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BUGFIX: Implement 3-arg subtraction #99

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BUGFIX: Implement 3-arg subtraction #99

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BUGFIX: Implement 3-arg subtraction
jocelynyan Feb 8, 2023
bec0069
added new function in calc.py
jocelynyan Feb 8, 2023
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3 changes: 3 additions & 0 deletions src/calc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,3 +18,6 @@ def sub(a, b):
```
"""
return a - b

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def sub(a, b, c=0):
return a - b - c
3 changes: 2 additions & 1 deletion src/calc_test.py
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Expand Up @@ -16,7 +16,8 @@ def test_add_zeroes(self):
def test_sub_2arg(self):
# Make sure 4 - 3 = 1
self.assertEqual(sub(4, 3), 1, 'subtracting three from four')

def test sub_3arg(self):
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     self.assertEqual(sub(4, 3, 1), 0, 'subtracting three and one from four')

if __name__ == '__main__':
unittest.main()