Fix the fixtures, add new tests, remove useless code

from the original JS

common/lib/xmodule/xmodule/js/fixtures/combined-open-ended.html

-<section id="combined-open-ended" class="combined-open-ended" data-ajax-url="/courses/MITx/6.002x/2012_Fall/modx/i4x://MITx/6.002x/combinedopenended/CombinedOE" data-allow_reset="False" data-state="assessing" data-task-count="2" data-task-number="2">
+<section class="course-content">
+      <section class="xmodule_display xmodule_CombinedOpenEndedModule" data-type="CombinedOpenEnded">
+    <section id="combined-open-ended" class="combined-open-ended" data-ajax-url="/courses/MITx/6.002x/2012_Fall/modx/i4x://MITx/6.002x/combinedopenended/CombinedOE" data-allow_reset="False" data-state="assessing" data-task-count="2" data-task-number="2">
 
     <h2>Problem 1</h2>
     <div class="status-container">
@@ -53,4 +55,69 @@
     <a name="results">
     <div class="result-container">
     </div>
-</a></section>
+</a></section><a name="results">
+
+
+</a></section><a name="results">
+
+</a><div><a name="results">
+	</a><a href="https://github.com/MITx/content-mit-6002x/tree/master/combinedopenended/CombinedOE.xml">Edit</a> /
+	<a href="#i4x_MITx_6_002x_combinedopenended_CombinedOE_xqa-modal" onclick="javascript:getlog('i4x_MITx_6_002x_combinedopenended_CombinedOE', {
+        'location': 'i4x://MITx/6.002x/combinedopenended/CombinedOE',
+        'xqa_key': 'KUBrWtK3RAaBALLbccHrXeD3RHOpmZ2A',
+        'category': 'CombinedOpenEndedModule',
+        'user': 'blah'
+     })" id="i4x_MITx_6_002x_combinedopenended_CombinedOE_xqa_log">QA</a>
+</div>
+<div><a href="#i4x_MITx_6_002x_combinedopenended_CombinedOE_debug" id="i4x_MITx_6_002x_combinedopenended_CombinedOE_trig">Staff Debug Info</a></div>
+
+<section id="i4x_MITx_6_002x_combinedopenended_CombinedOE_xqa-modal" class="modal xqa-modal" style="width:80%; left:20%; height:80%; overflow:auto">
+  <div class="inner-wrapper">
+    <header>
+      <h2>edX Content Quality Assessment</h2>
+    </header>
+
+    <form id="i4x_MITx_6_002x_combinedopenended_CombinedOE_xqa_form" class="xqa_form">
+      <label>Comment</label>
+      <input id="i4x_MITx_6_002x_combinedopenended_CombinedOE_xqa_entry" type="text" placeholder="comment">
+      <label>Tag</label>
+      <span style="color:black;vertical-align: -10pt">Optional tag (eg "done" or "broken"):&nbsp;       </span>
+      <input id="i4x_MITx_6_002x_combinedopenended_CombinedOE_xqa_tag" type="text" placeholder="tag" style="width:80px;display:inline">
+      <div class="submit">
+        <button name="submit" type="submit">Add comment</button>
+      </div>
+      <hr>
+      <div id="i4x_MITx_6_002x_combinedopenended_CombinedOE_xqa_log_data"></div>
+    </form>
+
+  </div>
+</section>
+
+<section class="modal staff-modal" id="i4x_MITx_6_002x_combinedopenended_CombinedOE_debug" style="width:80%; left:20%; height:80%; overflow:auto;">
+  <div class="inner-wrapper" style="color:black">
+    <header>
+      <h2>Staff Debug</h2>
+    </header>
+    <div class="staff_info" style="display:block">
+is_released = <font color="red">Yes!</font>
+location = i4x://MITx/6.002x/combinedopenended/CombinedOE
+github = <a href="https://github.com/MITx/content-mit-6002x/tree/master/combinedopenended/CombinedOE.xml">https://github.com/MITx/content-mit-6002x/tree/master/combinedopenended/CombinedOE.xml</a>
+definition = <pre>None</pre>
+metadata = {
+    "showanswer": "attempted", 
+    "display_name": "Problem 1", 
+    "graceperiod": "1 day 12 hours 59 minutes 59 seconds", 
+    "xqa_key": "KUBrWtK3RAaBALLbccHrXeD3RHOpmZ2A", 
+    "rerandomize": "never", 
+    "start": "2012-09-05T12:00", 
+    "attempts": "10000", 
+    "data_dir": "content-mit-6002x", 
+    "max_score": "1"
+}
+category = CombinedOpenEndedModule
+    </div>
+  </div>
+</section>
+
+<div id="i4x_MITx_6_002x_combinedopenended_CombinedOE_setup"></div>
+    </section>

common/lib/xmodule/xmodule/js/spec/combinedopenended/display_spec.coffee

@@ -3,13 +3,27 @@ describe 'CombinedOpenEnded', ->
     spyOn Logger, 'log'
     # load up some fixtures
     loadFixtures 'combined-open-ended.html'
-    @element = $('.combined-open-ended')
+    @element = $('.course-content')
 
 
   describe 'constructor', ->
     beforeEach ->
+      spyOn(Collapsible, 'setCollapsibles')
       @combined = new CombinedOpenEnded @element
+
     it 'set the element', ->
       expect(@combined.element).toEqual @element
 
+    it 'get the correct values from data fields', ->
+      expect(@combined.ajax_url).toEqual '/courses/MITx/6.002x/2012_Fall/modx/i4x://MITx/6.002x/combinedopenended/CombinedOE'
+      expect(@combined.state).toEqual 'assessing'
+      expect(@combined.task_count).toEqual 2
+      expect(@combined.task_number).toEqual 2
+
+    it 'subelements are made collapsible', -> 
+      expect(Collapsible.setCollapsibles).toHaveBeenCalled()
+
+    it 'elements are rebound for assessing state', ->
+      expect(@combined.answer_area.attr("disabled")).toBe("disabled")
+      expect(@combined.submit_button.val()).toBe("Submit assessment")
 

common/lib/xmodule/xmodule/js/src/combinedopenended/display.coffee

@@ -7,7 +7,6 @@ class @CombinedOpenEnded
     @wrapper=$(element).find('section.xmodule_CombinedOpenEndedModule')
     @el = $(element).find('section.combined-open-ended')
     @combined_open_ended=$(element).find('section.combined-open-ended')
-    @id = @el.data('id')
     @ajax_url = @el.data('ajax-url')
     @state = @el.data('state')
     @task_count = @el.data('task-count')