646 lines
28 KiB
Python
646 lines
28 KiB
Python
"""
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Unit tests for LMS instructor-initiated background tasks.
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Runs tasks on answers to course problems to validate that code
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paths actually work.
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"""
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import json
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from functools import partial
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from uuid import uuid4
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import ddt
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from celery.states import FAILURE, SUCCESS
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from django.utils.translation import ugettext_noop
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from mock import MagicMock, Mock, patch
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from nose.plugins.attrib import attr
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from opaque_keys.edx.locations import i4xEncoder
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from courseware.models import StudentModule
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from courseware.tests.factories import StudentModuleFactory
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from lms.djangoapps.instructor_task.exceptions import UpdateProblemModuleStateError
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from lms.djangoapps.instructor_task.models import InstructorTask
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from lms.djangoapps.instructor_task.tasks import (
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delete_problem_state,
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export_ora2_data,
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generate_certificates,
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rescore_problem,
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reset_problem_attempts,
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override_problem_score
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)
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from lms.djangoapps.instructor_task.tasks_helper.misc import upload_ora2_data
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from lms.djangoapps.instructor_task.tests.factories import InstructorTaskFactory
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from lms.djangoapps.instructor_task.tests.test_base import InstructorTaskModuleTestCase
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from student.tests.factories import CourseEnrollmentFactory, UserFactory
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from xmodule.modulestore.exceptions import ItemNotFoundError
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PROBLEM_URL_NAME = "test_urlname"
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class TestTaskFailure(Exception):
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"""
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An example exception to indicate failure of a mocked task.
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"""
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pass
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class TestInstructorTasks(InstructorTaskModuleTestCase):
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"""
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Ensure tasks behave as expected.
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"""
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def setUp(self):
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super(TestInstructorTasks, self).setUp()
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self.initialize_course()
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self.instructor = self.create_instructor('instructor')
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self.location = self.problem_location(PROBLEM_URL_NAME)
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def _create_input_entry(
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self, student_ident=None, use_problem_url=True, course_id=None, only_if_higher=False, score=None
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):
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"""Creates a InstructorTask entry for testing."""
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task_id = str(uuid4())
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task_input = {'only_if_higher': only_if_higher}
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if use_problem_url:
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task_input['problem_url'] = self.location
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if student_ident is not None:
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task_input['student'] = student_ident
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if score is not None:
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task_input['score'] = score
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course_id = course_id or self.course.id
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instructor_task = InstructorTaskFactory.create(course_id=course_id,
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requester=self.instructor,
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task_input=json.dumps(task_input, cls=i4xEncoder),
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task_key='dummy value',
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task_id=task_id)
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return instructor_task
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def _get_xmodule_instance_args(self):
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"""
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Calculate dummy values for parameters needed for instantiating xmodule instances.
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"""
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return {
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'xqueue_callback_url_prefix': 'dummy_value',
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'request_info': {
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'username': 'dummy_username',
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'user_id': 'dummy_id',
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},
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}
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def _run_task_with_mock_celery(self, task_class, entry_id, task_id, expected_failure_message=None):
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"""Submit a task and mock how celery provides a current_task."""
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self.current_task = Mock()
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self.current_task.request = Mock()
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self.current_task.request.id = task_id
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self.current_task.update_state = Mock()
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if expected_failure_message is not None:
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self.current_task.update_state.side_effect = TestTaskFailure(expected_failure_message)
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task_args = [entry_id, self._get_xmodule_instance_args()]
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with patch('lms.djangoapps.instructor_task.tasks_helper.runner._get_current_task') as mock_get_task:
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mock_get_task.return_value = self.current_task
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return task_class.apply(task_args, task_id=task_id).get()
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def _test_missing_current_task(self, task_class):
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"""Check that a task_class fails when celery doesn't provide a current_task."""
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task_entry = self._create_input_entry()
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with self.assertRaises(ValueError):
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task_class(task_entry.id, self._get_xmodule_instance_args())
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def _test_undefined_course(self, task_class):
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"""Run with celery, but with no course defined."""
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task_entry = self._create_input_entry(course_id="bogus/course/id")
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with self.assertRaises(ItemNotFoundError):
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self._run_task_with_mock_celery(task_class, task_entry.id, task_entry.task_id)
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def _test_undefined_problem(self, task_class):
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"""Run with celery, but no problem defined."""
