mirror of
https://github.com/django/django.git
synced 2024-12-29 12:36:08 +00:00
a9c6ab0356
Browsers often use multiple connections with Connection: keep-alive. If --nothreading is specified, the WSGI server cannot accept new connections until the old connection is closed, causing hangs. Force Connection: close when --nothreading option is used.
283 lines
11 KiB
Python
283 lines
11 KiB
Python
"""
|
|
Tests for django.core.servers.
|
|
"""
|
|
import errno
|
|
import os
|
|
import socket
|
|
from http.client import HTTPConnection
|
|
from urllib.error import HTTPError
|
|
from urllib.parse import urlencode
|
|
from urllib.request import urlopen
|
|
|
|
from django.core.servers.basehttp import WSGIServer
|
|
from django.test import LiveServerTestCase, override_settings
|
|
from django.test.testcases import LiveServerThread, QuietWSGIRequestHandler
|
|
|
|
from .models import Person
|
|
|
|
TEST_ROOT = os.path.dirname(__file__)
|
|
TEST_SETTINGS = {
|
|
'MEDIA_URL': '/media/',
|
|
'MEDIA_ROOT': os.path.join(TEST_ROOT, 'media'),
|
|
'STATIC_URL': '/static/',
|
|
'STATIC_ROOT': os.path.join(TEST_ROOT, 'static'),
|
|
}
|
|
|
|
|
|
@override_settings(ROOT_URLCONF='servers.urls', **TEST_SETTINGS)
|
|
class LiveServerBase(LiveServerTestCase):
|
|
|
|
available_apps = [
|
|
'servers',
|
|
'django.contrib.auth',
|
|
'django.contrib.contenttypes',
|
|
'django.contrib.sessions',
|
|
]
|
|
fixtures = ['testdata.json']
|
|
|
|
def urlopen(self, url):
|
|
return urlopen(self.live_server_url + url)
|
|
|
|
|
|
class LiveServerAddress(LiveServerBase):
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super().setUpClass()
|
|
# put it in a list to prevent descriptor lookups in test
|
|
cls.live_server_url_test = [cls.live_server_url]
|
|
|
|
def test_live_server_url_is_class_property(self):
|
|
self.assertIsInstance(self.live_server_url_test[0], str)
|
|
self.assertEqual(self.live_server_url_test[0], self.live_server_url)
|
|
|
|
|
|
class LiveServerSingleThread(LiveServerThread):
|
|
def _create_server(self):
|
|
return WSGIServer((self.host, self.port), QuietWSGIRequestHandler, allow_reuse_address=False)
|
|
|
|
|
|
class SingleThreadLiveServerTestCase(LiveServerTestCase):
|
|
server_thread_class = LiveServerSingleThread
|
|
|
|
|
|
class LiveServerViews(LiveServerBase):
|
|
def test_protocol(self):
|
|
"""Launched server serves with HTTP 1.1."""
|
|
with self.urlopen('/example_view/') as f:
|
|
self.assertEqual(f.version, 11)
|
|
|
|
def test_closes_connection_without_content_length(self):
|
|
"""
|
|
A HTTP 1.1 server is supposed to support keep-alive. Since our
|
|
development server is rather simple we support it only in cases where
|
|
we can detect a content length from the response. This should be doable
|
|
for all simple views and streaming responses where an iterable with
|
|
length of one is passed. The latter follows as result of `set_content_length`
|
|
from https://github.com/python/cpython/blob/master/Lib/wsgiref/handlers.py.
|
|
|
|
If we cannot detect a content length we explicitly set the `Connection`
|
|
header to `close` to notify the client that we do not actually support
|
|
it.
