54 lines
2.5 KiB
ReStructuredText
54 lines
2.5 KiB
ReStructuredText
Neutron Style Commandments
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==========================
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- Step 1: Read the OpenStack Style Commandments
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http://docs.openstack.org/developer/hacking/
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- Step 2: Read on
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Neutron Specific Commandments
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-----------------------------
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- [N319] Validate that debug level logs are not translated
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- [N320] Validate that LOG messages, except debug ones, have translations
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- [N321] Validate that jsonutils module is used instead of json
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- [N322] Detect common errors with assert_called_once_with
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- [N324] Prevent use of deprecated contextlib.nested.
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- [N325] Python 3: Do not use xrange.
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- [N326] Python 3: do not use basestring.
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- [N327] Python 3: do not use dict.iteritems.
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- [N328] Detect wrong usage with assertEqual
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- [N329] Method's default argument shouldn't be mutable
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- [N330] Use assertEqual(*empty*, observed) instead of
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assertEqual(observed, *empty*)
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- [N331] Detect wrong usage with assertTrue(isinstance()).
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- [N332] Use assertEqual(expected_http_code, observed_http_code) instead of
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assertEqual(observed_http_code, expected_http_code).
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- [N333] Validate that LOG.warning is used instead of LOG.warn. The latter
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is deprecated.
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- [N334] Use unittest2 uniformly across Neutron.
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- [N340] Check usage of <module>.i18n (and neutron.i18n)
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- [N341] Check usage of _ from python builtins
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- [N343] Production code must not import from neutron.tests.*
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- [N344] Python 3: Do not use filter(lambda obj: test(obj), data). Replace it
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with [obj for obj in data if test(obj)].
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- [N345] Detect wrong usage with assertEqual(None, A) and assertEqual(A, None).
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Creating Unit Tests
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-------------------
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For every new feature, unit tests should be created that both test and
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(implicitly) document the usage of said feature. If submitting a patch for a
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bug that had no unit test, a new passing unit test should be added. If a
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submitted bug fix does have a unit test, be sure to add a new one that fails
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without the patch and passes with the patch.
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All unittest classes must ultimately inherit from testtools.TestCase. In the
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Neutron test suite, this should be done by inheriting from
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neutron.tests.base.BaseTestCase. If the third party unittest library has to
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be used directly then it is recommended to use unittest2 as it contains bug
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fixes to unittest for all versions of Python prior to version 3.5.
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All setUp and tearDown methods must upcall using the super() method.
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tearDown methods should be avoided and addCleanup calls should be preferred.
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Never manually create tempfiles. Always use the tempfile fixtures from
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the fixture library to ensure that they are cleaned up.
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