diff --git a/src/Annotation/EntityEmbedDisplay.php b/src/Annotation/EntityEmbedDisplay.php
index 0c21b18..3339088 100644
--- a/src/Annotation/EntityEmbedDisplay.php
+++ b/src/Annotation/EntityEmbedDisplay.php
@@ -55,4 +55,14 @@ class EntityEmbedDisplay extends Plugin {
    */
   public $no_ui = FALSE;
 
+  /**
+   * Alt and title access.
+   *
+   * Whether the plugin supports per-embed alt and title overrides for media
+   * entities with an image source.
+   *
+   * @var bool
+   */
+  public $supports_image_alt_and_title = FALSE;
+
 }
diff --git a/src/EntityEmbedDisplay/EntityEmbedDisplayBase.php b/src/EntityEmbedDisplay/EntityEmbedDisplayBase.php
index a696fbc..3cb86cd 100644
--- a/src/EntityEmbedDisplay/EntityEmbedDisplayBase.php
+++ b/src/EntityEmbedDisplay/EntityEmbedDisplayBase.php
@@ -237,7 +237,7 @@ abstract class EntityEmbedDisplayBase extends PluginBase implements ContainerFac
    *   The currently set context value.
    */
   public function getContextValue($name) {
-    return $this->context[$name];
+    return !empty($this->context[$name]) ? $this->context[$name] : NULL;
   }
 
   /**
@@ -323,6 +323,19 @@ abstract class EntityEmbedDisplayBase extends PluginBase implements ContainerFac
     return array_key_exists($name, $attributes) ? $attributes[$name] : $default;
   }
 
+  /**
+   * Checks if an attribute is set.
+   *
+   * @param string $name
+   *   The name of the attribute.
+   *
+   * @return bool
+   *   Returns TRUE if value is set.
+   */
+  public function hasAttribute($name) {
+    return array_key_exists($name, $this->getAttributeValues());
+  }
+
   /**
    * Gets the current language code.
    *
diff --git a/src/EntityEmbedDisplay/EntityEmbedDisplayManager.php b/src/EntityEmbedDisplay/EntityEmbedDisplayManager.php
index ce560df..51353ee 100644
--- a/src/EntityEmbedDisplay/EntityEmbedDisplayManager.php
+++ b/src/EntityEmbedDisplay/EntityEmbedDisplayManager.php
@@ -7,6 +7,7 @@ use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Plugin\DefaultPluginManager;
 use Drupal\Component\Plugin\Exception\PluginException;
+use Drupal\entity_embed\Plugin\entity_embed\EntityEmbedDisplay\MediaImageDecorator;
 
 /**
  * Provides an Entity Embed display plugin manager.
@@ -111,7 +112,12 @@ class EntityEmbedDisplayManager extends DefaultPluginManager {
    *   An array of valid plugin labels, keyed by plugin ID.
    */
   public function getDefinitionOptionsForContext(array $context) {
-    assert(empty(array_diff_key($context, ['entity' => TRUE, 'entity_type' => TRUE, 'embed_button' => TRUE])));
+    $values = [
+      'entity' => TRUE,
+      'entity_type' => TRUE,
+      'embed_button' => TRUE
+    ];
+    assert(empty(array_diff_key($context, $values)));
     $definitions = $this->getDefinitionsForContexts($context);
     $definitions = $this->filterExposedDefinitions($definitions);
     $options = array_map(function ($definition) {
@@ -176,4 +182,21 @@ class EntityEmbedDisplayManager extends DefaultPluginManager {
     }, $definitions);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function createInstance($plugin_id, array $configuration = []) {
+    $instance = parent::createInstance($plugin_id, $configuration);
+    $definition = $instance->getPluginDefinition();
+
+    if (empty($definition['supports_image_alt_and_title'])) {
+      return $instance;
+    }
+    else {
+      // Use decorator pattern to add alt and title fields to dialog when
+      // embedding media with image source.
+      return new MediaImageDecorator($instance);
+    }
+  }
+
 }
diff --git a/src/EntityEmbedDisplay/FieldFormatterEntityEmbedDisplayBase.php b/src/EntityEmbedDisplay/FieldFormatterEntityEmbedDisplayBase.php
index 038bba2..364c345 100644
--- a/src/EntityEmbedDisplay/FieldFormatterEntityEmbedDisplayBase.php
+++ b/src/EntityEmbedDisplay/FieldFormatterEntityEmbedDisplayBase.php
@@ -169,6 +169,11 @@ abstract class FieldFormatterEntityEmbedDisplayBase extends EntityEmbedDisplayBa
     $formatter = $this->getFieldFormatter();
     $formatter->prepareView([$fakeEntity->id() => $items]);
     $build = $formatter->viewElements($items, $this->getLangcode());
+    // Don't ever cache a representation of an embedded entity, since the host
+    // entity may be overriding specific values (such as an `alt` attribute)
+    // which means that this particular rendered representation is unique to the
+    // host entity, and hence nonsensical to cache separately anyway.
+    unset($build[0]['#cache']['keys']);
     // For some reason $build[0]['#printed'] is TRUE, which means it will fail
     // to render later. So for now we manually fix that.
