    @Test
    public void roundTimeUp_shouldRoundUpWhenMinimumIncrement() {

        Calendar calendar = new GregorianCalendar();
        calendar.set(Calendar.MINUTE, TimerPresenter.MINIMUM_INCREMENT);
        TimerPresenter.roundTimeUp(calendar);
        assertThat(calendar.get(Calendar.SECOND), is(0));
        assertThat(calendar.get(Calendar.MINUTE), is(TimerPresenter.MINUTE_INCREMENT));
    }