[wp-trac] [WordPress Trac] #53911: Test modernization backwards-compatibility backports to help security test backports and extenders with WordPress cross-version testing

[WordPress Trac]

#53911: Test modernization backwards-compatibility backports to help security test
backports and extenders with WordPress cross-version testing
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 Reporter:  hellofromTonya         |       Owner:  johnbillion
     Type:  task (blessed)         |      Status:  assigned
 Priority:  normal                 |   Milestone:  5.9
Component:  Build/Test Tools       |     Version:
 Severity:  normal                 |  Resolution:
 Keywords:  has-patch 2nd-opinion  |     Focuses:
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Comment (by SergeyBiryukov):

 Replying to [comment:18 azaozz]:
 > Great, thanks for the explanation. Guessing that if there's a way to not
 load the polyfills when using latest PHPUnit, that will be backported to
 WP 5.2 - 5.8 too.

 The Polyfills are not only used to polyfill the latest PHPUnit
 functionality on older versions, but also as a solution to the `void`
 return type declaration added to fixture methods in PHPUnit 8.0, see
 [51568] and #46149 ticket description.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53911#comment:19>
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