def test_valid_input(self):
"""extract_keywords should return keywords from string."""
for inp, out in self.DATA:
res = extract_keywords(inp, p=self.p, step=self.step, desired_words=self.dw)
self.assertEqual(2, len(res))
for x in out:
self.assertEqual(True, x in res)
def test_invalid_string(self):
"""extract_keywords should return empty list on invalid string."""
self.assertEqual([], extract_keywords(STR["PUNCTUATION"]))
self.assertEqual([], extract_keywords(STR["INVALID"]))
def test_empty_input(self):
"""extract_keywords should return empty list on empty input."""
self.assertEqual([], extract_keywords(""))
