1280 lines
52 KiB
Python
1280 lines
52 KiB
Python
from __future__ import unicode_literals
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from collections import Counter
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from copy import copy
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import difflib
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import errno
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from functools import wraps
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import json
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import os
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import posixpath
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import re
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import socket
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import sys
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import threading
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import unittest
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import warnings
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from unittest import skipIf # NOQA: Imported here for backward compatibility
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from unittest.util import safe_repr
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from django.apps import apps
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from django.conf import settings
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from django.core import mail
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from django.core.exceptions import ValidationError, ImproperlyConfigured
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from django.core.handlers.wsgi import get_path_info, WSGIHandler
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from django.core.management import call_command
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from django.core.management.color import no_style
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from django.core.management.commands import flush
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from django.core.servers.basehttp import WSGIRequestHandler, WSGIServer
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from django.core.urlresolvers import clear_url_caches, set_urlconf
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from django.db import connection, connections, DEFAULT_DB_ALIAS, transaction
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from django.forms.fields import CharField
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from django.http import QueryDict
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from django.test.client import Client
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from django.test.html import HTMLParseError, parse_html
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from django.test.signals import setting_changed, template_rendered
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from django.test.utils import (CaptureQueriesContext, ContextList,
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override_settings, modify_settings, compare_xml)
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from django.utils.deprecation import RemovedInDjango20Warning
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from django.utils.encoding import force_text
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from django.utils import six
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from django.utils.six.moves.urllib.parse import urlsplit, urlunsplit, urlparse, unquote
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from django.utils.six.moves.urllib.request import url2pathname
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from django.views.static import serve
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__all__ = ('TestCase', 'TransactionTestCase',
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'SimpleTestCase', 'skipIfDBFeature', 'skipUnlessDBFeature')
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def to_list(value):
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"""
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Puts value into a list if it's not already one.
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Returns an empty list if value is None.
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"""
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if value is None:
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value = []
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elif not isinstance(value, list):
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value = [value]
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return value
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def assert_and_parse_html(self, html, user_msg, msg):
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try:
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dom = parse_html(html)
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except HTMLParseError as e:
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standardMsg = '%s\n%s' % (msg, e.msg)
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self.fail(self._formatMessage(user_msg, standardMsg))
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return dom
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class _AssertNumQueriesContext(CaptureQueriesContext):
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def __init__(self, test_case, num, connection):
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self.test_case = test_case
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self.num = num
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super(_AssertNumQueriesContext, self).__init__(connection)
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def __exit__(self, exc_type, exc_value, traceback):
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super(_AssertNumQueriesContext, self).__exit__(exc_type, exc_value, traceback)
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if exc_type is not None:
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return
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executed = len(self)
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self.test_case.assertEqual(
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executed, self.num,
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"%d queries executed, %d expected\nCaptured queries were:\n%s" % (
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executed, self.num,
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'\n'.join(
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query['sql'] for query in self.captured_queries
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)
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)
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)
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class _AssertTemplateUsedContext(object):
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def __init__(self, test_case, template_name):
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self.test_case = test_case
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self.template_name = template_name
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self.rendered_templates = []
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self.rendered_template_names = []
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self.context = ContextList()
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def on_template_render(self, sender, signal, template, context, **kwargs):
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self.rendered_templates.append(template)
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self.rendered_template_names.append(template.name)
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self.context.append(copy(context))
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def test(self):
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return self.template_name in self.rendered_template_names
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def message(self):
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return '%s was not rendered.' % self.template_name
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def __enter__(self):
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template_rendered.connect(self.on_template_render)
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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template_rendered.disconnect(self.on_template_render)
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if exc_type is not None:
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return
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if not self.test():
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message = self.message()
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if len(self.rendered_templates) == 0:
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message += ' No template was rendered.'
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else:
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message += ' Following templates were rendered: %s' % (
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', '.join(self.rendered_template_names))
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self.test_case.fail(message)
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class _AssertTemplateNotUsedContext(_AssertTemplateUsedContext):
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def test(self):
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return self.template_name not in self.rendered_template_names
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def message(self):
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return '%s was rendered.' % self.template_name
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class SimpleTestCase(unittest.TestCase):
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# The class we'll use for the test client self.client.
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# Can be overridden in derived classes.
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client_class = Client
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_overridden_settings = None
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_modified_settings = None
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@classmethod
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def setUpClass(cls):
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if cls._overridden_settings:
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cls._cls_overridden_context = override_settings(**cls._overridden_settings)
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cls._cls_overridden_context.enable()
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if cls._modified_settings:
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cls._cls_modified_context = modify_settings(cls._modified_settings)
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cls._cls_modified_context.enable()
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@classmethod
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def tearDownClass(cls):
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if hasattr(cls, '_cls_modified_context'):
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cls._cls_modified_context.disable()
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delattr(cls, '_cls_modified_context')
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if hasattr(cls, '_cls_overridden_context'):
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cls._cls_overridden_context.disable()
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delattr(cls, '_cls_overridden_context')
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def __call__(self, result=None):
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"""
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Wrapper around default __call__ method to perform common Django test
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set up. This means that user-defined Test Cases aren't required to
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include a call to super().setUp().
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"""
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testMethod = getattr(self, self._testMethodName)
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skipped = (getattr(self.__class__, "__unittest_skip__", False) or
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getattr(testMethod, "__unittest_skip__", False))
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if not skipped:
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try:
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self._pre_setup()
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except Exception:
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result.addError(self, sys.exc_info())
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return
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super(SimpleTestCase, self).__call__(result)
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if not skipped:
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try:
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self._post_teardown()
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except Exception:
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result.addError(self, sys.exc_info())
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return
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def _pre_setup(self):
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"""Performs any pre-test setup. This includes:
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* Creating a test client.
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* If the class has a 'urls' attribute, replace ROOT_URLCONF with it.
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* Clearing the mail test outbox.