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task_entry = self._create_input_entry()
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with self.assertRaises(ItemNotFoundError):
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self._run_task_with_mock_celery(task_class, task_entry.id, task_entry.task_id)
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def _test_run_with_task(self, task_class, action_name, expected_num_succeeded,
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expected_num_skipped=0, expected_attempted=0, expected_total=0):
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"""Run a task and check the number of StudentModules processed."""
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task_entry = self._create_input_entry()
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status = self._run_task_with_mock_celery(task_class, task_entry.id, task_entry.task_id)
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expected_attempted = expected_attempted \
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if expected_attempted else expected_num_succeeded + expected_num_skipped
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expected_total = expected_total \
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if expected_total else expected_num_succeeded + expected_num_skipped
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# check return value
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self.assertEquals(status.get('attempted'), expected_attempted)
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self.assertEquals(status.get('succeeded'), expected_num_succeeded)
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self.assertEquals(status.get('skipped'), expected_num_skipped)
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self.assertEquals(status.get('total'), expected_total)
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self.assertEquals(status.get('action_name'), action_name)
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self.assertGreater(status.get('duration_ms'), 0)
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# compare with entry in table:
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entry = InstructorTask.objects.get(id=task_entry.id)
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self.assertEquals(json.loads(entry.task_output), status)
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self.assertEquals(entry.task_state, SUCCESS)
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def _test_run_with_no_state(self, task_class, action_name):
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"""Run with no StudentModules defined for the current problem."""
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self.define_option_problem(PROBLEM_URL_NAME)
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self._test_run_with_task(task_class, action_name, 0)
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def _create_students_with_state(self, num_students, state=None, grade=0, max_grade=1):
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"""Create students, a problem, and StudentModule objects for testing"""
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self.define_option_problem(PROBLEM_URL_NAME)
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students = [
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UserFactory.create(username='robot%d' % i, email='robot+test+%d@edx.org' % i)
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for i in xrange(num_students)
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]
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for student in students:
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CourseEnrollmentFactory.create(course_id=self.course.id, user=student)
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StudentModuleFactory.create(course_id=self.course.id,
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module_state_key=self.location,
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student=student,
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grade=grade,
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max_grade=max_grade,
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state=state)
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return students
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def _assert_num_attempts(self, students, num_attempts):
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"""Check the number attempts for all students is the same"""
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for student in students:
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module = StudentModule.objects.get(course_id=self.course.id,
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student=student,
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module_state_key=self.location)
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state = json.loads(module.state)
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self.assertEquals(state['attempts'], num_attempts)
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def _test_run_with_failure(self, task_class, expected_message):
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"""Run a task and trigger an artificial failure with the given message."""
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task_entry = self._create_input_entry()
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self.define_option_problem(PROBLEM_URL_NAME)
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with self.assertRaises(TestTaskFailure):
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self._run_task_with_mock_celery(task_class, task_entry.id, task_entry.task_id, expected_message)
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# compare with entry in table:
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entry = InstructorTask.objects.get(id=task_entry.id)
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self.assertEquals(entry.task_state, FAILURE)
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output = json.loads(entry.task_output)
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self.assertEquals(output['exception'], 'TestTaskFailure')
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self.assertEquals(output['message'], expected_message)
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def _test_run_with_long_error_msg(self, task_class):
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"""
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Run with an error message that is so long it will require
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truncation (as well as the jettisoning of the traceback).
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"""
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task_entry = self._create_input_entry()
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self.define_option_problem(PROBLEM_URL_NAME)
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expected_message = "x" * 1500
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with self.assertRaises(TestTaskFailure):
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self._run_task_with_mock_celery(task_class, task_entry.id, task_entry.task_id, expected_message)
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# compare with entry in table:
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entry = InstructorTask.objects.get(id=task_entry.id)
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self.assertEquals(entry.task_state, FAILURE)
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self.assertGreater(1023, len(entry.task_output))
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output = json.loads(entry.task_output)
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self.assertEquals(output['exception'], 'TestTaskFailure')
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self.assertEquals(output['message'], expected_message[:len(output['message']) - 3] + "...")
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self.assertNotIn('traceback', output)
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def _test_run_with_short_error_msg(self, task_class):
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"""
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Run with an error message that is short enough to fit
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in the output, but long enough that the traceback won't.
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Confirm that the traceback is truncated.
