public void test_getDifference_long_int() {
        assertEquals(0, iField.getDifference(1L, 0L));
        assertEquals(567, iField.getDifference(567L * 90L, 0L));
        assertEquals(567 - 1234, iField.getDifference(567L * 90L, 1234L * 90L));
        assertEquals(567 + 1234, iField.getDifference(567L * 90L, -1234L * 90L));
        try {
            iField.getDifference(LONG_MAX, -1L);
            fail();
        } catch (ArithmeticException ex) {}
    }