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https://github.com/dropbox/dbx-unittest2pytest
Convert unittest asserts to pytest rewritten asserts.
https://github.com/dropbox/dbx-unittest2pytest
Last synced: 3 months ago
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Convert unittest asserts to pytest rewritten asserts.
- Host: GitHub
- URL: https://github.com/dropbox/dbx-unittest2pytest
- Owner: dropbox
- License: other
- Created: 2016-01-31T00:40:58.000Z (almost 9 years ago)
- Default Branch: master
- Last Pushed: 2023-05-09T21:42:59.000Z (over 1 year ago)
- Last Synced: 2024-07-21T01:02:16.086Z (4 months ago)
- Language: Python
- Homepage:
- Size: 24.4 KB
- Stars: 26
- Watchers: 10
- Forks: 8
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- starred-awesome - dbx-unittest2pytest - Convert unittest asserts to pytest rewritten asserts. (Python)
README
# dbx-unittest2pytest [](https://travis-ci.org/dropbox/dbx-unittest2pytest)
## Warning: this is not the official unittest2pytest!
Dropbox developed this package in parallel with (what became) the official `pytest-dev` package `unittest2pytest`, that
has the same name and does the same thing. It's the one that has the name `unittest2pytest` on PyPI, and it can convert
a few more assertions. Check it out [on Github](https://github.com/pytest-dev/unittest2pytest) or
[on PyPI](https://pypi.python.org/pypi/unittest2pytest). We've since renamed the project dbx-unittest2pytest to avoid confusion
# Description
Convert unittest asserts to pytest rewritten asserts.
py.test supports advanced assertion introspection, allowing it to provide more detailed error messages.
https://pytest.org/latest/assert.html#advanced-assertion-introspection
Check out this blog post detailing how it works.
http://pybites.blogspot.ie/2011/07/behind-scenes-of-pytests-new-assertion.html
tl;dr
If you are using py.test, then "assert a == b" is better than "self.assertEqual(a, b)"
# What's the advantage?
Pytest output before:
```
test/test_login.py:80: in test
self.assertEquals(login.call_count, 1)
E AssertionError: 0 != 1
assert login.call_count == 1
```
Pytest output after:
```
test/test_login.py:80: in test
E AssertionError: assert 0 == 1
E + where 0 = .call_count
```
# What happens to my test code?
Before:
```python
self.assertEqual(a, b)
self.assertEqual(a, None)
self.assertFalse(a)
```
After:
```python
assert a == b
assert a is None
assert not a
```
See unit tests for many more examples.
# Usage
```
dbx-unittest2pytest --help
dbx-unittest2pytest --fix=asserts
```
Run 4x parallel.
```
dbx-unittest2pytest --fix=asserts -j4 [filename/dirnames]
```
Write back to original files.
```
dbx-unittest2pytest --fix=asserts -w [filename/dirnames]
```
# Contributing
Contributions are welcome. Tests can be run with [tox][tox]. Lint with [flake8][flake8]
You'll have to agree to Dropbox's [CLA][CLA].
# Issues
If you encounter any problems, please [file an issue][issues] along with a detailed description.
[flake8]: https://flake8.readthedocs.org/en/latest/
[issues]: https://github.com/dropbox/dbx-unittest2pytest/issues
[tox]: https://tox.readthedocs.org/en/latest/
[CLA]: https://opensource.dropbox.com/cla/