     // @todo Investigate why this is needed.
diff --git a/src/Form/EntityEmbedDialog.php b/src/Form/EntityEmbedDialog.php
index e541cb0..160aa7a 100644
--- a/src/Form/EntityEmbedDialog.php
+++ b/src/Form/EntityEmbedDialog.php
@@ -488,7 +488,10 @@ class EntityEmbedDialog extends FormBase {
     ];
     $plugin_id = !empty($values['attributes']['data-entity-embed-display']) ? $values['attributes']['data-entity-embed-display'] : $entity_element['data-entity-embed-display'];
     if (!empty($plugin_id)) {
-      if (is_string($entity_element['data-entity-embed-display-settings'])) {
+      if (empty($entity_element['data-entity-embed-display-settings'])) {
+        $entity_element['data-entity-embed-display-settings'] = [];
+      }
+      elseif (is_string($entity_element['data-entity-embed-display-settings'])) {
         $entity_element['data-entity-embed-display-settings'] = Json::decode($entity_element['data-entity-embed-display-settings']);
       }
       $display = $this->entityEmbedDisplayManager->createInstance($plugin_id, $entity_element['data-entity-embed-display-settings']);
diff --git a/src/Plugin/Derivative/FieldFormatterDeriver.php b/src/Plugin/Derivative/FieldFormatterDeriver.php
index 26a8b06..d420acc 100644
--- a/src/Plugin/Derivative/FieldFormatterDeriver.php
+++ b/src/Plugin/Derivative/FieldFormatterDeriver.php
@@ -65,9 +65,22 @@ class FieldFormatterDeriver extends DeriverBase implements ContainerDeriverInter
     if (!isset($base_plugin_definition['field_type'])) {
       throw new \LogicException("Undefined field_type definition in plugin {$base_plugin_definition['id']}.");
     }
+
+    $no_media_image_decorator = [
+      'entity_reference_entity_id',
+      'entity_reference_label',
+    ];
+
     foreach ($this->formatterManager->getOptions($base_plugin_definition['field_type']) as $formatter => $label) {
       $this->derivatives[$formatter] = $base_plugin_definition;
       $this->derivatives[$formatter]['label'] = $label;
+
+      // The base entity embed display plugin annotation has opted into
+      // `supports_image_alt_and_title`. For some derivatives we know that they
+      // do not support this, so opt them back out.
+      if (in_array($formatter, $no_media_image_decorator, TRUE)) {
+        $this->derivatives[$formatter]['supports_image_alt_and_title'] = FALSE;
+      }
     }
     return $this->derivatives;
   }
diff --git a/src/Plugin/Derivative/ViewModeDeriver.php b/src/Plugin/Derivative/ViewModeDeriver.php
index f23d70e..ff21b55 100644
--- a/src/Plugin/Derivative/ViewModeDeriver.php
+++ b/src/Plugin/Derivative/ViewModeDeriver.php
@@ -64,6 +64,9 @@ class ViewModeDeriver extends DeriverBase implements ContainerDeriverInterface {
         $this->derivatives[$definition['id']]['view_mode'] = $view_mode;
         $this->derivatives[$definition['id']]['entity_types'] = $definition['targetEntityType'];
         $this->derivatives[$definition['id']]['no_ui'] = $mode;
+        if ($definition['targetEntityType'] === 'media') {
+          $this->derivatives[$definition['id']]['supports_image_alt_and_title'] = TRUE;
+        }
       }
     }
     return $this->derivatives;
diff --git a/src/Plugin/entity_embed/EntityEmbedDisplay/EntityReferenceFieldFormatter.php b/src/Plugin/entity_embed/EntityEmbedDisplay/EntityReferenceFieldFormatter.php
index ef5793d..8909dda 100644
--- a/src/Plugin/entity_embed/EntityEmbedDisplay/EntityReferenceFieldFormatter.php
+++ b/src/Plugin/entity_embed/EntityEmbedDisplay/EntityReferenceFieldFormatter.php
@@ -21,7 +21,8 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  *   id = "entity_reference",
  *   label = @Translation("Entity Reference"),
  *   deriver = "Drupal\entity_embed\Plugin\Derivative\FieldFormatterDeriver",
- *   field_type = "entity_reference"
+ *   field_type = "entity_reference",
+ *   supports_image_alt_and_title = TRUE
  * )
  */
 class EntityReferenceFieldFormatter extends FieldFormatterEntityEmbedDisplayBase {
diff --git a/src/Plugin/entity_embed/EntityEmbedDisplay/ImageFieldFormatter.php b/src/Plugin/entity_embed/EntityEmbedDisplay/ImageFieldFormatter.php
index 034e714..c175ded 100644
--- a/src/Plugin/entity_embed/EntityEmbedDisplay/ImageFieldFormatter.php
+++ b/src/Plugin/entity_embed/EntityEmbedDisplay/ImageFieldFormatter.php
@@ -178,7 +178,7 @@ class ImageFieldFormatter extends FileFieldFormatter {
       // double quotes in place of empty alt text only if that was filled
       // intentionally by the user.
       if (!empty($entity_element) && $entity_element['data-entity-embed-display'] == 'image:image') {
-        $alt = '""';
+        $alt = MediaImageDecorator::EMPTY_STRING;
       }
     }
 
@@ -211,7 +211,7 @@ class ImageFieldFormatter extends FileFieldFormatter {
   public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
     // When the alt attribute is set to two double quotes, transform it to the
     // empty string: two double quotes signify "empty alt attribute". See above.
