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jsonutils provides multiple benefits in comparison to pure stdlib json (like using simplejson on Python 2.6). Similar patch was already merged before [1], but since it lacked hacking rule to enforce jsonutils usage, new occurrences of stdlib json module usage were introduced. This patch switches all the code to using jsonutils and adds a hacking rule to enforce the rule. The hacking rule requires that jsonutils module does not mimic as 'json' thru using import renames, so the code was updated not to rename the module when doing import. The hacking rule was shamelessly copied from the corresponding nova review [2]. [1]: https://review.openstack.org/#/c/99760/ [2]: https://review.openstack.org/111296/ Change-Id: Ie7a5bb76445e15cde9fbf9ff3d2101a014637b37
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Neutron Style Commandments =======================
- Step 1: Read the OpenStack Style Commandments http://docs.openstack.org/developer/hacking/
- Step 2: Read on
Neutron Specific Commandments --------------------------
- [N320] Validate that LOG messages, except debug ones, have translations
- [N321] Validate that jsonutils module is used instead of json
Creating Unit Tests
For every new feature, unit tests should be created that both test and (implicitly) document the usage of said feature. If submitting a patch for a bug that had no unit test, a new passing unit test should be added. If a submitted bug fix does have a unit test, be sure to add a new one that fails without the patch and passes with the patch.
All unittest classes must ultimately inherit from testtools.TestCase. In the Neutron test suite, this should be done by inheriting from neutron.tests.base.BaseTestCase.
All setUp and tearDown methods must upcall using the super() method. tearDown methods should be avoided and addCleanup calls should be preferred. Never manually create tempfiles. Always use the tempfile fixtures from the fixture library to ensure that they are cleaned up.