@Test
public void formatExecuteWithFormat() throws Exception {
Date date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse("2011-01-01 00:00:00");
String result = underTest.format(date, "yyyy");
assertEquals("2011", result);
}
@Test
public void testExecute() throws Exception {
Date date = new Date();
assertNotEquals(date, underTest.modifyDate(date, "+1 day"));
}