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"""
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task_entry = self._create_input_entry()
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self.define_option_problem(PROBLEM_URL_NAME)
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expected_message = "x" * 900
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with self.assertRaises(TestTaskFailure):
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self._run_task_with_mock_celery(task_class, task_entry.id, task_entry.task_id, expected_message)
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# compare with entry in table:
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entry = InstructorTask.objects.get(id=task_entry.id)
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self.assertEquals(entry.task_state, FAILURE)
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self.assertGreater(1023, len(entry.task_output))
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output = json.loads(entry.task_output)
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self.assertEquals(output['exception'], 'TestTaskFailure')
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self.assertEquals(output['message'], expected_message)
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self.assertEquals(output['traceback'][-3:], "...")
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class TestOverrideScoreInstructorTask(TestInstructorTasks):
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"""Tests instructor task to override learner's problem score"""
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def assert_task_output(self, output, **expected_output):
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"""
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Check & compare output of the task
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"""
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self.assertEqual(output.get('total'), expected_output.get('total'))
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self.assertEqual(output.get('attempted'), expected_output.get('attempted'))
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self.assertEqual(output.get('succeeded'), expected_output.get('succeeded'))
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self.assertEqual(output.get('skipped'), expected_output.get('skipped'))
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self.assertEqual(output.get('failed'), expected_output.get('failed'))
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self.assertEqual(output.get('action_name'), expected_output.get('action_name'))
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self.assertGreater(output.get('duration_ms'), expected_output.get('duration_ms', 0))
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def get_task_output(self, task_id):
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"""Get and load instructor task output"""
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entry = InstructorTask.objects.get(id=task_id)
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return json.loads(entry.task_output)
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def test_override_missing_current_task(self):
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self._test_missing_current_task(override_problem_score)
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def test_override_undefined_course(self):
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self._test_undefined_course(override_problem_score)
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def test_override_undefined_problem(self):
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self._test_undefined_problem(override_problem_score)
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def test_override_with_no_state(self):
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self._test_run_with_no_state(override_problem_score, 'overridden')
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def test_override_with_failure(self):
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self._test_run_with_failure(override_problem_score, 'We expected this to fail')
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def test_override_with_long_error_msg(self):
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self._test_run_with_long_error_msg(override_problem_score)
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def test_override_with_short_error_msg(self):
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self._test_run_with_short_error_msg(override_problem_score)
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def test_overriding_non_scorable(self):
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input_state = json.dumps({'done': True})
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num_students = 1
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self._create_students_with_state(num_students, input_state)
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task_entry = self._create_input_entry(score=0)
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mock_instance = MagicMock()
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del mock_instance.set_score
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with patch(
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'lms.djangoapps.instructor_task.tasks_helper.module_state.get_module_for_descriptor_internal'
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) as mock_get_module:
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mock_get_module.return_value = mock_instance
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with self.assertRaises(UpdateProblemModuleStateError):
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self._run_task_with_mock_celery(override_problem_score, task_entry.id, task_entry.task_id)
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# check values stored in table:
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entry = InstructorTask.objects.get(id=task_entry.id)
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output = json.loads(entry.task_output)
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self.assertEquals(output['exception'], "UpdateProblemModuleStateError")
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self.assertEquals(output['message'], "Scores cannot be overridden for this problem type.")
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self.assertGreater(len(output['traceback']), 0)
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def test_overriding_unaccessable(self):
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"""
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Tests rescores a problem in a course, for all students fails if user has answered a
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problem to which user does not have access to.
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"""
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input_state = json.dumps({'done': True})
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num_students = 1
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self._create_students_with_state(num_students, input_state)
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task_entry = self._create_input_entry(score=0)
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with patch('lms.djangoapps.instructor_task.tasks_helper.module_state.get_module_for_descriptor_internal',
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return_value=None):
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self._run_task_with_mock_celery(override_problem_score, task_entry.id, task_entry.task_id)
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self.assert_task_output(
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output=self.get_task_output(task_entry.id),
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total=num_students,
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attempted=num_students,
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succeeded=0,
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skipped=0,
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failed=num_students,
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action_name='overridden'
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)
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def test_overriding_success(self):
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"""
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Tests rescores a problem in a course, for all students succeeds.