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"""
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self.client = self.client_class()
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self._urlconf_setup()
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mail.outbox = []
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def _urlconf_setup(self):
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if hasattr(self, 'urls'):
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warnings.warn(
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"SimpleTestCase.urls is deprecated and will be removed in "
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"Django 2.0. Use @override_settings(ROOT_URLCONF=...) "
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"in %s instead." % self.__class__.__name__,
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RemovedInDjango20Warning, stacklevel=2)
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set_urlconf(None)
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self._old_root_urlconf = settings.ROOT_URLCONF
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settings.ROOT_URLCONF = self.urls
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clear_url_caches()
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def _post_teardown(self):
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"""Performs any post-test things. This includes:
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* Putting back the original ROOT_URLCONF if it was changed.
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"""
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self._urlconf_teardown()
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def _urlconf_teardown(self):
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if hasattr(self, '_old_root_urlconf'):
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set_urlconf(None)
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settings.ROOT_URLCONF = self._old_root_urlconf
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clear_url_caches()
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def settings(self, **kwargs):
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"""
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A context manager that temporarily sets a setting and reverts to the original value when exiting the context.
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"""
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return override_settings(**kwargs)
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def modify_settings(self, **kwargs):
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"""
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A context manager that temporarily applies changes a list setting and
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reverts back to the original value when exiting the context.
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"""
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return modify_settings(**kwargs)
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def assertRedirects(self, response, expected_url, status_code=302,
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target_status_code=200, host=None, msg_prefix='',
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fetch_redirect_response=True):
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"""Asserts that a response redirected to a specific URL, and that the
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redirect URL can be loaded.
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Note that assertRedirects won't work for external links since it uses
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TestClient to do a request (use fetch_redirect_response=False to check
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such links without fetching them).
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"""
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if msg_prefix:
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msg_prefix += ": "
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e_scheme, e_netloc, e_path, e_query, e_fragment = urlsplit(expected_url)
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if hasattr(response, 'redirect_chain'):
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# The request was a followed redirect
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self.assertTrue(len(response.redirect_chain) > 0,
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msg_prefix + "Response didn't redirect as expected: Response"
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" code was %d (expected %d)" %
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(response.status_code, status_code))
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self.assertEqual(response.redirect_chain[0][1], status_code,
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msg_prefix + "Initial response didn't redirect as expected:"
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" Response code was %d (expected %d)" %
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(response.redirect_chain[0][1], status_code))
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url, status_code = response.redirect_chain[-1]
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scheme, netloc, path, query, fragment = urlsplit(url)
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self.assertEqual(response.status_code, target_status_code,
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msg_prefix + "Response didn't redirect as expected: Final"
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" Response code was %d (expected %d)" %
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(response.status_code, target_status_code))
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else:
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# Not a followed redirect
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self.assertEqual(response.status_code, status_code,
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msg_prefix + "Response didn't redirect as expected: Response"
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" code was %d (expected %d)" %
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(response.status_code, status_code))
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url = response.url
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scheme, netloc, path, query, fragment = urlsplit(url)
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if fetch_redirect_response:
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redirect_response = response.client.get(path, QueryDict(query),
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secure=(scheme == 'https'))
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# Get the redirection page, using the same client that was used
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# to obtain the original response.
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self.assertEqual(redirect_response.status_code, target_status_code,
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msg_prefix + "Couldn't retrieve redirection page '%s':"
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" response code was %d (expected %d)" %
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(path, redirect_response.status_code, target_status_code))
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e_scheme = e_scheme if e_scheme else scheme or 'http'
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e_netloc = e_netloc if e_netloc else host or 'testserver'
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expected_url = urlunsplit((e_scheme, e_netloc, e_path, e_query,
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e_fragment))
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self.assertEqual(url, expected_url,
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msg_prefix + "Response redirected to '%s', expected '%s'" %
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(url, expected_url))
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def _assert_contains(self, response, text, status_code, msg_prefix, html):
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# If the response supports deferred rendering and hasn't been rendered
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# yet, then ensure that it does get rendered before proceeding further.
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if (hasattr(response, 'render') and callable(response.render)
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and not response.is_rendered):
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response.render()
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if msg_prefix:
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msg_prefix += ": "
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self.assertEqual(response.status_code, status_code,
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msg_prefix + "Couldn't retrieve content: Response code was %d"
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" (expected %d)" % (response.status_code, status_code))
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if response.streaming:
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content = b''.join(response.streaming_content)
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else:
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content = response.content
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if not isinstance(text, bytes) or html:
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text = force_text(text, encoding=response.charset)
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content = content.decode(response.charset)
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text_repr = "'%s'" % text
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else:
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text_repr = repr(text)
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if html:
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content = assert_and_parse_html(self, content, None,
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"Response's content is not valid HTML:")
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text = assert_and_parse_html(self, text, None,
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"Second argument is not valid HTML:")
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real_count = content.count(text)
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return (text_repr, real_count, msg_prefix)
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def assertContains(self, response, text, count=None, status_code=200,
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msg_prefix='', html=False):
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"""
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Asserts that a response indicates that some content was retrieved
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successfully, (i.e., the HTTP status code was as expected), and that
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``text`` occurs ``count`` times in the content of the response.
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If ``count`` is None, the count doesn't matter - the assertion is true
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if the text occurs at least once in the response.
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"""
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text_repr, real_count, msg_prefix = self._assert_contains(
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response, text, status_code, msg_prefix, html)
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if count is not None:
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self.assertEqual(real_count, count,
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msg_prefix + "Found %d instances of %s in response"
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" (expected %d)" % (real_count, text_repr, count))
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else:
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self.assertTrue(real_count != 0,
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msg_prefix + "Couldn't find %s in response" % text_repr)
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def assertNotContains(self, response, text, status_code=200,
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msg_prefix='', html=False):
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"""
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Asserts that a response indicates that some content was retrieved
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successfully, (i.e., the HTTP status code was as expected), and that
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``text`` doesn't occurs in the content of the response.
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"""
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text_repr, real_count, msg_prefix = self._assert_contains(
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response, text, status_code, msg_prefix, html)
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self.assertEqual(real_count, 0,
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msg_prefix + "Response should not contain %s" % text_repr)
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def assertFormError(self, response, form, field, errors, msg_prefix=''):
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"""
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Asserts that a form used to render the response has a specific field
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error.