-    if (trim($form_state->getValue(['attributes', 'alt'])) === '""') {
+    if (trim($form_state->getValue(['attributes', 'alt'])) === MediaImageDecorator::EMPTY_STRING) {
       $form_state->setValue(['attributes', 'alt'], '');
     }
   }
diff --git a/src/Plugin/entity_embed/EntityEmbedDisplay/MediaImageDecorator.php b/src/Plugin/entity_embed/EntityEmbedDisplay/MediaImageDecorator.php
new file mode 100644
index 0000000..9c9e43f
--- /dev/null
+++ b/src/Plugin/entity_embed/EntityEmbedDisplay/MediaImageDecorator.php
@@ -0,0 +1,269 @@
+<?php
+
+namespace Drupal\entity_embed\Plugin\entity_embed\EntityEmbedDisplay;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\entity_embed\EntityEmbedDisplay\EntityEmbedDisplayInterface;
+use Drupal\image\Plugin\Field\FieldType\ImageItem;
+use Drupal\media\MediaInterface;
+
+/**
+ * Decorator on all EntityEmbedDisplays that adds alt and title overriding.
+ */
+class MediaImageDecorator implements EntityEmbedDisplayInterface {
+
+  use StringTranslationTrait;
+
+  /**
+   * A string that signifies not to render the alt text.
+   *
+   * @const string
+   */
+  const EMPTY_STRING = '""';
+
+  /**
+   * The decorated EntityEmbedDisplay class.
+   *
+   * @var \Drupal\entity_embed\EntityEmbedDisplay\EntityEmbedDisplayInterface
+   */
+  private $decorated;
+
+  /**
+   * MediaImageDecorator constructor.
+   *
+   * @param \Drupal\entity_embed\EntityEmbedDisplay\EntityEmbedDisplayInterface $decorated
+   *   The decorated EntityEmbedDisplay plugin.
+   */
+  public function __construct(EntityEmbedDisplayInterface $decorated) {
+    $this->decorated = $decorated;
+  }
+
+  /**
+   * Passes through all unknown calls to the decorated object.
+   */
+  public function __call($method, $args) {
+    return call_user_func_array([$this->decorated, $method], $args);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function access(AccountInterface $account = NULL) {
+    return $this->decorated->access($account);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
+    return $this->decorated->validateConfigurationForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultConfiguration() {
+    return $this->decorated->defaultConfiguration();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function calculateDependencies() {
+    return $this->decorated->calculateDependencies();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getConfiguration() {
+    return $this->decorated->getConfiguration();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getPluginDefinition() {
+    return $this->decorated->getPluginDefinition();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getPluginId() {
+    return $this->decorated->getPluginId();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setConfiguration(array $configuration) {
+    return $this->decorated->setConfiguration($configuration);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $form = $this->decorated->buildConfigurationForm($form, $form_state);
+
+    /** @var \Drupal\Core\Entity\EntityInterface $entity */
+    $entity = $this->decorated->getEntityFromContext();
+
+    if ($image_field = $this->getMediaImageSourceField($entity)) {
+
+      $settings = $entity->{$image_field}->getItemDefinition()->getSettings();
+      $attributes = $this->getAttributeValues();
+
+      $alt = isset($attributes['alt']) ? $attributes['alt'] : $entity->{$image_field}->alt;
+      $title = isset($attributes['title']) ? $attributes['title'] : $entity->{$image_field}->title;
+
+      // Setting empty alt to double quotes. See ImageFieldFormatter.
+      if ($settings['alt_field_required'] && $alt === '') {
+        $alt = static::EMPTY_STRING;
+      }
+
+      if (!empty($settings['alt_field'])) {
+        // Add support for editing the alternate and title text attributes.
+        $form['alt'] = [
+          '#type' => 'textfield',
+          '#title' => $this->t('Alternate text'),
+          '#default_value' => $alt,
+          '#description' => $this->t('This text will be used by screen readers, search engines, or when the image cannot be loaded.'),
+          '#required' => $settings['alt_field_required'],
+          '#required_error' => $this->t('Alternative text is required.<br />(Only in rare cases should this be left empty. To create empty alternative text, enter <code>""</code> — two double quotes without any content).'),
+          '#maxlength' => 512,
+        ];
+      }
+
+      if (!empty($settings['title_field'])) {
+        $form['title'] = [
+          '#type' => 'textfield',
+          '#title' => $this->t('Title'),
+          '#default_value' => $title,
+          '#description' => t('The title is used as a tool tip when the user hovers the mouse over the image.'),
+          '#maxlength' => 1024,
+          '#required' => $settings['title_field_required'],
+        ];
+      }
+    }
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
+    /** @var \Drupal\Core\Entity\EntityInterface $entity */
+    $entity = $this->decorated->getEntityFromContext();
+    if ($image_field = $this->getMediaImageSourceField($entity)) {
+      $settings = $entity->{$image_field}->getItemDefinition()->getSettings();
+      $values = $form_state->getValue(['attributes', 'data-entity-embed-display-settings']);
+
+      if (!empty($settings['alt_field'])) {
+        // When the alt attribute is set to two double quotes, transform it to
+        // the empty string: two double quotes signify "empty alt attribute".
+        // See ImagefieldFormatter.
+        if (trim($values['alt']) === static::EMPTY_STRING) {
+          $values['alt'] = static::EMPTY_STRING;
+        }
+        // If the alt text is unchanged from the values set on the
+        // field, there's no need for the alt property to be set.
