diff --git a/core/modules/editor/src/Tests/EditorUploadImageScaleTest.php b/core/modules/editor/src/Tests/EditorUploadImageScaleTest.php
index 16e07d3..c80f10f 100644
--- a/core/modules/editor/src/Tests/EditorUploadImageScaleTest.php
+++ b/core/modules/editor/src/Tests/EditorUploadImageScaleTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\editor\Tests\EditorUploadImageScaleTest.
- */
-
 namespace Drupal\editor\Tests;
 
 use Drupal\editor\Entity\Editor;
@@ -12,7 +7,7 @@
 use Drupal\simpletest\WebTestBase;
 
 /**
- * Tests scaling of uploaded images.
+ * Tests scaling of inline images.
  *
  * @group editor
  */
@@ -118,6 +113,14 @@ public function testEditorUploadImageScale() {
     $this->assertNoRaw(t('The image was resized to fit within the maximum allowed dimensions of %dimensions pixels.', ['%dimensions' => $max_width . 'x' . $max_height]));
   }
 
+  /**
+   * Gets the dimensions of an uploaded image.
+   *
+   * @param string $uri
+   *   The URI of the image.
+   *
+   * @return array
+   */
   protected function getTestImageInfo($uri) {
     $image_file = $this->container->get('image.factory')->get($uri);
     return [
@@ -126,6 +129,14 @@ protected function getTestImageInfo($uri) {
     ];
   }
 
+  /**
+   * Sets the maximum dimensions and saves the configuration.
+   *
+   * @param string|int $width
+   *   The URI of the image.
+   * @param string|int $height
+   *   The URI of the image.
+   */
   protected function setMaxDimensions($width, $height) {
     $editor = Editor::load('basic_html');
     $image_upload_settings = $editor->getImageUploadSettings();
@@ -135,6 +146,14 @@ protected function setMaxDimensions($width, $height) {
     $editor->save();
   }
 
+  /**
+   * Uploads an image via the editor dialog.
+   *
+   * @param string $uri
+   *   The URI of the image.
+   *
+   * @return array
+   */
   protected function uploadImage($uri) {
     $edit = [
       'files[fid]' => drupal_realpath($uri),