246 lines
11 KiB
Python
246 lines
11 KiB
Python
import asyncio
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import sys
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import threading
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from pathlib import Path
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from unittest import skipIf
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from asgiref.sync import SyncToAsync
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from asgiref.testing import ApplicationCommunicator
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from django.contrib.staticfiles.handlers import ASGIStaticFilesHandler
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from django.core.asgi import get_asgi_application
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from django.core.signals import request_finished, request_started
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from django.db import close_old_connections
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from django.test import (
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AsyncRequestFactory, SimpleTestCase, modify_settings, override_settings,
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)
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from django.utils.http import http_date
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from .urls import test_filename
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TEST_STATIC_ROOT = Path(__file__).parent / 'project' / 'static'
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@skipIf(sys.platform == 'win32' and (3, 8, 0) < sys.version_info < (3, 8, 1), 'https://bugs.python.org/issue38563')
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@override_settings(ROOT_URLCONF='asgi.urls')
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class ASGITest(SimpleTestCase):
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async_request_factory = AsyncRequestFactory()
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def setUp(self):
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request_started.disconnect(close_old_connections)
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def tearDown(self):
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request_started.connect(close_old_connections)
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async def test_get_asgi_application(self):
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"""
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get_asgi_application() returns a functioning ASGI callable.
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"""
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application = get_asgi_application()
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# Construct HTTP request.
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scope = self.async_request_factory._base_scope(path='/')
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communicator = ApplicationCommunicator(application, scope)
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await communicator.send_input({'type': 'http.request'})
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# Read the response.
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response_start = await communicator.receive_output()
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self.assertEqual(response_start['type'], 'http.response.start')
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self.assertEqual(response_start['status'], 200)
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self.assertEqual(
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set(response_start['headers']),
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{
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(b'Content-Length', b'12'),
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(b'Content-Type', b'text/html; charset=utf-8'),
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},
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)
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response_body = await communicator.receive_output()
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self.assertEqual(response_body['type'], 'http.response.body')
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self.assertEqual(response_body['body'], b'Hello World!')
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async def test_file_response(self):
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"""
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Makes sure that FileResponse works over ASGI.
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"""
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application = get_asgi_application()
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# Construct HTTP request.
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scope = self.async_request_factory._base_scope(path='/file/')
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communicator = ApplicationCommunicator(application, scope)
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await communicator.send_input({'type': 'http.request'})
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# Get the file content.
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with open(test_filename, 'rb') as test_file:
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test_file_contents = test_file.read()
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# Read the response.
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response_start = await communicator.receive_output()
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self.assertEqual(response_start['type'], 'http.response.start')
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self.assertEqual(response_start['status'], 200)
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headers = response_start['headers']
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self.assertEqual(len(headers), 3)
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expected_headers = {
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b'Content-Length': str(len(test_file_contents)).encode('ascii'),
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b'Content-Type': b'text/x-python',
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b'Content-Disposition': b'inline; filename="urls.py"',
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}
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for key, value in headers:
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try:
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self.assertEqual(value, expected_headers[key])
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except AssertionError:
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# Windows registry may not be configured with correct
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# mimetypes.
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if sys.platform == 'win32' and key == b'Content-Type':
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self.assertEqual(value, b'text/plain')
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else:
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raise
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response_body = await communicator.receive_output()
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self.assertEqual(response_body['type'], 'http.response.body')
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self.assertEqual(response_body['body'], test_file_contents)
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# Allow response.close() to finish.
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await communicator.wait()
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@modify_settings(INSTALLED_APPS={'append': 'django.contrib.staticfiles'})
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@override_settings(
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STATIC_URL='static/',
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STATIC_ROOT=TEST_STATIC_ROOT,
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STATICFILES_DIRS=[TEST_STATIC_ROOT],
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STATICFILES_FINDERS=[
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'django.contrib.staticfiles.finders.FileSystemFinder',
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],
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)
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async def test_static_file_response(self):
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application = ASGIStaticFilesHandler(get_asgi_application())
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# Construct HTTP request.
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scope = self.async_request_factory._base_scope(path='/static/file.txt')
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communicator = ApplicationCommunicator(application, scope)
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await communicator.send_input({'type': 'http.request'})
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# Get the file content.
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file_path = TEST_STATIC_ROOT / 'file.txt'
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with open(file_path, 'rb') as test_file:
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test_file_contents = test_file.read()
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# Read the response.
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stat = file_path.stat()
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response_start = await communicator.receive_output()
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self.assertEqual(response_start['type'], 'http.response.start')
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self.assertEqual(response_start['status'], 200)
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self.assertEqual(
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set(response_start['headers']),
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{
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(b'Content-Length', str(len(test_file_contents)).encode('ascii')),
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(b'Content-Type', b'text/plain'),
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(b'Content-Disposition', b'inline; filename="file.txt"'),
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(b'Last-Modified', http_date(stat.st_mtime).encode('ascii')),
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},
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)
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response_body = await communicator.receive_output()
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self.assertEqual(response_body['type'], 'http.response.body')
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self.assertEqual(response_body['body'], test_file_contents)
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# Allow response.close() to finish.