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"""
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if msg_prefix:
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msg_prefix += ": "
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|
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# Put context(s) into a list to simplify processing.
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contexts = to_list(response.context)
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if not contexts:
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self.fail(msg_prefix + "Response did not use any contexts to "
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"render the response")
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# Put error(s) into a list to simplify processing.
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errors = to_list(errors)
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|
|
|
# Search all contexts for the error.
|
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found_form = False
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for i, context in enumerate(contexts):
|
|
if form not in context:
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continue
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found_form = True
|
|
for err in errors:
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if field:
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if field in context[form].errors:
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field_errors = context[form].errors[field]
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self.assertTrue(err in field_errors,
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msg_prefix + "The field '%s' on form '%s' in"
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" context %d does not contain the error '%s'"
|
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" (actual errors: %s)" %
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(field, form, i, err, repr(field_errors)))
|
|
elif field in context[form].fields:
|
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self.fail(msg_prefix + "The field '%s' on form '%s'"
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" in context %d contains no errors" %
|
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(field, form, i))
|
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else:
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self.fail(msg_prefix + "The form '%s' in context %d"
|
|
" does not contain the field '%s'" %
|
|
(form, i, field))
|
|
else:
|
|
non_field_errors = context[form].non_field_errors()
|
|
self.assertTrue(err in non_field_errors,
|
|
msg_prefix + "The form '%s' in context %d does not"
|
|
" contain the non-field error '%s'"
|
|
" (actual errors: %s)" %
|
|
(form, i, err, non_field_errors))
|
|
if not found_form:
|
|
self.fail(msg_prefix + "The form '%s' was not used to render the"
|
|
" response" % form)
|
|
|
|
def assertFormsetError(self, response, formset, form_index, field, errors,
|
|
msg_prefix=''):
|
|
"""
|
|
Asserts that a formset used to render the response has a specific error.
|
|
|
|
For field errors, specify the ``form_index`` and the ``field``.
|
|
For non-field errors, specify the ``form_index`` and the ``field`` as
|
|
None.
|
|
For non-form errors, specify ``form_index`` as None and the ``field``
|
|
as None.
|
|
"""
|
|
# Add punctuation to msg_prefix
|
|
if msg_prefix:
|
|
msg_prefix += ": "
|
|
|
|
# Put context(s) into a list to simplify processing.
|
|
contexts = to_list(response.context)
|
|
if not contexts:
|
|
self.fail(msg_prefix + 'Response did not use any contexts to '
|
|
'render the response')
|
|
|
|
# Put error(s) into a list to simplify processing.
|
|
errors = to_list(errors)
|
|
|
|
# Search all contexts for the error.
|
|
found_formset = False
|
|
for i, context in enumerate(contexts):
|
|
if formset not in context:
|
|
continue
|
|
found_formset = True
|
|
for err in errors:
|
|
if field is not None:
|
|
if field in context[formset].forms[form_index].errors:
|
|
field_errors = context[formset].forms[form_index].errors[field]
|
|
self.assertTrue(err in field_errors,
|
|
msg_prefix + "The field '%s' on formset '%s', "
|
|
"form %d in context %d does not contain the "
|
|
"error '%s' (actual errors: %s)" %
|
|
(field, formset, form_index, i, err,
|
|
repr(field_errors)))
|
|
elif field in context[formset].forms[form_index].fields:
|
|
self.fail(msg_prefix + "The field '%s' "
|
|
"on formset '%s', form %d in "
|
|
"context %d contains no errors" %
|
|
(field, formset, form_index, i))
|
|
else:
|
|
self.fail(msg_prefix + "The formset '%s', form %d in "
|
|
"context %d does not contain the field '%s'" %
|
|
(formset, form_index, i, field))
|
|
elif form_index is not None:
|
|
non_field_errors = context[formset].forms[form_index].non_field_errors()
|
|
self.assertFalse(len(non_field_errors) == 0,
|
|
msg_prefix + "The formset '%s', form %d in "
|
|
"context %d does not contain any non-field "
|
|
"errors." % (formset, form_index, i))
|
|
self.assertTrue(err in non_field_errors,
|
|
msg_prefix + "The formset '%s', form %d "
|
|
"in context %d does not contain the "
|
|
"non-field error '%s' "
|
|
"(actual errors: %s)" %
|
|
(formset, form_index, i, err,
|
|
repr(non_field_errors)))
|
|
else:
|
|
non_form_errors = context[formset].non_form_errors()
|
|
self.assertFalse(len(non_form_errors) == 0,
|
|
msg_prefix + "The formset '%s' in "
|
|
"context %d does not contain any "
|
|
"non-form errors." % (formset, i))
|
|
self.assertTrue(err in non_form_errors,
|
|
msg_prefix + "The formset '%s' in context "
|
|
"%d does not contain the "
|
|
"non-form error '%s' (actual errors: %s)" %
|
|
(formset, i, err, repr(non_form_errors)))
|
|
if not found_formset:
|
|
self.fail(msg_prefix + "The formset '%s' was not used to render "
|
|
"the response" % formset)
|
|
|
|
def _assert_template_used(self, response, template_name, msg_prefix):
|
|
|
|
if response is None and template_name is None:
|
|
raise TypeError('response and/or template_name argument must be provided')
|
|
|
|
if msg_prefix:
|
|
msg_prefix += ": "
|
|
|
|
if template_name is not None and response is not None and not hasattr(response, 'templates'):
|
|
raise ValueError(
|
|
"assertTemplateUsed() and assertTemplateNotUsed() are only "
|
|
"usable on responses fetched using the Django test Client."
|
|
)
|
|
|
|
if not hasattr(response, 'templates') or (response is None and template_name):
|
|
if response:
|
|
template_name = response
|
|
response = None
|
|
# use this template with context manager
|
|
return template_name, None, msg_prefix
|
|
|
|
template_names = [t.name for t in response.templates if t.name is not
|
|
None]
|
|
return None, template_names, msg_prefix
|
|
|
|
def assertTemplateUsed(self, response=None, template_name=None, msg_prefix='', count=None):
|
|
"""
|
|
Asserts that the template with the provided name was used in rendering
|
|
the response. Also usable as context manager.
