@Test
public void testAlternateKeysPrimaryAndAlternate() {

	final ConfigurationRegistry configuration = createConfiguration(Collections.singletonList(testAlternateKeys), SimpleSource.forTest("primaryKey", "foo").add("alternateKey1", "bar"));
	assertEquals("foo", configuration.getConfigurationOptionByKey("primaryKey").getValueAsString());
	assertEquals("foo", configuration.getConfigurationOptionByKey("alternateKey1").getValueAsString());
	assertEquals("foo", configuration.getConfigurationOptionByKey("alternateKey2").getValueAsString());
}