should have noticed that the ConfigurationPropertiesOverrides instance is indeed empty. However, it didn't.",
            objectUnderTest.isEmpty());
   }