let the student take exam without proctoring if the course end date …

…is passed

edx_proctoring/api.py

@@ -893,7 +893,7 @@ def update_attempt_status(exam_id, user_id, to_status, raise_if_not_found=True,
         credit_state = credit_service.get_credit_state(
             exam_attempt_obj.user_id,
             exam_attempt_obj.proctored_exam.course_id,
-            return_course_name=True
+            return_course_info=True
         )
 
         send_proctoring_attempt_status_email(
@@ -1770,6 +1770,12 @@ def get_student_view(user_id, course_id, content_id,
     if user_role != 'student':
         return None
 
+    credit_service = get_runtime_service('credit')
+
+    # call service to get course end date.
+    credit_state = credit_service.get_credit_state(user_id, course_id, return_course_info=True)
+    course_end_date = credit_state.get('course_end_date', None)
+
     exam_id = None
     try:
         exam = get_exam_by_content_id(course_id, content_id)
@@ -1808,11 +1814,15 @@ def get_student_view(user_id, course_id, content_id,
     is_proctored_exam = exam['is_proctored'] and not exam['is_practice_exam']
     is_timed_exam = not exam['is_proctored'] and not exam['is_practice_exam']
 
+    sub_view_func = None
     if is_timed_exam:
-        return _get_timed_exam_view(exam, context, exam_id, user_id, course_id)
-    elif is_practice_exam:
-        return _get_practice_exam_view(exam, context, exam_id, user_id, course_id)
-    elif is_proctored_exam:
-        return _get_proctored_exam_view(exam, context, exam_id, user_id, course_id)
-
-    return None
+        sub_view_func = _get_timed_exam_view
+    elif is_practice_exam and not has_due_date_passed(course_end_date):
+        sub_view_func = _get_practice_exam_view
+    elif is_proctored_exam and not has_due_date_passed(course_end_date):
+        sub_view_func = _get_proctored_exam_view
+
+    if sub_view_func:
+        return sub_view_func(exam, context, exam_id, user_id, course_id)
+    else:
+        return None

edx_proctoring/tests/test_api.py

@@ -71,7 +71,7 @@
 )
 
 from edx_proctoring.tests.test_services import (
-    MockCreditService,
+    MockCreditService, MockCreditServiceWithCourseEndDate,
     MockInstructorService,
 )
 from edx_proctoring.runtime import set_runtime_service, get_runtime_service
@@ -1184,6 +1184,52 @@ def test_wrong_exam_combo(self):
         )
         self.assertIsNone(rendered_response)
 
+    def test_proctored_exam_passed_end_date(self):
+        """
+        Verify that we get a None back on a proctored exam
+        if the course end date is passed
+        """
+
+        set_runtime_service('credit', MockCreditServiceWithCourseEndDate())
+
+        rendered_response = get_student_view(
+            user_id=self.user_id,
+            course_id='foo',
+            content_id='bar',
+            context={
+                'is_proctored': True,
+                'is_practice_exam': False,
+                'display_name': self.exam_name,
+                'default_time_limit_mins': 90,
+                'due_date': None
+            },
+            user_role='student'
+        )
+        self.assertIsNone(rendered_response)
+
+    def test_practice_exam_passed_end_date(self):
+        """
+        Verify that we get a None back on a practice exam
+        if the course end date is passed
+        """
+
+        set_runtime_service('credit', MockCreditServiceWithCourseEndDate())
+
+        rendered_response = get_student_view(
+            user_id=self.user_id,
+            course_id='foo',
+            content_id='bar',
+            context={
+                'is_proctored': True,
+                'is_practice_exam': True,
+                'display_name': self.exam_name,
+                'default_time_limit_mins': 90,
+                'due_date': None
+            },
+            user_role='student'
+        )
+        self.assertIsNone(rendered_response)
+
     def test_get_disabled_student_view(self):
         """
         Assert that a disabled proctored exam will not override the

edx_proctoring/tests/test_services.py

@@ -5,6 +5,8 @@
 """
 
 import unittest
+import pytz
+from datetime import datetime, timedelta
 from edx_proctoring.services import (
     ProctoringService
 )
@@ -31,11 +33,10 @@ def __init__(self, enrollment_mode='verified', profile_fullname='Wolfgang von St
             'credit_requirement_status': []
         }
 
-    def get_credit_state(self, user_id, course_key, return_course_name=False):  # pylint: disable=unused-argument
+    def get_credit_state(self, user_id, course_key, return_course_info=False):  # pylint: disable=unused-argument
         """
         Mock implementation
         """
-
         return self.status
 
     # pylint: disable=unused-argument
@@ -87,6 +88,19 @@ def remove_credit_requirement_status(self, user_id, course_key_or_id, req_namesp
         return True
 
 
+class MockCreditServiceWithCourseEndDate(MockCreditService):
+    """
+    mock of the Credit Service but overrides get_credit_state to return a past course_end_date
+    """
+
+    def get_credit_state(self, user_id, course_key, return_course_info=False):  # pylint: disable=unused-argument
+        """
+        Mock implementation
+        """
+        self.status['course_end_date'] = datetime.now(pytz.UTC) + timedelta(days=-1)
+        return self.status
+
+
 class MockInstructorService(object):
     """
     Simple mock of the Instructor Service

setup.py

@@ -34,7 +34,7 @@ def load_requirements(*requirements_paths):
 
 setup(
     name='edx-proctoring',
-    version='0.12.12',
+    version='0.12.13',
     description='Proctoring subsystem for Open edX',
     long_description=open('README.md').read(),
     author='edX',