mirror of
https://github.com/django/django.git
synced 2024-11-24 02:47:35 +01:00
260 lines
9.8 KiB
Python
260 lines
9.8 KiB
Python
import json
|
|
import xml.etree.ElementTree
|
|
from datetime import datetime
|
|
|
|
from asgiref.sync import async_to_sync, sync_to_async
|
|
|
|
from django.db import NotSupportedError, connection
|
|
from django.db.models import Prefetch, Sum
|
|
from django.test import TestCase, skipIfDBFeature, skipUnlessDBFeature
|
|
|
|
from .models import RelatedModel, SimpleModel
|
|
|
|
|
|
class AsyncQuerySetTest(TestCase):
|
|
@classmethod
|
|
def setUpTestData(cls):
|
|
cls.s1 = SimpleModel.objects.create(
|
|
field=1,
|
|
created=datetime(2022, 1, 1, 0, 0, 0),
|
|
)
|
|
cls.s2 = SimpleModel.objects.create(
|
|
field=2,
|
|
created=datetime(2022, 1, 1, 0, 0, 1),
|
|
)
|
|
cls.s3 = SimpleModel.objects.create(
|
|
field=3,
|
|
created=datetime(2022, 1, 1, 0, 0, 2),
|
|
)
|
|
cls.r1 = RelatedModel.objects.create(simple=cls.s1)
|
|
cls.r2 = RelatedModel.objects.create(simple=cls.s2)
|
|
cls.r3 = RelatedModel.objects.create(simple=cls.s3)
|
|
|
|
@staticmethod
|
|
def _get_db_feature(connection_, feature_name):
|
|
# Wrapper to avoid accessing connection attributes until inside
|
|
# coroutine function. Connection access is thread sensitive and cannot
|
|
# be passed across sync/async boundaries.
|
|
return getattr(connection_.features, feature_name)
|
|
|
|
async def test_async_iteration(self):
|
|
results = []
|
|
async for m in SimpleModel.objects.order_by("pk"):
|
|
results.append(m)
|
|
self.assertEqual(results, [self.s1, self.s2, self.s3])
|
|
|
|
async def test_aiterator(self):
|
|
qs = SimpleModel.objects.aiterator()
|
|
results = []
|
|
async for m in qs:
|
|
results.append(m)
|
|
self.assertCountEqual(results, [self.s1, self.s2, self.s3])
|
|
|
|
async def test_aiterator_prefetch_related(self):
|
|
results = []
|
|
async for s in SimpleModel.objects.prefetch_related(
|
|
Prefetch("relatedmodel_set", to_attr="prefetched_relatedmodel")
|
|
).aiterator():
|
|
results.append(s.prefetched_relatedmodel)
|
|
self.assertCountEqual(results, [[self.r1], [self.r2], [self.r3]])
|
|
|
|
async def test_aiterator_invalid_chunk_size(self):
|
|
msg = "Chunk size must be strictly positive."
|
|
for size in [0, -1]:
|
|
qs = SimpleModel.objects.aiterator(chunk_size=size)
|
|
with self.subTest(size=size), self.assertRaisesMessage(ValueError, msg):
|
|
async for m in qs:
|
|
pass
|
|
|
|
async def test_acount(self):
|
|
count = await SimpleModel.objects.acount()
|
|
self.assertEqual(count, 3)
|
|
|
|
async def test_acount_cached_result(self):
|
|
qs = SimpleModel.objects.all()
|
|
# Evaluate the queryset to populate the query cache.
|
|
[x async for x in qs]
|
|
count = await qs.acount()
|
|
self.assertEqual(count, 3)
|
|
|
|
await sync_to_async(SimpleModel.objects.create)(
|
|
field=4,
|
|
created=datetime(2022, 1, 1, 0, 0, 0),
|
|
)
