@Test
public void shouldAddOffsetWithNoTime() {

  String offset = "P1M3D";
  ZonedDateTime time = ZonedDateTime.parse("2017-01-22T08:07:11.22Z");
  ZonedDateTime offsetTime = addOffset(time, offset);
  assertThat(offsetTime, is(ZonedDateTime.parse("2017-02-25T08:07:11.22Z")));
}