class TestCalculate(unittest.TestCase):
"""Unit Test for a simple calculator"""
def setUp(self):
"Hook method for setting up the test fixture before exercising it."
self.calculator = Calculate()
def test_add_method_return_correct(self):
""" Test the happy path, sum of two integers """
self.assertEqual(4, self.calculator.add(2, 2))
def test_add_method_return_failure(self):
"""Check for a false sum"""
self.assertNotEqual(4, self.calculator.add(2, 3))
def test_add_method_raises_typeerror_if_no_first_int(self):
"""Send no integers"""
self.assertRaises(TypeError, self.calculator.add, "Hello", 4)
def test_add_method_raises_typeerror_if_no_second_int(self):
"""Send no integers"""
self.assertRaises(TypeError, self.calculator.add, "Hello", 4)
def test_add_method_raises_typeerror_if_not_int(self):
"""Send no integers"""
self.assertRaises(TypeError, self.calculator.add, "Hello", "World")
def test_add_method_raises_typeerror_if_none(self):
"""Send no integers"""
self.assertRaises(TypeError, self.calculator.add)
def test_subtract_return_correct(self):
""" Test the happy path, substract of two integers """
self.assertEqual(4, self.calculator.subtract(10, 6))
def test_subtract_method_raises_typeerror_if_no_first_int(self):
"""Send no integers"""
self.assertRaises(TypeError, self.calculator.subtract, "Hello", 4)
def test_subtract_method_raises_typeerror_if_no_second_int(self):
"""Send no integers"""
self.assertRaises(TypeError, self.calculator.subtract, 4, "Hello")
