API page: https://api.drupal.org/comment/reply/12094481
The documentation falsely states the method BrowserTestBase::drupalPostForm() would emulate AJAX submission, provided the $submit parameter is an array of the specified kind.
The array [ 'path' => '/support/request?ajax_form=1&_wrapper_format=drupal_ajax', 'triggering_element' => 'op' ] used as $submit parameter causes the method to crash with "preg_match() expects parameter 2 to be string, array given" which clearly shows that the $submit parameter can not be an array.
Please fix the documentation as it instantly misleads into faulty solution and time waste.
Closed: outdated
11.0 🔥
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
BrowserTestBase::drupalPostForm was removed in 2022 in #3261266: Remove deprecated code from the testing framework (base classes, listeners, etc) → . Usages were changed to $this->submitForm() which does not have documentation about emulating Ajax.
Therefore, closing as outdated.