@Test
    public void customerConstructorTest(){
        Date date =  new Date();
        Customer customer = new Customer("CustId", "CustName", date);
        Assert.assertEquals("CustName", customer.getName());
        Assert.assertEquals("CustId", customer.getId());
        Assert.assertEquals(date, customer.getStartDate());

        customer = new Customer(date);
        Assert.assertEquals(date, customer.getStartDate());
    }