def test_addition(self):
self.assertEqual(answer("What is 1 plus 1?"), 2)
def test_missing_operation(self):
with self.assertRaisesWithMessage(ValueError):
answer("What is 2 2 minus 3?")
def test_multiple_division(self):
self.assertEqual(answer("What is -12 divided by 2 divided by -3?"), 2)
def test_unknown_operation(self):
with self.assertRaisesWithMessage(ValueError):
answer("What is 52 cubed?")
def test_reject_two_operations_in_a_row(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is 1 plus plus 2?')
def test_division(self):
self.assertEqual(answer("What is 33 divided by -3?"), -11)
def test_subtraction_then_addition(self):
self.assertEqual(answer("What is 17 minus 6 plus 3?"), 14)
def test_reject_problem_missing_an_operand(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is 1 plus?')
def test_reject_problem_with_no_operands_or_operators(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is?')
def test_reject_postfix_notation(self):
with self.assertRaisesWithMessage(ValueError):
answer("What is 1 2 plus?")
def test_non_math_question(self):
with self.assertRaisesWithMessage(ValueError):
answer("Who is the President of the United States?")
def test_reject_prefix_notation(self):
with self.assertRaises(ValueError) as err:
answer("What is plus 1 2?")
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "syntax error")
def test_reject_two_numbers_in_a_row(self):
with self.assertRaises(ValueError) as err:
answer("What is 1 plus 2 1?")
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "syntax error")
def test_reject_problem_with_no_operands_or_operators(self):
with self.assertRaises(ValueError) as err:
answer("What is?")
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "syntax error")
def test_addition_with_negative_numbers(self):
self.assertEqual(answer("What is -1 plus -10?"), -11)
def test_reject_two_operations_in_a_row(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is 1 plus plus 2?')
def test_subtraction(self):
self.assertEqual(answer("What is 4 minus -12?"), 16)
def test_reject_two_numbers_in_a_row(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is 1 plus 2 1?')
def test_addition_and_subtraction(self):
self.assertEqual(answer("What is 1 plus 5 minus -2?"), 8)
def test_just_a_number(self):
self.assertEqual(answer('What is 5?'), 5)
def test_addition_and_multiplication(self):
self.assertEqual(answer("What is -3 plus 7 multiplied by -2?"), -8)
def test_reject_prefix_notation(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is plus 1 2?')
def test_reject_problem_missing_an_operand(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is 1 plus?')
def test_missing_operation(self):
with self.assertRaisesWithMessage(ValueError):
answer("What is 2 2 minus 3?")
def test_reject_prefix_notation(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is plus 1 2?')
def test_missing_number(self):
with self.assertRaisesWithMessage(ValueError):
answer("What is 7 plus multiplied by -2?")
def test_reject_problem_missing_an_operand(self):
with self.assertRaises(ValueError) as err:
answer("What is 1 plus?")
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "syntax error")
def test_addition(self):
self.assertEqual(answer("What is 1 plus 1?"), 2)
def test_unknown_operation(self):
with self.assertRaisesWithMessage(ValueError):
answer("What is 52 cubed?")
def test_more_addition(self):
self.assertEqual(answer("What is 53 plus 2?"), 55)
def test_more_addition(self):
self.assertEqual(answer("What is 53 plus 2?"), 55)
def test_addition_with_negative_numbers(self):
self.assertEqual(answer("What is -1 plus -10?"), -11)
def test_large_addition(self):
self.assertEqual(answer("What is 123 plus 45678?"), 45801)
def test_large_addition(self):
self.assertEqual(answer("What is 123 plus 45678?"), 45801)
def test_multiplication(self):
self.assertEqual(answer("What is -3 multiplied by 25?"), -75)
def test_subtraction(self):
self.assertEqual(answer("What is 4 minus -12?"), 16)
def test_multiple_additions(self):
self.assertEqual(answer("What is 1 plus 1 plus 1?"), 3)
def test_multiplication(self):
self.assertEqual(answer("What is -3 multiplied by 25?"), -75)
def test_multiple_subtraction(self):
self.assertEqual(answer("What is 20 minus 4 minus 13?"), 3)
def test_division(self):
self.assertEqual(answer("What is 33 divided by -3?"), -11)
def test_multiple_multiplication(self):
self.assertEqual(
answer("What is 2 multiplied by -2 multiplied by 3?"), -12)
def test_multiple_additions(self):
self.assertEqual(answer("What is 1 plus 1 plus 1?"), 3)
def test_multiple_division(self):
self.assertEqual(
answer("What is -12 divided by 2 divided by -3?"), 2)
def test_addition_and_subtraction(self):
self.assertEqual(answer("What is 1 plus 5 minus -2?"), 8)
def test_non_math_question(self):
with self.assertRaisesWithMessage(ValueError):
answer("Who is the President of the United States?")
def test_multiple_subtraction(self):
self.assertEqual(answer("What is 20 minus 4 minus 13?"), 3)
def test_reject_problem_with_no_operands_or_operators(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is?')
def test_subtraction_then_addition(self):
self.assertEqual(answer("What is 17 minus 6 plus 3?"), 14)
def test_reject_two_numbers_in_a_row(self):
with self.assertRaisesWithMessage(ValueError):
answer('What is 1 plus 2 1?')
def test_multiple_multiplication(self):
self.assertEqual(answer("What is 2 multiplied by -2 multiplied by 3?"), -12)
def test_just_a_number(self):
self.assertEqual(answer('What is 5?'), 5)
def test_addition_and_multiplication(self):
self.assertEqual(answer("What is -3 plus 7 multiplied by -2?"), -8)
def test_missing_number(self):
with self.assertRaisesWithMessage(ValueError):
answer("What is 7 plus multiplied by -2?")
def test_non_math_question(self):
with self.assertRaises(ValueError) as err:
answer("Who is the President of the United States?")
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "unknown operation")
