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a415ce70be
This adds an ASGI handler, asgi.py file for the default project layout, a few async utilities and adds async-safety to many parts of Django.
37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
from asgiref.sync import async_to_sync
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from django.core.exceptions import SynchronousOnlyOperation
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from django.test import SimpleTestCase
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from django.utils.asyncio import async_unsafe
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from .models import SimpleModel
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class DatabaseConnectionTest(SimpleTestCase):
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"""A database connection cannot be used in an async context."""
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@async_to_sync
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async def test_get_async_connection(self):
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with self.assertRaises(SynchronousOnlyOperation):
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list(SimpleModel.objects.all())
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class AsyncUnsafeTest(SimpleTestCase):
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"""
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async_unsafe decorator should work correctly and returns the correct
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message.
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"""
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@async_unsafe
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def dangerous_method(self):
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return True
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@async_to_sync
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async def test_async_unsafe(self):
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# async_unsafe decorator catches bad access and returns the right
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# message.
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msg = (
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'You cannot call this from an async context - use a thread or '
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'sync_to_async.'
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)
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with self.assertRaisesMessage(SynchronousOnlyOperation, msg):
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self.dangerous_method()
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