Clarify instructor vs staff accessible features on dashboard

Using the guideline "Course staff should have access to features related to
individual learners, but not course-wide modifications", most tools on the
student admin sub-tab of the instructor dashboard should be available to
staff as well as instructors.

TNL-5907

lms/djangoapps/instructor/tests/views/test_instructor_dashboard.py

@@ -14,7 +14,7 @@ from django.test.utils import override_settings
 from edxmako.shortcuts import render_to_response
 
 from courseware.tabs import get_course_tab_list
-from courseware.tests.factories import UserFactory, StudentModuleFactory
+from courseware.tests.factories import UserFactory, StudentModuleFactory, StaffFactory
 from courseware.tests.helpers import LoginEnrollmentTestCase
 from lms.djangoapps.instructor.views.gradebook_api import calculate_page_info
 
@@ -100,9 +100,30 @@ class TestInstructorDashboard(ModuleStoreTestCase, LoginEnrollmentTestCase, XssT
             return len([tab for tab in tabs if tab.name == 'Instructor']) == 1
 
         self.assertTrue(has_instructor_tab(self.instructor, self.course))
+
+        staff = StaffFactory(course_key=self.course.id)
+        self.assertTrue(has_instructor_tab(staff, self.course))
+
         student = UserFactory.create()
         self.assertFalse(has_instructor_tab(student, self.course))
 
+    def test_student_admin_staff_instructor(self):
+        """
+        Verify that staff users are not able to see course-wide options, while still
+        seeing individual learner options.
+        """
+        # Original (instructor) user can see both specific grades, and course-wide grade adjustment tools
+        response = self.client.get(self.url)
+        self.assertIn('<h4 class="hd hd-4">Adjust all enrolled learners', response.content)
+        self.assertIn('<h4 class="hd hd-4">View a specific learner&#39;s grades and progress', response.content)
+
+        # But staff user can only see specific grades
+        staff = StaffFactory(course_key=self.course.id)
+        self.client.login(username=staff.username, password="test")
+        response = self.client.get(self.url)
+        self.assertNotIn('<h4 class="hd hd-4">Adjust all enrolled learners', response.content)
+        self.assertIn('<h4 class="hd hd-4">View a specific learner&#39;s grades and progress', response.content)
+
     def test_default_currency_in_the_html_response(self):
         """
         Test that checks the default currency_symbol ($) in the response

lms/templates/instructor/instructor_dashboard_2/student_admin.html

 <%page args="section_data" expression_filter="h"/>
 <%! from django.utils.translation import ugettext as _ %>
-%if section_data['access']['instructor']:
+%if section_data['access']['staff'] or section_data['access']['instructor']:
 <div class="action-type-container">
     %if section_data['is_small_course']:
         <br><br>
@@ -112,7 +112,7 @@
     <input type="button" name="skip-entrance-exam" value="${_('Let Learner Skip Entrance Exam')}" data-endpoint="${ section_data['student_can_skip_entrance_exam_url'] }">
     <br><br>
 
-    %if settings.FEATURES.get('ENABLE_INSTRUCTOR_BACKGROUND_TASKS'):
+    %if settings.FEATURES.get('ENABLE_INSTRUCTOR_BACKGROUND_TASKS') and section_data['access']['instructor']:
         <h5 class="hd hd-5">${_("Rescore")}</h5>
         <label for="rescore-actions-entrance-exam">
             ${_("Rescore any responses that have been submitted. The 'Rescore All Problems Only If Score Improves' option updates the learner's scores only if it improves in the learner's favor.")}
@@ -147,6 +147,9 @@
 </div>
 %endif
 
+%endif
+
+%if section_data['access']['instructor']:
 %if settings.FEATURES.get('ENABLE_INSTRUCTOR_BACKGROUND_TASKS'):
 <div class="course-specific-container action-type-container">
     <h4 class="hd hd-4">${_("Adjust all enrolled learners' grades for a specific problem")}</h4>