Is there a way of running the same python test with different inputs

Question

Is there a way of running the same python test with multiple inputs? Ideally using unittest, but open to other libraries if not.

I'd like to be able to write something along the lines of

@inputs(1,2,3)
@inputs(4,5,9)
def test_my_test(self, a, b, c):
    self.assertEqual(a + b, c)

`unittest` itself doesn't provide something like this, but `pytest` does, and I've used the [`ddt` module](https://pypi.org/project/ddt/) in the past with `unittest`. — chepner, Jul 02 '21 at 14:51
@chepner`ddt` provides exactly what I'm looking for. If you add that as an answer I'll accept it. — Jim Jeffries, Jul 02 '21 at 15:18
Does this answer your question? [How do you generate dynamic (parameterized) unit tests in Python?](https://stackoverflow.com/questions/32899/how-do-you-generate-dynamic-parameterized-unit-tests-in-python) — Dirk Herrmann, Jul 10 '21 at 08:29

score 1 · Answer 1 · answered Jul 05 '21 at 20:10

Since Python 3.4, the subTest context manager provides a similar functionality:

import unittest


class MyTest(unittest.TestCase):
    def test_my_test(self):
        inputs = [
            (1,2,3),
            (4,5,9),
        ]
        for a, b, c in inputs:
            with self.subTest(a=a, b=b, c=c):
                self.assertEqual(a + b, c)

Is there a way of running the same python test with different inputs

1 Answers1