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await communicator.wait()
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async def test_headers(self):
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application = get_asgi_application()
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communicator = ApplicationCommunicator(
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application,
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self.async_request_factory._base_scope(
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path='/meta/',
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headers=[
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[b'content-type', b'text/plain; charset=utf-8'],
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[b'content-length', b'77'],
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[b'referer', b'Scotland'],
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[b'referer', b'Wales'],
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],
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),
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)
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await communicator.send_input({'type': 'http.request'})
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response_start = await communicator.receive_output()
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self.assertEqual(response_start['type'], 'http.response.start')
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self.assertEqual(response_start['status'], 200)
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self.assertEqual(
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set(response_start['headers']),
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{
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(b'Content-Length', b'19'),
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(b'Content-Type', b'text/plain; charset=utf-8'),
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},
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)
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response_body = await communicator.receive_output()
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self.assertEqual(response_body['type'], 'http.response.body')
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self.assertEqual(response_body['body'], b'From Scotland,Wales')
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async def test_get_query_string(self):
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application = get_asgi_application()
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for query_string in (b'name=Andrew', 'name=Andrew'):
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with self.subTest(query_string=query_string):
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scope = self.async_request_factory._base_scope(
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path='/',
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query_string=query_string,
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)
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communicator = ApplicationCommunicator(application, scope)
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await communicator.send_input({'type': 'http.request'})
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response_start = await communicator.receive_output()
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self.assertEqual(response_start['type'], 'http.response.start')
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self.assertEqual(response_start['status'], 200)
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response_body = await communicator.receive_output()
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self.assertEqual(response_body['type'], 'http.response.body')
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self.assertEqual(response_body['body'], b'Hello Andrew!')
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async def test_disconnect(self):
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application = get_asgi_application()
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scope = self.async_request_factory._base_scope(path='/')
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communicator = ApplicationCommunicator(application, scope)
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await communicator.send_input({'type': 'http.disconnect'})
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with self.assertRaises(asyncio.TimeoutError):
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await communicator.receive_output()
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async def test_wrong_connection_type(self):
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application = get_asgi_application()
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scope = self.async_request_factory._base_scope(path='/', type='other')
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communicator = ApplicationCommunicator(application, scope)
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await communicator.send_input({'type': 'http.request'})
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msg = 'Django can only handle ASGI/HTTP connections, not other.'
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with self.assertRaisesMessage(ValueError, msg):
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await communicator.receive_output()
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async def test_non_unicode_query_string(self):
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application = get_asgi_application()
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scope = self.async_request_factory._base_scope(path='/', query_string=b'\xff')
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communicator = ApplicationCommunicator(application, scope)
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await communicator.send_input({'type': 'http.request'})
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response_start = await communicator.receive_output()
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self.assertEqual(response_start['type'], 'http.response.start')
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self.assertEqual(response_start['status'], 400)
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response_body = await communicator.receive_output()
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self.assertEqual(response_body['type'], 'http.response.body')
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self.assertEqual(response_body['body'], b'')
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async def test_request_lifecycle_signals_dispatched_with_thread_sensitive(self):
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class SignalHandler:
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"""Track threads handler is dispatched on."""
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threads = []
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def __call__(self, **kwargs):
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self.threads.append(threading.current_thread())
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signal_handler = SignalHandler()
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request_started.connect(signal_handler)
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request_finished.connect(signal_handler)
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# Perform a basic request.
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application = get_asgi_application()
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scope = self.async_request_factory._base_scope(path='/')
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communicator = ApplicationCommunicator(application, scope)
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await communicator.send_input({'type': 'http.request'})
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response_start = await communicator.receive_output()
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self.assertEqual(response_start['type'], 'http.response.start')
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self.assertEqual(response_start['status'], 200)
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response_body = await communicator.receive_output()
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self.assertEqual(response_body['type'], 'http.response.body')
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self.assertEqual(response_body['body'], b'Hello World!')
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# Give response.close() time to finish.
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await communicator.wait()
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# At this point, AsyncToSync does not have a current executor. Thus
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# SyncToAsync falls-back to .single_thread_executor.
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target_thread = next(iter(SyncToAsync.single_thread_executor._threads))
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request_started_thread, request_finished_thread = signal_handler.threads
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self.assertEqual(request_started_thread, target_thread)
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self.assertEqual(request_finished_thread, target_thread)
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request_started.disconnect(signal_handler)
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request_finished.disconnect(signal_handler)
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