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add.py
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add.py
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import unittest
def add(x, y):
for z in range(abs(y)):
if y > 0:
x += 1
else:
x += -1
return x
class AddTest(unittest.TestCase):
def test_returns_0_plus_0(self):
result = add(0, 0)
self.assertEqual(0, result)
def test_returns_1_plus_1(self):
result = add(1, 1)
self.assertEqual(2, result)
def test_returns_0_plus_8(self):
result = add(0, 8)
self.assertEqual(8, result)
def test_returns_minus_10_plus_1(self):
result = add(-10, 1)
self.assertEqual(-9, result)
def test_returns_1_plus_minus_10(self):
result = add(1, -10)
self.assertEqual(-9, result)
if __name__ == '__main__':
unittest.main(verbosity=2)