class EvaluateMathematicallyTests(TestCase): def setUp(self): self.adapter = EvaluateMathematically() def test_can_process(self): statement = Statement("What is 10 + 10 + 10?") self.assertTrue(self.adapter.can_process(statement)) def test_can_not_process(self): statement = Statement("What is your favorite song?") self.assertFalse(self.adapter.can_process(statement)) def test_is_integer(self): self.assertTrue(self.adapter.is_integer(42)) def test_is_float(self): self.assertTrue(self.adapter.is_float(0.5)) def test_is_operator(self): self.assertTrue(self.adapter.is_operator('+')) def test_is_not_operator(self): self.assertFalse(self.adapter.is_operator('9')) def test_normalize_empty_string(self): """ If a string is empty, the string should be returned. """ self.assertEqual(self.adapter.normalize(""), "") def test_normalize_text_to_lowercase(self): normalized = self.adapter.normalize("HELLO") self.assertTrue(normalized.islower()) def test_normalize_punctuation(self): normalized = self.adapter.normalize("the end.") self.assertEqual(normalized, "the end") def test_load_data(self): self.adapter.load_data("english") self.assertIn("numbers", self.adapter.data)