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django/tests/settings_tests/tests.py
2023-12-31 10:01:31 +01:00

654 lines
24 KiB
Python

import os
import sys
import unittest
from types import ModuleType, SimpleNamespace
from unittest import mock
from django.conf import ENVIRONMENT_VARIABLE, LazySettings, Settings, settings
from django.core.exceptions import ImproperlyConfigured
from django.http import HttpRequest
from django.test import (
SimpleTestCase,
TestCase,
TransactionTestCase,
modify_settings,
override_settings,
signals,
)
from django.test.utils import requires_tz_support
from django.urls import clear_script_prefix, set_script_prefix
@modify_settings(ITEMS={"prepend": ["b"], "append": ["d"], "remove": ["a", "e"]})
@override_settings(
ITEMS=["a", "c", "e"], ITEMS_OUTER=[1, 2, 3], TEST="override", TEST_OUTER="outer"
)
class FullyDecoratedTranTestCase(TransactionTestCase):
available_apps = []
def test_override(self):
self.assertEqual(settings.ITEMS, ["b", "c", "d"])
self.assertEqual(settings.ITEMS_OUTER, [1, 2, 3])
self.assertEqual(settings.TEST, "override")
self.assertEqual(settings.TEST_OUTER, "outer")
@modify_settings(
ITEMS={
"append": ["e", "f"],
"prepend": ["a"],
"remove": ["d", "c"],
}
)
def test_method_list_override(self):
self.assertEqual(settings.ITEMS, ["a", "b", "e", "f"])
self.assertEqual(settings.ITEMS_OUTER, [1, 2, 3])
@modify_settings(
ITEMS={
"append": ["b"],
"prepend": ["d"],
"remove": ["a", "c", "e"],
}
)
def test_method_list_override_no_ops(self):
self.assertEqual(settings.ITEMS, ["b", "d"])
@modify_settings(
ITEMS={
"append": "e",
"prepend": "a",
"remove": "c",
}
)
def test_method_list_override_strings(self):
self.assertEqual(settings.ITEMS, ["a", "b", "d", "e"])
@modify_settings(ITEMS={"remove": ["b", "d"]})
@modify_settings(ITEMS={"append": ["b"], "prepend": ["d"]})
def test_method_list_override_nested_order(self):
self.assertEqual(settings.ITEMS, ["d", "c", "b"])
@override_settings(TEST="override2")
def test_method_override(self):
self.assertEqual(settings.TEST, "override2")
self.assertEqual(settings.TEST_OUTER, "outer")
def test_decorated_testcase_name(self):
self.assertEqual(
FullyDecoratedTranTestCase.__name__, "FullyDecoratedTranTestCase"
)
def test_decorated_testcase_module(self):
self.assertEqual(FullyDecoratedTranTestCase.__module__, __name__)
@modify_settings(ITEMS={"prepend": ["b"], "append": ["d"], "remove": ["a", "e"]})
@override_settings(ITEMS=["a", "c", "e"], TEST="override")
class FullyDecoratedTestCase(TestCase):
def test_override(self):
self.assertEqual(settings.ITEMS, ["b", "c", "d"])
self.assertEqual(settings.TEST, "override")
@modify_settings(
ITEMS={
"append": "e",
"prepend": "a",
"remove": "c",
}
)
@override_settings(TEST="override2")
def test_method_override(self):
self.assertEqual(settings.ITEMS, ["a", "b", "d", "e"])
self.assertEqual(settings.TEST, "override2")
class ClassDecoratedTestCaseSuper(TestCase):
"""
Dummy class for testing max recursion error in child class call to
super(). Refs #17011.
"""
def test_max_recursion_error(self):
pass
@override_settings(TEST="override")
class ClassDecoratedTestCase(ClassDecoratedTestCaseSuper):
@classmethod
def setUpClass(cls):
super().setUpClass()
cls.foo = getattr(settings, "TEST", "BUG")
def test_override(self):
self.assertEqual(settings.TEST, "override")
def test_setupclass_override(self):
"""Settings are overridden within setUpClass (#21281)."""
self.assertEqual(self.foo, "override")
@override_settings(TEST="override2")
def test_method_override(self):
self.assertEqual(settings.TEST, "override2")
def test_max_recursion_error(self):
"""
Overriding a method on a super class and then calling that method on
the super class should not trigger infinite recursion. See #17011.