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"""
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mock_instance = MagicMock()
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getattr(mock_instance, 'override_problem_score').return_value = None
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num_students = 10
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self._create_students_with_state(num_students)
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task_entry = self._create_input_entry(score=0)
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with patch(
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'lms.djangoapps.instructor_task.tasks_helper.module_state.get_module_for_descriptor_internal'
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) as mock_get_module:
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mock_get_module.return_value = mock_instance
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self._run_task_with_mock_celery(override_problem_score, task_entry.id, task_entry.task_id)
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self.assert_task_output(
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output=self.get_task_output(task_entry.id),
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total=num_students,
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attempted=num_students,
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succeeded=num_students,
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skipped=0,
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failed=0,
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action_name='overridden'
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)
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@attr(shard=3)
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@ddt.ddt
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class TestRescoreInstructorTask(TestInstructorTasks):
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"""Tests problem-rescoring instructor task."""
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def assert_task_output(self, output, **expected_output):
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"""
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Check & compare output of the task
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"""
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self.assertEqual(output.get('total'), expected_output.get('total'))
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self.assertEqual(output.get('attempted'), expected_output.get('attempted'))
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self.assertEqual(output.get('succeeded'), expected_output.get('succeeded'))
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self.assertEqual(output.get('skipped'), expected_output.get('skipped'))
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self.assertEqual(output.get('failed'), expected_output.get('failed'))
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self.assertEqual(output.get('action_name'), expected_output.get('action_name'))
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self.assertGreater(output.get('duration_ms'), expected_output.get('duration_ms', 0))
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def get_task_output(self, task_id):
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"""Get and load instructor task output"""
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entry = InstructorTask.objects.get(id=task_id)
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return json.loads(entry.task_output)
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def test_rescore_missing_current_task(self):
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self._test_missing_current_task(rescore_problem)
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def test_rescore_undefined_course(self):
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self._test_undefined_course(rescore_problem)
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def test_rescore_undefined_problem(self):
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self._test_undefined_problem(rescore_problem)
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def test_rescore_with_no_state(self):
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self._test_run_with_no_state(rescore_problem, 'rescored')
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def test_rescore_with_failure(self):
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self._test_run_with_failure(rescore_problem, 'We expected this to fail')
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def test_rescore_with_long_error_msg(self):
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self._test_run_with_long_error_msg(rescore_problem)
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def test_rescore_with_short_error_msg(self):
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self._test_run_with_short_error_msg(rescore_problem)
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def test_rescoring_unrescorable(self):
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input_state = json.dumps({'done': True})
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num_students = 1
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self._create_students_with_state(num_students, input_state)
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task_entry = self._create_input_entry()
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mock_instance = MagicMock()
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del mock_instance.rescore_problem
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del mock_instance.rescore
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with patch('lms.djangoapps.instructor_task.tasks_helper.module_state.get_module_for_descriptor_internal') as mock_get_module:
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mock_get_module.return_value = mock_instance
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with self.assertRaises(UpdateProblemModuleStateError):
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self._run_task_with_mock_celery(rescore_problem, task_entry.id, task_entry.task_id)
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# check values stored in table:
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entry = InstructorTask.objects.get(id=task_entry.id)
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output = json.loads(entry.task_output)
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self.assertEquals(output['exception'], "UpdateProblemModuleStateError")
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self.assertEquals(output['message'], "Specified module {0} of type {1} does not support rescoring.".format(
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self.location,
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mock_instance.__class__,
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))
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self.assertGreater(len(output['traceback']), 0)
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def test_rescoring_unaccessable(self):
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"""
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Tests rescores a problem in a course, for all students fails if user has answered a
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problem to which user does not have access to.
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"""
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input_state = json.dumps({'done': True})
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num_students = 1
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self._create_students_with_state(num_students, input_state)
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task_entry = self._create_input_entry()
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with patch('lms.djangoapps.instructor_task.tasks_helper.module_state.get_module_for_descriptor_internal', return_value=None):
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self._run_task_with_mock_celery(rescore_problem, task_entry.id, task_entry.task_id)
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self.assert_task_output(
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output=self.get_task_output(task_entry.id),
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total=num_students,
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attempted=num_students,
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succeeded=0,
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skipped=0,
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failed=num_students,
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action_name='rescored'
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)
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def test_rescoring_success(self):
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"""
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Tests rescores a problem in a course, for all students succeeds.
