Try to fix the failing JavaScript test

cms/templates/js/mock/mock-modal.underscore

 <div class="wrapper wrapper-modal-window wrapper-modal-window-mock">
-    <div class="modal-window confirm modal-editor modal-lg modal-type-<%= xblockInfo.get('category') %>">
-        <form class="edit-xblock-modal" action="#">
+    <div class="modal-window confirm modal-editor modal-lg modal-type-html %>">
+        <div class="edit-xblock-modal" action="#">
             <div class="modal-header">
                 <h2 class="title modal-window-title">Mock Modal Title</h2>
             </div>
@@ -17,6 +17,6 @@
                 </li>
                 </ul>
             </div>
-        </form>
+        </div>
     </div>
 </div>

common/lib/xmodule/xmodule/js/fixtures/tabs-edit.html

-<div class="component-editor">
-    <div class="base_wrapper">
+<div class="wrapper wrapper-modal-window wrapper-modal-window-mock">
+    <div class="modal-window confirm modal-editor modal-lg modal-type-<%= xblockInfo.get('category') %>">
+        <div class="edit-xblock-modal" action="#">
+            <div class="modal-header">
+                <h2 class="title modal-window-title">Mock Modal Title</h2>
+            </div>
+            <div class="modal-content">
                 <section class="editor-with-tabs">
                     <div class="wrapper-comp-editor" id="editor-tab-id" data-html_id='test_id'>
                         <div class="edit-header">
@@ -28,8 +33,17 @@
                         </div>
                     </div>
                 </section>
-
-        <div class="component-edit-header" style="display: block"/>
+            </div>
+            <div class="modal-actions">
+                <ul>
+                    <li class="action-item">
+                        <a href="#" class="button action-primary action-save">Save</a>
+                    </li>
+                    <li class="action-item">
+                        <a href="#" class="button action-secondary action-cancel">Cancel</a>
+                    </li>
+                </ul>
+            </div>
+        </div>
     </div>
 </div>
-