"""
super().test_max_recursion_error()
@modify_settings(ITEMS={"append": "mother"})
@override_settings(ITEMS=["father"], TEST="override-parent")
class ParentDecoratedTestCase(TestCase):
pass
@modify_settings(ITEMS={"append": ["child"]})
@override_settings(TEST="override-child")
class ChildDecoratedTestCase(ParentDecoratedTestCase):
def test_override_settings_inheritance(self):
self.assertEqual(settings.ITEMS, ["father", "mother", "child"])
self.assertEqual(settings.TEST, "override-child")
class SettingsTests(SimpleTestCase):
def setUp(self):
self.testvalue = None
signals.setting_changed.connect(self.signal_callback)
self.addCleanup(signals.setting_changed.disconnect, self.signal_callback)
def signal_callback(self, sender, setting, value, **kwargs):
if setting == "TEST":
self.testvalue = value
def test_override(self):
settings.TEST = "test"
self.assertEqual("test", settings.TEST)
with self.settings(TEST="override"):
self.assertEqual("override", settings.TEST)
self.assertEqual("test", settings.TEST)
del settings.TEST
def test_override_change(self):
settings.TEST = "test"
self.assertEqual("test", settings.TEST)
with self.settings(TEST="override"):
self.assertEqual("override", settings.TEST)
settings.TEST = "test2"
self.assertEqual("test", settings.TEST)
del settings.TEST
def test_override_doesnt_leak(self):
with self.assertRaises(AttributeError):
getattr(settings, "TEST")
with self.settings(TEST="override"):
self.assertEqual("override", settings.TEST)
settings.TEST = "test"
with self.assertRaises(AttributeError):
getattr(settings, "TEST")
@override_settings(TEST="override")
def test_decorator(self):
self.assertEqual("override", settings.TEST)
def test_context_manager(self):
with self.assertRaises(AttributeError):
getattr(settings, "TEST")
override = override_settings(TEST="override")
with self.assertRaises(AttributeError):
getattr(settings, "TEST")
override.enable()
self.assertEqual("override", settings.TEST)
override.disable()
with self.assertRaises(AttributeError):
getattr(settings, "TEST")
def test_class_decorator(self):
# SimpleTestCase can be decorated by override_settings, but not ut.TestCase
class SimpleTestCaseSubclass(SimpleTestCase):
pass
class UnittestTestCaseSubclass(unittest.TestCase):
pass
decorated = override_settings(TEST="override")(SimpleTestCaseSubclass)
self.assertIsInstance(decorated, type)
self.assertTrue(issubclass(decorated, SimpleTestCase))
with self.assertRaisesMessage(
Exception, "Only subclasses of Django SimpleTestCase"
):
decorated = override_settings(TEST="override")(UnittestTestCaseSubclass)
def test_signal_callback_context_manager(self):
with self.assertRaises(AttributeError):
getattr(settings, "TEST")
with self.settings(TEST="override"):
self.assertEqual(self.testvalue, "override")
self.assertIsNone(self.testvalue)
@override_settings(TEST="override")
def test_signal_callback_decorator(self):
self.assertEqual(self.testvalue, "override")
#
# Regression tests for #10130: deleting settings.
#
def test_settings_delete(self):
settings.TEST = "test"
self.assertEqual("test", settings.TEST)
del settings.TEST
msg = "'Settings' object has no attribute 'TEST'"
with self.assertRaisesMessage(AttributeError, msg):
getattr(settings, "TEST")
def test_settings_delete_wrapped(self):
with self.assertRaisesMessage(TypeError, "can't delete _wrapped."):
delattr(settings, "_wrapped")
def test_override_settings_delete(self):
"""
Allow deletion of a setting in an overridden settings set (#18824)
"""
previous_i18n = settings.USE_I18N
previous_tz = settings.USE_TZ
with self.settings(USE_I18N=False):
del settings.USE_I18N
with self.assertRaises(AttributeError):
getattr(settings, "USE_I18N")
# Should also work for a non-overridden setting
del settings.USE_TZ
with self.assertRaises(AttributeError):
getattr(settings, "USE_TZ")
self.assertNotIn("USE_I18N", dir(settings))
self.assertNotIn("USE_TZ", dir(settings))
self.assertEqual(settings.USE_I18N, previous_i18n)
self.assertEqual(settings.USE_TZ, previous_tz)
def test_override_settings_nested(self):
"""
override_settings uses the actual _wrapped attribute at
runtime, not when it was instantiated.
