-fix TNL-3556 Instructor tool "View as Specific Student" doesn't work on the course updates page.

-Added test for TNL-3556.

AUTHORS

@@ -260,3 +260,4 @@ Jacek Bzdak <jbzdak@gmail.com>
 Jillian Vogel <pomegranited@gmail.com>
 Dan Powell <dan@abakas.com>
 Mariana Araújo <simbelm.ne@gmail.com>
+Muhammad Ayub Khan <ayub.khan@arbisoft.com>

lms/djangoapps/courseware/courses.py

@@ -242,7 +242,7 @@ def get_course_about_section(request, course, section_key):
     raise KeyError("Invalid about key " + str(section_key))
 
 
-def get_course_info_section_module(request, course, section_key):
+def get_course_info_section_module(request, user, course, section_key):
     """
     This returns the course info module for a given section_key.
 
@@ -255,10 +255,10 @@ def get_course_info_section_module(request, course, section_key):
     usage_key = course.id.make_usage_key('course_info', section_key)
 
     # Use an empty cache
-    field_data_cache = FieldDataCache([], course.id, request.user)
+    field_data_cache = FieldDataCache([], course.id, user)
 
     return get_module(
-        request.user,
+        user,
         request,
         usage_key,
         field_data_cache,
@@ -269,7 +269,7 @@ def get_course_info_section_module(request, course, section_key):
     )
 
 
-def get_course_info_section(request, course, section_key):
+def get_course_info_section(request, user, course, section_key):
     """
     This returns the snippet of html to be rendered on the course info page,
     given the key for the section.
@@ -280,7 +280,7 @@ def get_course_info_section(request, course, section_key):
     - updates
     - guest_updates
     """
-    info_module = get_course_info_section_module(request, course, section_key)
+    info_module = get_course_info_section_module(request, user, course, section_key)
 
     html = ''
     if info_module is not None:

lms/djangoapps/courseware/tests/test_courses.py

@@ -277,7 +277,7 @@ class CoursesRenderTest(ModuleStoreTestCase):
 
     def test_get_course_info_section_render(self):
         # Test render works okay
-        course_info = get_course_info_section(self.request, self.course, 'handouts')
+        course_info = get_course_info_section(self.request, self.request.user, self.course, 'handouts')
         self.assertEqual(course_info, u"<a href='/c4x/edX/toy/asset/handouts_sample_handout.txt'>Sample</a>")
 
         # Test when render raises an exception
@@ -285,7 +285,7 @@ class CoursesRenderTest(ModuleStoreTestCase):
             mock_module_render.return_value = mock.MagicMock(
                 render=mock.Mock(side_effect=Exception('Render failed!'))
             )
-            course_info = get_course_info_section(self.request, self.course, 'handouts')
+            course_info = get_course_info_section(self.request, self.request.user, self.course, 'handouts')
             self.assertIn("this module is temporarily unavailable", course_info)
 
     def test_get_course_about_section_render(self):
@@ -315,7 +315,7 @@ class XmlCoursesRenderTest(ModuleStoreTestCase):
         request = get_request_for_user(UserFactory.create())
 
         # Test render works okay. Note the href is different in XML courses.
-        course_info = get_course_info_section(request, course, 'handouts')
+        course_info = get_course_info_section(request, request.user, course, 'handouts')
         self.assertEqual(course_info, "<a href='/static/toy/handouts/sample_handout.txt'>Sample</a>")
 
         # Test when render raises an exception
@@ -323,7 +323,7 @@ class XmlCoursesRenderTest(ModuleStoreTestCase):
             mock_module_render.return_value = mock.MagicMock(
                 render=mock.Mock(side_effect=Exception('Render failed!'))
             )
-            course_info = get_course_info_section(request, course, 'handouts')
+            course_info = get_course_info_section(request, request.user, course, 'handouts')
             self.assertIn("this module is temporarily unavailable", course_info)
 
 

lms/djangoapps/courseware/tests/test_masquerade.py

@@ -41,6 +41,11 @@ class MasqueradeTestCase(ModuleStoreTestCase, LoginEnrollmentTestCase):
         # working properly, we must use start dates and set a start date in the past (otherwise the access
         # checks exist prematurely).
         self.course = CourseFactory.create(number='masquerade-test', metadata={'start': datetime.now(UTC())})
+        # Creates info page and puts random data in it for specific student info page test
+        self.info_page = ItemFactory.create(
+            category="course_info", parent_location=self.course.location,
+            data="OOGIE BLOOGIE", display_name="updates"
+        )
         self.chapter = ItemFactory.create(
             parent_location=self.course.location,
             category="chapter",
@@ -89,6 +94,18 @@ class MasqueradeTestCase(ModuleStoreTestCase, LoginEnrollmentTestCase):
         )
         return self.client.get(url)
 
