public void testMinus_int() {
        Seconds test2 = Seconds.seconds(2);
        Seconds result = test2.minus(3);
        assertEquals(2, test2.getSeconds());
        assertEquals(-1, result.getSeconds());
        
        assertEquals(1, Seconds.ONE.minus(0).getSeconds());
        
        try {
            Seconds.MIN_VALUE.minus(1);
            fail();
        } catch (ArithmeticException ex) {
            // expected
        }
    }