a11aef839e
Add documents for running unit and functional tests. Change-Id: I4616193dade844c5a774dd74aa1805452fd01a9e Closes-Bug: #1560615
165 lines
6.4 KiB
ReStructuredText
165 lines
6.4 KiB
ReStructuredText
==================
|
|
CINDERCLIENT Tests
|
|
==================
|
|
|
|
Unit Tests
|
|
==========
|
|
|
|
Cinderclient contains a suite of unit tests, in the cinderclient/tests/unit
|
|
directory.
|
|
|
|
Any proposed code change will be automatically rejected by the OpenStack
|
|
Jenkins server [#f1]_ if the change causes unit test failures.
|
|
|
|
Running the tests
|
|
-----------------
|
|
There are a number of ways to run unit tests currently, and there's a
|
|
combination of frameworks used depending on what commands you use. The
|
|
preferred method is to use tox, which calls ostestr via the tox.ini file.
|
|
To run all tests simply run::
|
|
|
|
tox
|
|
|
|
This will create a virtual environment, load all the packages from
|
|
test-requirements.txt and run all unit tests as well as run flake8 and hacking
|
|
checks against the code.
|
|
|
|
Note that you can inspect the tox.ini file to get more details on the available
|
|
options and what the test run does by default.
|
|
|
|
Running a subset of tests using tox
|
|
-----------------------------------
|
|
One common activity is to just run a single test, you can do this with tox
|
|
simply by specifying to just run py27 or py34 tests against a single test::
|
|
|
|
tox -epy27 -- -n cinderclient.tests.unit.v2.test_volumes.VolumesTest.test_attach
|
|
|
|
Or all tests in the test_volumes.py file::
|
|
|
|
tox -epy27 -- -n cinderclient.tests.unit.v2.test_volumes
|
|
|
|
For more information on these options and how to run tests, please see the
|
|
`ostestr documentation <http://docs.openstack.org/developer/os-testr/>`_.
|
|
|
|
Run tests wrapper script
|
|
------------------------
|
|
|
|
In addition you can also use the wrapper script run_tests.sh by simply
|
|
executing::
|
|
|
|
./run_tests.sh
|
|
|
|
This script is a wrapper around the testr testrunner and the flake8 checker.
|
|
Note that there has been talk around deprecating this wrapper and this method of
|
|
testing, it's currently available still but it may be good to get used to using
|
|
tox or even ostestr directly.
|
|
|
|
Documenation is left in place for those that still use it.
|
|
|
|
Flags
|
|
-----
|
|
|
|
The ``run_tests.sh`` script supports several flags. You can view a list of
|
|
flags by doing::
|
|
|
|
run_tests.sh -h
|
|
|
|
This will show the following help information::
|
|
Usage: ./run_tests.sh [OPTION]...
|
|
Run cinderclient's test suite(s)
|
|
|
|
-V, --virtual-env Always use virtualenv. Install automatically if not present
|
|
-N, --no-virtual-env Don't use virtualenv. Run tests in local environment
|
|
-s, --no-site-packages Isolate the virtualenv from the global Python environment
|
|
-r, --recreate-db Recreate the test database (deprecated, as this is now the default).
|
|
-n, --no-recreate-db Don't recreate the test database.
|
|
-f, --force Force a clean re-build of the virtual environment. Useful when dependencies have been added.
|
|
-u, --update Update the virtual environment with any newer package versions
|
|
-p, --pep8 Just run PEP8 and HACKING compliance check
|
|
-P, --no-pep8 Don't run static code checks
|
|
-c, --coverage Generate coverage report
|
|
-d, --debug Run tests with testtools instead of testr. This allows you to use the debugger.
|
|
-h, --help Print this usage message
|
|
--hide-elapsed Don't print the elapsed time for each test along with slow test list
|
|
--virtual-env-path <path> Location of the virtualenv directory
|
|
Default: $(pwd)
|
|
--virtual-env-name <name> Name of the virtualenv directory
|
|
Default: .venv
|
|
--tools-path <dir> Location of the tools directory
|
|
Default: $(pwd)
|
|
|
|
Note: with no options specified, the script will try to run the tests in a virtual environment,
|
|
If no virtualenv is found, the script will ask if you would like to create one. If you
|
|
prefer to run tests NOT in a virtual environment, simply pass the -N option.
|
|
|
|
Because ``run_tests.sh`` is a wrapper around testr, it also accepts the same
|
|
flags as testr. See the the documentation for details about these additional flags:
|
|
`ostestr documentation <http://docs.openstack.org/developer/os-testr/>`_.
|
|
|
|
.. _nose options documentation: http://readthedocs.org/docs/nose/en/latest/usage.html#options
|
|
|
|
Suppressing logging output when tests fail
|
|
------------------------------------------
|
|
|
|
By default, when one or more unit test fails, all of the data sent to the
|
|
logger during the failed tests will appear on standard output, which typically
|
|
consists of many lines of texts. The logging output can make it difficult to
|
|
identify which specific tests have failed, unless your terminal has a large
|
|
scrollback buffer or you have redirected output to a file.
|
|
|
|
You can suppress the logging output by calling ``run_tests.sh`` with the nose
|
|
flag::
|
|
|
|
--nologcapture
|
|
|
|
Virtualenv
|
|
----------
|
|
|
|
By default, the tests use the Python packages installed inside a
|
|
virtualenv [#f2]_. (This is equivalent to using the ``-V, --virtualenv`` flag).
|
|
If the virtualenv does not exist, it will be created the first time the tests
|
|
are run.
|
|
|
|
If you wish to recreate the virtualenv, call ``run_tests.sh`` with the flag::
|
|
|
|
-f, --force
|
|
|
|
Recreating the virtualenv is useful if the package dependencies have changed
|
|
since the virtualenv was last created. If the ``requirements.txt`` or
|
|
``tools/install_venv.py`` files have changed, it's a good idea to recreate the
|
|
virtualenv.
|
|
|
|
By default, the unit tests will see both the packages in the virtualenv and
|
|
the packages that have been installed in the Python global environment. In
|
|
some cases, the packages in the Python global environment may cause a conflict
|
|
with the packages in the virtualenv. If this occurs, you can isolate the
|
|
virtualenv from the global environment by using the flag::
|
|
|
|
-s, --no-site packages
|
|
|
|
If you do not wish to use a virtualenv at all, use the flag::
|
|
|
|
-N, --no-virtual-env
|
|
|
|
Gotchas
|
|
-------
|
|
|
|
**Running Tests from Shared Folders**
|
|
|
|
If you are running the unit tests from a shared folder, you may see tests start
|
|
to fail or stop completely as a result of Python lockfile issues. You
|
|
can get around this by manually setting or updating the following line in
|
|
``cinder/tests/conf_fixture.py``::
|
|
|
|
CONF['lock_path'].SetDefault('/tmp')
|
|
|
|
Note that you may use any location (not just ``/tmp``!) as long as it is not
|
|
a shared folder.
|
|
|
|
.. rubric:: Footnotes
|
|
|
|
.. [#f1] See :doc:`jenkins`.
|
|
|
|
.. [#f2] See :doc:`development.environment` for more details about the use of
|
|
virtualenv.
|