Issue #2934850 by balsama, Berdir: Media Images should be rendered at a reasonable size by default

core/modules/media/tests/src/FunctionalJavascript/MediaDisplayTest.php

@@ -81,10 +81,13 @@ public function testMediaDisplay() {
     // Here we expect to see only the image, nothing else.
     // Assert only one element in the content region.
     $this->assertEquals(1, count($page->findAll('css', '.media--type-image > div')));
-    // Assert the image is present inside the media element, with "medium"
-    // image style.
+    // Assert the image is present inside the media element.
     $media_item = $assert_session->elementExists('css', '.media--type-image > div');
-    $assert_session->elementExists('css', 'img.image-style-medium', $media_item);
+    $assert_session->elementExists('css', 'img', $media_item);
+    // Assert that the image src is the original image and not an image style.
+    $media_image = $assert_session->elementExists('css', '.media--type-image img');
+    $expected_image_src = file_url_transform_relative(file_create_url(\Drupal::token()->replace('public://[date:custom:Y]-[date:custom:m]/example_1.jpeg')));
+    $this->assertEquals($expected_image_src, $media_image->getAttribute('src'));
 
     $test_filename = $this->randomMachineName() . '.txt';
     $test_filepath = 'public://' . $test_filename;
@@ -163,8 +166,8 @@ public function testMediaDisplay() {
     $assert_session->pageTextNotContains($image_media_name);
     // Only one element is present inside the media container.
     $this->assertEquals(1, count($page->findAll('css', '.field--name-field-related-media article.media--type-image > div')));
-    // Assert the image is present, with "medium" image style.
-    $assert_session->elementExists('css', '.field--name-field-related-media article.media--type-image img.image-style-medium');
+    // Assert the image is present.
+    $assert_session->elementExists('css', '.field--name-field-related-media article.media--type-image img');
   }
 
 }

core/profiles/standard/config/optional/core.entity_view_display.media.image.default.yml

@@ -15,7 +15,7 @@ content:
   field_media_image:
     label: visually_hidden
     settings:
-      image_style: medium
+      image_style: ''
       image_link: file
     third_party_settings: {  }
     type: image