Run unittest against installed packages

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I'm currently working on a project whose structure is:

my_package
│   README.md
|   setup.py
│
└───my_package
|   |   __init__.py
│   │   file1.py
│   │   file2.py
|   |   ...
│   └───subpackage
│       │   sub1.py
│       │   ...
│   
└───test
    |   __init__.py
    │   test_file1.py
    |   test_file2.py

I can run all my tests with python -m unittest discover -s test. Most of test_x.py files contain imports such as from my_package.file1 import Something. Hence, the unittest command will run all my tests against source code contained in my_package.

On the other hand, I created a private Pypi package from this package. In my CI, I would like to run my unit tests against installed files, rather than local source code.
import my_package.file1; print(my_package.file1.__file__) should then show a path to site-packages.

Is there a way to do so ?

Edit: I would like to keep my test folder separate from my_package folder as I do not intend to distribute my tests.

python-unittest python
1 Answers

To run discovery-tests against installed package do next thing:

Inside your package's directory ./test/ add file run.py with the following content:

Try it online!

import os, unittest

def load_tests(loader, standard_tests, pattern):
    this_dir = os.path.dirname(__file__)
    pattern = pattern or "test_*.py"
    top_level_dir = os.path.dirname(os.path.dirname(this_dir))
    package_tests = loader.discover(
        start_dir = this_dir, pattern = pattern, top_level_dir = top_level_dir,
    )
    standard_tests.addTests(package_tests)
    return standard_tests

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

Then running tests will be just as easy as python -m your_package.test.run.

If you want you can place run.py into your root directory, then just replace this_dir = os.path.dirname(__file__) with this_dir = os.path.dirname(__file__) + '/test/'. Then run tests through python -m your_package.run.

user_9415310
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