|
|
"""
|
|
context_mgr_template, template_names, msg_prefix = self._assert_template_used(
|
|
response, template_name, msg_prefix)
|
|
|
|
if context_mgr_template:
|
|
# Use assertTemplateUsed as context manager.
|
|
return _AssertTemplateUsedContext(self, context_mgr_template)
|
|
|
|
if not template_names:
|
|
self.fail(msg_prefix + "No templates used to render the response")
|
|
self.assertTrue(template_name in template_names,
|
|
msg_prefix + "Template '%s' was not a template used to render"
|
|
" the response. Actual template(s) used: %s" %
|
|
(template_name, ', '.join(template_names)))
|
|
|
|
if count is not None:
|
|
self.assertEqual(template_names.count(template_name), count,
|
|
msg_prefix + "Template '%s' was expected to be rendered %d "
|
|
"time(s) but was actually rendered %d time(s)." %
|
|
(template_name, count, template_names.count(template_name)))
|
|
|
|
def assertTemplateNotUsed(self, response=None, template_name=None, msg_prefix=''):
|
|
"""
|
|
Asserts that the template with the provided name was NOT used in
|
|
rendering the response. Also usable as context manager.
|
|
"""
|
|
|
|
context_mgr_template, template_names, msg_prefix = self._assert_template_used(
|
|
response, template_name, msg_prefix)
|
|
|
|
if context_mgr_template:
|
|
# Use assertTemplateNotUsed as context manager.
|
|
return _AssertTemplateNotUsedContext(self, context_mgr_template)
|
|
|
|
self.assertFalse(template_name in template_names,
|
|
msg_prefix + "Template '%s' was used unexpectedly in rendering"
|
|
" the response" % template_name)
|
|
|
|
def assertRaisesMessage(self, expected_exception, expected_message,
|
|
callable_obj=None, *args, **kwargs):
|
|
"""
|
|
Asserts that the message in a raised exception matches the passed
|
|
value.
|
|
|
|
Args:
|
|
expected_exception: Exception class expected to be raised.
|
|
expected_message: expected error message string value.
|
|
callable_obj: Function to be called.
|
|
args: Extra args.
|
|
kwargs: Extra kwargs.
|
|
"""
|
|
return six.assertRaisesRegex(self, expected_exception,
|
|
re.escape(expected_message), callable_obj, *args, **kwargs)
|
|
|
|
def assertFieldOutput(self, fieldclass, valid, invalid, field_args=None,
|
|
field_kwargs=None, empty_value=''):
|
|
"""
|
|
Asserts that a form field behaves correctly with various inputs.
|
|
|
|
Args:
|
|
fieldclass: the class of the field to be tested.
|
|
valid: a dictionary mapping valid inputs to their expected
|
|
cleaned values.
|
|
invalid: a dictionary mapping invalid inputs to one or more
|
|
raised error messages.
|
|
field_args: the args passed to instantiate the field
|
|
field_kwargs: the kwargs passed to instantiate the field
|
|
empty_value: the expected clean output for inputs in empty_values
|
|
|
|
"""
|
|
if field_args is None:
|
|
field_args = []
|
|
if field_kwargs is None:
|
|
field_kwargs = {}
|
|
required = fieldclass(*field_args, **field_kwargs)
|
|
optional = fieldclass(*field_args,
|
|
**dict(field_kwargs, required=False))
|
|
# test valid inputs
|
|
for input, output in valid.items():
|
|
self.assertEqual(required.clean(input), output)
|
|
self.assertEqual(optional.clean(input), output)
|
|
# test invalid inputs
|
|
for input, errors in invalid.items():
|
|
with self.assertRaises(ValidationError) as context_manager:
|
|
required.clean(input)
|
|
self.assertEqual(context_manager.exception.messages, errors)
|
|
|
|
with self.assertRaises(ValidationError) as context_manager:
|
|
optional.clean(input)
|
|
self.assertEqual(context_manager.exception.messages, errors)
|
|
# test required inputs
|
|
error_required = [force_text(required.error_messages['required'])]
|
|
for e in required.empty_values:
|
|
with self.assertRaises(ValidationError) as context_manager:
|
|
required.clean(e)
|
|
self.assertEqual(context_manager.exception.messages,
|
|
error_required)
|
|
self.assertEqual(optional.clean(e), empty_value)
|
|
# test that max_length and min_length are always accepted
|
|
if issubclass(fieldclass, CharField):
|
|
field_kwargs.update({'min_length': 2, 'max_length': 20})
|
|
self.assertIsInstance(fieldclass(*field_args, **field_kwargs),
|
|
fieldclass)
|
|
|
|
def assertHTMLEqual(self, html1, html2, msg=None):
|
|
"""
|
|
Asserts that two HTML snippets are semantically the same.
|
|
Whitespace in most cases is ignored, and attribute ordering is not
|
|
significant. The passed-in arguments must be valid HTML.
|
|
"""
|
|
dom1 = assert_and_parse_html(self, html1, msg,
|
|
'First argument is not valid HTML:')
|
|
dom2 = assert_and_parse_html(self, html2, msg,
|
|
'Second argument is not valid HTML:')
|
|
|
|
if dom1 != dom2:
|
|
standardMsg = '%s != %s' % (
|
|
safe_repr(dom1, True), safe_repr(dom2, True))
|
|
diff = ('\n' + '\n'.join(difflib.ndiff(
|
|
six.text_type(dom1).splitlines(),
|
|
six.text_type(dom2).splitlines())))
|
|
standardMsg = self._truncateMessage(standardMsg, diff)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertHTMLNotEqual(self, html1, html2, msg=None):
|
|
"""Asserts that two HTML snippets are not semantically equivalent."""
