class MathematicalEvaluationTests(TestCase): def setUp(self): import sys self.adapter = EvaluateMathematically() # Some tests may return decimals under python 3 self.python_version = sys.version_info[0] def test_addition_operator(self): statement = Statement("What is 100 + 54?") confidence, response = self.adapter.process(statement) self.assertEqual(response.text, "( 100 + 54 ) = 154") def test_subtraction_operator(self): statement = Statement("What is 100 - 58?") confidence, response = self.adapter.process(statement) self.assertEqual(response.text, "( 100 - 58 ) = 42") def test_multiplication_operator(self): statement = Statement("What is 100 * 20") confidence, response = self.adapter.process(statement) self.assertEqual(response.text, "( 100 * 20 ) = 2000") def test_division_operator(self): statement = Statement("What is 100 / 20") confidence, response = self.adapter.process(statement) if self.python_version <= 2: self.assertEqual(response.text, "( 100 / 20 ) = 5") else: self.assertEqual(response.text, "( 100 / 20 ) = 5.0") def test_parenthesized_multiplication_and_addition(self): statement = Statement("What is 100 + ( 1000 * 2 )?") confidence, response = self.adapter.process(statement) self.assertEqual(response.text, "( 100 + ( ( 1000 * ( 2 ) ) ) ) = 2100") def test_parenthesized_with_words(self): statement = Statement("What is four plus 100 + ( 100 * 2 )?") confidence, response = self.adapter.process(statement) self.assertEqual(response.text, "( 4 + ( 100 + ( ( 100 * ( 2 ) ) ) ) ) = 304") def test_word_numbers_addition(self): statement = Statement("What is one hundred + four hundred?") confidence, response = self.adapter.process(statement) self.assertEqual(response.text, "( 100 + 400 ) = 500") def test_word_division_operator(self): statement = Statement("What is 100 divided by 100?") confidence, response = self.adapter.process(statement) if self.python_version <= 2: self.assertEqual(response.text, "( 100 / 100 ) = 1") else: self.assertEqual(response.text, "( 100 / 100 ) = 1.0") def test_large_word_division_operator(self): statement = Statement("What is one thousand two hundred four divided by one hundred?") confidence, response = self.adapter.process(statement) if self.python_version <= 2: self.assertEqual(response.text, "( 1000 + 200 + 4 ) / ( 100 ) = 12") else: self.assertEqual(response.text, "( 1000 + 200 + 4 ) / ( 100 ) = 12.04") def test_negative_multiplication(self): statement = Statement("What is -105 * 5") confidence, response = self.adapter.process(statement) self.assertEqual(response.text, "( -105 * 5 ) = -525") def test_negative_decimal_multiplication(self): statement = Statement("What is -100.5 * 20?") confidence, response = self.adapter.process(statement) self.assertEqual(response.text, "( -100.5 * 20 ) = -2010.0")