@Test public void testCompareVersions() { MavenVersionNumber a = parse("1.0.0"); assertEquals("Should be 0 since same version", 0, a.compareTo(parse("1.0.0"))); assertEquals("Should be 0 since same version", 1, a.compareTo(parse("0.9.9"))); assertEquals("Should be -1 since newer version", -1, a.compareTo(parse("1.0.1"))); assertEquals("Should be 1 since older(snapshot version)", 1, a.compareTo(parse("1.0.0-SNAPSHOT"))); assertEquals("Should be -1 since newer version", -1, a.compareTo(parse("1.0.1-SNAPSHOT"))); a = parse("1.0.0-SNAPSHOT"); assertEquals("Should be 0 since same version", 0, a.compareTo(parse("1.0.0-SNAPSHOT"))); assertEquals("Should be -1 since newer version", -1, a.compareTo(parse("1.0.1"))); assertEquals("Should be -1 since newer version.", -1, a.compareTo(parse("1.0.0"))); MavenVersionNumber b = parse("1.0.0-RC1-SNAPSHOT"); assertEquals("RC1", b.getPostfix()); assertTrue(b.isSnapshot()); assertEquals("Should be the same", 0, b.compareTo(parse("1.0.0-RC1-SNAPSHOT"))); assertEquals("Should be the same", -1, b.compareTo(parse("1.0.0"))); assertEquals("Should be the same", -1, b.compareTo(parse("1.0.0-RC1"))); } }