|
|
dom1 = assert_and_parse_html(self, html1, msg,
|
|
'First argument is not valid HTML:')
|
|
dom2 = assert_and_parse_html(self, html2, msg,
|
|
'Second argument is not valid HTML:')
|
|
|
|
if dom1 == dom2:
|
|
standardMsg = '%s == %s' % (
|
|
safe_repr(dom1, True), safe_repr(dom2, True))
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertInHTML(self, needle, haystack, count=None, msg_prefix=''):
|
|
needle = assert_and_parse_html(self, needle, None,
|
|
'First argument is not valid HTML:')
|
|
haystack = assert_and_parse_html(self, haystack, None,
|
|
'Second argument is not valid HTML:')
|
|
real_count = haystack.count(needle)
|
|
if count is not None:
|
|
self.assertEqual(real_count, count,
|
|
msg_prefix + "Found %d instances of '%s' in response"
|
|
" (expected %d)" % (real_count, needle, count))
|
|
else:
|
|
self.assertTrue(real_count != 0,
|
|
msg_prefix + "Couldn't find '%s' in response" % needle)
|
|
|
|
def assertJSONEqual(self, raw, expected_data, msg=None):
|
|
"""
|
|
Asserts that the JSON fragments raw and expected_data are equal.
|
|
Usual JSON non-significant whitespace rules apply as the heavyweight
|
|
is delegated to the json library.
|
|
"""
|
|
try:
|
|
data = json.loads(raw)
|
|
except ValueError:
|
|
self.fail("First argument is not valid JSON: %r" % raw)
|
|
if isinstance(expected_data, six.string_types):
|
|
try:
|
|
expected_data = json.loads(expected_data)
|
|
except ValueError:
|
|
self.fail("Second argument is not valid JSON: %r" % expected_data)
|
|
self.assertEqual(data, expected_data, msg=msg)
|
|
|
|
def assertJSONNotEqual(self, raw, expected_data, msg=None):
|
|
"""
|
|
Asserts that the JSON fragments raw and expected_data are not equal.
|
|
Usual JSON non-significant whitespace rules apply as the heavyweight
|
|
is delegated to the json library.
|
|
"""
|
|
try:
|
|
data = json.loads(raw)
|
|
except ValueError:
|
|
self.fail("First argument is not valid JSON: %r" % raw)
|
|
if isinstance(expected_data, six.string_types):
|
|
try:
|
|
expected_data = json.loads(expected_data)
|
|
except ValueError:
|
|
self.fail("Second argument is not valid JSON: %r" % expected_data)
|
|
self.assertNotEqual(data, expected_data, msg=msg)
|
|
|
|
def assertXMLEqual(self, xml1, xml2, msg=None):
|
|
"""
|
|
Asserts that two XML snippets are semantically the same.
|
|
Whitespace in most cases is ignored, and attribute ordering is not
|
|
significant. The passed-in arguments must be valid XML.
|
|
"""
|
|
try:
|
|
result = compare_xml(xml1, xml2)
|
|
except Exception as e:
|
|
standardMsg = 'First or second argument is not valid XML\n%s' % e
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
else:
|
|
if not result:
|
|
standardMsg = '%s != %s' % (safe_repr(xml1, True), safe_repr(xml2, True))
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertXMLNotEqual(self, xml1, xml2, msg=None):
|
|
"""
|
|
Asserts that two XML snippets are not semantically equivalent.
|
|
Whitespace in most cases is ignored, and attribute ordering is not
|
|
significant. The passed-in arguments must be valid XML.
|
|
"""
|
|
try:
|
|
result = compare_xml(xml1, xml2)
|
|
except Exception as e:
|
|
standardMsg = 'First or second argument is not valid XML\n%s' % e
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
else:
|
|
if result:
|
|
standardMsg = '%s == %s' % (safe_repr(xml1, True), safe_repr(xml2, True))
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
|
|
class TransactionTestCase(SimpleTestCase):
|
|
|
|
# Subclasses can ask for resetting of auto increment sequence before each
|
|
# test case
|
|
reset_sequences = False
|
|
|
|
# Subclasses can enable only a subset of apps for faster tests
|
|
available_apps = None
|
|
|
|
# Subclasses can define fixtures which will be automatically installed.
|
|
fixtures = None
|
|
|
|
# If transactions aren't available, Django will serialize the database
|
|
# contents into a fixture during setup and flush and reload them
|
|
# during teardown (as flush does not restore data from migrations).
|
|
# This can be slow; this flag allows enabling on a per-case basis.
|
|
serialized_rollback = False
|
|
|
|
def _pre_setup(self):
|
|
"""Performs any pre-test setup. This includes:
|
|
|
|
* If the class has an 'available_apps' attribute, restricting the app
|
|
registry to these applications, then firing post_migrate -- it must
|
|
run with the correct set of applications for the test case.
|
|
* If the class has a 'fixtures' attribute, installing these fixtures.
|
|
"""
|
|
super(TransactionTestCase, self)._pre_setup()
|
|
if self.available_apps is not None:
|
|
apps.set_available_apps(self.available_apps)
|
|
setting_changed.send(sender=settings._wrapped.__class__,
|
|
setting='INSTALLED_APPS',
|
|
value=self.available_apps,
|
|
enter=True)
|
|
for db_name in self._databases_names(include_mirrors=False):
|
|
flush.Command.emit_post_migrate(verbosity=0, interactive=False, database=db_name)
|
|
try:
|
|
self._fixture_setup()
|
|
except Exception:
|
|
if self.available_apps is not None:
|
|
apps.unset_available_apps()
|
|
setting_changed.send(sender=settings._wrapped.__class__,
|
|
setting='INSTALLED_APPS',
|
|
value=settings.INSTALLED_APPS,
|
|
enter=False)
|
|
|
|
raise
|
|
|
|
@classmethod
|
|
def _databases_names(cls, include_mirrors=True):
|
|
# If the test case has a multi_db=True flag, act on all databases,
|
|
# including mirrors or not. Otherwise, just on the default DB.
|
|
if getattr(cls, 'multi_db', False):
|
|
return [alias for alias in connections
|
|
if include_mirrors or not connections[alias].settings_dict['TEST']['MIRROR']]
|
|
else:
|
|
return [DEFAULT_DB_ALIAS]
|
|
|
|
def _reset_sequences(self, db_name):
|
|
conn = connections[db_name]
|
|
if conn.features.supports_sequence_reset:
|
|
sql_list = conn.ops.sequence_reset_by_name_sql(
|
|
no_style(), conn.introspection.sequence_list())
|
|
if sql_list:
|
|
with transaction.atomic(using=db_name):
|
|
cursor = conn.cursor()
|
|
for sql in sql_list:
|
|
cursor.execute(sql)
|
|
|
|
def _fixture_setup(self):
|
|
for db_name in self._databases_names(include_mirrors=False):
|
|
# Reset sequences
|
|
if self.reset_sequences:
|
|
self._reset_sequences(db_name)
