bumblebee-status/docs/development/testing.rst

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Testing guidelines
==================
Writing unit tests
------------------
Some general hints:
- Tests should run with just Python Standard Library modules installed
(i.e. if there are additional requirements, the test should be skipped
if those are missing)
- Tests should run even if there is no network connectivity (please mock
urllib calls, for example)
- Tests should be stable and not require modifications every time the
tested code's implementation changes slightly (been there / done that)
Right now, ``bumblebee-status`` uses the ``pytest`` framework, and its
unit tests are located inside the ``tests/`` subdirectory.
First implication: To run the new tests, you need to have ``pytest``
installed, it is not part of the Python Standard Library. Most
distributions call the package ``python-pytest`` or ``python3-pytest``
or something similar (or you just use ``pip install --use pytest``)
Aside from that, you just write your tests using ``pytest`` as usual,
with one big caveat:
**If** you create a new directory inside ``tests/``, you need to
also create a file called ``__init__.py`` inside that, otherwise,
modules won't load correctly.
For examples, just browse the existing code. A good, minimal sample
for unit testing ``bumblebee-status`` is ``tests/core/test_event.py``.