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evaluateScript example
public function testDrupalSettingsCachingRegression() {
$this->drupalGet('ajax-test/dialog');
$assert = $this->assertSession();
$session = $this->getSession();
// Insert a fake library into the already loaded library settings. $fake_library = 'fakeLibrary/fakeLibrary';
$session->evaluateScript("drupalSettings.ajaxPageState.libraries = drupalSettings.ajaxPageState.libraries + ',$fake_library';");
$libraries = $session->evaluateScript('drupalSettings.ajaxPageState.libraries');
// Test that the fake library is set. $this->assertStringContainsString($fake_library, $libraries);
// Click on the AJAX link. $this->clickLink('Link 8 (ajax)');
$assert->assertWaitOnAjaxRequest();
// Test that the fake library is still set after the AJAX call. $libraries = $session->evaluateScript('drupalSettings.ajaxPageState.libraries');
// The "Add Node" link triggers an off-canvas dialog with an add node form
// that includes CKEditor.
$page->clickLink('Add Node');
$assert_session->waitForElementVisible('css', '#drupal-off-canvas-wrapper');
$assert_session->assertWaitOnAjaxRequest();
$styles = $assert_session->elementExists('css', 'style#ckeditor5-off-canvas-reset');
$this->stringContains('#drupal-off-canvas-wrapper [data-drupal-ck-style-fence]', $styles->getText());
$assert_session->elementExists('css', '.ck');
$ckeditor_toolbar_bg_color = $this->getSession()->evaluateScript('window.getComputedStyle(document.querySelector(\'.ck.ck-toolbar\')).backgroundColor');
$this->assertEquals('rgb(255, 255, 255)', $ckeditor_toolbar_bg_color, 'Toolbar background-color should be unaffected by off-canvas');
// Editable area should be visible. $assert_session->elementExists('css', '.ck .ck-content');
$ckeditor_editable_bg_color = $this->getSession()->evaluateScript('window.getComputedStyle(document.querySelector(\'.ck.ck-content\')).backgroundColor');
$this->assertEquals('rgb(255, 255, 255)', $ckeditor_editable_bg_color, 'Content background-color should be unaffected by off-canvas');
}
}
$assert_session->waitForElementVisible('css', '#drupal-off-canvas-wrapper');
$assert_session->assertWaitOnAjaxRequest();
$styles = $assert_session->elementExists('css', 'style#ckeditor5-off-canvas-reset');
$this->stringContains('#drupal-off-canvas-wrapper [data-drupal-ck-style-fence]', $styles->getText());
$assert_session->elementExists('css', '.ck');
$ckeditor_toolbar_bg_color = $this->getSession()->evaluateScript('window.getComputedStyle(document.querySelector(\'.ck.ck-toolbar\')).backgroundColor');
$this->assertEquals('rgb(255, 255, 255)', $ckeditor_toolbar_bg_color, 'Toolbar background-color should be unaffected by off-canvas');
// Editable area should be visible. $assert_session->elementExists('css', '.ck .ck-content');
$ckeditor_editable_bg_color = $this->getSession()->evaluateScript('window.getComputedStyle(document.querySelector(\'.ck.ck-content\')).backgroundColor');
$this->assertEquals('rgb(255, 255, 255)', $ckeditor_editable_bg_color, 'Content background-color should be unaffected by off-canvas');
}
}
$javascript = <<<JS
(function(){
return window.performance
.getEntries()
.filter(function (entry) {
return entry.initiatorType == 'fetch' && entry.name.indexOf('/media/test_format/preview') !== -1;
})
.pop()
.transferSize;
})()
JS;
return $this->getSession()->evaluateScript($javascript);
}
/** * Ensure media preview isn't clickable. */
public function testMediaPointerEvent() {
$entityViewDisplay = EntityViewDisplay::load('media.image.view_mode_1');
$thumbnail = $entityViewDisplay->getComponent('thumbnail');
$thumbnail['settings']['image_link'] = 'file';
$entityViewDisplay->setComponent('thumbnail', $thumbnail);
$entityViewDisplay->save();
return $this->getSession()->evaluateScript($javascript);
}
/** * Ensure media preview isn't clickable. */
public function testMediaPointerEvent() {
$entityViewDisplay = EntityViewDisplay::load('media.image.view_mode_1');
$thumbnail = $entityViewDisplay->getComponent('thumbnail');
$thumbnail['settings']['image_link'] = 'file';
$entityViewDisplay->setComponent('thumbnail', $thumbnail);
$entityViewDisplay->save();
protected $defaultTheme = 'stark';
/** * Tests AjaxFocusFirstCommand on a page. */
public function testFocusFirst() {
$page = $this->getSession()->getPage();
$assert_session = $this->assertSession();
$this->drupalGet('ajax-test/focus-first');
$has_focus_id = $this->getSession()->evaluateScript('document.activeElement.id');
$this->assertNotContains($has_focus_id, ['edit-first-input', 'edit-first-container-input']);
// Confirm that focus does not change if the selector targets a // non-focusable container containing no tabbable elements. $page->pressButton('SelectorNothingTabbable');
$this->assertNotNull($assert_session->waitForElementVisible('css', '#edit-selector-has-nothing-tabbable[data-has-focus]'));
$has_focus_id = $this->getSession()->evaluateScript('document.activeElement.id');
$this->assertEquals('edit-selector-has-nothing-tabbable', $has_focus_id);
// Confirm that focus does not change if the page has no match for the // provided selector.