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"""
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mock_instance = MagicMock()
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getattr(mock_instance, 'rescore').return_value = None
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mock_instance.has_submitted_answer.return_value = True
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del mock_instance.done # old CAPA code used to use this value so we delete it here to be sure
|
|
|
|
num_students = 10
|
|
self._create_students_with_state(num_students)
|
|
task_entry = self._create_input_entry()
|
|
with patch(
|
|
'lms.djangoapps.instructor_task.tasks_helper.module_state.get_module_for_descriptor_internal'
|
|
) as mock_get_module:
|
|
mock_get_module.return_value = mock_instance
|
|
self._run_task_with_mock_celery(rescore_problem, task_entry.id, task_entry.task_id)
|
|
|
|
self.assert_task_output(
|
|
output=self.get_task_output(task_entry.id),
|
|
total=num_students,
|
|
attempted=num_students,
|
|
succeeded=num_students,
|
|
skipped=0,
|
|
failed=0,
|
|
action_name='rescored'
|
|
)
|
|
|
|
|
|
@attr(shard=3)
|
|
class TestResetAttemptsInstructorTask(TestInstructorTasks):
|
|
"""Tests instructor task that resets problem attempts."""
|
|
|
|
def test_reset_missing_current_task(self):
|
|
self._test_missing_current_task(reset_problem_attempts)
|
|
|
|
def test_reset_undefined_course(self):
|
|
self._test_undefined_course(reset_problem_attempts)
|
|
|
|
def test_reset_undefined_problem(self):
|
|
self._test_undefined_problem(reset_problem_attempts)
|
|
|
|
def test_reset_with_no_state(self):
|
|
self._test_run_with_no_state(reset_problem_attempts, 'reset')
|
|
|
|
def test_reset_with_failure(self):
|
|
self._test_run_with_failure(reset_problem_attempts, 'We expected this to fail')
|
|
|
|
def test_reset_with_long_error_msg(self):
|
|
self._test_run_with_long_error_msg(reset_problem_attempts)
|
|
|
|
def test_reset_with_short_error_msg(self):
|
|
self._test_run_with_short_error_msg(reset_problem_attempts)
|
|
|
|
def test_reset_with_some_state(self):
|
|
initial_attempts = 3
|
|
input_state = json.dumps({'attempts': initial_attempts})
|
|
num_students = 10
|
|
students = self._create_students_with_state(num_students, input_state)
|
|
# check that entries were set correctly
|
|
self._assert_num_attempts(students, initial_attempts)
|
|
# run the task
|
|
self._test_run_with_task(reset_problem_attempts, 'reset', num_students)
|
|
# check that entries were reset
|
|
self._assert_num_attempts(students, 0)
|
|
|
|
def test_reset_with_zero_attempts(self):
|
|
initial_attempts = 0
|
|
input_state = json.dumps({'attempts': initial_attempts})
|
|
num_students = 10
|
|
students = self._create_students_with_state(num_students, input_state)
|
|
# check that entries were set correctly
|
|
self._assert_num_attempts(students, initial_attempts)
|
|
# run the task
|
|
self._test_run_with_task(reset_problem_attempts, 'reset', 0, expected_num_skipped=num_students)
|
|
# check that entries were reset
|
|
self._assert_num_attempts(students, 0)
|
|
|
|
def _test_reset_with_student(self, use_email):
|
|
"""Run a reset task for one student, with several StudentModules for the problem defined."""
|
|
num_students = 10
|
|
initial_attempts = 3
|
|
input_state = json.dumps({'attempts': initial_attempts})
|
|
students = self._create_students_with_state(num_students, input_state)
|
|
# check that entries were set correctly
|
|
for student in students:
|
|
module = StudentModule.objects.get(course_id=self.course.id,
|
|
student=student,
|
|
module_state_key=self.location)
|
|
state = json.loads(module.state)
|
|
self.assertEquals(state['attempts'], initial_attempts)
|
|
|
|
if use_email:
|
|
student_ident = students[3].email
|
|
else:
|
|
student_ident = students[3].username
|
|
task_entry = self._create_input_entry(student_ident)
|
|
|
|
status = self._run_task_with_mock_celery(reset_problem_attempts, task_entry.id, task_entry.task_id)
|
|
# check return value
|
|
self.assertEquals(status.get('attempted'), 1)
|
|
self.assertEquals(status.get('succeeded'), 1)
|
|
self.assertEquals(status.get('total'), 1)
|
|
self.assertEquals(status.get('action_name'), 'reset')
|
|
self.assertGreater(status.get('duration_ms'), 0)
|
|
|
|
# compare with entry in table:
|
|
entry = InstructorTask.objects.get(id=task_entry.id)
|
|
self.assertEquals(json.loads(entry.task_output), status)
|
|
self.assertEquals(entry.task_state, SUCCESS)
|
|
# check that the correct entry was reset
|
|
for index, student in enumerate(students):
|
|
module = StudentModule.objects.get(course_id=self.course.id,
|
|
student=student,
|
|
module_state_key=self.location)
|
|
state = json.loads(module.state)
|
|
if index == 3:
|
|
self.assertEquals(state['attempts'], 0)
|
|
else:
|
|
self.assertEquals(state['attempts'], initial_attempts)
|
|
|
|
def test_reset_with_student_username(self):
|
|
self._test_reset_with_student(False)
|
|
|
|
def test_reset_with_student_email(self):
|
|
self._test_reset_with_student(True)
|
|
|
|
|
|
@attr(shard=3)
|
|
class TestDeleteStateInstructorTask(TestInstructorTasks):
|
|
"""Tests instructor task that deletes problem state."""