|
|
# The query cache is used.
|
|
count = await qs.acount()
|
|
self.assertEqual(count, 3)
|
|
|
|
async def test_aget(self):
|
|
instance = await SimpleModel.objects.aget(field=1)
|
|
self.assertEqual(instance, self.s1)
|
|
|
|
async def test_acreate(self):
|
|
await SimpleModel.objects.acreate(field=4)
|
|
self.assertEqual(await SimpleModel.objects.acount(), 4)
|
|
|
|
async def test_aget_or_create(self):
|
|
instance, created = await SimpleModel.objects.aget_or_create(field=4)
|
|
self.assertEqual(await SimpleModel.objects.acount(), 4)
|
|
self.assertIs(created, True)
|
|
|
|
async def test_aupdate_or_create(self):
|
|
instance, created = await SimpleModel.objects.aupdate_or_create(
|
|
id=self.s1.id, defaults={"field": 2}
|
|
)
|
|
self.assertEqual(instance, self.s1)
|
|
self.assertEqual(instance.field, 2)
|
|
self.assertIs(created, False)
|
|
instance, created = await SimpleModel.objects.aupdate_or_create(field=4)
|
|
self.assertEqual(await SimpleModel.objects.acount(), 4)
|
|
self.assertIs(created, True)
|
|
instance, created = await SimpleModel.objects.aupdate_or_create(
|
|
field=5, defaults={"field": 7}, create_defaults={"field": 6}
|
|
)
|
|
self.assertEqual(await SimpleModel.objects.acount(), 5)
|
|
self.assertIs(created, True)
|
|
self.assertEqual(instance.field, 6)
|
|
|
|
@skipUnlessDBFeature("has_bulk_insert")
|
|
@async_to_sync
|
|
async def test_abulk_create(self):
|
|
instances = [SimpleModel(field=i) for i in range(10)]
|
|
qs = await SimpleModel.objects.abulk_create(instances)
|
|
self.assertEqual(len(qs), 10)
|
|
|
|
@skipUnlessDBFeature("has_bulk_insert", "supports_update_conflicts")
|
|
@skipIfDBFeature("supports_update_conflicts_with_target")
|
|
@async_to_sync
|
|
async def test_update_conflicts_unique_field_unsupported(self):
|
|
msg = (
|
|
"This database backend does not support updating conflicts with specifying "
|
|
"unique fields that can trigger the upsert."
|
|
)
|
|
with self.assertRaisesMessage(NotSupportedError, msg):
|
|
await SimpleModel.objects.abulk_create(
|
|
[SimpleModel(field=1), SimpleModel(field=2)],
|
|
update_conflicts=True,
|
|
update_fields=["field"],
|
|
unique_fields=["created"],
|
|
)
|
|
|
|
async def test_abulk_update(self):
|
|
instances = SimpleModel.objects.all()
|
|
async for instance in instances:
|
|
instance.field = instance.field * 10
|
|
|
|
await SimpleModel.objects.abulk_update(instances, ["field"])
|
|
|
|
qs = [(o.pk, o.field) async for o in SimpleModel.objects.all()]
|
|
self.assertCountEqual(
|
|
qs,
|
|
[(self.s1.pk, 10), (self.s2.pk, 20), (self.s3.pk, 30)],
|
|
)
|
|
|
|
async def test_ain_bulk(self):
|
|
res = await SimpleModel.objects.ain_bulk()
|
|
self.assertEqual(
|
|
res,
|
|
{self.s1.pk: self.s1, self.s2.pk: self.s2, self.s3.pk: self.s3},
|
|
)
|
|
|
|
res = await SimpleModel.objects.ain_bulk([self.s2.pk])
|
|
self.assertEqual(res, {self.s2.pk: self.s2})
|
|
|
|
res = await SimpleModel.objects.ain_bulk([self.s2.pk], field_name="id")
|
|
self.assertEqual(res, {self.s2.pk: self.s2})
|
|
|
|
async def test_alatest(self):
|
|
instance = await SimpleModel.objects.alatest("created")
|
|
self.assertEqual(instance, self.s3)
|
|
|
|
instance = await SimpleModel.objects.alatest("-created")