+        elseif ($values['alt'] === $entity->{$image_field}->alt) {
+          $values['alt'] = '';
+        }
+
+        $form_state->setValue(['attributes', 'alt'], $values['alt']);
+        $form_state->unsetValue([
+          'attributes',
+          'data-entity-embed-display-settings',
+          'alt',
+        ]);
+      }
+
+      if (!empty($settings['title_field'])) {
+        if (empty($values['title'])) {
+          $values['title'] = '';
+        }
+        // If the title text is unchanged from the values set on the
+        // field, there's no need for the title property to be set.
+        elseif ($values['title'] === $entity->{$image_field}->title) {
+          $values['title'] = '';
+        }
+
+        $form_state->setValue(['attributes', 'title'], $values['title']);
+        $form_state->unsetValue([
+          'attributes',
+          'data-entity-embed-display-settings',
+          'title',
+        ]);
+      }
+    }
+    $this->decorated->submitConfigurationForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function build() {
+    $build = $this->decorated->build();
+
+    /** @var \Drupal\Core\Entity\EntityInterface $entity */
+    $entity = $this->decorated->getEntityFromContext();
+
+    if ($image_field = $this->getMediaImageSourceField($entity)) {
+      $settings = $entity->{$image_field}->getItemDefinition()->getSettings();
+
+      if (!empty($settings['alt_field']) && $this->hasAttribute('alt')) {
+        $entity->{$image_field}->alt = $this->getAttributeValue('alt');
+        $entity->thumbnail->alt = $this->getAttributeValue('alt');
+      }
+
+      if (!empty($settings['title_field']) && $this->hasAttribute('title')) {
+        $entity->{$image_field}->title = $this->getAttributeValue('title');
+        $entity->thumbnail->title = $this->getAttributeValue('title');
+      }
+    }
+
+    return $build;
+  }
+
+  /**
+   * Get image field from source config.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   Embedded entity.
+   *
+   * @return string|null
+   *   String of image field name.
+   */
+  protected function getMediaImageSourceField(EntityInterface $entity) {
+    if (!$entity instanceof MediaInterface) {
+      return NULL;
+    }
+
+    try {
+      $field_definition = $entity->getSource()
+        ->getSourceFieldDefinition($entity->bundle->entity);
+      $field_name = $field_definition->getName();
+      $field = $entity->get($field_name);
+      $item = $field->first();
+      if (!empty($item) && $item instanceof ImageItem) {
+        // Check that either alt field or title field is enabled.
+        if ($field_definition->getSetting('alt_field') || $field_definition->getSetting('title_field')) {
+          return $field_name;
+        }
+      }
+    }
+    catch (\Exception $e) {
+      return NULL;
+    }
+
+    return NULL;
+  }
+
+}
diff --git a/tests/modules/entity_embed_translation_test/config/install/core.entity_form_display.node.article.default.yml b/tests/modules/entity_embed_test/config/install/core.entity_form_display.node.article.default.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/core.entity_form_display.node.article.default.yml
rename to tests/modules/entity_embed_test/config/install/core.entity_form_display.node.article.default.yml
diff --git a/tests/modules/entity_embed_test/config/install/core.entity_view_display.media.image.embed.yml b/tests/modules/entity_embed_test/config/install/core.entity_view_display.media.image.embed.yml
new file mode 100644
index 0000000..60ae55d
--- /dev/null
+++ b/tests/modules/entity_embed_test/config/install/core.entity_view_display.media.image.embed.yml
@@ -0,0 +1,29 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.media.image.field_media_image
+    - image.style.medium
+    - media.type.image
+  module:
+    - image
+    - user
+id: media.image.default
+targetEntityType: media
+bundle: image
+mode: embed
+content:
+  field_media_image:
+    type: image
+    weight: 2
+    region: content
+    label: hidden
+    settings:
+      image_style: medium
+      image_link: ''
+    third_party_settings: {  }
+hidden:
+  name: true
+  thumbnail: true
+  created: true
+  uid: true
diff --git a/tests/modules/entity_embed_test/config/install/core.entity_view_display.media.image.thumb.yml b/tests/modules/entity_embed_test/config/install/core.entity_view_display.media.image.thumb.yml
new file mode 100644
index 0000000..4c4338c
--- /dev/null
+++ b/tests/modules/entity_embed_test/config/install/core.entity_view_display.media.image.thumb.yml
@@ -0,0 +1,28 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - image.style.medium
+    - media.type.image
+  module:
+    - image
+    - user
+id: media.image.default
+targetEntityType: media
+bundle: image
+mode: thumb
+content:
+  thumbnail:
+    type: image
+    weight: 2
+    region: content
+    label: hidden
+    settings:
+      image_style: medium
+      image_link: ''
+    third_party_settings: {  }
+hidden:
+  name: true
+  field_media_image: true
+  created: true
+  uid: true
diff --git a/tests/modules/entity_embed_translation_test/config/install/core.entity_view_display.node.article.default.yml b/tests/modules/entity_embed_test/config/install/core.entity_view_display.node.article.default.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/core.entity_view_display.node.article.default.yml
rename to tests/modules/entity_embed_test/config/install/core.entity_view_display.node.article.default.yml
