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import functools
import os
from django.template.engine import Engine
from django.test.utils import override_settings
from django.utils.safestring import mark_safe
ROOT = os.path.dirname(os.path.abspath(__file__))
TEMPLATE_DIR = os.path.join(ROOT, 'templates')
def setup(templates, *args, test_once=False):
"""
Runs test method multiple times in the following order:
debug cached string_if_invalid
----- ------ -----------------
False False
False True
False False INVALID
False True INVALID
True False
True True
Use test_once=True to test deprecation warnings since the message won't be
displayed multiple times.
"""
for arg in args:
templates.update(arg)
# numerous tests make use of an inclusion tag
# add this in here for simplicity
templates["inclusion.html"] = "{{ result }}"
loaders = [
('django.template.loaders.cached.Loader', [
('django.template.loaders.locmem.Loader', templates),
]),
]
def decorator(func):
# Make Engine.get_default() raise an exception to ensure that tests
# are properly isolated from Django's global settings.
@override_settings(TEMPLATES=None)
@functools.wraps(func)
def inner(self):
# Set up custom template tag libraries if specified
libraries = getattr(self, 'libraries', {})
self.engine = Engine(
libraries=libraries,
loaders=loaders,
)
func(self)
if test_once:
return
func(self)
self.engine = Engine(
libraries=libraries,
loaders=loaders,
string_if_invalid='INVALID',
)
func(self)
func(self)
self.engine = Engine(
debug=True,
libraries=libraries,
loaders=loaders,
)
func(self)
func(self)
return inner
return decorator
# Helper objects
class SomeException(Exception):
silent_variable_failure = True
class SomeOtherException(Exception):
pass
class ShouldNotExecuteException(Exception):
pass
class SomeClass:
def __init__(self):
self.otherclass = OtherClass()
def method(self):
return 'SomeClass.method'
def method2(self, o):
return o
def method3(self):
raise SomeException
def method4(self):
raise SomeOtherException
def method5(self):
raise TypeError
def __getitem__(self, key):
if key == 'silent_fail_key':
raise SomeException
elif key == 'noisy_fail_key':
raise SomeOtherException
raise KeyError
@property
def silent_fail_attribute(self):
raise SomeException
@property
def noisy_fail_attribute(self):
raise SomeOtherException
@property
def attribute_error_attribute(self):
raise AttributeError
@property
def type_error_attribute(self):
raise TypeError
class OtherClass:
def method(self):
return 'OtherClass.method'
class TestObj:
def is_true(self):
return True
def is_false(self):
return False
def is_bad(self):
raise ShouldNotExecuteException()
class SilentGetItemClass:
def __getitem__(self, key):
raise SomeException
class SilentAttrClass:
def b(self):
raise SomeException
b = property(b)
class UTF8Class:
"Class whose __str__ returns non-ASCII data"
def __str__(self):
return 'ŠĐĆŽćžšđ'
# These two classes are used to test auto-escaping of string output.
class UnsafeClass:
def __str__(self):
return 'you & me'
class SafeClass:
def __str__(self):
return mark_safe('you > me')
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