|
|
|
|
# If we need to provide replica initial data from migrated apps,
|
|
# then do so.
|
|
if self.serialized_rollback and hasattr(connections[db_name], "_test_serialized_contents"):
|
|
if self.available_apps is not None:
|
|
apps.unset_available_apps()
|
|
connections[db_name].creation.deserialize_db_from_string(
|
|
connections[db_name]._test_serialized_contents
|
|
)
|
|
if self.available_apps is not None:
|
|
apps.set_available_apps(self.available_apps)
|
|
|
|
if self.fixtures:
|
|
# We have to use this slightly awkward syntax due to the fact
|
|
# that we're using *args and **kwargs together.
|
|
call_command('loaddata', *self.fixtures,
|
|
**{'verbosity': 0, 'database': db_name})
|
|
|
|
def _should_reload_connections(self):
|
|
return True
|
|
|
|
def _post_teardown(self):
|
|
"""Performs any post-test things. This includes:
|
|
|
|
* Flushing the contents of the database, to leave a clean slate. If
|
|
the class has an 'available_apps' attribute, post_migrate isn't fired.
|
|
* Force-closing the connection, so the next test gets a clean cursor.
|
|
"""
|
|
try:
|
|
self._fixture_teardown()
|
|
super(TransactionTestCase, self)._post_teardown()
|
|
if self._should_reload_connections():
|
|
# Some DB cursors include SQL statements as part of cursor
|
|
# creation. If you have a test that does a rollback, the effect
|
|
# of these statements is lost, which can affect the operation of
|
|
# tests (e.g., losing a timezone setting causing objects to be
|
|
# created with the wrong time). To make sure this doesn't
|
|
# happen, get a clean connection at the start of every test.
|
|
for conn in connections.all():
|
|
conn.close()
|
|
finally:
|
|
if self.available_apps is not None:
|
|
apps.unset_available_apps()
|
|
setting_changed.send(sender=settings._wrapped.__class__,
|
|
setting='INSTALLED_APPS',
|
|
value=settings.INSTALLED_APPS,
|
|
enter=False)
|
|
|
|
def _fixture_teardown(self):
|
|
# Allow TRUNCATE ... CASCADE and don't emit the post_migrate signal
|
|
# when flushing only a subset of the apps
|
|
for db_name in self._databases_names(include_mirrors=False):
|
|
# Flush the database
|
|
call_command('flush', verbosity=0, interactive=False,
|
|
database=db_name, reset_sequences=False,
|
|
allow_cascade=self.available_apps is not None,
|
|
inhibit_post_migrate=self.available_apps is not None)
|
|
|
|
def assertQuerysetEqual(self, qs, values, transform=repr, ordered=True, msg=None):
|
|
items = six.moves.map(transform, qs)
|
|
if not ordered:
|
|
return self.assertEqual(Counter(items), Counter(values), msg=msg)
|
|
values = list(values)
|
|
# For example qs.iterator() could be passed as qs, but it does not
|
|
# have 'ordered' attribute.
|
|
if len(values) > 1 and hasattr(qs, 'ordered') and not qs.ordered:
|
|
raise ValueError("Trying to compare non-ordered queryset "
|
|
"against more than one ordered values")
|
|
return self.assertEqual(list(items), values, msg=msg)
|
|
|
|
def assertNumQueries(self, num, func=None, *args, **kwargs):
|
|
using = kwargs.pop("using", DEFAULT_DB_ALIAS)
|
|
conn = connections[using]
|
|
|
|
context = _AssertNumQueriesContext(self, num, conn)
|
|
if func is None:
|
|
return context
|
|
|
|
with context:
|
|
func(*args, **kwargs)
|
|
|
|
|
|
def connections_support_transactions():
|
|
"""
|
|
Returns True if all connections support transactions.
|
|
"""
|
|
return all(conn.features.supports_transactions
|
|
for conn in connections.all())
|
|
|
|
|
|
class TestCase(TransactionTestCase):
|
|
"""
|
|
Similar to TransactionTestCase, but uses `transaction.atomic()` to achieve
|
|
test isolation.
|
|
|
|
In most situation, TestCase should be prefered to TransactionTestCase as
|
|
it allows faster execution. However, there are some situations where using
|
|
TransactionTestCase might be necessary (e.g. testing some transactional
|
|
behavior).
|
|
|
|
On database backends with no transaction support, TestCase behaves as
|
|
TransactionTestCase.
