266 lines
12 KiB
Python
266 lines
12 KiB
Python
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"""
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Test for LMS instructor background task views.
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"""
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import json
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from celery.states import SUCCESS, FAILURE, REVOKED, PENDING
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from mock import Mock, patch
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from django.utils.datastructures import MultiValueDict
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from instructor_task.models import PROGRESS
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from instructor_task.tests.test_base import (InstructorTaskTestCase,
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TEST_FAILURE_MESSAGE,
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TEST_FAILURE_EXCEPTION)
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from instructor_task.views import instructor_task_status, get_task_completion_info
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class InstructorTaskReportTest(InstructorTaskTestCase):
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"""
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Tests view methods that involve the reporting of status for background tasks.
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"""
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def _get_instructor_task_status(self, task_id):
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"""Returns status corresponding to task_id via api method."""
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request = Mock()
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request.REQUEST = {'task_id': task_id}
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return instructor_task_status(request)
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def test_instructor_task_status(self):
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instructor_task = self._create_failure_entry()
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task_id = instructor_task.task_id
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request = Mock()
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request.REQUEST = {'task_id': task_id}
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response = instructor_task_status(request)
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output = json.loads(response.content)
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self.assertEquals(output['task_id'], task_id)
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def test_missing_instructor_task_status(self):
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task_id = "missing_id"
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request = Mock()
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request.REQUEST = {'task_id': task_id}
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response = instructor_task_status(request)
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output = json.loads(response.content)
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self.assertEquals(output, {})
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def test_instructor_task_status_list(self):
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# Fetch status for existing tasks by arg list, as if called from ajax.
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# Note that ajax does something funny with the marshalling of
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# list data, so the key value has "[]" appended to it.
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task_ids = [(self._create_failure_entry()).task_id for _ in range(1, 5)]
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request = Mock()
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request.REQUEST = MultiValueDict({'task_ids[]': task_ids})
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response = instructor_task_status(request)
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output = json.loads(response.content)
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self.assertEquals(len(output), len(task_ids))
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for task_id in task_ids:
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self.assertEquals(output[task_id]['task_id'], task_id)
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def test_get_status_from_failure(self):
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# get status for a task that has already failed
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instructor_task = self._create_failure_entry()
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task_id = instructor_task.task_id
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response = self._get_instructor_task_status(task_id)
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output = json.loads(response.content)
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self.assertEquals(output['message'], TEST_FAILURE_MESSAGE)
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self.assertEquals(output['succeeded'], False)
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self.assertEquals(output['task_id'], task_id)
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self.assertEquals(output['task_state'], FAILURE)
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self.assertFalse(output['in_progress'])
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expected_progress = {'exception': TEST_FAILURE_EXCEPTION,
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'message': TEST_FAILURE_MESSAGE}
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self.assertEquals(output['task_progress'], expected_progress)
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def test_get_status_from_success(self):
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# get status for a task that has already succeeded
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instructor_task = self._create_success_entry()
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task_id = instructor_task.task_id
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response = self._get_instructor_task_status(task_id)
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output = json.loads(response.content)
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self.assertEquals(output['message'], "Problem rescored for 2 of 3 students (out of 5)")
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self.assertEquals(output['succeeded'], False)
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self.assertEquals(output['task_id'], task_id)
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self.assertEquals(output['task_state'], SUCCESS)
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self.assertFalse(output['in_progress'])
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expected_progress = {'attempted': 3,
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'updated': 2,
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'total': 5,
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'action_name': 'rescored'}
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self.assertEquals(output['task_progress'], expected_progress)
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def _test_get_status_from_result(self, task_id, mock_result):
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"""
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Provides mock result to caller of instructor_task_status, and returns resulting output.
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"""
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with patch('celery.result.AsyncResult.__new__') as mock_result_ctor:
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mock_result_ctor.return_value = mock_result
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response = self._get_instructor_task_status(task_id)
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output = json.loads(response.content)
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self.assertEquals(output['task_id'], task_id)
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return output
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def test_get_status_to_pending(self):
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# get status for a task that hasn't begun to run yet
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instructor_task = self._create_entry()
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task_id = instructor_task.task_id
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mock_result = Mock()
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mock_result.task_id = task_id
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mock_result.state = PENDING
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output = self._test_get_status_from_result(task_id, mock_result)
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for key in ['message', 'succeeded', 'task_progress']:
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self.assertTrue(key not in output)
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self.assertEquals(output['task_state'], 'PENDING')
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self.assertTrue(output['in_progress'])
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def test_update_progress_to_progress(self):
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# view task entry for task in progress
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instructor_task = self._create_progress_entry()
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task_id = instructor_task.task_id
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mock_result = Mock()
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mock_result.task_id = task_id
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mock_result.state = PROGRESS
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mock_result.result = {'attempted': 5,
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'updated': 4,
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'total': 10,
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'action_name': 'rescored'}
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output = self._test_get_status_from_result(task_id, mock_result)
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self.assertEquals(output['message'], "Progress: rescored 4 of 5 so far (out of 10)")
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self.assertEquals(output['succeeded'], False)
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self.assertEquals(output['task_state'], PROGRESS)
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self.assertTrue(output['in_progress'])
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self.assertEquals(output['task_progress'], mock_result.result)
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def test_update_progress_to_failure(self):
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# view task entry for task in progress that later fails
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instructor_task = self._create_progress_entry()
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task_id = instructor_task.task_id
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mock_result = Mock()
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mock_result.task_id = task_id
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mock_result.state = FAILURE
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mock_result.result = NotImplementedError("This task later failed.")
