def test_get_bookmarks_by_date(self):
g = NetworkGraph()
g.bookmark('content', 'fake_uuid_1')
g.bookmark('content', 'fake_uuid_2')
bookmarks = g.get_bookmarks_by_date('content')
self.assertEquals(bookmarks[0].id, 'fake_uuid_1')
self.assertTrue(bookmarks[1].datetime >= bookmarks[0].datetime)
