Given
$ cat compare.py
#!/usr/bin/env python3
import os
import sys
def get_args():
try:
args = sys.argv[1:]
except IndexError:
return
return [arg for arg in args if os.path.isfile(arg)]
if __name__ == "__main__":
print(get_args())
How can one unittest get_args()?
It seems to me that 'unittest'ing only works to test functions and
methods,
not programs.
Here's my attempt at a testing module:
$ cat testing.py
#!/usr/bin/env python3
import unittest
import compare_sizes
class CompareTesting(unittest.TestCase):
def setUp(self):
pass
def test_nothing(self):
self.assertEqual(not False, True)
def test_get_file_param(self):
self.assertTrue(compare_sizes.get_args() == ['file1', 'file2'])
if __name__ == '__main__':
unittest.main()
Is there a way that I can provide the file name command line parameters
to compare.py so that its get_args function can be tested?
Thanks in advance for any advice.
AlexK
ps I'm on Ubuntu14.4, using Python3.4.0
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