@Test
public void shouldNotAddContentWhenUserAlreadyHasInHistory() throws Exception {

	when(contentManager.getUsersWithContentInHistory(any(Content.class), any(List.class))).thenReturn(Collections.singletonList(user1));
	Map<Content, List<User>> res = filterManager.filterContent(Collections.singletonList(parsedContent));
	Assert.assertTrue(res.isEmpty());
}