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tests.py
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tests.py
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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.conf import settings
if __name__ == '__main__':
# When running this file in isolation, we need to set up the configuration
# before importing 'template'.
settings.configure()
from datetime import date, datetime
import os
import sys
import traceback
import unittest
import warnings
from django import template
from django.core import urlresolvers
from django.template import (base as template_base, loader, Context,
RequestContext, Template, TemplateSyntaxError)
from django.template.loaders import app_directories, filesystem, cached
from django.test import RequestFactory, TestCase
from django.test.utils import (setup_test_template_loader,
restore_template_loaders, override_settings, TransRealMixin)
from django.utils.encoding import python_2_unicode_compatible
from django.utils.formats import date_format
from django.utils._os import upath
from django.utils.translation import activate, deactivate
from django.utils.safestring import mark_safe
from django.utils import six
from django.utils.six.moves.urllib.parse import urljoin
# NumPy installed?
try:
import numpy
except ImportError:
numpy = False
from . import filters
#################################
# Custom template tag for tests #
#################################
register = template.Library()
class EchoNode(template.Node):
def __init__(self, contents):
self.contents = contents
def render(self, context):
return " ".join(self.contents)
def do_echo(parser, token):
return EchoNode(token.contents.split()[1:])
def do_upper(value):
return value.upper()
register.tag("echo", do_echo)
register.tag("other_echo", do_echo)
register.filter("upper", do_upper)
template.libraries['testtags'] = register
#####################################
# Helper objects for template tests #
#####################################
class SomeException(Exception):
silent_variable_failure = True
class SomeOtherException(Exception):
pass
class ContextStackException(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
def silent_fail_attribute(self):
raise SomeException
silent_fail_attribute = property(silent_fail_attribute)
def noisy_fail_attribute(self):
raise SomeOtherException
noisy_fail_attribute = property(noisy_fail_attribute)
class OtherClass:
def method(self):
return "OtherClass.method"
class TestObj(object):
def is_true(self):
return True
def is_false(self):
return False
def is_bad(self):
raise ShouldNotExecuteException()
class SilentGetItemClass(object):
def __getitem__(self, key):
raise SomeException
class SilentAttrClass(object):
def b(self):
raise SomeException
b = property(b)
@python_2_unicode_compatible
class UTF8Class:
"Class whose __str__ returns non-ASCII data on Python 2"
def __str__(self):
return 'ŠĐĆŽćžšđ'
class TemplateLoaderTests(TestCase):
def test_loaders_security(self):
ad_loader = app_directories.Loader()
fs_loader = filesystem.Loader()
def test_template_sources(path, template_dirs, expected_sources):
if isinstance(expected_sources, list):
# Fix expected sources so they are abspathed
expected_sources = [os.path.abspath(s) for s in expected_sources]
# Test the two loaders (app_directores and filesystem).
func1 = lambda p, t: list(ad_loader.get_template_sources(p, t))
func2 = lambda p, t: list(fs_loader.get_template_sources(p, t))
for func in (func1, func2):
if isinstance(expected_sources, list):
self.assertEqual(func(path, template_dirs), expected_sources)
else:
self.assertRaises(expected_sources, func, path, template_dirs)
template_dirs = ['/dir1', '/dir2']
test_template_sources('index.html', template_dirs,
['/dir1/index.html', '/dir2/index.html'])
test_template_sources('/etc/passwd', template_dirs, [])
test_template_sources('etc/passwd', template_dirs,
['/dir1/etc/passwd', '/dir2/etc/passwd'])
test_template_sources('../etc/passwd', template_dirs, [])
test_template_sources('../../../etc/passwd', template_dirs, [])
test_template_sources('/dir1/index.html', template_dirs,
['/dir1/index.html'])
test_template_sources('../dir2/index.html', template_dirs,
['/dir2/index.html'])
test_template_sources('/dir1blah', template_dirs, [])
test_template_sources('../dir1blah', template_dirs, [])
# UTF-8 bytestrings are permitted.
test_template_sources(b'\xc3\x85ngstr\xc3\xb6m', template_dirs,
['/dir1/Ångström', '/dir2/Ångström'])
# Unicode strings are permitted.
test_template_sources('Ångström', template_dirs,
['/dir1/Ångström', '/dir2/Ångström'])
test_template_sources('Ångström', [b'/Stra\xc3\x9fe'], ['/Straße/Ångström'])
test_template_sources(b'\xc3\x85ngstr\xc3\xb6m', [b'/Stra\xc3\x9fe'],
['/Straße/Ångström'])
# Invalid UTF-8 encoding in bytestrings is not. Should raise a
# semi-useful error message.
test_template_sources(b'\xc3\xc3', template_dirs, UnicodeDecodeError)
# Case insensitive tests (for win32). Not run unless we're on
# a case insensitive operating system.
if os.path.normcase('/TEST') == os.path.normpath('/test'):
template_dirs = ['/dir1', '/DIR2']
test_template_sources('index.html', template_dirs,
['/dir1/index.html', '/DIR2/index.html'])
test_template_sources('/DIR1/index.HTML', template_dirs,
['/DIR1/index.HTML'])
