class CalculatorTest(unittest.TestCase):
def setUp(self):
self.calc = Calculator()
def test_last_answer_init(self):
value = self.calc.last_answer
self.assertEqual(value, 0.0, FAILURE)
def test_add(self):
value = self.calc.add(NUMBER_1, NUMBER_2)
self.assertEqual(value, 6.0, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_subtract(self):
value = self.calc.subtract(NUMBER_1, NUMBER_2)
self.assertEqual(value, 1.0, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_subtract_negative(self):
value = self.calc.subtract(NUMBER_2, NUMBER_1)
self.assertEqual(value, -1.0, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_multiply(self):
value = self.calc.multiply(NUMBER_1, NUMBER_2)
self.assertEqual(value, 6.0, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_divide(self):
value = self.calc.divide(NUMBER_1, NUMBER_2)
self.assertEqual(value, 1.5, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_divide_by_zero(self):
self.assertRaises(ZeroDivisionError, self.calc.divide, NUMBER_1, 0)
def test_div():
calc = Calculator()
assert calc.divide(5, 5) == 1
assert calc.divide(5, -5) == -1
assert calc.divide(5, 3) == 1
assert calc.divide(5, -3) == -2
assert calc.divide(5, '$') == 'invalid input'
assert calc.divide(5, 0) == "Could not calcuate with given input"
def test_divide(self):
cases = [
{
'first': 100,
'second': 200,
'expected': 0.5,
},
{
'first': 0,
'second': 200,
'expected': 0,
},
{
'first': 81,
'second': 9,
'expected': 9,
},
{
'first': 81,
'second': -9,
'expected': -9,
},
{
'first': -81,
'second': 9,
'expected': -9,
},
]
for case in cases:
first = case['first']
second = case['second']
self.assertEqual(case['expected'],
Calculator.divide(first, second))
self.assertRaises(ZeroDivisionError, Calculator.divide, 25, 0)
class TestCalculator(unittest.TestCase):
@classmethod
def setUpClass(self):
print("Set up class")
self.calc = Calculator()
# Create an instance of the calculator that can be used in all tests
@classmethod
def tearDownClass(self):
print("Tear down class")
def test_add(self):
self.assertEqual(self.calc.add(2, 7), 9)
# Write test methods for subtract, multiply, and divide
def test_subtract(self):
self.assertEqual(self.calc.subtract(7, 2), 5)
def test_multiply(self):
self.assertEqual(self.calc.multiply(2, 4), 8)
def test_divide(self):
self.assertEqual(self.calc.divide(8, 2), 4)
def test_divide_two_numbers(self):
calculator = Calculator()
calculator.divide(1,0)
class CalculatorTest(unittest.TestCase):
def setUp(self):
self.calc = Calculator()
def test_last_answer_init(self):
value = self.calc.last_answer
self.assertEqual(value, 0.0, FAILURE)
def test_add(self):
value = self.calc.add(NUMBER_1, NUMBER_2)
self.assertEqual(value, 5.0, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_subtract(self):
value = self.calc.subtract(NUMBER_1, NUMBER_2)
self.assertEqual(value, 1.0, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_subtract_negative(self):
value = self.calc.subtract(NUMBER_2, NUMBER_1)
self.assertEqual(value, -1.0, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_multiply(self):
value = self.calc.multiply(NUMBER_1, NUMBER_2)
self.assertEqual(value, 6.0, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_divide(self):
value = self.calc.divide(NUMBER_1, NUMBER_2)
self.assertEqual(value, 1.5, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_divide_by_zero(self):
self.assertRaises(ZeroDivisionError, self.calc.divide, NUMBER_1, 0)
def test_max_greater(self):
value = self.calc.maximum(NUMBER_1, NUMBER_2)
self.assertEqual(value, NUMBER_1, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_max_less(self):
value = self.calc.maximum(NUMBER_2, NUMBER_1)
self.assertEqual(value, NUMBER_1, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_max_equal(self):
value = self.calc.maximum(NUMBER_1, NUMBER_1)
self.assertEqual(value, NUMBER_1, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_min_greater(self):
value = self.calc.minimum(NUMBER_1, NUMBER_2)
self.assertEqual(value, NUMBER_2, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_min_less(self):
value = self.calc.minimum(NUMBER_2, NUMBER_1)
self.assertEqual(value, NUMBER_2, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_min_equal(self):
value = self.calc.minimum(NUMBER_2, NUMBER_2)
self.assertEqual(value, NUMBER_2, FAILURE)
self.assertEqual(value, self.calc.last_answer, FAILURE)
def test_force_value(self):
self.calc._last_answer = 5
value = self.calc._last_answer
self.assertEqual(value, 5, FAILURE)
def tearDown(self):
pass
def test_divide(self):
# Test division
self.assertAlmostEqual(Calculator.divide(8, 2), 4)
self.assertAlmostEqual(Calculator.divide(9, 2), 4.5)
self.assertAlmostEqual(Calculator.divide(5, 4), 1.25)
def test_divide():
calculator = Calculator()
assert calculator.divide(5, 1) == 5
assert calculator.divide(9, 3) == 3
assert calculator.divide(9, -3) == -3