|
|
"""
|
|
@classmethod
|
|
def _enter_atomics(cls):
|
|
"""Helper method to open atomic blocks for multiple databases"""
|
|
atomics = {}
|
|
for db_name in cls._databases_names():
|
|
atomics[db_name] = transaction.atomic(using=db_name)
|
|
atomics[db_name].__enter__()
|
|
return atomics
|
|
|
|
@classmethod
|
|
def _rollback_atomics(cls, atomics):
|
|
"""Rollback atomic blocks opened through the previous method"""
|
|
for db_name in reversed(cls._databases_names()):
|
|
transaction.set_rollback(True, using=db_name)
|
|
atomics[db_name].__exit__(None, None, None)
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(TestCase, cls).setUpClass()
|
|
if not connections_support_transactions():
|
|
return
|
|
cls.cls_atomics = cls._enter_atomics()
|
|
|
|
if cls.fixtures:
|
|
for db_name in cls._databases_names(include_mirrors=False):
|
|
try:
|
|
call_command('loaddata', *cls.fixtures, **{
|
|
'verbosity': 0,
|
|
'commit': False,
|
|
'database': db_name,
|
|
})
|
|
except Exception:
|
|
cls._rollback_atomics(cls.cls_atomics)
|
|
raise
|
|
cls.setUpTestData()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
if connections_support_transactions():
|
|
cls._rollback_atomics(cls.cls_atomics)
|
|
for conn in connections.all():
|
|
conn.close()
|
|
super(TestCase, cls).tearDownClass()
|
|
|
|
@classmethod
|
|
def setUpTestData(cls):
|
|
"""Load initial data for the TestCase"""
|
|
pass
|
|
|
|
def _should_reload_connections(self):
|
|
if connections_support_transactions():
|
|
return False
|
|
return super(TestCase, self)._should_reload_connections()
|
|
|
|
def _fixture_setup(self):
|
|
if not connections_support_transactions():
|
|
# If the backend does not support transactions, we should reload
|
|
# class data before each test
|
|
self.setUpTestData()
|
|
return super(TestCase, self)._fixture_setup()
|
|
|
|
assert not self.reset_sequences, 'reset_sequences cannot be used on TestCase instances'
|
|
self.atomics = self._enter_atomics()
|
|
|
|
def _fixture_teardown(self):
|
|
if not connections_support_transactions():
|
|
return super(TestCase, self)._fixture_teardown()
|
|
self._rollback_atomics(self.atomics)
|
|
|
|
|
|
class CheckCondition(object):
|
|
"""Descriptor class for deferred condition checking"""
|
|
def __init__(self, cond_func):
|
|
self.cond_func = cond_func
|
|
|
|
def __get__(self, obj, objtype):
|
|
return self.cond_func()
|
|
|
|
|
|
def _deferredSkip(condition, reason):
|
|
def decorator(test_func):
|
|
if not (isinstance(test_func, type) and
|
|
issubclass(test_func, unittest.TestCase)):
|
|
@wraps(test_func)
|
|
def skip_wrapper(*args, **kwargs):
|
|
if condition():
|
|
raise unittest.SkipTest(reason)
|
|
return test_func(*args, **kwargs)
|
|
test_item = skip_wrapper
|
|
else:
|
|
# Assume a class is decorated
|
|
test_item = test_func
|
|
test_item.__unittest_skip__ = CheckCondition(condition)
|
|
test_item.__unittest_skip_why__ = reason
|
|
return test_item
|
|
return decorator
|
|
|
|
|
|
def skipIfDBFeature(*features):
|
|
"""
|
|
Skip a test if a database has at least one of the named features.
|
|
"""
|
|
return _deferredSkip(
|
|
lambda: any(getattr(connection.features, feature, False) for feature in features),
|
|
"Database has feature(s) %s" % ", ".join(features)
|
|
)
|
|
|
|
|
|
def skipUnlessDBFeature(*features):
|
|
"""
|
|
Skip a test unless a database has all the named features.
|
|
"""
|
|
return _deferredSkip(
|
|
lambda: not all(getattr(connection.features, feature, False) for feature in features),
|
|
"Database doesn't support feature(s): %s" % ", ".join(features)
|
|
)
|
|
|
|
|
|
class QuietWSGIRequestHandler(WSGIRequestHandler):
|
|
"""
|
|
Just a regular WSGIRequestHandler except it doesn't log to the standard
|
|
output any of the requests received, so as to not clutter the output for
|
|
the tests' results.
|
|
"""
|
|
|
|
def log_message(*args):
|
|
pass
|
|
|
|
|
|
class FSFilesHandler(WSGIHandler):
|
|
"""
|
|
WSGI middleware that intercepts calls to a directory, as defined by one of
|
|
the *_ROOT settings, and serves those files, publishing them under *_URL.
|
|
"""
|
|
def __init__(self, application):
|
|
self.application = application
|
|
self.base_url = urlparse(self.get_base_url())
|
|
super(FSFilesHandler, self).__init__()
|
|
|
|
def _should_handle(self, path):
|
|
"""
|
|
Checks if the path should be handled. Ignores the path if:
|
|
|
|
* the host is provided as part of the base_url
|
|
* the request's path isn't under the media path (or equal)
|
|
"""
|
|
return path.startswith(self.base_url[2]) and not self.base_url[1]
|
|
|
|
def file_path(self, url):
|
|
"""
|
|
Returns the relative path to the file on disk for the given URL.
|
|
"""
|
|
relative_url = url[len(self.base_url[2]):]
|
|
return url2pathname(relative_url)
|
|
|
|
def get_response(self, request):
|
|
from django.http import Http404
|
|
|
|
if self._should_handle(request.path):
|
|
try:
|
|
return self.serve(request)
|
|
except Http404:
|
|
pass
|
|
return super(FSFilesHandler, self).get_response(request)
|
|
|
|
def serve(self, request):
|
|
os_rel_path = self.file_path(request.path)
|
|
os_rel_path = posixpath.normpath(unquote(os_rel_path))
|
|
# Emulate behavior of django.contrib.staticfiles.views.serve() when it
|
|
# invokes staticfiles' finders functionality.
|
|
# TODO: Modify if/when that internal API is refactored
|
|
final_rel_path = os_rel_path.replace('\\', '/').lstrip('/')
|
|
return serve(request, final_rel_path, document_root=self.get_base_dir())
|
|
|
|
def __call__(self, environ, start_response):
|
|
if not self._should_handle(get_path_info(environ)):
|
|
return self.application(environ, start_response)
|
|
return super(FSFilesHandler, self).__call__(environ, start_response)
|
|
|
|
|
|
class _StaticFilesHandler(FSFilesHandler):
|
|
"""
|
|
Handler for serving static files. A private class that is meant to be used
|
|
solely as a convenience by LiveServerThread.
|
|
"""
|
|
|
|
def get_base_dir(self):
|
|
return settings.STATIC_ROOT
|
|
|
|
def get_base_url(self):
|
|
return settings.STATIC_URL
|
|
|
|
|
|
class _MediaFilesHandler(FSFilesHandler):
|
|
"""
|
|
Handler for serving the media files. A private class that is meant to be
|
|
used solely as a convenience by LiveServerThread.
|
|
"""
|
|
|
|
def get_base_dir(self):
|
|
return settings.MEDIA_ROOT
|
|
|
|
def get_base_url(self):
|
|
return settings.MEDIA_URL
|
|
|
|
|
|
class LiveServerThread(threading.Thread):
|
|
"""
|
|
Thread for running a live http server while the tests are running.
