diff --git modules/comment/comment.test modules/comment/comment.test
index 108c3a4..cf1f026 100644
--- modules/comment/comment.test
+++ modules/comment/comment.test
@@ -551,6 +551,15 @@ class CommentPreviewTest extends CommentHelperCase {
     $this->assertFieldByName('comment_body[' . $langcode . '][0][value]', $edit['comment_body[' . $langcode . '][0][value]'], t('Comment field displayed.'));
     $this->assertFieldByName('name', $edit['name'], t('Author field displayed.'));
     $this->assertFieldByName('date', $edit['date'], t('Date field displayed.'));
+
+    // Check that saving a comment produces a success message.
+    $this->drupalPost('comment/' . $comment->id . '/edit', $edit, t('Save'));
+    $this->assertText(t('Your comment has been posted.'), t('Comment posted.'));
+
+    // Check that the date field is correct after saving the comment.
+    $this->drupalGet('comment/' . $comment->id . '/edit');
+    $this->assertFieldByName('date', $edit['date'], t('Date field displayed.'));
+
   }
 
 }