|
|
"""
|
|
conn = HTTPConnection(LiveServerViews.server_thread.host, LiveServerViews.server_thread.port, timeout=1)
|
|
try:
|
|
conn.request('GET', '/streaming_example_view/', headers={'Connection': 'keep-alive'})
|
|
response = conn.getresponse()
|
|
self.assertTrue(response.will_close)
|
|
self.assertEqual(response.read(), b'Iamastream')
|
|
self.assertEqual(response.status, 200)
|
|
self.assertEqual(response.getheader('Connection'), 'close')
|
|
|
|
conn.request('GET', '/streaming_example_view/', headers={'Connection': 'close'})
|
|
response = conn.getresponse()
|
|
self.assertTrue(response.will_close)
|
|
self.assertEqual(response.read(), b'Iamastream')
|
|
self.assertEqual(response.status, 200)
|
|
self.assertEqual(response.getheader('Connection'), 'close')
|
|
finally:
|
|
conn.close()
|
|
|
|
def test_keep_alive_on_connection_with_content_length(self):
|
|
"""
|
|
See `test_closes_connection_without_content_length` for details. This
|
|
is a follow up test, which ensure that we do not close the connection
|
|
if not needed, hence allowing us to take advantage of keep-alive.
|
|
"""
|
|
conn = HTTPConnection(LiveServerViews.server_thread.host, LiveServerViews.server_thread.port)
|
|
try:
|
|
conn.request('GET', '/example_view/', headers={"Connection": "keep-alive"})
|
|
response = conn.getresponse()
|
|
self.assertFalse(response.will_close)
|
|
self.assertEqual(response.read(), b'example view')
|
|
self.assertEqual(response.status, 200)
|
|
self.assertIsNone(response.getheader('Connection'))
|
|
|
|
conn.request('GET', '/example_view/', headers={"Connection": "close"})
|
|
response = conn.getresponse()
|
|
self.assertFalse(response.will_close)
|
|
self.assertEqual(response.read(), b'example view')
|
|
self.assertEqual(response.status, 200)
|
|
self.assertIsNone(response.getheader('Connection'))
|
|
finally:
|
|
conn.close()
|
|
|
|
def test_keep_alive_connection_clears_previous_request_data(self):
|
|
conn = HTTPConnection(LiveServerViews.server_thread.host, LiveServerViews.server_thread.port)
|
|
try:
|
|
conn.request('POST', '/method_view/', b'{}', headers={"Connection": "keep-alive"})
|
|
response = conn.getresponse()
|
|
self.assertFalse(response.will_close)
|
|
self.assertEqual(response.status, 200)
|
|
self.assertEqual(response.read(), b'POST')
|
|
|
|
conn.request('POST', '/method_view/', b'{}', headers={"Connection": "close"})
|
|
response = conn.getresponse()
|
|
self.assertFalse(response.will_close)
|
|
self.assertEqual(response.status, 200)
|
|
self.assertEqual(response.read(), b'POST')
|
|
finally:
|
|
conn.close()
|
|
|
|
def test_404(self):
|
|
with self.assertRaises(HTTPError) as err:
|
|
self.urlopen('/')
|
|
err.exception.close()
|
|
self.assertEqual(err.exception.code, 404, 'Expected 404 response')
|
|
|
|
def test_view(self):
|
|
with self.urlopen('/example_view/') as f:
|
|
self.assertEqual(f.read(), b'example view')
|
|
|
|
def test_static_files(self):
|
|
with self.urlopen('/static/example_static_file.txt') as f:
|
|
self.assertEqual(f.read().rstrip(b'\r\n'), b'example static file')
|
|
|
|
def test_no_collectstatic_emulation(self):
|
|
"""
|
|
LiveServerTestCase reports a 404 status code when HTTP client
|
|
tries to access a static file that isn't explicitly put under
|
|
STATIC_ROOT.
|
|
"""
|
|
with self.assertRaises(HTTPError) as err:
|
|
self.urlopen('/static/another_app/another_app_static_file.txt')
|
|
err.exception.close()
|
|
self.assertEqual(err.exception.code, 404, 'Expected 404 response')
|
|
|
|
def test_media_files(self):
|
|
with self.urlopen('/media/example_media_file.txt') as f:
|
|
self.assertEqual(f.read().rstrip(b'\r\n'), b'example media file')
|
|
|
|
def test_environ(self):
|
|
with self.urlopen('/environ_view/?%s' % urlencode({'q': 'тест'})) as f:
|
|
self.assertIn(b"QUERY_STRING: 'q=%D1%82%D0%B5%D1%81%D1%82'", f.read())
|
|
|
|
|
|
@override_settings(ROOT_URLCONF='servers.urls')
|
|
class SingleTreadLiveServerViews(SingleThreadLiveServerTestCase):
|
|
available_apps = ['servers']
|
|
|
|
def test_closes_connection_with_content_length(self):
|
|
"""
|
|
Contrast to
|
|
LiveServerViews.test_keep_alive_on_connection_with_content_length().