# Turn TEMPLATE_DEBUG on, so that the origin file name will be kept with
# the compiled templates.
@override_settings(TEMPLATE_DEBUG=True)
def test_loader_debug_origin(self):
old_loaders = loader.template_source_loaders
try:
loader.template_source_loaders = (filesystem.Loader(),)
# We rely on the fact that runtests.py sets up TEMPLATE_DIRS to
# point to a directory containing a login.html file. Also that
# the file system and app directories loaders both inherit the
# load_template method from the BaseLoader class, so we only need
# to test one of them.
load_name = 'login.html'
template = loader.get_template(load_name)
template_name = template.nodelist[0].source[0].name
self.assertTrue(template_name.endswith(load_name),
'Template loaded by filesystem loader has incorrect name for debug page: %s' % template_name)
# Aso test the cached loader, since it overrides load_template
cache_loader = cached.Loader(('',))
cache_loader._cached_loaders = loader.template_source_loaders
loader.template_source_loaders = (cache_loader,)
template = loader.get_template(load_name)
template_name = template.nodelist[0].source[0].name
self.assertTrue(template_name.endswith(load_name),
'Template loaded through cached loader has incorrect name for debug page: %s' % template_name)
template = loader.get_template(load_name)
template_name = template.nodelist[0].source[0].name
self.assertTrue(template_name.endswith(load_name),
'Cached template loaded through cached loader has incorrect name for debug page: %s' % template_name)
finally:
loader.template_source_loaders = old_loaders
def test_loader_origin(self):
with self.settings(TEMPLATE_DEBUG=True):
template = loader.get_template('login.html')
self.assertEqual(template.origin.loadname, 'login.html')
def test_string_origin(self):
with self.settings(TEMPLATE_DEBUG=True):
template = Template('string template')
self.assertEqual(template.origin.source, 'string template')
def test_debug_false_origin(self):
template = loader.get_template('login.html')
self.assertEqual(template.origin, None)
# TEMPLATE_DEBUG must be true, otherwise the exception raised
# during {% include %} processing will be suppressed.
@override_settings(TEMPLATE_DEBUG=True)
def test_include_missing_template(self):
"""
Tests that the correct template is identified as not existing
when {% include %} specifies a template that does not exist.
"""
old_loaders = loader.template_source_loaders
try:
# Test the base loader class via the app loader. load_template
# from base is used by all shipped loaders excepting cached,
# which has its own test.
loader.template_source_loaders = (app_directories.Loader(),)
load_name = 'test_include_error.html'
r = None
try:
tmpl = loader.select_template([load_name])
r = tmpl.render(template.Context({}))
except template.TemplateDoesNotExist as e:
self.assertEqual(e.args[0], 'missing.html')
self.assertEqual(r, None, 'Template rendering unexpectedly succeeded, produced: ->%r<-' % r)
finally:
loader.template_source_loaders = old_loaders
# TEMPLATE_DEBUG must be true, otherwise the exception raised
# during {% include %} processing will be suppressed.
@override_settings(TEMPLATE_DEBUG=True)
def test_extends_include_missing_baseloader(self):
"""
Tests that the correct template is identified as not existing
when {% extends %} specifies a template that does exist, but
that template has an {% include %} of something that does not
exist. See #12787.
"""
old_loaders = loader.template_source_loaders
try:
# Test the base loader class via the app loader. load_template
# from base is used by all shipped loaders excepting cached,
# which has its own test.
loader.template_source_loaders = (app_directories.Loader(),)
load_name = 'test_extends_error.html'
tmpl = loader.get_template(load_name)
r = None
try:
r = tmpl.render(template.Context({}))
except template.TemplateDoesNotExist as e:
self.assertEqual(e.args[0], 'missing.html')
self.assertEqual(r, None, 'Template rendering unexpectedly succeeded, produced: ->%r<-' % r)
finally:
loader.template_source_loaders = old_loaders
@override_settings(TEMPLATE_DEBUG=True)
def test_extends_include_missing_cachedloader(self):
"""
Same as test_extends_include_missing_baseloader, only tests
behavior of the cached loader instead of BaseLoader.
