cinder/HACKING.rst
Julien Danjou d106e6f61b Stop using deprecated timeutils.isotime()
oslo_utils.timeutils.isotime() has been deprecated, stop using it, see:

  http://docs.openstack.org/developer/oslo.utils/api/timeutils.html#oslo_utils.timeutils.isotime

Change-Id: I0176f498db89a3a10c2474e4ae5c4b0929c65ece
2015-05-27 08:28:39 +02:00

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Cinder Style Commandments
=========================
- Step 1: Read the OpenStack Style Commandments
http://docs.openstack.org/developer/hacking/
- Step 2: Read on
Cinder Specific Commandments
----------------------------
- [N314] Check for vi editor configuration in source files.
- [N319] Validate that debug level logs are not translated
- [N322] Ensure default arguments are not mutable.
- [N323] Add check for explicit import of _() to ensure proper translation.
- [N325] str() and unicode() cannot be used on an exception. Remove or use six.text_type().
- [N327] assert_called_once is not a valid Mock method.
- [N328] LOG.info messages require translations `_LI()`.
- [N329] LOG.exception and LOG.error messages require translations `_LE()`.
- [N330] LOG.warning messages require translations `_LW()`.
- [N333] Ensure that oslo namespaces are used for namespaced libraries.
- [N336] Must use a dict comprehension instead of a dict constructor with a sequence of key-value pairs.
- [C301] timeutils.utcnow() from oslo_utils should be used instead of datetime.now().
- [C302] six.text_type should be used instead of unicode
- [C303] Ensure that there are no 'print()' statements in code that is being committed.
- [C304] Enforce no use of LOG.audit messages. LOG.info should be used instead.
- [C305] Prevent use of deprecated contextlib.nested.
- [C306] timeutils.strtime() must not be used (deprecated).
- [C307] LOG.warn is deprecated. Enforce use of LOG.warning.
- [C308] timeutils.isotime() must not be used (deprecated).
General
-------
- Use 'raise' instead of 'raise e' to preserve original traceback or exception being reraised::
except Exception as e:
...
raise e # BAD
except Exception:
...
raise # OKAY
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.
Cinder is transitioning to use mock, rather than mox, and so new tests should
use mock only.
For more information on creating unit tests and utilizing the testing
infrastructure in OpenStack Cinder, please read the Cinder testing
`README.rst <https://github.com/openstack/cinder/blob/master/cinder/testing/README.rst>`_.