$this->assertNotEmpty($iframe_url['query']);
$query = [];
parse_str($iframe_url['query'], $query);
$this->assertSame($video_url, $query['url']);
$this->assertNotEmpty($query['hash']);
// Ensure that the outer iframe's width respects the formatter settings. $this->assertSame('240', $iframe->getAttribute('width'));
// Check the inner iframe to make sure that CSS has been applied to scale it // correctly, regardless of whatever its width attribute may be (the fixture // hard-codes it to 480). $inner_frame = 'frames[0].document.querySelector("iframe")';
$this->assertSame('480', $session->evaluateScript("$inner_frame.getAttribute('width')"));
$this->assertLessThanOrEqual(240, $session->evaluateScript("$inner_frame.clientWidth"));
// The oEmbed content iFrame should be visible. $assert_session->elementExists('css', 'iframe.media-oembed-content');
// The thumbnail should not be displayed. $assert_session->elementNotExists('css', 'img');
// Load the media and check that all fields are properly populated. $media = Media::load(1);
$this->assertSame('Drupal Rap Video - Schipulcon09', $media->getName());
$this->assertSame('480', $media->field_string_width->value);
$query = [];
parse_str($iframe_url['query'], $query);
$this->assertSame($video_url, $query['url']);
$this->assertNotEmpty($query['hash']);
// Ensure that the outer iframe's width respects the formatter settings. $this->assertSame('240', $iframe->getAttribute('width'));
// Check the inner iframe to make sure that CSS has been applied to scale it // correctly, regardless of whatever its width attribute may be (the fixture // hard-codes it to 480). $inner_frame = 'frames[0].document.querySelector("iframe")';
$this->assertSame('480', $session->evaluateScript("$inner_frame.getAttribute('width')"));
$this->assertLessThanOrEqual(240, $session->evaluateScript("$inner_frame.clientWidth"));
// The oEmbed content iFrame should be visible. $assert_session->elementExists('css', 'iframe.media-oembed-content');
// The thumbnail should not be displayed. $assert_session->elementNotExists('css', 'img');
// Load the media and check that all fields are properly populated. $media = Media::load(1);
$this->assertSame('Drupal Rap Video - Schipulcon09', $media->getName());
$this->assertSame('480', $media->field_string_width->value);
$xpath", d, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue,
r = n.getBoundingClientRect(),
lx = (w.innerWidth || e.clientWidth),
ly = (w.innerHeight || e.clientHeight);
return t(r, lx, ly);
}($test_javascript_function));
JS;
// Check the visibility by injecting and executing the full JavaScript test // script in the page. return $this->session->evaluateScript($full_javascript_visibility_test);
}
/** * Passes if the raw text IS NOT found escaped on the loaded page. * * Raw text refers to the raw HTML that the page generated. * * @param string $raw * Raw (HTML) string to look for. */
public function assertNoEscaped($raw) {
// Check the visibility by injecting and executing the full JavaScript test // script in the page. return $this->session->evaluateScript($full_javascript_visibility_test);
}
/** * Passes if the raw text IS NOT found escaped on the loaded page. * * Raw text refers to the raw HTML that the page generated. * * @param string $raw * Raw (HTML) string to look for. */
