kolla-ansible/doc/source/contributor/running-tests.rst
Martin Hiner a13d83400f Rename kolla_docker to kolla_container
Changes name of ansible module kolla_docker to
kolla_container.

Change-Id: I13c676ed0378aa721a21a1300f6054658ad12bc7
Signed-off-by: Martin Hiner <m.hiner@partner.samsung.com>
2023-11-15 13:54:57 +01:00

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.. _running-tests:
=============
Running tests
=============
Kolla-ansible contains a suit of tests in the ``tests`` directory.
Any proposed code change in gerrit is automatically rejected by the
`Zuul CI system <https://docs.openstack.org/infra/system-config/zuulv3.html>`__
if the change causes test failures.
It is recommended for developers to run the test suite before submitting patch
for review. This allows to catch errors as early as possible.
Preferred way to run the tests
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The preferred way to run the unit tests is using ``tox``. It executes tests in
isolated environment, by creating separate virtualenv and installing
dependencies from the ``requirements.txt``, ``test-requirements.txt`` and
``doc/requirements.txt`` files, so the only package you install is ``tox``
itself:
.. code-block:: console
pip install tox
For more information, see `the unit testing section of the Testing wiki page
<https://wiki.openstack.org/wiki/Testing#Unit_Tests>`_. For example:
To run the default set of tests:
.. code-block:: console
tox
To run the Python 3.8 tests:
.. code-block:: console
tox -e py38
To run the style tests:
.. code-block:: console
tox -e linters
To run multiple tests separate items by commas:
.. code-block:: console
tox -e py38,linters
Running a subset of tests
-------------------------
Instead of running all tests, you can specify an individual directory, file,
class or method that contains test code, i.e. filter full names of tests by a
string.
To run the tests located only in the ``kolla-ansible/tests``
directory use:
.. code-block:: console
tox -e py38 kolla-ansible.tests
To run the tests of a specific file
``kolla-ansible/tests/test_kolla_container.py``:
.. code-block:: console
tox -e py38 test_kolla_container
To run the tests in the ``ModuleArgsTest`` class in
the ``kolla-ansible/tests/test_kolla_container.py`` file:
.. code-block:: console
tox -e py38 test_kolla_container.ModuleArgsTest
To run the ``ModuleArgsTest.test_module_args`` test method in
the ``kolla-ansible/tests/test_kolla_container.py`` file:
.. code-block:: console
tox -e py38 test_kolla_container.ModuleArgsTest.test_module_args
Debugging unit tests
--------------------
In order to break into the debugger from a unit test we need to insert
a breaking point to the code:
.. code-block:: python
import pdb; pdb.set_trace()
Then run ``tox`` with the debug environment as one of the following:
.. code-block:: console
tox -e debug
tox -e debug test_file_name.TestClass.test_name
For more information, see the :oslotest-doc:`oslotest documentation
<user/features.html#debugging-with-oslo-debug-helper>`.