|
|
"""
|
|
|
|
def __init__(self, host, possible_ports, static_handler, connections_override=None):
|
|
self.host = host
|
|
self.port = None
|
|
self.possible_ports = possible_ports
|
|
self.is_ready = threading.Event()
|
|
self.error = None
|
|
self.static_handler = static_handler
|
|
self.connections_override = connections_override
|
|
super(LiveServerThread, self).__init__()
|
|
|
|
def run(self):
|
|
"""
|
|
Sets up the live server and databases, and then loops over handling
|
|
http requests.
|
|
"""
|
|
if self.connections_override:
|
|
# Override this thread's database connections with the ones
|
|
# provided by the main thread.
|
|
for alias, conn in self.connections_override.items():
|
|
connections[alias] = conn
|
|
try:
|
|
# Create the handler for serving static and media files
|
|
handler = self.static_handler(_MediaFilesHandler(WSGIHandler()))
|
|
|
|
# Go through the list of possible ports, hoping that we can find
|
|
# one that is free to use for the WSGI server.
|
|
for index, port in enumerate(self.possible_ports):
|
|
try:
|
|
self.httpd = WSGIServer(
|
|
(self.host, port), QuietWSGIRequestHandler)
|
|
except socket.error as e:
|
|
if (index + 1 < len(self.possible_ports) and
|
|
e.errno == errno.EADDRINUSE):
|
|
# This port is already in use, so we go on and try with
|
|
# the next one in the list.
|
|
continue
|
|
else:
|
|
# Either none of the given ports are free or the error
|
|
# is something else than "Address already in use". So
|
|
# we let that error bubble up to the main thread.
|
|
raise
|
|
else:
|
|
# A free port was found.
|
|
self.port = port
|
|
break
|
|
|
|
self.httpd.set_app(handler)
|
|
self.is_ready.set()
|
|
self.httpd.serve_forever()
|
|
except Exception as e:
|
|
self.error = e
|
|
self.is_ready.set()
|
|
|
|
def terminate(self):
|
|
if hasattr(self, 'httpd'):
|
|
# Stop the WSGI server
|
|
self.httpd.shutdown()
|
|
self.httpd.server_close()
|
|
|
|
|
|
class LiveServerTestCase(TransactionTestCase):
|
|
"""
|
|
Does basically the same as TransactionTestCase but also launches a live
|
|
http server in a separate thread so that the tests may use another testing
|
|
framework, such as Selenium for example, instead of the built-in dummy
|
|
client.
|
|
Note that it inherits from TransactionTestCase instead of TestCase because
|
|
the threads do not share the same transactions (unless if using in-memory
|
|
sqlite) and each thread needs to commit all their transactions so that the
|
|
other thread can see the changes.
|
|
"""
|
|
|
|
static_handler = _StaticFilesHandler
|
|
|
|
@property
|
|
def live_server_url(self):
|
|
return 'http://%s:%s' % (
|
|
self.server_thread.host, self.server_thread.port)
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
super(LiveServerTestCase, cls).setUpClass()
|
|
connections_override = {}
|
|
for conn in connections.all():
|
|
# If using in-memory sqlite databases, pass the connections to
|
|
# the server thread.
|
|
if (conn.vendor == 'sqlite'
|
|
and conn.settings_dict['NAME'] == ':memory:'):
|
|
# Explicitly enable thread-shareability for this connection
|
|
conn.allow_thread_sharing = True
|
|
connections_override[conn.alias] = conn
|
|
|
|
# Launch the live server's thread
|
|
specified_address = os.environ.get(
|
|
'DJANGO_LIVE_TEST_SERVER_ADDRESS', 'localhost:8081')
|
|
|
|
# The specified ports may be of the form '8000-8010,8080,9200-9300'
|
|
# i.e. a comma-separated list of ports or ranges of ports, so we break
|
|
# it down into a detailed list of all possible ports.
|
|
possible_ports = []
|
|
try:
|
|
host, port_ranges = specified_address.split(':')
|
|
for port_range in port_ranges.split(','):
|
|
# A port range can be of either form: '8000' or '8000-8010'.
|
|
extremes = list(map(int, port_range.split('-')))
|
|
assert len(extremes) in [1, 2]
|
|
if len(extremes) == 1:
|
|
# Port range of the form '8000'
|
|
possible_ports.append(extremes[0])
|
|
else:
|
|
# Port range of the form '8000-8010'
|
|
for port in range(extremes[0], extremes[1] + 1):
|
|
possible_ports.append(port)
|
|
except Exception:
|
|
msg = 'Invalid address ("%s") for live server.' % specified_address
|
|
six.reraise(ImproperlyConfigured, ImproperlyConfigured(msg), sys.exc_info()[2])
|
|
cls.server_thread = LiveServerThread(host, possible_ports,
|
|
cls.static_handler,
|
|
connections_override=connections_override)
|
|
cls.server_thread.daemon = True
|
|
cls.server_thread.start()
|
|
|
|
# Wait for the live server to be ready
|
|
cls.server_thread.is_ready.wait()
|
|
if cls.server_thread.error:
|
|
# Clean up behind ourselves, since tearDownClass won't get called in
|
|
# case of errors.
|
|
cls._tearDownClassInternal()
|
|
raise cls.server_thread.error
|
|
|
|
super(LiveServerTestCase, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def _tearDownClassInternal(cls):
|
|
# There may not be a 'server_thread' attribute if setUpClass() for some
|
|
# reasons has raised an exception.
|
|
if hasattr(cls, 'server_thread'):
|
|
# Terminate the live server's thread
|
|
cls.server_thread.terminate()
|
|
cls.server_thread.join()
|
|
|
|
# Restore sqlite connections' non-shareability
|
|
for conn in connections.all():
|
|
if (conn.vendor == 'sqlite'
|
|
and conn.settings_dict['NAME'] == ':memory:'):
|
|
conn.allow_thread_sharing = False
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
cls._tearDownClassInternal()
|
|
super(LiveServerTestCase, cls).tearDownClass()
|