"""
with self.assertRaises(AttributeError):
getattr(settings, "TEST")
with self.assertRaises(AttributeError):
getattr(settings, "TEST2")
inner = override_settings(TEST2="override")
with override_settings(TEST="override"):
self.assertEqual("override", settings.TEST)
with inner:
self.assertEqual("override", settings.TEST)
self.assertEqual("override", settings.TEST2)
# inner's __exit__ should have restored the settings of the outer
# context manager, not those when the class was instantiated
self.assertEqual("override", settings.TEST)
with self.assertRaises(AttributeError):
getattr(settings, "TEST2")
with self.assertRaises(AttributeError):
getattr(settings, "TEST")
with self.assertRaises(AttributeError):
getattr(settings, "TEST2")
@override_settings(SECRET_KEY="")
def test_no_secret_key(self):
msg = "The SECRET_KEY setting must not be empty."
with self.assertRaisesMessage(ImproperlyConfigured, msg):
settings.SECRET_KEY
def test_no_settings_module(self):
msg = (
"Requested setting%s, but settings are not configured. You "
"must either define the environment variable DJANGO_SETTINGS_MODULE "
"or call settings.configure() before accessing settings."
)
orig_settings = os.environ[ENVIRONMENT_VARIABLE]
os.environ[ENVIRONMENT_VARIABLE] = ""
try:
with self.assertRaisesMessage(ImproperlyConfigured, msg % "s"):
settings._setup()
with self.assertRaisesMessage(ImproperlyConfigured, msg % " TEST"):
settings._setup("TEST")
finally:
os.environ[ENVIRONMENT_VARIABLE] = orig_settings
def test_already_configured(self):
with self.assertRaisesMessage(RuntimeError, "Settings already configured."):
settings.configure()
def test_nonupper_settings_prohibited_in_configure(self):
s = LazySettings()
with self.assertRaisesMessage(TypeError, "Setting 'foo' must be uppercase."):
s.configure(foo="bar")
def test_nonupper_settings_ignored_in_default_settings(self):
s = LazySettings()
s.configure(SimpleNamespace(foo="bar"))
with self.assertRaises(AttributeError):
getattr(s, "foo")
@requires_tz_support
@mock.patch("django.conf.global_settings.TIME_ZONE", "test")
def test_incorrect_timezone(self):
with self.assertRaisesMessage(ValueError, "Incorrect timezone setting: test"):
settings._setup()
class TestComplexSettingOverride(SimpleTestCase):
def setUp(self):
self.old_warn_override_settings = signals.COMPLEX_OVERRIDE_SETTINGS.copy()
signals.COMPLEX_OVERRIDE_SETTINGS.add("TEST_WARN")
def tearDown(self):
signals.COMPLEX_OVERRIDE_SETTINGS = self.old_warn_override_settings
self.assertNotIn("TEST_WARN", signals.COMPLEX_OVERRIDE_SETTINGS)
def test_complex_override_warning(self):
"""Regression test for #19031"""
msg = "Overriding setting TEST_WARN can lead to unexpected behavior."
with self.assertWarnsMessage(UserWarning, msg) as cm:
with override_settings(TEST_WARN="override"):
self.assertEqual(settings.TEST_WARN, "override")
self.assertEqual(cm.filename, __file__)
class SecureProxySslHeaderTest(SimpleTestCase):
@override_settings(SECURE_PROXY_SSL_HEADER=None)
def test_none(self):
req = HttpRequest()
self.assertIs(req.is_secure(), False)
@override_settings(SECURE_PROXY_SSL_HEADER=("HTTP_X_FORWARDED_PROTO", "https"))
def test_set_without_xheader(self):
req = HttpRequest()
self.assertIs(req.is_secure(), False)
@override_settings(SECURE_PROXY_SSL_HEADER=("HTTP_X_FORWARDED_PROTO", "https"))
def test_set_with_xheader_wrong(self):
req = HttpRequest()
req.META["HTTP_X_FORWARDED_PROTO"] = "wrongvalue"
self.assertIs(req.is_secure(), False)
@override_settings(SECURE_PROXY_SSL_HEADER=("HTTP_X_FORWARDED_PROTO", "https"))
def test_set_with_xheader_right(self):
req = HttpRequest()
req.META["HTTP_X_FORWARDED_PROTO"] = "https"
self.assertIs(req.is_secure(), True)
@override_settings(SECURE_PROXY_SSL_HEADER=("HTTP_X_FORWARDED_PROTO", "https"))
def test_set_with_xheader_leftmost_right(self):
req = HttpRequest()
req.META["HTTP_X_FORWARDED_PROTO"] = "https, http"
self.assertIs(req.is_secure(), True)
req.META["HTTP_X_FORWARDED_PROTO"] = "https , http"
self.assertIs(req.is_secure(), True)
@override_settings(SECURE_PROXY_SSL_HEADER=("HTTP_X_FORWARDED_PROTO", "https"))
def test_set_with_xheader_leftmost_not_secure(self):
req = HttpRequest()
req.META["HTTP_X_FORWARDED_PROTO"] = "http, https"
self.assertIs(req.is_secure(), False)
@override_settings(SECURE_PROXY_SSL_HEADER=("HTTP_X_FORWARDED_PROTO", "https"))
def test_set_with_xheader_multiple_not_secure(self):
req = HttpRequest()
req.META["HTTP_X_FORWARDED_PROTO"] = "http ,wrongvalue,http,http"
self.assertIs(req.is_secure(), False)
@override_settings(SECURE_PROXY_SSL_HEADER=("HTTP_X_FORWARDED_PROTO", "https"))
def test_xheader_preferred_to_underlying_request(self):
class ProxyRequest(HttpRequest):
def _get_scheme(self):
"""Proxy always connecting via HTTPS"""
return "https"
