@Test
public void detailsForMonthNoCategories() {

	PeriodDetails detailsForMonth = service.detailsForMonth(201502);
	assertEquals("February 2015", detailsForMonth.getName());
	assertEquals(1, detailsForMonth.getCategories().size());
	CategorySummary categorySummary = detailsForMonth.getCategories().get(0);
	assertEquals("Uncategorized", categorySummary.getName());
	assertEquals(-12345L, categorySummary.getAmount());
}