def test_playing_card(self):
card = PlayingCard(rank='ACE', suit='SPADES')
self.assertEqual(card.rank, 'ACE')
self.assertEqual(card.suit, 'SPADES')
r = card.__repr__()
self.assertEqual(r, '<PlayingCard: ACE of SPADES>')
card_dict = card.to_dict()
self.assertEqual(card_dict['rank'], 'ACE')
self.assertEqual(card_dict['suit'], 'SPADES')
def test_playing_card_to_json(self):
card = PlayingCard(rank='ACE', suit='SPADES')
card_json = card.to_json()
card_dict = json.loads(card_json)
self.assertEqual(card_dict['rank'], 'ACE')
self.assertEqual(card_dict['suit'], 'SPADES')
