@Test
public void testConstructorNoInitSeasonalsAdditive() {

    final HoltWintersPointForecasterParams params = HoltWintersAustouristsTestHelper.buildAustouristsParams(HoltWintersSeasonalityType.ADDITIVE);
    HoltWintersOnlineComponents subject = new HoltWintersOnlineComponents(params);
    Assert.assertArrayEquals(HoltWintersAustouristsTestHelper.ADDITIVE_IDENTITY_SEASONALS, subject.getSeasonal(), TOLERANCE);
}