public function assertNoEscaped($raw) {
$this->clickContextualLink('#block-branding', 'Test Link with Ajax', FALSE);
$this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', '#drupal-modal'));
$this->assertSession()->elementContains('css', '#drupal-modal', 'Everything is contextual!');
$this->getSession()->executeScript('document.querySelector("#block-branding .trigger").addEventListener("focus", (e) => e.target.classList.add("i-am-focused"))');
$this->getSession()->getPage()->pressButton('Close');
$this->assertSession()->assertNoElementAfterWait('css', 'ui.dialog');
// When the dialog is closed, the opening contextual link is now inside a // collapsed container, so focus should be routed to the contextual link // toggle button. $this->assertNotNull($this->assertSession()->waitForElement('css', '.trigger.i-am-focused'), $this->getSession()->getPage()->find('css', '#block-branding')->getOuterHtml());
$this->assertJsCondition('document.activeElement === document.querySelector("#block-branding button.trigger")', 10000, 'Focus should be on the contextual trigger, but instead is at ' . $this->getSession()->evaluateScript('document.activeElement.outerHTML'));
// Check to make sure that page was not reloaded. $this->assertSession()->pageTextContains($current_page_string);
// Test clicking contextual link with toolbar. $this->container->get('module_installer')->install(['toolbar']);
$this->grantPermissions(Role::load(Role::AUTHENTICATED_ID), ['access toolbar']);
$this->drupalGet('user');
$this->assertSession()->assertWaitOnAjaxRequest();
// Click "Edit" in toolbar to show contextual links.
$this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', '#drupal-modal'));
$this->assertSession()->elementContains('css', '#drupal-modal', 'Everything is contextual!');
$this->getSession()->executeScript('document.querySelector("#block-branding .trigger").addEventListener("focus", (e) => e.target.classList.add("i-am-focused"))');
$this->getSession()->getPage()->pressButton('Close');
$this->assertSession()->assertNoElementAfterWait('css', 'ui.dialog');
// When the dialog is closed, the opening contextual link is now inside a // collapsed container, so focus should be routed to the contextual link // toggle button. $this->assertNotNull($this->assertSession()->waitForElement('css', '.trigger.i-am-focused'), $this->getSession()->getPage()->find('css', '#block-branding')->getOuterHtml());
$this->assertJsCondition('document.activeElement === document.querySelector("#block-branding button.trigger")', 10000, 'Focus should be on the contextual trigger, but instead is at ' . $this->getSession()->evaluateScript('document.activeElement.outerHTML'));
// Check to make sure that page was not reloaded. $this->assertSession()->pageTextContains($current_page_string);
// Test clicking contextual link with toolbar. $this->container->get('module_installer')->install(['toolbar']);
$this->grantPermissions(Role::load(Role::AUTHENTICATED_ID), ['access toolbar']);
$this->drupalGet('user');
$this->assertSession()->assertWaitOnAjaxRequest();
// Click "Edit" in toolbar to show contextual links.
// still on-going.
