Instantiate Python unittest.TestCase with arguments

Question

I would like to iterate over a list of items, and run an assertion on each of them. One example might be checking whether each number in a list is odd.

TestCas

Answer 1

I would go this way:

TestCase file containing test logic itself:

import my_config
from unittest import TestCase

class TestOdd(unittest.TestCase):
    def runTest(self):
        """Assert that the item is odd"""
        self.assertTrue(int(my_config.options['number']) %2==1, "Number should be odd")

then in the TestSuite file:

import argparse
import my_config
import TestCase

if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('-num', '--number', type=int, default=0)
    my_config.options = parser.parse_args()
    
    suite_case = unittest.TestLoader().loadTestsFromTestCase(TestCase)
    test_suite = unittest.TestSuite([suite_case])

    unittest.TextTestRunner(verbosity=1, failfast=True, buffer=False).run(test_suite)

my_config.py helping file:

options = {}

and then from command line we can execute:

python3 -m unittest TestSuite.py --number=1
python3 -m unittest TestSuite.py --number=2
.
.
python3 -m unittest TestSuite.py --number=1000

Or execution calling from command line could be done by using for cycle inside Shell script.