@Test
public void testSortedOutput() {

	Assert.assertEquals(
		"hello world",
		CSSClassNames.builder(
			"world", "hello"
		).build());
	Assert.assertEquals(
		"alpha beta gamma",
		CSSClassNames.builder(
			"beta"
		).add(
			"gamma"
		).add(
			"alpha"
		).build());
}