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mock_result.traceback = "random traceback"
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output = self._test_get_status_from_result(task_id, mock_result)
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self.assertEquals(output['message'], "This task later failed.")
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self.assertEquals(output['succeeded'], False)
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self.assertEquals(output['task_state'], FAILURE)
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self.assertFalse(output['in_progress'])
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expected_progress = {'exception': 'NotImplementedError',
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'message': "This task later failed.",
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'traceback': "random traceback"}
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self.assertEquals(output['task_progress'], expected_progress)
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def test_update_progress_to_revoked(self):
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# view task entry for task in progress that later fails
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instructor_task = self._create_progress_entry()
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task_id = instructor_task.task_id
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mock_result = Mock()
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mock_result.task_id = task_id
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mock_result.state = REVOKED
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output = self._test_get_status_from_result(task_id, mock_result)
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self.assertEquals(output['message'], "Task revoked before running")
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self.assertEquals(output['succeeded'], False)
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self.assertEquals(output['task_state'], REVOKED)
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self.assertFalse(output['in_progress'])
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expected_progress = {'message': "Task revoked before running"}
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self.assertEquals(output['task_progress'], expected_progress)
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def _get_output_for_task_success(self, attempted, updated, total, student=None):
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"""returns the task_id and the result returned by instructor_task_status()."""
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# view task entry for task in progress
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instructor_task = self._create_progress_entry(student)
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task_id = instructor_task.task_id
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mock_result = Mock()
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mock_result.task_id = task_id
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mock_result.state = SUCCESS
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mock_result.result = {'attempted': attempted,
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'updated': updated,
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'total': total,
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'action_name': 'rescored'}
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output = self._test_get_status_from_result(task_id, mock_result)
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return output
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def test_update_progress_to_success(self):
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output = self._get_output_for_task_success(10, 8, 10)
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self.assertEquals(output['message'], "Problem rescored for 8 of 10 students")
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self.assertEquals(output['succeeded'], False)
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self.assertEquals(output['task_state'], SUCCESS)
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self.assertFalse(output['in_progress'])
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expected_progress = {'attempted': 10,
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'updated': 8,
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'total': 10,
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'action_name': 'rescored'}
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self.assertEquals(output['task_progress'], expected_progress)
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def test_success_messages(self):
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output = self._get_output_for_task_success(0, 0, 10)
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self.assertEqual(output['message'], "Unable to find any students with submissions to be rescored (out of 10)")
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self.assertFalse(output['succeeded'])
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output = self._get_output_for_task_success(10, 0, 10)
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self.assertEqual(output['message'], "Problem failed to be rescored for any of 10 students")
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self.assertFalse(output['succeeded'])
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output = self._get_output_for_task_success(10, 8, 10)
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self.assertEqual(output['message'], "Problem rescored for 8 of 10 students")
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self.assertFalse(output['succeeded'])
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output = self._get_output_for_task_success(9, 8, 10)
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self.assertEqual(output['message'], "Problem rescored for 8 of 9 students (out of 10)")
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self.assertFalse(output['succeeded'])
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output = self._get_output_for_task_success(10, 10, 10)
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self.assertEqual(output['message'], "Problem successfully rescored for 10 students")
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self.assertTrue(output['succeeded'])
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output = self._get_output_for_task_success(0, 0, 1, student=self.student)
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self.assertTrue("Unable to find submission to be rescored for student" in output['message'])
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self.assertFalse(output['succeeded'])
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output = self._get_output_for_task_success(1, 0, 1, student=self.student)
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self.assertTrue("Problem failed to be rescored for student" in output['message'])
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self.assertFalse(output['succeeded'])
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output = self._get_output_for_task_success(1, 1, 1, student=self.student)
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self.assertTrue("Problem successfully rescored for student" in output['message'])
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self.assertTrue(output['succeeded'])
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def test_get_info_for_queuing_task(self):
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# get status for a task that is still running:
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instructor_task = self._create_entry()
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succeeded, message = get_task_completion_info(instructor_task)
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self.assertFalse(succeeded)
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self.assertEquals(message, "No status information available")
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def test_get_info_for_missing_output(self):
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# check for missing task_output
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instructor_task = self._create_success_entry()
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instructor_task.task_output = None
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succeeded, message = get_task_completion_info(instructor_task)
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self.assertFalse(succeeded)
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self.assertEquals(message, "No status information available")
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def test_get_info_for_broken_output(self):
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# check for non-JSON task_output
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instructor_task = self._create_success_entry()
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instructor_task.task_output = "{ bad"
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succeeded, message = get_task_completion_info(instructor_task)
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self.assertFalse(succeeded)
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self.assertEquals(message, "No parsable status information available")
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def test_get_info_for_empty_output(self):
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# check for JSON task_output with missing keys
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instructor_task = self._create_success_entry()
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instructor_task.task_output = "{}"
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succeeded, message = get_task_completion_info(instructor_task)
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self.assertFalse(succeeded)
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self.assertEquals(message, "No progress status information available")
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def test_get_info_for_broken_input(self):
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# check for non-JSON task_input, but then just ignore it
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instructor_task = self._create_success_entry()
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instructor_task.task_input = "{ bad"
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succeeded, message = get_task_completion_info(instructor_task)
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self.assertFalse(succeeded)
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self.assertEquals(message, "Problem rescored for 2 of 3 students (out of 5)")
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