[wp-trac] [WordPress Trac] #61240: Add e2e test for maintenance mode and other edge cases

[WordPress Trac]

#61240: Add e2e test for maintenance mode and other edge cases
--------------------------------------+-------------------------
 Reporter:  swissspidy                |       Owner:  swissspidy
     Type:  enhancement               |      Status:  closed
 Priority:  normal                    |   Milestone:  6.6
Component:  Build/Test Tools          |     Version:
 Severity:  normal                    |  Resolution:  fixed
 Keywords:  has-patch has-unit-tests  |     Focuses:
--------------------------------------+-------------------------
Changes (by swissspidy):

 * owner:  (none) => swissspidy
 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 In [changeset:"58430" 58430]:
 {{{
 #!CommitTicketReference repository="" revision="58430"
 Build/Test Tools: add new end-to-end tests for edge cases such as
 maintenance mode.

 Sometimes errors only occur in unusual code paths such as the maintenance
 mode or installation screens. Due to lack of tests for these scenarios in
 core, such errors are usually only noticed very late. This change adds new
 end-to-end (e2e) tests to prevent regressions in the following areas:

 - Maintenance mode (presence of a `.maintenance` file)
 - Fatal error handler (simulated with an mu-plugin that causes an error)
 - Installation screen (verifying full installation flow & that there are
 no database errors)

 Thanks to these tests, an issue was already found and addressed in the
 default `wp_die` handler, as `wp_robots_noindex_embeds` and
 `wp_robots_noindex_search` used to cause PHP warnings due to `$wp_query`
 not existing.

 In the future, these tests can be extended to also test scenarios like
 localized error pages via `wp_load_translations_early()`.

 Fixes #61240.
 }}}

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/61240#comment:3>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform