[wp-trac] [WordPress Trac] #53010: Tests: introduce namespacing for the test classes

[WordPress Trac]

#53010: Tests: introduce namespacing for the test classes
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 Reporter:  jrf                       |       Owner:  hellofromTonya
     Type:  task (blessed)            |      Status:  assigned
 Priority:  normal                    |   Milestone:  Future Release
Component:  Build/Test Tools          |     Version:
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  docs, coding-
                                      |  standards
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Comment (by johnbillion):

 I share the concerns of @azaozz about the extraordinary maintenance burden
 that's placed on the  maintainers of an existing test codebase with each
 new release of PHPUnit, coupled with the narrowly supported range of PHP
 versions (although this is mitigated with the PHPUnit-Polyfills library
 that's in use).

 I would go as far as saying that I think the continued use of PHPUnit
 represents a maintainability risk for the WordPress project if there are
 breaking changes in each year's new release. The maintainer of PHPUnit is
 free to manage the project as they see fit, but it doesn't seem to fit
 with the way that the WordPress project is managed.

 * Does supporting PHPUnit 12 really require such a huge code churn so we
 can take advantage of approximately zero new features?
 * How can we make the required changes in a manageable fashion?
 * Are the file and test renaming are only required for improved coverage
 reporting? If so, can it be done piecemeal?
 * If test classes need to be split up, how can they practically be
 reviewed at scale? WordPress has 25,000 tests across 900 test classes.
 * Can we rely on the continued maintenance of PHPUnit-Polyfills?

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Ticket URL: <https://core.trac.wordpress.org/ticket/53010#comment:54>
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