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141 lines
4.9 KiB
ReStructuredText
Testing Ansible
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===============
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How to run and create tests for the Ansible core engine and modules with ``ansible-test``.
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Requirements
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============
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There are no special requirements for running ``ansible-test`` on Python 2.7 or later.
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The ``argparse`` package is required for Python 2.6.
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The requirements for each ``ansible-test`` command are covered later.
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Setup
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=====
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#. Fork the `ansible/ansible <https://github.com/ansible/ansible/>`_ repository on Git Hub.
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#. Clone your fork: ``git clone git@github.com:USERNAME/ansible.git``
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#. Install the optional ``argcomplete`` package for tab completion (highly recommended):
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#. ``pip install argcomplete``
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#. ``activate-global-python-argcomplete``
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#. Restart your shell to complete global activation.
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#. Configure your environment to run from your clone (once per shell): ``. hacking/env-setup``
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Test Environments
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=================
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Most ``ansible-test`` commands support running in one or more isolated test environments to simplify testing.
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Local
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-----
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The ``--local`` option runs tests locally without the use of an isolated test environment.
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This is the default behavior.
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Recommended for ``compile`` tests.
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See the `command requirements directory <runner/requirements/>`_ for the requirements for each ``ansible-test`` command.
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Requirements files are named after their respective commands.
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See also the `constraints <runner/requirements/constraints.txt>`_ applicable to all commands.
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Use the ``--requirements`` option to automatically install ``pip`` requirements relevant to the command being used.
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Docker
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------
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The ``--docker`` option runs tests in a docker container.
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Recommended for ``integration`` tests.
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This option accepts an optional docker container image.
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See the `list of supported docker images <runner/completion/docker.txt>`_ for options.
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Use the ``--docker-no-pull`` option to avoid pulling the latest container image.
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This is required when using custom local images that are not available for download.
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Tox
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---
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The ``--tox`` option run tests in a ``tox`` managed Python virtual environment.
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Recommended for ``windows-integration`` and ``units`` tests.
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The following Python versions are supported:
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* 2.6
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* 2.7
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* 3.5
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* 3.6
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By default, test commands will run against all supported Python versions when using ``tox``.
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Use the ``--python`` option to specify a single Python version to use for test commands.
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Remote
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------
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The ``--remote`` option runs tests in a cloud hosted environment.
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An API key is required to use this feature.
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Recommended for integration tests.
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See the `list of supported platforms and versions <runner/completion/remote.txt>`_ for additional details.
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General Usage
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=============
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Tests are run with the ``ansible-test`` command.
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Consult ``ansible-test --help`` for usage information not covered here.
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Use the ``--explain`` option to see what commands will be executed without actually running them.
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Running Tests
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=============
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There are four main categories of tests, each in their own directory.
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* `compile <compile/>`_ - Python syntax checking for supported versions. Examples:
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* ``ansible-test compile`` - Check syntax for all supported versions.
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* ``ansible-test compile --python 3.5`` - Check only Python 3.5 syntax.
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* `sanity <sanity/>`_ - Static code analysis and general purpose script-based tests. Examples:
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* ``ansible-test sanity --tox --python 2.7`` - Run all sanity tests on Python 2.7 using ``tox``.
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* ``ansible-test sanity --test pep8`` - Run the ``pep8`` test without ``tox``.
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* `integration <integration/>`_ - Playbook based tests for modules and core engine functionality. Examples:
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* ``ansible-test integration ping --docker`` - Run the ``ping`` module test using ``docker``.
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* ``ansible-test windows-integration windows/ci/`` - Run all Windows tests covered by CI.
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* `units <units/>`_ - API oriented tests using mock interfaces for modules and core engine functionality. Examples:
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* ``ansible-test units --tox`` - Run all unit tests on all supported Python versions using ``tox``.
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* ``ansible-test units --tox --python 2.7 test/units/vars/`` - Run specific tests on Python 2.7 using ``tox``.
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Consult each of the test directories for additional details on usage and requirements.
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Interactive Shell
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=================
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Use the ``ansible-test shell`` command to get an interactive shell in the same environment used to run tests. Examples:
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* ``ansible-test shell --docker`` - Open a shell in the default docker container.
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* ``ansible-test shell --tox --python 3.6`` - Open a shell in the Python 3.6 ``tox`` environment.
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Code Coverage
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=============
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Add the ``--coverage`` option to any test command to collect code coverage data.
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Reports can be generated in several different formats:
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* ``ansible-test coverage report`` - Console report.
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* ``ansible-test coverage html`` - HTML report.
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* ``ansible-test coverage xml`` - XML report.
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To clear data between test runs, use the ``ansible-test coverage erase`` command.
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