diff --git a/tests/modules/entity_embed_test/config/install/core.entity_view_mode.media.embed.yml b/tests/modules/entity_embed_test/config/install/core.entity_view_mode.media.embed.yml
new file mode 100644
index 0000000..6a87a05
--- /dev/null
+++ b/tests/modules/entity_embed_test/config/install/core.entity_view_mode.media.embed.yml
@@ -0,0 +1,9 @@
+langcode: en
+status: false
+dependencies:
+  module:
+    - media
+id: media.embed
+label: 'Embed'
+targetEntityType: media
+cache: true
diff --git a/tests/modules/entity_embed_test/config/install/core.entity_view_mode.media.thumb.yml b/tests/modules/entity_embed_test/config/install/core.entity_view_mode.media.thumb.yml
new file mode 100644
index 0000000..54f487c
--- /dev/null
+++ b/tests/modules/entity_embed_test/config/install/core.entity_view_mode.media.thumb.yml
@@ -0,0 +1,9 @@
+langcode: en
+status: false
+dependencies:
+  module:
+    - media
+id: media.thumb
+label: 'Thumb (View Mode)'
+targetEntityType: media
+cache: true
diff --git a/tests/modules/entity_embed_translation_test/config/install/editor.editor.full_html.yml b/tests/modules/entity_embed_test/config/install/editor.editor.full_html.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/editor.editor.full_html.yml
rename to tests/modules/entity_embed_test/config/install/editor.editor.full_html.yml
diff --git a/tests/modules/entity_embed_translation_test/config/install/embed.button.test_media_entity_embed.yml b/tests/modules/entity_embed_test/config/install/embed.button.test_media_entity_embed.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/embed.button.test_media_entity_embed.yml
rename to tests/modules/entity_embed_test/config/install/embed.button.test_media_entity_embed.yml
diff --git a/tests/modules/entity_embed_translation_test/config/install/embed.button.test_node.yml b/tests/modules/entity_embed_test/config/install/embed.button.test_node.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/embed.button.test_node.yml
rename to tests/modules/entity_embed_test/config/install/embed.button.test_node.yml
diff --git a/tests/modules/entity_embed_translation_test/config/install/field.field.media.image.field_media_image.yml b/tests/modules/entity_embed_test/config/install/field.field.media.image.field_media_image.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/field.field.media.image.field_media_image.yml
rename to tests/modules/entity_embed_test/config/install/field.field.media.image.field_media_image.yml
diff --git a/tests/modules/entity_embed_translation_test/config/install/field.field.node.article.body.yml b/tests/modules/entity_embed_test/config/install/field.field.node.article.body.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/field.field.node.article.body.yml
rename to tests/modules/entity_embed_test/config/install/field.field.node.article.body.yml
diff --git a/tests/modules/entity_embed_translation_test/config/install/field.storage.media.field_media_image.yml b/tests/modules/entity_embed_test/config/install/field.storage.media.field_media_image.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/field.storage.media.field_media_image.yml
rename to tests/modules/entity_embed_test/config/install/field.storage.media.field_media_image.yml
diff --git a/tests/modules/entity_embed_translation_test/config/install/filter.format.full_html.yml b/tests/modules/entity_embed_test/config/install/filter.format.full_html.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/filter.format.full_html.yml
rename to tests/modules/entity_embed_test/config/install/filter.format.full_html.yml
diff --git a/tests/modules/entity_embed_translation_test/config/install/media.type.image.yml b/tests/modules/entity_embed_test/config/install/media.type.image.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/media.type.image.yml
rename to tests/modules/entity_embed_test/config/install/media.type.image.yml
diff --git a/tests/modules/entity_embed_translation_test/config/install/node.type.article.yml b/tests/modules/entity_embed_test/config/install/node.type.article.yml
similarity index 100%
rename from tests/modules/entity_embed_translation_test/config/install/node.type.article.yml
rename to tests/modules/entity_embed_test/config/install/node.type.article.yml
diff --git a/tests/modules/entity_embed_test/entity_embed_test.info.yml b/tests/modules/entity_embed_test/entity_embed_test.info.yml
index 45e7865..9b44c30 100644
--- a/tests/modules/entity_embed_test/entity_embed_test.info.yml
+++ b/tests/modules/entity_embed_test/entity_embed_test.info.yml
@@ -3,3 +3,13 @@ type: module
 description: 'Support module for the Entity Embed module tests.'
 core: 8.x
 package: Testing
+dependencies:
+ - drupal:file
+ - drupal:image
+ - drupal:node
+ - drupal:text
+ - drupal:media
+ - drupal:ckeditor
+ - drupal:editor
+ - embed:embed
+ - entity_embed:entity_embed
diff --git a/tests/src/FunctionalJavascript/EntityEmbedTestBase.php b/tests/src/FunctionalJavascript/EntityEmbedTestBase.php
index 2c23dbf..113e7a6 100644
--- a/tests/src/FunctionalJavascript/EntityEmbedTestBase.php
+++ b/tests/src/FunctionalJavascript/EntityEmbedTestBase.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\entity_embed\FunctionalJavascript;
 
+use Drupal\Component\Utility\Html;
 use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
 
 /**
@@ -57,4 +58,23 @@ JS;
     $this->getSession()->wait($timeout, $condition);
   }
 
+  /**
+   * Creates an embed code with given attributes.
+   *
+   * @param array $attributes
+   *   The attributes to add.
+   *
+   * @return string
+   *   A string containing a <drupal-entity> element with the given attributes.
