function AdminUiTest::getAjaxResponseCount

Gets the Drupal AJAX response count observed on this page.

Return value

int The number of completed XHR requests observed since the page was loaded.

File

core/modules/ckeditor5/tests/src/FunctionalJavascript/AdminUiTest.php, line 92

Class

AdminUiTest

Tests for CKEditor 5 in the admin UI.

Namespace

Code

protected function getAjaxResponseCount() : int {
    // Half a second should suffice for any of the test's DOM interactions to
    // have triggered an AJAX request, if any.
    try {
        $this->assertSession()
            ->assertWaitOnAjaxRequest(500);
    } catch (\RuntimeException $e) {
        throw new \LogicException('An AJAX request was still being processed, this suggests a assertWaitOnAjaxRequest() call is missing.');
    }
    // Now that there definitely is no more AJAX request in progress, count the
    // number of AJAX responses.
    $javascript = <<<JS
(function(){
  return window.performance
    .getEntries()
    .filter(entry => entry.initiatorType === 'xmlhttprequest' && entry.name.indexOf('_wrapper_format=drupal_ajax') !== -1)
    .length
})()
JS;
    return $this->getSession()
        ->evaluateScript($javascript);
}