function MediaTest::testAlt

Tests the CKEditor 5 media plugin can override image media's alt attribute.

File

core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php, line 377

Class

MediaTest

@coversDefaultClass \Drupal\ckeditor5\Plugin\CKEditor5Plugin\Media @group ckeditor5 @group #slow @internal

Namespace

Code

protected function testAlt() : void {
    $page = $this->getSession()
        ->getPage();
    $assert_session = $this->assertSession();
    $this->drupalGet($this->host
        ->toUrl('edit-form'));
    $this->waitForEditor();
    // Wait for the media preview to load.
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '.ck-widget.drupal-media img'));
    // Test that by default no alt attribute is present on the drupal-media
    // element.
    $this->assertSourceAttributeSame('alt', NULL);
    // Test that the preview shows the alt value from the media field's
    // alt text.
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '.ck-widget.drupal-media img[alt*="default alt"]'));
    // Test that clicking the media widget triggers a CKEditor balloon panel
    // with a single button to override the alt text.
    $this->click('.ck-widget.drupal-media');
    $this->assertVisibleBalloon('[aria-label="Drupal Media toolbar"]');
    // Click the "Override media image alternative text" button.
    $this->getBalloonButton('Override media image alternative text')
        ->click();
    $this->assertVisibleBalloon('.ck-media-alternative-text-form');
    // Assert that the default alt text is visible in the UI.
    $assert_session->elementTextEquals('css', '.ck-media-alternative-text-form .ck-labeled-field-view__status', 'Leave blank to use the default alternative text: "default alt".');
    // Assert that the value is currently empty.
    $alt_override_input = $page->find('css', '.ck-balloon-panel .ck-media-alternative-text-form input[type=text]');
    $this->assertSame('', $alt_override_input->getValue());
    // Fill in the alt field and submit.
    // cSpell:disable-next-line
    $who_is_zartan = 'Zartan is the leader of the Dreadnoks.';
    $alt_override_input->setValue($who_is_zartan);
    $this->getBalloonButton('Save')
        ->click();
    // Assert that the img within the media embed within the CKEditor contains
    // the overridden alt text set in the dialog.
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '.ck-widget.drupal-media img[alt*="' . $who_is_zartan . '"]'));
    // Ensure that the Drupal Media widget doesn't have alt attribute.
    // @see https://www.drupal.org/project/drupal/issues/3248440
    $assert_session->elementNotExists('css', '.ck-widget.drupal-media[alt]');
    // Test `aria-label` attribute appears on the widget wrapper.
    $assert_session->elementExists('css', '.ck-widget.drupal-media [aria-label="Screaming hairy armadillo"]');
    // Test that the downcast drupal-media element now has the alt attribute
    // entered in the balloon.
    $this->assertSourceAttributeSame('alt', $who_is_zartan);
    // The alt field should now display the override instead of the default.
    $this->getBalloonButton('Override media image alternative text')
        ->click();
    $this->assertVisibleBalloon('.ck-media-alternative-text-form');
    $alt_override_input = $page->find('css', '.ck-balloon-panel .ck-media-alternative-text-form input[type=text]');
    $this->assertSame($who_is_zartan, $alt_override_input->getValue());
    // Assert that the default alt text is still visible in the UI.
    $assert_session->elementTextEquals('css', '.ck-media-alternative-text-form .ck-labeled-field-view__status', 'Leave blank to use the default alternative text: "default alt".');
    // Test the process again with a different alt text to make sure it works
    // the second time around.
    $cobra_commander_bio = 'The supreme leader of the terrorist organization Cobra';
    // Set the alt field to the new alt text.
    $alt_override_input->setValue($cobra_commander_bio);
    $this->getBalloonButton('Save')
        ->click();
    // Assert that the img within the media embed preview inside CKEditor 5
    // contains the overridden alt text set in the balloon.
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '.ck-widget.drupal-media img[alt*="' . $cobra_commander_bio . '"]'));
    // Test that the downcast drupal-media element now has the alt attribute
    // entered in the dialog.
    $this->assertSourceAttributeSame('alt', $cobra_commander_bio);
    // The default value of the alt field should now display the override
    // instead of the value on the media image field.
    $this->getBalloonButton('Override media image alternative text')
        ->click();
    $this->assertVisibleBalloon('.ck-media-alternative-text-form');
    $alt_override_input = $page->find('css', '.ck-balloon-panel .ck-media-alternative-text-form input[type=text]');
    $this->assertSame($cobra_commander_bio, $alt_override_input->getValue());
    // Test that setting alt value to two double quotes will signal to the
    // MediaEmbed filter to unset the attribute on the media image field.
    // We intentionally add a space after the two double quotes to test that the
    // string is trimmed to two quotes.
    $alt_override_input->setValue('"" ');
    $this->getBalloonButton('Save')
        ->click();
    // Verify that the two double quote empty alt indicator ('""') set in
    // the alt text form balloon has successfully resulted in a media image
    // field with the alt attribute present but without a value.
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '[data-media-embed-test-view-mode] img[alt=""]'));
    // Test that the downcast drupal-media element's alt attribute now has the
    // empty string indicator.
    $this->assertSourceAttributeSame('alt', '""');
    // Test that setting alt to back to an empty string within the balloon will
    // restore the default alt value saved in to the media image field of the
    // media item.
    $this->getBalloonButton('Override media image alternative text')
        ->click();
    $this->assertVisibleBalloon('.ck-media-alternative-text-form');
    // The 'decorative image' toggle is enabled because the alt was set to `""`.
    // Set the toggle to "off" to override the alt text value.
    $page->pressButton('Decorative image');
    $alt_override_input = $page->find('css', '.ck-balloon-panel .ck-media-alternative-text-form input[type=text]');
    $alt_override_input->setValue('');
    $this->getBalloonButton('Save')
        ->click();
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '.ck-widget.drupal-media img[alt*="default alt"]'));
    // Test that the downcast drupal-media element no longer has an alt
    // attribute.
    $this->assertSourceAttributeSame('alt', NULL);
}