+    def get_course_info_page(self):
+        """
+        Returns the server response for course info page.
+        """
+        url = reverse(
+            'info',
+            kwargs={
+                'course_id': unicode(self.course.id),
+            }
+        )
+        return self.client.get(url)
+
     def _create_mock_json_request(self, user, body, method='POST', session=None):
         """
         Returns a mock JSON request for the specified user
@@ -298,6 +315,24 @@ class TestStaffMasqueradeAsSpecificStudent(StaffMasqueradeTestCase, ProblemSubmi
         self.login_student()
         self.assertEqual(self.get_progress_detail(), u'2/2')
 
+    @patch.dict('django.conf.settings.FEATURES', {'DISABLE_START_DATES': False})
+    def test_masquerade_as_specific_student_course_info(self):
+        """
+        Test masquerading as a specific user for course info page.
+
+        We login with login_staff and check course info page content if it's working and then we
+        set masquerade to view same page as a specific student and test if it's working or not.
+        """
+        # Log in as staff, and check we can see the info page.
+        self.login_staff()
+        content = self.get_course_info_page().content
+        self.assertIn("OOGIE BLOOGIE", content)
+
+        # Masquerade as the student, and check we can see the info page.
+        self.update_masquerade(role='student', user_name=self.student_user.username)
+        content = self.get_course_info_page().content
+        self.assertIn("OOGIE BLOOGIE", content)
+
 
 @attr('shard_1')
 class TestGetMasqueradingGroupId(StaffMasqueradeTestCase):

lms/djangoapps/courseware/tests/test_module_render.py

@@ -1152,7 +1152,7 @@ class TestHtmlModifiers(ModuleStoreTestCase):
 
     def test_get_course_info_section(self):
         self.course.static_asset_path = "toy_course_dir"
-        get_course_info_section(self.request, self.course, "handouts")
+        get_course_info_section(self.request, self.request.user, self.course, "handouts")
         # NOTE: check handouts output...right now test course seems to have no such content
         # at least this makes sure get_course_info_section returns without exception
 

lms/djangoapps/courseware/views.py

@@ -704,9 +704,9 @@ def course_info(request, course_id):
             url_to_enroll = marketing_link('COURSES')
 
         show_enroll_banner = request.user.is_authenticated() and not CourseEnrollment.is_enrolled(user, course.id)
-
         context = {
             'request': request,
+            'masquerade_user': user,
             'course_id': course_key.to_deprecated_string(),
             'cache': None,
             'course': course,

lms/djangoapps/mobile_api/course_info/views.py

@@ -37,7 +37,7 @@ class CourseUpdatesList(generics.ListAPIView):
 
     @mobile_course_access()
     def list(self, request, course, *args, **kwargs):
-        course_updates_module = get_course_info_section_module(request, course, 'updates')
+        course_updates_module = get_course_info_section_module(request, request.user, course, 'updates')
         update_items = get_course_update_items(course_updates_module)
 
         updates_to_show = [
@@ -77,7 +77,7 @@ class CourseHandoutsList(generics.ListAPIView):
 
     @mobile_course_access()
     def list(self, request, course, *args, **kwargs):
-        course_handouts_module = get_course_info_section_module(request, course, 'handouts')
+        course_handouts_module = get_course_info_section_module(request, request.user, course, 'handouts')
         if course_handouts_module:
             handouts_html = course_handouts_module.data
             handouts_html = replace_static_urls(

lms/templates/courseware/info.html

@@ -58,7 +58,7 @@ $(document).ready(function(){
       % endif
 
       <h1>${_("Course Updates &amp; News")}</h1>
-      ${get_course_info_section(request, course, 'updates')}
+      ${get_course_info_section(request, masquerade_user, course, 'updates')}
     </section>
     <section aria-label="${_('Handout Navigation')}" class="handouts">
       % if False:
@@ -67,16 +67,16 @@ $(document).ready(function(){
       % endif
 
       <h1>${_(course.info_sidebar_name)}</h1>
-      ${get_course_info_section(request, course, 'handouts')}
+      ${get_course_info_section(request, masquerade_user, course, 'handouts')}
     </section>
     % else:
     <section class="updates">
       <h1>${_("Course Updates &amp; News")}</h1>
-      ${get_course_info_section(request, course, 'guest_updates')}
+      ${get_course_info_section(request, masquerade_user, course, 'guest_updates')}
     </section>
     <section aria-label="${_('Handout Navigation')}" class="handouts">
       <h1>${_("Course Handouts")}</h1>
-      ${get_course_info_section(request, course, 'guest_handouts')}
+      ${get_course_info_section(request, masquerade_user, course, 'guest_handouts')}
     </section>
     % endif
   </div>