|
|
self.assertEqual(instance, self.s1)
|
|
|
|
async def test_aearliest(self):
|
|
instance = await SimpleModel.objects.aearliest("created")
|
|
self.assertEqual(instance, self.s1)
|
|
|
|
instance = await SimpleModel.objects.aearliest("-created")
|
|
self.assertEqual(instance, self.s3)
|
|
|
|
async def test_afirst(self):
|
|
instance = await SimpleModel.objects.afirst()
|
|
self.assertEqual(instance, self.s1)
|
|
|
|
instance = await SimpleModel.objects.filter(field=4).afirst()
|
|
self.assertIsNone(instance)
|
|
|
|
async def test_alast(self):
|
|
instance = await SimpleModel.objects.alast()
|
|
self.assertEqual(instance, self.s3)
|
|
|
|
instance = await SimpleModel.objects.filter(field=4).alast()
|
|
self.assertIsNone(instance)
|
|
|
|
async def test_aaggregate(self):
|
|
total = await SimpleModel.objects.aaggregate(total=Sum("field"))
|
|
self.assertEqual(total, {"total": 6})
|
|
|
|
async def test_aexists(self):
|
|
check = await SimpleModel.objects.filter(field=1).aexists()
|
|
self.assertIs(check, True)
|
|
|
|
check = await SimpleModel.objects.filter(field=4).aexists()
|
|
self.assertIs(check, False)
|
|
|
|
async def test_acontains(self):
|
|
check = await SimpleModel.objects.acontains(self.s1)
|
|
self.assertIs(check, True)
|
|
# Unsaved instances are not allowed, so use an ID known not to exist.
|
|
check = await SimpleModel.objects.acontains(
|
|
SimpleModel(id=self.s3.id + 1, field=4)
|
|
)
|
|
self.assertIs(check, False)
|
|
|
|
async def test_aupdate(self):
|
|
await SimpleModel.objects.aupdate(field=99)
|
|
qs = [o async for o in SimpleModel.objects.all()]
|
|
values = [instance.field for instance in qs]
|
|
self.assertEqual(set(values), {99})
|
|
|
|
async def test_adelete(self):
|
|
await SimpleModel.objects.filter(field=2).adelete()
|
|
qs = [o async for o in SimpleModel.objects.all()]
|
|
self.assertCountEqual(qs, [self.s1, self.s3])
|
|
|
|
@skipUnlessDBFeature("supports_explaining_query_execution")
|
|
@async_to_sync
|
|
async def test_aexplain(self):
|
|
supported_formats = await sync_to_async(self._get_db_feature)(
|
|
connection, "supported_explain_formats"
|
|
)
|
|
all_formats = (None, *supported_formats)
|
|
for format_ in all_formats:
|
|
with self.subTest(format=format_):
|
|
# TODO: Check the captured query when async versions of
|
|
# self.assertNumQueries/CaptureQueriesContext context
|
|
# processors are available.
|
|
result = await SimpleModel.objects.filter(field=1).aexplain(
|
|
format=format_
|
|
)
|
|
self.assertIsInstance(result, str)
|
|
self.assertTrue(result)
|
|
if not format_:
|
|
continue
|
|
if format_.lower() == "xml":
|
|
try:
|
|
xml.etree.ElementTree.fromstring(result)
|
|
except xml.etree.ElementTree.ParseError as e:
|
|
self.fail(f"QuerySet.aexplain() result is not valid XML: {e}")
|
|
elif format_.lower() == "json":
|
|
try:
|
|
json.loads(result)
|
|
except json.JSONDecodeError as e:
|
|
self.fail(f"QuerySet.aexplain() result is not valid JSON: {e}")
|
|
|
|
async def test_raw(self):
|
|
sql = "SELECT id, field FROM async_simplemodel WHERE created=%s"
|
|
qs = SimpleModel.objects.raw(sql, [self.s1.created])
|
|
self.assertEqual([o async for o in qs], [self.s1])
|