+   */
+  protected function createEmbedCode(array $attributes) {
+    $dom = Html::load('<drupal-entity>This placeholder should not be rendered.</drupal-entity>');
+    $xpath = new \DOMXPath($dom);
+    $drupal_entity = $xpath->query('//drupal-entity')[0];
+    foreach ($attributes as $attribute => $value) {
+      $drupal_entity->setAttribute($attribute, $value);
+    }
+    return Html::serialize($dom);
+  }
+
 }
diff --git a/tests/src/FunctionalJavascript/MediaImageTest.php b/tests/src/FunctionalJavascript/MediaImageTest.php
new file mode 100644
index 0000000..f6df168
--- /dev/null
+++ b/tests/src/FunctionalJavascript/MediaImageTest.php
@@ -0,0 +1,516 @@
+<?php
+
+namespace Drupal\Tests\entity_embed\FunctionalJavascript;
+
+use Drupal\entity_embed\Plugin\entity_embed\EntityEmbedDisplay\MediaImageDecorator;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\file\Entity\File;
+use Drupal\media\Entity\Media;
+
+/**
+ * Test Media Image specific functionality.
+ *
+ * @group entity_embed
+ */
+class MediaImageTest extends EntityEmbedTestBase {
+
+  /**
+   * The user to use during testing.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $adminUser;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['entity_embed_test'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $this->adminUser = $this->drupalCreateUser([
+      'use text format full_html',
+      'administer nodes',
+      'edit any article content',
+    ]);
+  }
+
+  /**
+   * Tests alt and title overriding for embedded images.
+   */
+  public function testAltAndTitle() {
+    \Drupal::service('file_system')->copy($this->root . '/core/misc/druplicon.png', 'public://example.jpg');
+    /** @var \Drupal\file\FileInterface $file */
+    $file = File::create([
+      'uri' => 'public://example.jpg',
+      'uid' => $this->adminUser->id(),
+    ]);
+    $file->save();
+
+    $this->createNode([
+      'type' => 'article',
+      'title' => 'Red-lipped batfish',
+    ]);
+
+    $media = Media::create([
+      'bundle' => 'image',
+      'name' => 'Screaming hairy armadillo',
+      'field_media_image' => [
+        [
+          'target_id' => $file->id(),
+          'alt' => 'default alt',
+          'title' => 'default title',
+        ],
+      ],
+    ]);
+    $media->save();
+
+    $host = $this->createNode([
+      'type' => 'article',
+      'title' => 'Animals with strange names',
+      'body' => [
+        'value' => '',
+        'format' => 'full_html',
+      ],
+    ]);
+
+    $this->drupalLogin($this->adminUser);
+    $this->drupalGet('node/' . $host->id() . '/edit');
+    $this->waitForEditor();
+
+    $this->assignNameToCkeditorIframe();
+
+    $this->assertSession()
+      ->waitForElementVisible('css', 'a.cke_button__test_node')
+      ->click();
+    $this->assertSession()->waitForId('drupal-modal');
+
+    // Test that node embed doesn't display alt and title fields.
+    $this->assertSession()
+      ->fieldExists('entity_id')
+      ->setValue('Red-lipped batfish (1)');
+    $this->assertSession()->elementExists('css', 'button.js-button-next')->click();
+    $form = $this->assertSession()->waitForElementVisible('css', 'form.entity-embed-dialog-step--embed');
+
+    // Assert that the review step displays the selected entity with the label.
+    $text = $form->getText();
+    $this->assertContains('Red-lipped batfish', $text);
+
+    $select = $this->assertSession()
+      ->selectExists('attributes[data-entity-embed-display]');
+
+    $select->setValue('view_mode:node.full');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    // The view_mode:node.full display shouldn't have alt and title fields.
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][title]');
+
+    $select = $this->assertSession()
+      ->selectExists('attributes[data-entity-embed-display]');
+
+    $select->setValue('view_mode:node.teaser');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    // The view_mode:node.teaser display shouldn't have alt and title fields.
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][title]');
+
+    // Close the dialog.
+    $this->assertSession()->elementExists('css', '.ui-dialog-titlebar-close')->press();
+
+    // Now test with media.
+    $this->assertSession()
+      ->waitForElementVisible('css', 'a.cke_button__test_media_entity_embed')
+      ->click();
+    $this->assertSession()->waitForId('drupal-modal');
+
+    $this->assertSession()
+      ->fieldExists('entity_id')
+      ->setValue('Screaming hairy armadillo (1)');
+    $this->assertSession()->elementExists('css', 'button.js-button-next')->click();
+    $form = $this->assertSession()->waitForElementVisible('css', 'form.entity-embed-dialog-step--embed');
+
+    // Assert that the review step displays the selected entity with the label.
+    $text = $form->getText();
+    $this->assertContains('Screaming hairy armadillo', $text);
+
+    $select = $this->assertSession()
+      ->selectExists('attributes[data-entity-embed-display]');
+
+    $select->setValue('entity_reference:entity_reference_entity_id');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    // The entity_reference:entity_reference_entity_id display shouldn't have
+    // alt and title fields.
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][title]');
+
+    $select->setValue('entity_reference:entity_reference_label');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    // The entity_reference:entity_reference_label display shouldn't have alt
+    // and title fields.
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][title]');
+
+    // Test the entity embed display that ships with core media.
+    $select->setValue('entity_reference:media_thumbnail');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    $this->assertSession()
+      ->selectExists('attributes[data-entity-embed-display]')
+      ->setValue('view_mode:media.embed');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $alt = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertEquals($media->field_media_image->alt, $alt->getValue());
+    $title = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]');
+    $this->assertEquals($media->field_media_image->title, $title->getValue());
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals("default alt", $img->getAttribute('alt'));
+    $this->assertEquals("default title", $img->getAttribute('title'));
+
+    $this->reopenDialog();
+
+    $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]')
+      ->setValue('Satanic leaf-tailed gecko alt');
+    $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]')
+      ->setValue('Satanic leaf-tailed gecko title');
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals("Satanic leaf-tailed gecko alt", $img->getAttribute('alt'));
+    $this->assertEquals("Satanic leaf-tailed gecko title", $img->getAttribute('title'));
+
+    $this->reopenDialog();
+
+    // Test a view mode that displays thumbnail field.