$result = $this->getSession()->wait(5000, '(typeof(jQuery)=="undefined" || (0 === jQuery.active && 0 === jQuery(\':animated\').length))');
if (!$result) {
// If the wait is unsuccessful, there may still be an AJAX request in // progress. If we tear down now, then this AJAX request may fail with // missing database tables, because tear down will have removed them. // Rather than allow it to fail, throw an explicit exception now // explaining what the problem is. throw new \RuntimeException('Unfinished AJAX requests while tearing down a test');
}
$warnings = $this->getSession()->evaluateScript("JSON.parse(sessionStorage.getItem('js_testing_log_test.warnings') || JSON.stringify([]))");
foreach ($warnings as $warning) {
if (str_starts_with($warning, '[Deprecation]')) {
@trigger_error('Javascript Deprecation:' . substr($warning, 13), E_USER_DEPRECATED);
}
}
}
parent::tearDown();
}
/** * Triggers a test failure if a JavaScript error was encountered. * * @throws \PHPUnit\Framework\AssertionFailedError * * @postCondition */
if (!$result) {
// If the wait is unsuccessful, there may still be an AJAX request in // progress. If we tear down now, then this AJAX request may fail with // missing database tables, because tear down will have removed them. // Rather than allow it to fail, throw an explicit exception now // explaining what the problem is. throw new \RuntimeException('Unfinished AJAX requests while tearing down a test');
}
$warnings = $this->getSession()->evaluateScript("JSON.parse(sessionStorage.getItem('js_testing_log_test.warnings') || JSON.stringify([]))");
foreach ($warnings as $warning) {
if (str_starts_with($warning, '[Deprecation]')) {
@trigger_error('Javascript Deprecation:' . substr($warning, 13), E_USER_DEPRECATED);
}
}
}
parent::tearDown();
}
/** * Triggers a test failure if a JavaScript error was encountered. * * @throws \PHPUnit\Framework\AssertionFailedError * * @postCondition */
$this->drupalGet($form_path);
$page->pressButton("AJAX changed: Click to mark div changed with asterisk.");
$this->assertWaitPageContains('<div id="changed_div" class="ajax-changed"> <div id="changed_div_mark_this">This div can be marked as changed or not. <abbr class="ajax-changed" title="Changed">*</abbr> </div></div>');
// Tests the 'css' command. $page->pressButton("Set the '#box' div to be blue.");
$this->assertWaitPageContains('<div id="css_div" style="background-color: blue;">');
// Tests the 'data' command. $page->pressButton("AJAX data command: Issue command.");
$this->assertTrue($page->waitFor(10, function D) use ($session) {
return 'testvalue' === $session->evaluateScript('window.jQuery("#data_div").data("testkey")');
}));
// Tests the 'html' command. $page->pressButton("AJAX html: Replace the HTML in a selector.");
$this->assertWaitPageContains('<div id="html_div">replacement text</div>');
// Tests the 'insert' command. $page->pressButton("AJAX insert: Let client insert based on #ajax['method'].");
$this->assertWaitPageContains('<div id="insert_div">insert replacement textOriginal contents</div>');
// Tests the 'invoke' command.
$page->pressButton("AJAX changed: Click to mark div changed with asterisk.");
$this->assertWaitPageContains('<div id="changed_div" class="ajax-changed"> <div id="changed_div_mark_this">This div can be marked as changed or not. <abbr class="ajax-changed" title="Changed">*</abbr> </div></div>');
// Tests the 'css' command. $page->pressButton("Set the '#box' div to be blue.");
$this->assertWaitPageContains('<div id="css_div" style="background-color: blue;">');
// Tests the 'data' command. $page->pressButton("AJAX data command: Issue command.");
$this->assertTrue($page->waitFor(10, function D) use ($session) {
return 'testvalue' === $session->evaluateScript('window.jQuery("#data_div").data("testkey")');
}));
// Tests the 'html' command. $page->pressButton("AJAX html: Replace the HTML in a selector.");
$this->assertWaitPageContains('<div id="html_div">replacement text</div>');
// Tests the 'insert' command. $page->pressButton("AJAX insert: Let client insert based on #ajax['method'].");
$this->assertWaitPageContains('<div id="insert_div">insert replacement textOriginal contents</div>');
// Tests the 'invoke' command.
// Check that we can read the JS settings.
