5b769df452
refactor _generate_items_for_subtask not to chunk queries use django's iterator methor for querysets remove bulk email query settings use read_replica if available, since this is read-only update changelog
82 lines
3.3 KiB
Python
82 lines
3.3 KiB
Python
"""
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Unit tests for instructor_task subtasks.
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"""
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from uuid import uuid4
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from mock import Mock, patch
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from student.models import CourseEnrollment
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from instructor_task.subtasks import queue_subtasks_for_query
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from instructor_task.tests.factories import InstructorTaskFactory
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from instructor_task.tests.test_base import InstructorTaskCourseTestCase
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class TestSubtasks(InstructorTaskCourseTestCase):
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"""Tests for subtasks."""
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def setUp(self):
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super(TestSubtasks, self).setUp()
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self.initialize_course()
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def _enroll_students_in_course(self, course_id, num_students):
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"""Create and enroll some students in the course."""
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for _ in range(num_students):
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random_id = uuid4().hex[:8]
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self.create_student(username='student{0}'.format(random_id))
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def _queue_subtasks(self, create_subtask_fcn, items_per_task, initial_count, extra_count):
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"""Queue subtasks while enrolling more students into course in the middle of the process."""
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task_id = str(uuid4())
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instructor_task = InstructorTaskFactory.create(
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course_id=self.course.id,
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task_id=task_id,
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task_key='dummy_task_key',
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task_type='bulk_course_email',
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)
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self._enroll_students_in_course(self.course.id, initial_count)
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task_queryset = CourseEnrollment.objects.filter(course_id=self.course.id)
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def initialize_subtask_info(*args): # pylint: disable=unused-argument
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"""Instead of initializing subtask info enroll some more students into course."""
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self._enroll_students_in_course(self.course.id, extra_count)
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return {}
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with patch('instructor_task.subtasks.initialize_subtask_info') as mock_initialize_subtask_info:
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mock_initialize_subtask_info.side_effect = initialize_subtask_info
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queue_subtasks_for_query(
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entry=instructor_task,
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action_name='action_name',
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create_subtask_fcn=create_subtask_fcn,
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item_queryset=task_queryset,
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item_fields=[],
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items_per_task=items_per_task,
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)
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def test_queue_subtasks_for_query1(self):
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"""Test queue_subtasks_for_query() if the last subtask only needs to accommodate < items_per_tasks items."""
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mock_create_subtask_fcn = Mock()
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self._queue_subtasks(mock_create_subtask_fcn, 3, 7, 1)
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# Check number of items for each subtask
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mock_create_subtask_fcn_args = mock_create_subtask_fcn.call_args_list
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self.assertEqual(len(mock_create_subtask_fcn_args[0][0][0]), 3)
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self.assertEqual(len(mock_create_subtask_fcn_args[1][0][0]), 3)
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self.assertEqual(len(mock_create_subtask_fcn_args[2][0][0]), 2)
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def test_queue_subtasks_for_query2(self):
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"""Test queue_subtasks_for_query() if the last subtask needs to accommodate > items_per_task items."""
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mock_create_subtask_fcn = Mock()
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self._queue_subtasks(mock_create_subtask_fcn, 3, 8, 3)
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# Check number of items for each subtask
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mock_create_subtask_fcn_args = mock_create_subtask_fcn.call_args_list
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self.assertEqual(len(mock_create_subtask_fcn_args[0][0][0]), 3)
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self.assertEqual(len(mock_create_subtask_fcn_args[1][0][0]), 3)
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self.assertEqual(len(mock_create_subtask_fcn_args[2][0][0]), 5)
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