#18586: Rewrite unit tests migrated from doctests
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Reporter: koniiiik | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Uncategorized | Version: master
Severity: Normal | Keywords: unit tests
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 1 | UI/UX: 0
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There's quite a lot of unit tests that have been rewritten 1:1 from
doctests. These tests tend to verify all aspects of a certain feature at
once, they modify the state of the database throughout the whole test and
by the end of the test no one really knows what the database state is
supposed to be.
For example,
`modeltests.generic_relations.GenericRelationsTests.test_generic_relations`
walks through most of the features supported by `GenericForeignKeys`, it
is 130 lines long and in case the last assertion fails, you'll have to
spend ridiculous amounts of time figuring out what happened.
A likely incomplete list of similar tests:[[BR]]
`modeltests.basic.ModelTest.test_lookup`[[BR]]
`modeltests.basic.ModelTest.test_object_creation`[[BR]]
`modeltests.custom_columns.CustomColumnsTests.test_db_column`[[BR]]
`modeltests.custom_managers.CustomManagerTests.test_manager`[[BR]]
`modeltests.custom_pk.CustomPKTests.test_custom_pk`[[BR]]
`modeltests.defer.DeferTests.test_defer`[[BR]]
`modeltests.expressions.ExpressionsTests.test_filter`[[BR]]
`modeltests.field_subclassing.CustomField.test_custom_field`[[BR]]
`modeltests.files.FileStorageTests.test_files`[[BR]]
`modeltests.get_or_create.GetOrCreateTests.test_get_or_create`[[BR]]
`modeltests.m2m_recursive.RecursiveM2MTests.test_recursive_m2m`[[BR]]
`modeltests.m2m_signals.ManyToManySignalsTest`[[BR]]
`modeltests.m2m_through.M2mThroughTests`[[BR]]
`modeltests.model_formsets.ModelFormsetTests`[[BR]]
`modeltests.model_forms.OldFormForXTests.test_with_data` (This one has
more than 500 lines!)[[BR]]
`modeltests.model_inheritance.ModelInheritanceTests`[[BR]]
`modeltests.model_package.ModelPackageTests.test_model_packages`[[BR]]
`modeltests.order_with_respect_to.OrderWithRespectToTests.test_basic`[[BR]]
`modeltests.signals.SignalTests.test_basic`
I only went through modeltests/*/tests.py; I might have overlooked a few
tests.
This ticket is meant to track all of them; each time a test is updated, we
can strike it out in the list above and once there is no item left, we can
close this. The point is to make the test suite help developers as much as
possible.
--
Ticket URL: <https://code.djangoproject.com/ticket/18586>
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