@Test
	public void testCreatingContactWithNullFirstNameShouldFail() {
		try {
			new Contact(null, "Smith", phoneNumber);
			fail("Was expecting an Exception when no first name is provided.");
		} catch (IllegalArgumentException iae) {
			Assert.assertEquals("Please provide a value for First Name as it is a non-nullable field.", iae.getMessage());
		}
	}