diff --git a/core/modules/simpletest/tests/image.test b/core/modules/simpletest/tests/image.test
index cabdc04..ab008e5 100644
--- a/core/modules/simpletest/tests/image.test
+++ b/core/modules/simpletest/tests/image.test
@@ -464,19 +464,19 @@ class ImageToolkitGdTestCase extends DrupalWebTestCase {
 }
 
 /**
- * Move related tests
+ * Tests the file move function for managed files.
  */
 class ImageFileMoveTest extends ImageToolkitTestCase {
   public static function getInfo() {
     return array(
       'name' => 'Image moving',
-      'description' => 'Tests the file move function.',
+      'description' => 'Tests the file move function for managed files.',
       'group' => 'Image',
     );
   }
 
   /**
-   * Move a normal file.
+   * Tests moving a randomly generated image.
    */
   function testNormal() {
     // Pick a file for testing.
@@ -488,7 +488,7 @@ class ImageFileMoveTest extends ImageToolkitTestCase {
     image_style_create_derivative($style, $file->uri, $derivative_uri);
 
     // Check if derivative image exists.
-    $this->assertTrue(file_exists($derivative_uri), t('Make sure derivative image is generated successfully.'));
+    $this->assertTrue(file_exists($derivative_uri), 'Make sure derivative image is generated successfully.');
 
     // Clone the object so we don't have to worry about the function changing
     // our reference copy.
@@ -496,10 +496,10 @@ class ImageFileMoveTest extends ImageToolkitTestCase {
     $result = file_move(clone $file, $desired_filepath, FILE_EXISTS_ERROR);
 
     // Check if image has been moved.
-    $this->assertTrue(file_exists($result->uri), t('Make sure image is moved successfully.'));
+    $this->assertTrue(file_exists($result->uri), 'Make sure image is moved successfully.');
 
     // Check if derivative image has been flushed.
-    $this->assertFalse(file_exists($derivative_uri), t('Make sure derivative image has been flushed.'));
+    $this->assertFalse(file_exists($derivative_uri), 'Make sure derivative image has been flushed.');
   }
 }