@Test
public void calculateId_more_complex_scenarios() {

	assertEquals("_alpha_centauri_is_coool",AsciiDoctorHeadline.calculateId("Alpha centauri is!!!!coool!!!"));
	assertEquals("_alpha_centauri_is_coool",AsciiDoctorHeadline.calculateId("Alpha centauri is!!-----!coool!!!"));
	assertEquals("_alpha_centauri_is_coool",AsciiDoctorHeadline.calculateId("Alpha centauri is-coool!!!"));
	assertEquals("_alpha_centauri_is_coool",AsciiDoctorHeadline.calculateId("Alpha centauri is coool..."));
}