|
|
|
|
def test_delete_missing_current_task(self):
|
|
self._test_missing_current_task(delete_problem_state)
|
|
|
|
def test_delete_undefined_course(self):
|
|
self._test_undefined_course(delete_problem_state)
|
|
|
|
def test_delete_undefined_problem(self):
|
|
self._test_undefined_problem(delete_problem_state)
|
|
|
|
def test_delete_with_no_state(self):
|
|
self._test_run_with_no_state(delete_problem_state, 'deleted')
|
|
|
|
def test_delete_with_failure(self):
|
|
self._test_run_with_failure(delete_problem_state, 'We expected this to fail')
|
|
|
|
def test_delete_with_long_error_msg(self):
|
|
self._test_run_with_long_error_msg(delete_problem_state)
|
|
|
|
def test_delete_with_short_error_msg(self):
|
|
self._test_run_with_short_error_msg(delete_problem_state)
|
|
|
|
def test_delete_with_some_state(self):
|
|
# This will create StudentModule entries -- we don't have to worry about
|
|
# the state inside them.
|
|
num_students = 10
|
|
students = self._create_students_with_state(num_students)
|
|
# check that entries were created correctly
|
|
for student in students:
|
|
StudentModule.objects.get(course_id=self.course.id,
|
|
student=student,
|
|
module_state_key=self.location)
|
|
self._test_run_with_task(delete_problem_state, 'deleted', num_students)
|
|
# confirm that no state can be found anymore:
|
|
for student in students:
|
|
with self.assertRaises(StudentModule.DoesNotExist):
|
|
StudentModule.objects.get(course_id=self.course.id,
|
|
student=student,
|
|
module_state_key=self.location)
|
|
|
|
|
|
class TestCertificateGenerationnstructorTask(TestInstructorTasks):
|
|
"""Tests instructor task that generates student certificates."""
|
|
|
|
def test_generate_certificates_missing_current_task(self):
|
|
"""
|
|
Test error is raised when certificate generation task run without current task
|
|
"""
|
|
self._test_missing_current_task(generate_certificates)
|
|
|
|
def test_generate_certificates_task_run(self):
|
|
"""
|
|
Test certificate generation task run without any errors
|
|
"""
|
|
self._test_run_with_task(
|
|
generate_certificates,
|
|
'certificates generated',
|
|
0,
|
|
0,
|
|
expected_attempted=1,
|
|
expected_total=1
|
|
)
|
|
|
|
|
|
class TestOra2ResponsesInstructorTask(TestInstructorTasks):
|
|
"""Tests instructor task that fetches ora2 response data."""
|
|
|
|
def test_ora2_missing_current_task(self):
|
|
self._test_missing_current_task(export_ora2_data)
|
|
|
|
def test_ora2_with_failure(self):
|
|
self._test_run_with_failure(export_ora2_data, 'We expected this to fail')
|
|
|
|
def test_ora2_with_long_error_msg(self):
|
|
self._test_run_with_long_error_msg(export_ora2_data)
|
|
|
|
def test_ora2_with_short_error_msg(self):
|
|
self._test_run_with_short_error_msg(export_ora2_data)
|
|
|
|
def test_ora2_runs_task(self):
|
|
task_entry = self._create_input_entry()
|
|
task_xmodule_args = self._get_xmodule_instance_args()
|
|
|
|
with patch('lms.djangoapps.instructor_task.tasks.run_main_task') as mock_main_task:
|
|
export_ora2_data(task_entry.id, task_xmodule_args)
|
|
|
|
action_name = ugettext_noop('generated')
|
|
task_fn = partial(upload_ora2_data, task_xmodule_args)
|
|
|
|
mock_main_task.assert_called_once_with_args(task_entry.id, task_fn, action_name)
|