# Client connects via HTTP.
req = ProxyRequest()
req.META["HTTP_X_FORWARDED_PROTO"] = "http"
self.assertIs(req.is_secure(), False)
class IsOverriddenTest(SimpleTestCase):
def test_configure(self):
s = LazySettings()
s.configure(SECRET_KEY="foo")
self.assertTrue(s.is_overridden("SECRET_KEY"))
def test_module(self):
settings_module = ModuleType("fake_settings_module")
settings_module.SECRET_KEY = "foo"
settings_module.USE_TZ = False
sys.modules["fake_settings_module"] = settings_module
try:
s = Settings("fake_settings_module")
self.assertTrue(s.is_overridden("SECRET_KEY"))
self.assertFalse(s.is_overridden("ALLOWED_HOSTS"))
finally:
del sys.modules["fake_settings_module"]
def test_override(self):
self.assertFalse(settings.is_overridden("ALLOWED_HOSTS"))
with override_settings(ALLOWED_HOSTS=[]):
self.assertTrue(settings.is_overridden("ALLOWED_HOSTS"))
def test_unevaluated_lazysettings_repr(self):
lazy_settings = LazySettings()
expected = "<LazySettings [Unevaluated]>"
self.assertEqual(repr(lazy_settings), expected)
def test_evaluated_lazysettings_repr(self):
lazy_settings = LazySettings()
module = os.environ.get(ENVIRONMENT_VARIABLE)
expected = '<LazySettings "%s">' % module
# Force evaluation of the lazy object.
lazy_settings.APPEND_SLASH
self.assertEqual(repr(lazy_settings), expected)
def test_usersettingsholder_repr(self):
lazy_settings = LazySettings()
lazy_settings.configure(APPEND_SLASH=False)
expected = "<UserSettingsHolder>"
self.assertEqual(repr(lazy_settings._wrapped), expected)
def test_settings_repr(self):
module = os.environ.get(ENVIRONMENT_VARIABLE)
lazy_settings = Settings(module)
expected = '<Settings "%s">' % module
self.assertEqual(repr(lazy_settings), expected)
class TestListSettings(SimpleTestCase):
"""
Make sure settings that should be lists or tuples throw
ImproperlyConfigured if they are set to a string instead of a list or tuple.
"""
list_or_tuple_settings = (
"ALLOWED_HOSTS",
"INSTALLED_APPS",
"TEMPLATE_DIRS",
"LOCALE_PATHS",
"SECRET_KEY_FALLBACKS",
)
def test_tuple_settings(self):
settings_module = ModuleType("fake_settings_module")
settings_module.SECRET_KEY = "foo"
msg = "The %s setting must be a list or a tuple."
for setting in self.list_or_tuple_settings:
setattr(settings_module, setting, ("non_list_or_tuple_value"))
sys.modules["fake_settings_module"] = settings_module
try:
with self.assertRaisesMessage(ImproperlyConfigured, msg % setting):
Settings("fake_settings_module")
finally:
del sys.modules["fake_settings_module"]
delattr(settings_module, setting)
class SettingChangeEnterException(Exception):
pass
class SettingChangeExitException(Exception):
pass
class OverrideSettingsIsolationOnExceptionTests(SimpleTestCase):
"""
The override_settings context manager restore settings if one of the
receivers of "setting_changed" signal fails. Check the three cases of
receiver failure detailed in receiver(). In each case, ALL receivers are
called when exiting the context manager.
"""
def setUp(self):
signals.setting_changed.connect(self.receiver)
self.addCleanup(signals.setting_changed.disconnect, self.receiver)
# Create a spy that's connected to the `setting_changed` signal and
# executed AFTER `self.receiver`.
self.spy_receiver = mock.Mock()
signals.setting_changed.connect(self.spy_receiver)
self.addCleanup(signals.setting_changed.disconnect, self.spy_receiver)
def receiver(self, **kwargs):
"""
A receiver that fails while certain settings are being changed.