$js_settings = $this->getDrupalSettings();
$this->assertSame('azAZ09();.,\\\/-_{}', $js_settings['test-setting']);
// Dynamically change the setting using JavaScript. $script = <<<EndOfScript (function () { drupalSettings['test-setting'] = 'foo'; })(); EndOfScript;
$this->getSession()->evaluateScript($script);
// Check that the setting has been changed. $js_settings = $this->getDrupalSettings();
$this->assertSame('foo', $js_settings['test-setting']);
}
}
$this->assertSame('azAZ09();.,\\\/-_{}', $js_settings['test-setting']);
// Dynamically change the setting using JavaScript. $script = <<<EndOfScript (function () { drupalSettings['test-setting'] = 'foo'; })(); EndOfScript;
$this->getSession()->evaluateScript($script);
// Check that the setting has been changed. $js_settings = $this->getDrupalSettings();
$this->assertSame('foo', $js_settings['test-setting']);
}
}
protected function getElementVerticalPosition($css_selector, $position_type) {
$this->assertContains($position_type, ['top', 'bottom'], 'Expected position type.');
return (int) $this->getSession()->evaluateScript("document.querySelector('$css_selector').getBoundingClientRect().$position_type + window.pageYOffset");
}
/** * Moves mouse pointer to location of $selector. * * @param string $selector * CSS selector. */
protected function movePointerTo($selector) {
$driver_session = $this->getSession()->getDriver()->getWebDriverSession();
$element = $driver_session->element('css selector', $selector);
// 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);
}
/** * CKEditor 5's filter UI modifications should not break it for other editors. */
public function testUnavailableFiltersHiddenWhenSwitching() {
$page = $this->getSession()->getPage();
$assert_session = $this->assertSession();
$this->createNewTextFormat($page, $assert_session, 'unicorn');
$assert_session->assertWaitOnAjaxRequest();
$assert_session->pageTextNotContains('Filter settings');
return $this->getSession()->evaluateScript($javascript);
}
/** * CKEditor 5's filter UI modifications should not break it for other editors. */
public function testUnavailableFiltersHiddenWhenSwitching() {
$page = $this->getSession()->getPage();
$assert_session = $this->assertSession();
$this->createNewTextFormat($page, $assert_session, 'unicorn');
$assert_session->assertWaitOnAjaxRequest();
$assert_session->pageTextNotContains('Filter settings');
// Expected state values with the user tray open with horizontal
// orientation.
$expected = [
'orientation' => 'horizontal',
'hasActiveTab' => TRUE,
'activeTabId' => 'toolbar-item-user',
'activeTray' => 'toolbar-item-user-tray',
'isOriented' => TRUE,
'isFixed' => TRUE,
];
$toolbar_stored_state = JSON::decode(
$this->getSession()->evaluateScript("sessionStorage.getItem('Drupal.toolbar.toolbarState')")
);
// The userButtonMinWidth property will differ depending on the length of // the test-generated username, so it is checked differently and the value // is copied to the expected value array. $this->assertNotNull($toolbar_stored_state['userButtonMinWidth']);
$this->assertIsNumeric($toolbar_stored_state['userButtonMinWidth']);
$this->assertGreaterThan(60, $toolbar_stored_state['userButtonMinWidth']);
$expected['userButtonMinWidth'] = $toolbar_stored_state['userButtonMinWidth'];
$this->assertSame($expected, $toolbar_stored_state);
'orientation' => 'horizontal',
'hasActiveTab' => TRUE,
'activeTabId' => 'toolbar-item-user',
'activeTray' => 'toolbar-item-user-tray',
'isOriented' => TRUE,
'isFixed' => TRUE,
];
$toolbar_stored_state = JSON::decode(
$this->getSession()->evaluateScript("sessionStorage.getItem('Drupal.toolbar.toolbarState')")
);
// The userButtonMinWidth property will differ depending on the length of // the test-generated username, so it is checked differently and the value // is copied to the expected value array. $this->assertNotNull($toolbar_stored_state['userButtonMinWidth']);
$this->assertIsNumeric($toolbar_stored_state['userButtonMinWidth']);
$this->assertGreaterThan(60, $toolbar_stored_state['userButtonMinWidth']);
$expected['userButtonMinWidth'] = $toolbar_stored_state['userButtonMinWidth'];
$this->assertSame($expected, $toolbar_stored_state);
$body = '';
for ($i = 0; $i < 10; $i++) {
$body .= '<p>' . $this->randomMachineName(32) . '</p>';
}
$edit_url = $this->drupalCreateNode(['type' => 'article', 'body' => ['value' => $body, 'format' => 'test_format']])->toUrl('edit-form');
$this->drupalGet($edit_url);
$this->assertNotEmpty($assert_session->waitForElement('css', '#toolbar-bar'));
