[wp-trac] [WordPress Trac] #15386: WP_List_Table::get_columns does not work for plugins

[WordPress Trac]

#15386: WP_List_Table::get_columns does not work for plugins
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 Reporter:  ptahdunbar                |       Owner:  scribu
     Type:  defect (bug)              |      Status:  reopened
 Priority:  high                      |   Milestone:  Awaiting Review
Component:  General                   |     Version:  3.1
 Severity:  major                     |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
--------------------------------------+------------------------------

Comment (by bgoewert):

 == Test Report

 Patch tested: [https://github.com/WordPress/wordpress-develop/pull/3735 PR
 3735]

 === Environment
 * OS: Pop!_OS 22.04
 * Localhost: wordpress-develop & Docker Desktop
 * WordPress: trunk
 * Browser: Firefox 107, Chrome 108, GNOME Web 43 (WebKit 2.38.1)
 * Theme: Twenty Twenty-Two
 * Active Plugins: [https://core.trac.wordpress.org/attachment/ticket/15386
 /my-list-table-plugin-15386.php my-list-table-plugin-15386.php]

 === Steps to Reproduce

 1. Download and install
 [https://core.trac.wordpress.org/attachment/ticket/15386/my-list-table-
 plugin-15386.php my-list-table-plugin-15386.php].
 1. Ensure there is at lease one comment.
 1. Navigate to `/wp-admin/options-general.php?page=test`
 1. Notice that the table displays without any headers or rows.
 1. Apply or Checkout [https://github.com/WordPress/wordpress-
 develop/pull/3735 PR 3735].
 1. Refresh the test page `/wp-admin/options-general.php?page=test`

 === Expected Results

 - Table list displays comment headers and rows.

 === Actual Results

 - ✅ Issue resolved with patch.

 === Supplemental Artifacts
 //Before applying patch//

 [[Image(https://i.imgur.com/JTGBym1.png)]]

 //After applying patch//

 [[Image(https://i.imgur.com/m8WvJnH.png)]]

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/15386#comment:23>
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