django/tests/servers/tests.py

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# -*- encoding: utf-8 -*-
"""
Tests for django.core.servers.
"""
from __future__ import unicode_literals
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import contextlib
import errno
import os
import socket
from django.core.exceptions import ImproperlyConfigured
from django.test import LiveServerTestCase, override_settings
from django.utils._os import upath
from django.utils.http import urlencode
from django.utils.six import text_type
from django.utils.six.moves.urllib.error import HTTPError
from django.utils.six.moves.urllib.request import urlopen
from .models import Person
TEST_ROOT = os.path.dirname(upath(__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):
"""
Ensure that the address set in the environment variable is valid.
Refs #2879.
"""
@classmethod
def setUpClass(cls):
# Backup original environment variable
address_predefined = 'DJANGO_LIVE_TEST_SERVER_ADDRESS' in os.environ
old_address = os.environ.get('DJANGO_LIVE_TEST_SERVER_ADDRESS')
# Just the host is not accepted
cls.raises_exception('localhost', ImproperlyConfigured)
# The host must be valid
cls.raises_exception('blahblahblah:8081', socket.error)
# The list of ports must be in a valid format
cls.raises_exception('localhost:8081,', ImproperlyConfigured)
cls.raises_exception('localhost:8081,blah', ImproperlyConfigured)
cls.raises_exception('localhost:8081-', ImproperlyConfigured)
cls.raises_exception('localhost:8081-blah', ImproperlyConfigured)
cls.raises_exception('localhost:8081-8082-8083', ImproperlyConfigured)
# Restore original environment variable
if address_predefined:
os.environ['DJANGO_LIVE_TEST_SERVER_ADDRESS'] = old_address
else:
del os.environ['DJANGO_LIVE_TEST_SERVER_ADDRESS']
# put it in a list to prevent descriptor lookups in test
cls.live_server_url_test = [cls.live_server_url]
@classmethod
def tearDownClass(cls):
# skip it, as setUpClass doesn't call its parent either
pass
@classmethod
def raises_exception(cls, address, exception):
os.environ['DJANGO_LIVE_TEST_SERVER_ADDRESS'] = address
try:
super(LiveServerAddress, cls).setUpClass()
raise Exception("The line above should have raised an exception")
except exception:
pass
finally:
super(LiveServerAddress, cls).tearDownClass()
def test_live_server_url_is_class_property(self):
self.assertIsInstance(self.live_server_url_test[0], text_type)
self.assertEqual(self.live_server_url_test[0], self.live_server_url)
class LiveServerViews(LiveServerBase):
def test_404(self):
"""
Ensure that the LiveServerTestCase serves 404s.
Refs #2879.
"""
try:
self.urlopen('/')
except HTTPError as err:
self.assertEqual(err.code, 404, 'Expected 404 response')
else:
self.fail('Expected 404 response')
def test_view(self):
"""
Ensure that the LiveServerTestCase serves views.
Refs #2879.
"""
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with contextlib.closing(self.urlopen('/example_view/')) as f:
self.assertEqual(f.read(), b'example view')
def test_static_files(self):
"""
Ensure that the LiveServerTestCase serves static files.
Refs #2879.
"""
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with contextlib.closing(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):
"""
Test that LiveServerTestCase reports a 404 status code when HTTP client
tries to access a static file that isn't explicitly put under
STATIC_ROOT.
"""
try:
self.urlopen('/static/another_app/another_app_static_file.txt')
except HTTPError as err:
self.assertEqual(err.code, 404, 'Expected 404 response')
else:
self.fail('Expected 404 response (got %d)' % err.code)
def test_media_files(self):
"""
Ensure that the LiveServerTestCase serves media files.
Refs #2879.
"""
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with contextlib.closing(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):
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with contextlib.closing(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())
class LiveServerDatabase(LiveServerBase):
def test_fixtures_loaded(self):
"""
Ensure that fixtures are properly loaded and visible to the
live server thread.
Refs #2879.
"""
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with contextlib.closing(self.urlopen('/model_view/')) as f:
self.assertEqual(f.read().splitlines(), [b'jane', b'robert'])
def test_database_writes(self):
"""
Ensure that data written to the database by a view can be read.
Refs #2879.
"""
self.urlopen('/create_model_instance/')
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(str("TestCase"), (LiveServerBase,), {})
try:
TestCase.setUpClass()
except socket.error as e:
if e.errno == errno.EADDRINUSE:
# We're out of ports, LiveServerTestCase correctly fails with
# a socket error.
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()