$this->assertNotEmpty($assert_session->waitForElement('css', '.ck-editor'));
// Ensure the body has enough height to enable scrolling. Scroll 110px from // top of body field to ensure CKEditor 5 toolbar is sticky. $this->getSession()->evaluateScript('document.body.style.height = "10000px";');
$this->getSession()->evaluateScript('location.hash = "#edit-body-0-value";');
$this->getSession()->evaluateScript('scroll(0, document.documentElement.scrollTop + 110);');
// Focus CKEditor 5 text editor. $javascript = <<<JS Drupal.CKEditor5Instances.get(document.getElementById("edit-body-0-value").dataset["ckeditor5Id"]).editing.view.focus(); JS;
$this->getSession()->evaluateScript($javascript);
$this->assertNotEmpty($assert_session->waitForElementVisible('css', '.ck-sticky-panel__placeholder'));
$toolbar_height = (int) $this->getSession()->evaluateScript('document.getElementById("toolbar-bar").offsetHeight');
$ckeditor5_toolbar_position = (int) $this->getSession()->evaluateScript("document.querySelector('.ck-toolbar').getBoundingClientRect().top");
for ($i = 0; $i < 10; $i++) {
$body .= '<p>' . $this->randomMachineName(32) . '</p>';
}
$edit_url = $this->drupalCreateNode(['type' => 'article', 'body' => ['value' => $body, 'format' => 'test_format']])->toUrl('edit-form');
$this->drupalGet($edit_url);
$this->assertNotEmpty($assert_session->waitForElement('css', '#toolbar-bar'));
$this->assertNotEmpty($assert_session->waitForElement('css', '.ck-editor'));
// Ensure the body has enough height to enable scrolling. Scroll 110px from // top of body field to ensure CKEditor 5 toolbar is sticky. $this->getSession()->evaluateScript('document.body.style.height = "10000px";');
$this->getSession()->evaluateScript('location.hash = "#edit-body-0-value";');
$this->getSession()->evaluateScript('scroll(0, document.documentElement.scrollTop + 110);');
// Focus CKEditor 5 text editor. $javascript = <<<JS Drupal.CKEditor5Instances.get(document.getElementById("edit-body-0-value").dataset["ckeditor5Id"]).editing.view.focus(); JS;
$this->getSession()->evaluateScript($javascript);
$this->assertNotEmpty($assert_session->waitForElementVisible('css', '.ck-sticky-panel__placeholder'));
$toolbar_height = (int) $this->getSession()->evaluateScript('document.getElementById("toolbar-bar").offsetHeight');
$ckeditor5_toolbar_position = (int) $this->getSession()->evaluateScript("document.querySelector('.ck-toolbar').getBoundingClientRect().top");
$this->clickLink('Add block');
$assert_session->assertWaitOnAjaxRequest();
// Get all blocks, for assertions later. $blocks = $page->findAll('css', '.js-layout-builder-categories li');
$categories = $page->findAll('css', '.js-layout-builder-category');
$filter = $assert_session->elementExists('css', '.js-layout-builder-filter');
// Set announce to ensure it is not cleared. $init_message = 'init message';
$session->evaluateScript("Drupal.announce('$init_message')");
// Test block filter does not take effect for 1 character. $filter->setValue('a');
$this->assertAnnounceContains($init_message);
$visible_rows = $this->filterVisibleElements($blocks);
$this->assertSameSize($blocks, $visible_rows);
// Get the Content Fields category, which will be closed before filtering. $contentFieldsCategory = $page->find('named', ['content', 'Content fields']);
// Link that belongs to the Content Fields category, to verify collapse. $promoteToFrontPageLink = $page->find('named', ['content', 'Promoted to front page']);
// Test that front page link is visible until Content Fields collapsed.
$assert_session->assertWaitOnAjaxRequest();
// Get all blocks, for assertions later. $blocks = $page->findAll('css', '.js-layout-builder-categories li');
$categories = $page->findAll('css', '.js-layout-builder-category');
$filter = $assert_session->elementExists('css', '.js-layout-builder-filter');
// Set announce to ensure it is not cleared. $init_message = 'init message';
$session->evaluateScript("Drupal.announce('$init_message')");
// Test block filter does not take effect for 1 character. $filter->setValue('a');
$this->assertAnnounceContains($init_message);
$visible_rows = $this->filterVisibleElements($blocks);
$this->assertSameSize($blocks, $visible_rows);
// Get the Content Fields category, which will be closed before filtering. $contentFieldsCategory = $page->find('named', ['content', 'Content fields']);
// Link that belongs to the Content Fields category, to verify collapse. $promoteToFrontPageLink = $page->find('named', ['content', 'Promoted to front page']);
// Test that front page link is visible until Content Fields collapsed.