|
|
Persistent connections require threading server.
|
|
"""
|
|
conn = HTTPConnection(
|
|
SingleTreadLiveServerViews.server_thread.host,
|
|
SingleTreadLiveServerViews.server_thread.port,
|
|
timeout=1,
|
|
)
|
|
try:
|
|
conn.request('GET', '/example_view/', headers={'Connection': 'keep-alive'})
|
|
response = conn.getresponse()
|
|
self.assertTrue(response.will_close)
|
|
self.assertEqual(response.read(), b'example view')
|
|
self.assertEqual(response.status, 200)
|
|
self.assertEqual(response.getheader('Connection'), 'close')
|
|
finally:
|
|
conn.close()
|
|
|
|
|
|
class LiveServerDatabase(LiveServerBase):
|
|
|
|
def test_fixtures_loaded(self):
|
|
"""
|
|
Fixtures are properly loaded and visible to the live server thread.
|
|
"""
|
|
with self.urlopen('/model_view/') as f:
|
|
self.assertEqual(f.read().splitlines(), [b'jane', b'robert'])
|
|
|
|
def test_database_writes(self):
|
|
"""
|
|
Data written to the database by a view can be read.
|
|
"""
|
|
with self.urlopen('/create_model_instance/'):
|
|
pass
|
|
self.assertQuerysetEqual(
|
|
Person.objects.all().order_by('pk'),
|
|
['jane', 'robert', 'emily'],
|
|
lambda b: b.name
|
|
)
|
|
|
|
|
|
class LiveServerPort(LiveServerBase):
|
|
|
|
def test_port_bind(self):
|
|
"""
|
|
Each LiveServerTestCase binds to a unique port or fails to start a
|
|
server thread when run concurrently (#26011).
|
|
"""
|
|
TestCase = type("TestCase", (LiveServerBase,), {})
|
|
try:
|
|
TestCase.setUpClass()
|
|
except OSError as e:
|
|
if e.errno == errno.EADDRINUSE:
|
|
# We're out of ports, LiveServerTestCase correctly fails with
|
|
# an OSError.
|
|
return
|
|
# Unexpected error.
|
|
raise
|
|
try:
|
|
# We've acquired a port, ensure our server threads acquired
|
|
# different addresses.
|
|
self.assertNotEqual(
|
|
self.live_server_url, TestCase.live_server_url,
|
|
"Acquired duplicate server addresses for server threads: %s" % self.live_server_url
|
|
)
|
|
finally:
|
|
TestCase.tearDownClass()
|
|
|
|
def test_specified_port_bind(self):
|
|
"""LiveServerTestCase.port customizes the server's port."""
|
|
TestCase = type(str('TestCase'), (LiveServerBase,), {})
|
|
# Find an open port and tell TestCase to use it.
|
|
s = socket.socket()
|
|
s.bind(('', 0))
|
|
TestCase.port = s.getsockname()[1]
|
|
s.close()
|
|
TestCase.setUpClass()
|
|
try:
|
|
self.assertEqual(
|
|
TestCase.port, TestCase.server_thread.port,
|
|
'Did not use specified port for LiveServerTestCase thread: %s' % TestCase.port
|
|
)
|
|
finally:
|
|
TestCase.tearDownClass()
|
|
|
|
|
|
class LiverServerThreadedTests(LiveServerBase):
|
|
"""If LiverServerTestCase isn't threaded, these tests will hang."""
|
|
|
|
def test_view_calls_subview(self):
|
|
url = '/subview_calling_view/?%s' % urlencode({'url': self.live_server_url})
|
|
with self.urlopen(url) as f:
|
|
self.assertEqual(f.read(), b'subview calling view: subview')
|
|
|
|
def test_check_model_instance_from_subview(self):
|
|
url = '/check_model_instance_from_subview/?%s' % urlencode({
|
|
'url': self.live_server_url,
|
|
})
|
|
with self.urlopen(url) as f:
|
|
self.assertIn(b'emily', f.read())
|