New Jasmine tests

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

 <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">
+    <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="1">
 
     <h2>Problem 1</h2>
     <div class="status-container">

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

@@ -19,14 +19,11 @@ describe 'CombinedOpenEnded', ->
       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
+      expect(@combined.task_number).toEqual 1
 
     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")
 
   describe 'poll', ->
     beforeEach =>
@@ -35,14 +32,14 @@ describe 'CombinedOpenEnded', ->
       spyOn(@combined, 'reload').andCallFake -> return 0
       window.setTimeout = jasmine.createSpy().andCallFake (callback, timeout) -> return 5
 
-    it 'we are setting the timeout', =>
+    it 'polls at the correct intervals', =>
       fakeResponseContinue = state: 'not done'
       spyOn($, 'postWithPrefix').andCallFake (url, callback) -> callback(fakeResponseContinue)
       @combined.poll()
       expect(window.setTimeout).toHaveBeenCalledWith(@combined.poll, 10000)
       expect(window.queuePollerID).toBe(5)
 
-    it 'we are stopping polling properly', =>
+    it 'polling stops properly', =>
       $.postWithPrefix = jasmine.createSpy("$.postWithPrefix")
       fakeResponseDone = state: "done" 
       $.postWithPrefix.andCallFake (url, callback) -> callback(fakeResponseDone)
@@ -50,3 +47,36 @@ describe 'CombinedOpenEnded', ->
       expect(window.queuePollerID).toBeUndefined()
       expect(window.setTimeout).not.toHaveBeenCalled()
       expect(@combined.reload).toHaveBeenCalled()
+
+  describe 'rebind', ->
+    beforeEach ->
+      @combined = new CombinedOpenEnded @element
+      spyOn(@combined, 'queueing').andCallFake -> return 0
+      spyOn(@combined, 'skip_post_assessment').andCallFake -> return 0
+      window.setTimeout = jasmine.createSpy().andCallFake (callback, timeout) -> return 5
+
+    it 'when our child is in an assessing state', ->
+      @combined.child_state = 'assessing'
+      @combined.rebind()
+      expect(@combined.answer_area.attr("disabled")).toBe("disabled")
+      expect(@combined.submit_button.val()).toBe("Submit assessment")
+      expect(@combined.queueing).toHaveBeenCalled()
+
+    it 'when our child state is initial', -> 
+      @combined.child_state = 'initial'
+      @combined.rebind()
+      expect(@combined.answer_area.attr("disabled")).toBeUndefined()
+      expect(@combined.submit_button.val()).toBe("Submit")
+
+    it 'when our child state is post_assessment', -> 
+      @combined.child_state = 'post_assessment'
+      @combined.rebind()
+      expect(@combined.answer_area.attr("disabled")).toBe("disabled")
+      expect(@combined.submit_button.val()).toBe("Submit post-assessment")
+
+    it 'when our child state is done', -> 
+      spyOn(@combined, 'next_problem').andCallFake ->
+      @combined.child_state = 'done'
+      @combined.rebind()
+      expect(@combined.answer_area.attr("disabled")).toBe("disabled")
+      expect(@combined.next_problem).toHaveBeenCalled()