@Test public void compareTo() { int sequence = 0; TestRequest low = new TestRequest(Priority.LOW); low.setSequence(sequence++); TestRequest low2 = new TestRequest(Priority.LOW); low2.setSequence(sequence++); TestRequest high = new TestRequest(Priority.HIGH); high.setSequence(sequence++); TestRequest immediate = new TestRequest(Priority.IMMEDIATE); immediate.setSequence(sequence++); // "Low" should sort higher because it's really processing order. assertTrue(low.compareTo(high) > 0); assertTrue(high.compareTo(low) < 0); assertTrue(low.compareTo(low2) < 0); assertTrue(low.compareTo(immediate) > 0); assertTrue(immediate.compareTo(high) < 0); }