Answer 7: Integer test

    public void testgetNumerator() {
        Fraction a = Fraction.getFraction(5, 3);
        assertEquals(5, a.getNumerator());
    }
    
    public void testgetProperNumerator() {
        Fraction a = Fraction.getFraction(5, 3);
        assertEquals(2, a.getProperNumerator());
    }