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217 lines
7.5 KiB
Python
217 lines
7.5 KiB
Python
from typing import cast
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from django.db import transaction
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from django.tasks import ResultStatus, default_task_backend, tasks
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from django.tasks.backends.dummy import DummyBackend
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from django.tasks.exceptions import ResultDoesNotExist
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from django.tasks.task import Task
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from django.test import SimpleTestCase, TransactionTestCase, override_settings
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from . import tasks as test_tasks
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@override_settings(
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TASKS={"default": {"BACKEND": "django.tasks.backends.dummy.DummyBackend"}}
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)
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class DummyBackendTestCase(SimpleTestCase):
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def setUp(self):
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default_task_backend.clear()
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def test_using_correct_backend(self):
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self.assertEqual(default_task_backend, tasks["default"])
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self.assertIsInstance(tasks["default"], DummyBackend)
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def test_enqueue_task(self):
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for task in [test_tasks.noop_task, test_tasks.noop_task_async]:
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with self.subTest(task):
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result = cast(Task, task).enqueue(1, two=3)
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self.assertEqual(result.status, ResultStatus.NEW)
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self.assertIsNone(result.started_at)
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self.assertIsNone(result.finished_at)
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with self.assertRaisesMessage(ValueError, "Task has not finished yet"):
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result.return_value # noqa:B018
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self.assertEqual(result.task, task)
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self.assertEqual(result.args, [1])
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self.assertEqual(result.kwargs, {"two": 3})
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self.assertIn(result, default_task_backend.results)
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async def test_enqueue_task_async(self):
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for task in [test_tasks.noop_task, test_tasks.noop_task_async]:
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with self.subTest(task):
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result = await cast(Task, task).aenqueue()
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self.assertEqual(result.status, ResultStatus.NEW)
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self.assertIsNone(result.started_at)
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self.assertIsNone(result.finished_at)
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with self.assertRaisesMessage(ValueError, "Task has not finished yet"):
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result.return_value # noqa:B018
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self.assertEqual(result.task, task)
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self.assertEqual(result.args, [])
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self.assertEqual(result.kwargs, {})
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self.assertIn(result, default_task_backend.results)
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def test_get_result(self):
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result = default_task_backend.enqueue(test_tasks.noop_task, (), {})
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new_result = default_task_backend.get_result(result.id)
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self.assertEqual(result, new_result)
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async def test_get_result_async(self):
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result = await default_task_backend.aenqueue(test_tasks.noop_task, (), {})
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new_result = await default_task_backend.aget_result(result.id)
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self.assertEqual(result, new_result)
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def test_refresh_result(self):
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result = default_task_backend.enqueue(
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test_tasks.calculate_meaning_of_life, (), {}
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)
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enqueued_result = default_task_backend.results[0]
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object.__setattr__(enqueued_result, "status", ResultStatus.COMPLETE)
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self.assertEqual(result.status, ResultStatus.NEW)
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result.refresh()
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self.assertEqual(result.status, ResultStatus.COMPLETE)
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async def test_refresh_result_async(self):
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result = await default_task_backend.aenqueue(
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test_tasks.calculate_meaning_of_life, (), {}
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)
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enqueued_result = default_task_backend.results[0]
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object.__setattr__(enqueued_result, "status", ResultStatus.COMPLETE)
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self.assertEqual(result.status, ResultStatus.NEW)
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await result.arefresh()
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self.assertEqual(result.status, ResultStatus.COMPLETE)
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async def test_get_missing_result(self):
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with self.assertRaises(ResultDoesNotExist):
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default_task_backend.get_result("123")
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with self.assertRaises(ResultDoesNotExist):
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await default_task_backend.aget_result("123")
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def test_enqueue_on_commit(self):
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self.assertTrue(
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default_task_backend._get_enqueue_on_commit_for_task(
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test_tasks.enqueue_on_commit_task
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)
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)
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def test_enqueue_logs(self):
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with self.assertLogs("django.tasks", level="DEBUG") as captured_logs:
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result = test_tasks.noop_task.enqueue()
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self.assertEqual(len(captured_logs.output), 1)
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self.assertIn("enqueued", captured_logs.output[0])
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self.assertIn(result.id, captured_logs.output[0])
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class DummyBackendTransactionTestCase(TransactionTestCase):
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available_apps = []
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@override_settings(
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TASKS={
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"default": {
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"BACKEND": "django.tasks.backends.dummy.DummyBackend",
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"ENQUEUE_ON_COMMIT": True,
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}
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}
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)
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def test_wait_until_transaction_commit(self):
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self.assertTrue(default_task_backend.enqueue_on_commit)
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self.assertTrue(
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default_task_backend._get_enqueue_on_commit_for_task(test_tasks.noop_task)
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)
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with transaction.atomic():
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test_tasks.noop_task.enqueue()
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self.assertEqual(len(default_task_backend.results), 0)
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self.assertEqual(len(default_task_backend.results), 1)
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@override_settings(
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TASKS={
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"default": {
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"BACKEND": "django.tasks.backends.dummy.DummyBackend",
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"ENQUEUE_ON_COMMIT": False,
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}
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}
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)
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def test_doesnt_wait_until_transaction_commit(self):
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self.assertFalse(default_task_backend.enqueue_on_commit)
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self.assertFalse(
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default_task_backend._get_enqueue_on_commit_for_task(test_tasks.noop_task)
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)
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with transaction.atomic():
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result = test_tasks.noop_task.enqueue()
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self.assertIsNotNone(result.enqueued_at)
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self.assertEqual(len(default_task_backend.results), 1)
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self.assertEqual(len(default_task_backend.results), 1)
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@override_settings(
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TASKS={
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"default": {
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"BACKEND": "django.tasks.backends.dummy.DummyBackend",
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}
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}
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)
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def test_wait_until_transaction_by_default(self):
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self.assertTrue(default_task_backend.enqueue_on_commit)
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self.assertTrue(
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default_task_backend._get_enqueue_on_commit_for_task(test_tasks.noop_task)
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)
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with transaction.atomic():
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result = test_tasks.noop_task.enqueue()
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self.assertIsNone(result.enqueued_at)
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self.assertEqual(len(default_task_backend.results), 0)
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self.assertEqual(len(default_task_backend.results), 1)
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self.assertIsNone(result.enqueued_at)
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result.refresh()
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self.assertIsNotNone(result.enqueued_at)
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@override_settings(
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TASKS={
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"default": {
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"BACKEND": "django.tasks.backends.dummy.DummyBackend",
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"ENQUEUE_ON_COMMIT": False,
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}
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}
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)
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def test_task_specific_enqueue_on_commit(self):
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self.assertFalse(default_task_backend.enqueue_on_commit)
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self.assertTrue(test_tasks.enqueue_on_commit_task.enqueue_on_commit)
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self.assertTrue(
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default_task_backend._get_enqueue_on_commit_for_task(
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test_tasks.enqueue_on_commit_task
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)
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)
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with transaction.atomic():
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result = test_tasks.enqueue_on_commit_task.enqueue()
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self.assertIsNone(result.enqueued_at)
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self.assertEqual(len(default_task_backend.results), 0)
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self.assertEqual(len(default_task_backend.results), 1)
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self.assertIsNone(result.enqueued_at)
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result.refresh()
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self.assertIsNotNone(result.enqueued_at)
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