Developing with OpenStackClient



The OpenStackClient team meets regularly on every Thursday. For details please refer to the wiki.


Using tox

Before running tests, you should have tox installed and available in your environment:

$ pip install tox

To execute the full suite of tests maintained within OpenStackClient, run:

$ tox


The first time you run tox, it will take additional time to build virtualenvs. You can later use the -r option with tox to rebuild your virtualenv in a similar manner.

To run tests for one or more specific test environments (for example, the most common configuration of Python 2.7 and PEP-8), list the environments with the -e option, separated by spaces:

$ tox -e py27,pep8

See tox.ini for the full list of available test environments.

Running functional tests

OpenStackClient also maintains a set of functional tests that are optimally designed to be run against OpenStack’s gate. Optionally, a developer may choose to run these tests against any OpenStack deployment, however depending on the services available, results will vary.

To run the entire suite of functional tests:

$ tox -e functional

To run a specific functional test:

$ tox -e functional -- --regex functional.tests.compute.v2.test_server

Running with PDB

Using PDB breakpoints with tox and testr normally doesn’t work since the tests fail with a BdbQuit exception rather than stopping at the breakpoint.

To run with PDB breakpoints during testing, use the debug tox environment rather than py27. Here’s an example, passing the name of a test since you’ll normally only want to run the test that hits your breakpoint:

$ tox -e debug opentackclient.tests.identity.v3.test_group

For reference, the debug tox environment implements the instructions here:

Building the Documentation

The documentation is generated with Sphinx using the tox command. To create HTML docs, run the following:

$ tox -e docs

The resultant HTML will be the doc/build/html directory.

Release Notes

The release notes for a patch should be included in the patch. See the Project Team Guide for more information on using reno in OpenStack.

If any of the following applies to the patch, a release note is required:

  • The deployer needs to take an action when upgrading
  • The plugin interface changes
  • A new feature is implemented
  • A command or option is removed
  • Current behavior is changed
  • A security bug is fixed

Reno is used to generate release notes. Please read the docs for details. In summary, use

$ tox -e venv -- reno new <bug-,bp-,whatever>

Then edit the sample file that was created and push it with your change.

To see the results:

$ git commit  # Commit the change because reno scans git log.

$ tox -e releasenotes

Then look at the generated release notes files in releasenotes/build/html in your favorite browser.

Testing new code

If a developer wants to test new code (feature, command or option) that they have written, OpenStackClient may be installed from source by running the following commands in the base directory of the project:

$ python develop


$ pip install -e .

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