+    $select->setValue('view_mode:media.thumb');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    $this->assertSession()
+      ->selectExists('attributes[data-entity-embed-display]')
+      ->setValue('view_mode:media.embed');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $alt = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertEquals('Satanic leaf-tailed gecko alt', $alt->getValue());
+    $title = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]');
+    $this->assertEquals('Satanic leaf-tailed gecko title', $title->getValue());
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals('Satanic leaf-tailed gecko alt', $img->getAttribute('alt'));
+    $this->assertEquals('Satanic leaf-tailed gecko title', $img->getAttribute('title'));
+
+    $this->reopenDialog();
+
+    $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]')
+      ->setValue('Goblin shark alt');
+    $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]')
+      ->setValue('Goblin shark title');
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals("Goblin shark alt", $img->getAttribute('alt'));
+    $this->assertEquals("Goblin shark title", $img->getAttribute('title'));
+
+    $this->reopenDialog();
+
+    // Test a view mode that displays the media's image field.
+    $select->setValue('view_mode:media.embed');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    // Test that the view_mode:media.embed display has alt and title fields,
+    // and that the default values match the values on the media's
+    // source image field.
+    $this->assertSession()
+      ->selectExists('attributes[data-entity-embed-display]')
+      ->setValue('view_mode:media.embed');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $alt = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertEquals("Goblin shark alt", $alt->getValue());
+    $title = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]');
+    $this->assertEquals("Goblin shark title", $title->getValue());
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals("Goblin shark alt", $img->getAttribute('alt'));
+    $this->assertEquals("Goblin shark title", $img->getAttribute('title'));
+
+    $this->reopenDialog();
+
+    $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]')
+      ->setValue('Satanic leaf-tailed gecko alt');
+    $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]')
+      ->setValue('Satanic leaf-tailed gecko title');
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals('Satanic leaf-tailed gecko alt', $img->getAttribute('alt'));
+    $this->assertEquals('Satanic leaf-tailed gecko title', $img->getAttribute('title'));
+
+    $this->config('field.field.media.image.field_media_image')
+      ->set('settings.alt_field', FALSE)
+      ->set('settings.title_field', FALSE)
+      ->save();
+
+    $field = FieldConfig::load('media.image.field_media_image');
+    $settings = $field->getSettings();
+    $settings['alt_field'] = FALSE;
+    $settings['title_field'] = FALSE;
+    $field->set('settings', $settings);
+    $field->save();
+
+    drupal_flush_all_caches();
+
+    $this->reopenDialog();
+
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][title]');
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals('default alt', $img->getAttribute('alt'));
+    $this->assertEquals('default title', $img->getAttribute('title'));
+
+    $field = FieldConfig::load('media.image.field_media_image');
+    $settings = $field->getSettings();
+    $settings['alt_field'] = TRUE;
+    $field->set('settings', $settings);
+    $field->save();
+
+    drupal_flush_all_caches();
+
+    $this->reopenDialog();
+
+    // Test that when only the alt field is enabled, only alt field should
+    // display.
+    $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]')->setValue('Satanic leaf-tailed gecko alt');
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][title]');
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals('Satanic leaf-tailed gecko alt', $img->getAttribute('alt'));
+    $this->assertEquals('default title', $img->getAttribute('title'));
+
+    $field = FieldConfig::load('media.image.field_media_image');
+    $settings = $field->getSettings();
+    $settings['alt_field'] = FALSE;
+    $settings['title_field'] = TRUE;
+    $field->set('settings', $settings);
+    $field->save();
+
+    drupal_flush_all_caches();
+
+    $this->reopenDialog();
+
+    // With only title field enabled, only title field should display.
+    $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]')->setValue('Satanic leaf-tailed gecko title');
+    $this->assertSession()
+      ->fieldNotExists('attributes[data-entity-embed-display-settings][alt]');
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEquals('Satanic leaf-tailed gecko title', $img->getAttribute('title'));
+    $this->assertEquals('default alt', $img->getAttribute('alt'));
+
+    $field = FieldConfig::load('media.image.field_media_image');
+    $settings = $field->getSettings();
+    $settings['alt_field'] = TRUE;
+    $settings['title_field'] = TRUE;
+    $settings['alt_field_required'] = FALSE;
+    $settings['title_field_required'] = TRUE;
+    $field->set('settings', $settings);
+    $field->save();
+
+    drupal_flush_all_caches();
+
+    $this->reopenDialog();
+
+    $alt = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertFalse($alt->hasAttribute('required'));
+    $title = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]');
+    $this->assertTrue($title->hasAttribute('required'));
+
+    $this->submitDialog();
+
+    $field = FieldConfig::load('media.image.field_media_image');
+    $settings = $field->getSettings();
+    $settings['alt_field_required'] = TRUE;
+    $settings['title_field_required'] = FALSE;
+    $field->set('settings', $settings);
+    $field->save();
+
+    drupal_flush_all_caches();
+
+    $this->reopenDialog();
+
+    $alt = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][alt]');
+    $this->assertTrue($alt->hasAttribute('required'));
+    $title = $this->assertSession()
+      ->fieldExists('attributes[data-entity-embed-display-settings][title]');
+    $this->assertFalse($title->hasAttribute('required'));
+
+    // Test that setting value to double quote will allow setting the alt
+    // and title to empty.
