Unit tests for math equations

Question

I need to generate unit tests for a mathematical equation such as a= (b+c)* d and boolean expressions.Is there any methodology and/or utility to achieve this?

I'm sure there is.. but StackOverflow isn't a place for such a general shopping query. — user2864740, Dec 17 '15 at 07:05
What do you want to test about these equations ? That they parse correctly ? That they evaluate correctly ? Symbolic transformations ? ... — , Dec 17 '15 at 13:57
These are requirements. need to black box test the code written against them — user3048305, Dec 22 '15 at 08:24

score 1 · Accepted Answer · answered Dec 17 '15 at 09:51

Note:

Because of the vagueness of the question i'm going to assume the programming language one can use is variable. In this case Python uses a object oriented approach to unittesting.

Answer:

For most unittest problems in python, you can use the standard unittest library. An example case for the given equation can be:

import unittest

def test_equation(b,c,d):
    return (b+c) * d

class testEquation(unittest.TestCase):

    def setUp(self):
        pass

    def testEquationInput(self):
        b = 5
        c = 4
        d = 10
        self.assertEqual(test_equation(b,c,d), 90)

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

you can execute this code with:

python unittest test_module.py

or if you write a directory with unittests:

python -m unittest discover /path/to/test/directory

Unit tests for math equations

1 Answers1