9834b0a37f
tox command install dependencies from the ``requirements.txt``, ``test-requirements.txt`` and ``doc/requirements.txt`` files Change-Id: I21ee208d2484615ee3f9d9eca7602275382c920b
110 lines
2.6 KiB
ReStructuredText
110 lines
2.6 KiB
ReStructuredText
.. _running-tests:
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=============
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Running tests
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=============
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Kolla-ansible contains a suit of tests in the ``tests`` directory.
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Any proposed code change in gerrit is automatically rejected by the
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`Zuul CI system <https://docs.openstack.org/infra/system-config/zuulv3.html>`__
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if the change causes test failures.
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It is recommended for developers to run the test suite before submitting patch
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for review. This allows to catch errors as early as possible.
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Preferred way to run the tests
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The preferred way to run the unit tests is using ``tox``. It executes tests in
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isolated environment, by creating separate virtualenv and installing
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dependencies from the ``requirements.txt``, ``test-requirements.txt`` and
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``doc/requirements.txt`` files, so the only package you install is ``tox``
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itself:
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.. code-block:: console
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pip install tox
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For more information, see `the unit testing section of the Testing wiki page
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<https://wiki.openstack.org/wiki/Testing#Unit_Tests>`_. For example:
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To run the default set of tests:
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.. code-block:: console
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tox
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To run the Python 3.8 tests:
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.. code-block:: console
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tox -e py38
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To run the style tests:
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.. code-block:: console
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tox -e linters
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To run multiple tests separate items by commas:
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.. code-block:: console
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tox -e py38,linters
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Running a subset of tests
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-------------------------
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Instead of running all tests, you can specify an individual directory, file,
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class or method that contains test code, i.e. filter full names of tests by a
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string.
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To run the tests located only in the ``kolla-ansible/tests``
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directory use:
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.. code-block:: console
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tox -e py38 kolla-ansible.tests
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To run the tests of a specific file
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``kolla-ansible/tests/test_kolla_docker.py``:
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.. code-block:: console
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tox -e py38 test_kolla_docker
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To run the tests in the ``ModuleArgsTest`` class in
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the ``kolla-ansible/tests/test_kolla_docker.py`` file:
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.. code-block:: console
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tox -e py38 test_kolla_docker.ModuleArgsTest
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To run the ``ModuleArgsTest.test_module_args`` test method in
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the ``kolla-ansible/tests/test_kolla_docker.py`` file:
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.. code-block:: console
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tox -e py38 test_kolla_docker.ModuleArgsTest.test_module_args
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Debugging unit tests
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--------------------
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In order to break into the debugger from a unit test we need to insert
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a breaking point to the code:
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.. code-block:: python
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import pdb; pdb.set_trace()
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Then run ``tox`` with the debug environment as one of the following:
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.. code-block:: console
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tox -e debug
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tox -e debug test_file_name.TestClass.test_name
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For more information, see the :oslotest-doc:`oslotest documentation
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<user/features.html#debugging-with-oslo-debug-helper>`.
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