def test_get_text_length(self):
markov = MarkovChain(order=4)
markov.parse("a b c d e f g")
output = markov.get_text(length=200)
self.assertLessEqual(len(output), 200)
def test_start_words_used(self):
# Check that we actually use the start words
markov = MarkovChain(order=1)
markov.parse("a b c b c b c b c b")
output = markov.get_text(1000)
if not output.startswith("a"):
self.fail("Output did not start with a!")
def test_run_on_bug(self):
# There was a bug causing the ends of sentences
# to get mauled
markov = MarkovChain(order=2)
markov.parse("a b a b a b a b a b")
output = markov.get_text(1000)
self.assertNotIn("ab", output)
def test_get_text_null_input(self):
# If we have nothing in _chain then we
# want to return an empty string
markov = MarkovChain(order=4)
self.assertEqual(markov._chain, {})
self.assertEqual(markov._parsed, False)
output = markov.get_text()
self.assertEqual(output, "")