@Test
    public void computeChargeTest() {
        ShortStayParkingLot ls = new ShortStayParkingLot("Parking space", 10);
        DateTimeFormatter f = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss");
        DateTime before = f.parseDateTime("2015-06-01 12:00:00");
        DateTime after;

        // One second
        after = f.parseDateTime("2015-06-01 12:00:01");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // One minute
        after = f.parseDateTime("2015-06-01 12:01:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // Ten minutes
        after = f.parseDateTime("2015-06-01 12:10:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // Half an hour
        after = f.parseDateTime("2015-06-01 12:30:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // Forty-five minutes
        after = f.parseDateTime("2015-06-01 12:45:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // One hour
        after = f.parseDateTime("2015-06-01 13:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // Two hours
        after = f.parseDateTime("2015-06-01 14:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // Three hours
        after = f.parseDateTime("2015-06-01 15:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // Four hours
        after = f.parseDateTime("2015-06-01 16:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        //Five hours
        after = f.parseDateTime("2015-06-01 17:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // One day
        after = f.parseDateTime("2015-06-02 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 25"));

        // Two days
        after = f.parseDateTime("2015-06-03 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 50"));

        // Three days
        after = f.parseDateTime("2015-06-04 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 75"));

        // Four days
        after = f.parseDateTime("2015-06-05 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 100"));

        // Five days
        after = f.parseDateTime("2015-06-06 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 125"));

        // Six days
        after = f.parseDateTime("2015-06-07 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 125"));


        // One week
        after = f.parseDateTime("2015-06-08 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 125"));

        // One week and three days
        after = f.parseDateTime("2015-06-11 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 200"));

        // One week and six days
        after = f.parseDateTime("2015-06-14 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 275"));

        // One month
        after = f.parseDateTime("2015-07-01 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 550"));

        // Two months
        after = f.parseDateTime("2015-08-01 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 1125"));

        // One year
        after = f.parseDateTime("2016-06-01 12:00:00");
        assertEquals(ls.computeCharge(after, before), Money.parse("AUD 6550"));

    }
}