[sumac krach institute backport] fix: CourseLimitedStaffRole should not be able to access studio.

cms/djangoapps/contentstore/tests/test_course_listing.py

@@ -243,6 +243,48 @@ def test_org_limited_staff_course_listing(self):
         # Limited Course Staff should not be able to list courses in Studio
         assert len(list(courses_list_by_staff)) == 0
 
+    def test_course_limited_staff_course_listing(self):
+        # Setup a new course
+        course_location = self.store.make_course_key('Org', 'CreatedCourse', 'Run')
+        CourseFactory.create(
+            org=course_location.org,
+            number=course_location.course,
+            run=course_location.run
+        )
+        course = CourseOverviewFactory.create(id=course_location, org=course_location.org)
+
+        # Add the user as a course_limited_staff on the course
+        CourseLimitedStaffRole(course.id).add_users(self.user)
+        self.assertTrue(CourseLimitedStaffRole(course.id).has_user(self.user))
+
+        # Fetch accessible courses list & verify their count
+        courses_list_by_staff, __ = get_courses_accessible_to_user(self.request)
+
+        # Limited Course Staff should not be able to list courses in Studio
+        assert len(list(courses_list_by_staff)) == 0
+
+    def test_org_limited_staff_course_listing(self):
+
+        # Setup a new course
+        course_location = self.store.make_course_key('Org', 'CreatedCourse', 'Run')
+        CourseFactory.create(
+            org=course_location.org,
+            number=course_location.course,
+            run=course_location.run
+        )
+        course = CourseOverviewFactory.create(id=course_location, org=course_location.org)
+
+        # Add a user as course_limited_staff on the org
+        # This is not possible using the course roles classes but is possible via Django admin so we
+        # insert a row into the model directly to test that scenario.
+        CourseAccessRole.objects.create(user=self.user, org=course_location.org, role=CourseLimitedStaffRole.ROLE)
+
+        # Fetch accessible courses list & verify their count
+        courses_list_by_staff, __ = get_courses_accessible_to_user(self.request)
+
+        # Limited Course Staff should not be able to list courses in Studio
+        assert len(list(courses_list_by_staff)) == 0
+
     def test_get_course_list_with_invalid_course_location(self):
         """
         Test getting courses with invalid course location (course deleted from modulestore).