+    $alt->setValue(MediaImageDecorator::EMPTY_STRING);
+    $title->setValue(MediaImageDecorator::EMPTY_STRING);
+
+    $this->submitDialog();
+
+    $img = $this->assertSession()->elementExists('css', 'img');
+    $this->assertEmpty($img->getAttribute('alt'));
+    $this->assertEmpty($img->getAttribute('title'));
+
+    // Test the same embed with different alt and title text.
+    $input = $this->createEmbedCode([
+      'alt' => 'alt 1',
+      'title' => 'title 1',
+      'data-embed-button' => 'test_media_entity_embed',
+      'data-entity-embed-display' => 'view_mode:media.embed',
+      'data-entity-embed-display-settings' => '',
+      'data-entity-type' => 'media',
+      'data-entity-uuid' => $media->uuid(),
+      'data-langcode' => 'en',
+    ]);
+    $input .= $this->createEmbedCode([
+      'alt' => 'alt 2',
+      'title' => 'title 2',
+      'data-embed-button' => 'test_media_entity_embed',
+      'data-entity-embed-display' => 'view_mode:media.embed',
+      'data-entity-embed-display-settings' => '',
+      'data-entity-type' => 'media',
+      'data-entity-uuid' => $media->uuid(),
+      'data-langcode' => 'en',
+    ]);
+    $input .= $this->createEmbedCode([
+      'alt' => 'alt 3',
+      'title' => 'title 3',
+      'data-embed-button' => 'test_media_entity_embed',
+      'data-entity-embed-display' => 'view_mode:media.embed',
+      'data-entity-embed-display-settings' => '',
+      'data-entity-type' => 'media',
+      'data-entity-uuid' => $media->uuid(),
+      'data-langcode' => 'en',
+    ]);
+
+    $this->getSession()->switchToIFrame();
+
+    $this->assertSession()
+      ->waitForElementVisible('css', 'a.cke_button__source')
+      ->click();
+
+    $source = $this->assertSession()
+      ->waitForElementVisible('xpath', "//textarea[contains(@class, 'cke_source')]");
+    $source->setValue($input);
+
+    // Exit "source" mode.
+    $this->assertSession()
+      ->waitForElementVisible('css', 'a.cke_button__source')
+      ->click();
+
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $this->assignNameToCkeditorIframe();
+    $this->getSession()->switchToIFrame('ckeditor');
+
+    $img = $this->assertSession()->waitForElement('xpath', "//img[contains(@alt, 'alt 1')]");
+    $this->assertEquals('alt 1', $img->getAttribute('alt'));
+    $this->assertEquals('title 1', $img->getAttribute('title'));
+
+    $img = $this->assertSession()->elementExists('xpath', "//img[contains(@alt, 'alt 2')]");
+    $this->assertEquals('alt 2', $img->getAttribute('alt'));
+    $this->assertEquals('title 2', $img->getAttribute('title'));
+
+    $img = $this->assertSession()->elementExists('xpath', "//img[contains(@alt, 'alt 3')]");
+    $this->assertEquals('alt 3', $img->getAttribute('alt'));
+    $this->assertEquals('title 3', $img->getAttribute('title'));
+
+    // Save the host entity.
+    $this->getSession()->switchToIFrame();
+    $this->assertSession()->buttonExists('Save')->press();
+
+    $img = $this->assertSession()->waitForElement('xpath', "//img[contains(@alt, 'alt 1')]");
+    $this->assertEquals('alt 1', $img->getAttribute('alt'));
+    $this->assertEquals('title 1', $img->getAttribute('title'));
+
+    $img = $this->assertSession()->elementExists('xpath', "//img[contains(@alt, 'alt 2')]");
+    $this->assertEquals('alt 2', $img->getAttribute('alt'));
+    $this->assertEquals('title 2', $img->getAttribute('title'));
+
+    $img = $this->assertSession()->elementExists('xpath', "//img[contains(@alt, 'alt 3')]");
+    $this->assertEquals('alt 3', $img->getAttribute('alt'));
+    $this->assertEquals('title 3', $img->getAttribute('title'));
+  }
+
+  /**
+   * Helper function to reopen EntityEmbedDialog for first embed.
+   */
+  protected function reopenDialog() {
+    $this->getSession()->switchToIFrame();
+    $select_and_edit_embed = <<<JS
+var editor = CKEDITOR.instances['edit-body-0-value'];
+var entityEmbed = editor.widgets.getByElement(editor.editable().findOne('div'));
+entityEmbed.focus();
+editor.execCommand('editdrupalentity');
+JS;
+    $this->getSession()->executeScript($select_and_edit_embed);
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $this->assertSession()->waitForElementVisible('css', 'form.entity-embed-dialog-step--embed');
+  }
+
+  /**
+   * Helper function to submit dialog and focus on ckeditor frame.
+   */
+  protected function submitDialog() {
+    $this->assertSession()->elementExists('css', 'button.button--primary')->press();
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
+    // Verify that the embedded entity preview in CKEditor displays the image
+    // with the default alt and title.
+    $this->getSession()->switchToIFrame('ckeditor');
+  }
+
+}