@Test
public void toConvertedShouldReturnSpecifiedTimestamp() throws Exception {

    // setup
    final Calendar calendar = Calendar.getInstance();
    calendar.set(2016, Calendar.NOVEMBER, 28, 20, 0, 0);
    final long timestamp = calendar.getTimeInMillis();
    // exercise
    final Date actual = underTest.toConverted(timestamp);
    // verify
    assertThat(actual)
            .isWithinYear(2016)
            .isWithinMonth(11)
            .isWithinDayOfMonth(28)
            .isWithinHourOfDay(20)
            .isWithinMinute(0)
            .isWithinSecond(0);
}