[Tutor] Built In Functions

[Rafael Knuth]

I just wrote a unittest for this function here:

def PositiveCalculator(*summands):
    if all(x > 0 for x in summands):
        return sum(summands)
    else:
        raise ValueError("negative value")

Here's the test (I want to test whether the function works if the user
enters floats instead of integers) :

import unittest
from all_any import PositiveCalculator

class TestCalculator(unittest.TestCase):
    def test_floats(self):
        self.assertTrue(PositiveCalculator(3.45, 54.3, 5.62))

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

For some reason the test runs through without giving me any output,
and I was wondering what I am doing wrong here?

Raf




On Tue, Dec 17, 2013 at 4:56 PM, Rafael Knuth <rafael.knuth at gmail.com> wrote:
>>> def check_values(a, b):
>>>      if all(number >= 0 for number in range(a, b)):
>>>          return True
>>>      else:
>>>          raise ValueError("negative number")
>>>
>>> And:
>>> def PositiveCalculator(a, b):
>>>      if a > 0 and b > 0:
>>>          return a + b
>>>      else:
>>>          raise ValueError("negative number")
>>
>>
>> So zero is now considered a negative number?
>
> Thanks ;-)
> if a >= 0 and b >= 0