def test_empty(self):
h = HintSystem()
self.assertFalse(h.has_hints())
self.assertIsNone(h.hint(self.player))
h.init([])
self.assertIsNone(h.hint(self.player))
h.checkpoint("state1")
self.assertIsNone(h.hint(self.player))
def test_checkpoint(self):
h = HintSystem()
h.init([
Hint("start", None, "first"),
Hint("state2", None, "second"),
Hint("state4", None, "third"),
])
self.assertTrue(h.has_hints())
self.assertIsNone(h.hint(self.player))
h.checkpoint("start")
self.assertEqual("first", h.hint(self.player))
h.checkpoint("state1")
self.assertEqual("first", h.hint(self.player))
h.checkpoint("state2")
self.assertEqual("second", h.hint(self.player))
h.checkpoint("state3")
self.assertEqual("second", h.hint(self.player))
h.checkpoint("state4")
self.assertEqual("third", h.hint(self.player))