- SETTING_BOTH raises an error while receiving the signal
on both entering and exiting the context manager.
- SETTING_ENTER raises an error only on enter.
- SETTING_EXIT raises an error only on exit.
"""
setting = kwargs["setting"]
enter = kwargs["enter"]
if setting in ("SETTING_BOTH", "SETTING_ENTER") and enter:
raise SettingChangeEnterException
if setting in ("SETTING_BOTH", "SETTING_EXIT") and not enter:
raise SettingChangeExitException
def check_settings(self):
"""Assert that settings for these tests aren't present."""
self.assertFalse(hasattr(settings, "SETTING_BOTH"))
self.assertFalse(hasattr(settings, "SETTING_ENTER"))
self.assertFalse(hasattr(settings, "SETTING_EXIT"))
self.assertFalse(hasattr(settings, "SETTING_PASS"))
def check_spy_receiver_exit_calls(self, call_count):
"""
Assert that `self.spy_receiver` was called exactly `call_count` times
with the ``enter=False`` keyword argument.
"""
kwargs_with_exit = [
kwargs
for args, kwargs in self.spy_receiver.call_args_list
if ("enter", False) in kwargs.items()
]
self.assertEqual(len(kwargs_with_exit), call_count)
def test_override_settings_both(self):
"""Receiver fails on both enter and exit."""
with self.assertRaises(SettingChangeEnterException):
with override_settings(SETTING_PASS="BOTH", SETTING_BOTH="BOTH"):
pass
self.check_settings()
# Two settings were touched, so expect two calls of `spy_receiver`.
self.check_spy_receiver_exit_calls(call_count=2)
def test_override_settings_enter(self):
"""Receiver fails on enter only."""
with self.assertRaises(SettingChangeEnterException):
with override_settings(SETTING_PASS="ENTER", SETTING_ENTER="ENTER"):
pass
self.check_settings()
# Two settings were touched, so expect two calls of `spy_receiver`.
self.check_spy_receiver_exit_calls(call_count=2)
def test_override_settings_exit(self):
"""Receiver fails on exit only."""
with self.assertRaises(SettingChangeExitException):
with override_settings(SETTING_PASS="EXIT", SETTING_EXIT="EXIT"):
pass
self.check_settings()
# Two settings were touched, so expect two calls of `spy_receiver`.
self.check_spy_receiver_exit_calls(call_count=2)
def test_override_settings_reusable_on_enter(self):
"""
Error is raised correctly when reusing the same override_settings
instance.
"""
@override_settings(SETTING_ENTER="ENTER")
def decorated_function():
pass
with self.assertRaises(SettingChangeEnterException):
decorated_function()
signals.setting_changed.disconnect(self.receiver)
# This call shouldn't raise any errors.
decorated_function()
class MediaURLStaticURLPrefixTest(SimpleTestCase):
def set_script_name(self, val):
clear_script_prefix()
if val is not None:
set_script_prefix(val)
def test_not_prefixed(self):
# Don't add SCRIPT_NAME prefix to absolute paths, URLs, or None.
tests = (
"/path/",
"http://myhost.com/path/",
"http://myhost/path/",
"https://myhost/path/",
None,
)
for setting in ("MEDIA_URL", "STATIC_URL"):
for path in tests:
new_settings = {setting: path}
with self.settings(**new_settings):
for script_name in ["/somesubpath", "/somesubpath/", "/", "", None]:
with self.subTest(script_name=script_name, **new_settings):
try:
self.set_script_name(script_name)
self.assertEqual(getattr(settings, setting), path)
finally:
clear_script_prefix()
def test_add_script_name_prefix(self):
tests = (
# Relative paths.
("/somesubpath", "path/", "/somesubpath/path/"),
("/somesubpath/", "path/", "/somesubpath/path/"),
("/", "path/", "/path/"),
# Invalid URLs.
(
"/somesubpath/",
"htp://myhost.com/path/",
"/somesubpath/htp://myhost.com/path/",
),
# Blank settings.
("/somesubpath/", "", "/somesubpath/"),
)
for setting in ("MEDIA_URL", "STATIC_URL"):
for script_name, path, expected_path in tests:
new_settings = {setting: path}
with self.settings(**new_settings):
with self.subTest(script_name=script_name, **new_settings):
try:
self.set_script_name(script_name)
self.assertEqual(getattr(settings, setting), expected_path)
finally:
clear_script_prefix()