"""
old_loaders = loader.template_source_loaders
try:
cache_loader = cached.Loader(('',))
cache_loader._cached_loaders = (app_directories.Loader(),)
loader.template_source_loaders = (cache_loader,)
load_name = 'test_extends_error.html'
tmpl = loader.get_template(load_name)
r = None
try:
r = tmpl.render(template.Context({}))
except template.TemplateDoesNotExist as e:
self.assertEqual(e.args[0], 'missing.html')
self.assertEqual(r, None, 'Template rendering unexpectedly succeeded, produced: ->%r<-' % r)
# For the cached loader, repeat the test, to ensure the first attempt did not cache a
# result that behaves incorrectly on subsequent attempts.
tmpl = loader.get_template(load_name)
try:
tmpl.render(template.Context({}))
except template.TemplateDoesNotExist as e:
self.assertEqual(e.args[0], 'missing.html')
self.assertEqual(r, None, 'Template rendering unexpectedly succeeded, produced: ->%r<-' % r)
finally:
loader.template_source_loaders = old_loaders
def test_include_template_argument(self):
"""
Support any render() supporting object
"""
ctx = Context({
'tmpl': Template('This worked!'),
})
outer_tmpl = Template('{% include tmpl %}')
output = outer_tmpl.render(ctx)
self.assertEqual(output, 'This worked!')
@override_settings(TEMPLATE_DEBUG=True)
def test_include_immediate_missing(self):
"""
Regression test for #16417 -- {% include %} tag raises TemplateDoesNotExist at compile time if TEMPLATE_DEBUG is True
Test that an {% include %} tag with a literal string referencing a
template that does not exist does not raise an exception at parse
time.
"""
tmpl = Template('{% include "this_does_not_exist.html" %}')
self.assertIsInstance(tmpl, Template)
@override_settings(TEMPLATE_DEBUG=True)
def test_include_recursive(self):
comments = [
{
'comment': 'A1',
'children': [
{'comment': 'B1', 'children': []},
{'comment': 'B2', 'children': []},
{'comment': 'B3', 'children': [
{'comment': 'C1', 'children': []}
]},
]
}
]
t = loader.get_template('recursive_include.html')
self.assertEqual(
"Recursion! A1 Recursion! B1 B2 B3 Recursion! C1",
t.render(Context({'comments': comments})).replace(' ', '').replace('\n', ' ').strip(),
)
class TemplateRegressionTests(TestCase):
def test_token_smart_split(self):
# Regression test for #7027
token = template.Token(template.TOKEN_BLOCK, 'sometag _("Page not found") value|yesno:_("yes,no")')
split = token.split_contents()
self.assertEqual(split, ["sometag", '_("Page not found")', 'value|yesno:_("yes,no")'])
@override_settings(SETTINGS_MODULE=None, TEMPLATE_DEBUG=True)
def test_url_reverse_no_settings_module(self):
# Regression test for #9005
t = Template('{% url will_not_match %}')
c = Context()
with self.assertRaises(urlresolvers.NoReverseMatch):
t.render(c)
@override_settings(TEMPLATE_STRING_IF_INVALID='%s is invalid', SETTINGS_MODULE='also_something')
def test_url_reverse_view_name(self):
# Regression test for #19827
t = Template('{% url will_not_match %}')
c = Context()
try:
t.render(c)
except urlresolvers.NoReverseMatch:
tb = sys.exc_info()[2]
depth = 0
while tb.tb_next is not None:
tb = tb.tb_next
depth += 1
self.assertTrue(depth > 5,
"The traceback context was lost when reraising the traceback. See #19827")
def test_url_explicit_exception_for_old_syntax_at_run_time(self):
# Regression test for #19280
t = Template('{% url path.to.view %}') # not quoted = old syntax
c = Context()
with six.assertRaisesRegex(self, urlresolvers.NoReverseMatch,
"The syntax changed in Django 1.5, see the docs."):
t.render(c)
def test_url_explicit_exception_for_old_syntax_at_compile_time(self):
# Regression test for #19392
with six.assertRaisesRegex(self, template.TemplateSyntaxError,
"The syntax of 'url' changed in Django 1.5, see the docs."):
Template('{% url my-view %}') # not a variable = old syntax
@override_settings(DEBUG=True, TEMPLATE_DEBUG=True)
def test_no_wrapped_exception(self):
"""
The template system doesn't wrap exceptions, but annotates them.
Refs #16770
"""
c = Context({"coconuts": lambda: 42 / 0})
t = Template("{{ coconuts }}")
with self.assertRaises(ZeroDivisionError) as cm:
t.render(c)
self.assertEqual(cm.exception.django_template_source[1], (0, 14))
def test_invalid_block_suggestion(self):
# See #7876
try:
Template("{% if 1 %}lala{% endblock %}{% endif %}")
except TemplateSyntaxError as e:
self.assertEqual(e.args[0], "Invalid block tag: 'endblock', expected 'elif', 'else' or 'endif'")
def test_ifchanged_concurrency(self):
# Tests for #15849
template = Template('[0{% for x in foo %},{% with var=get_value %}{% ifchanged %}{{ var }}{% endifchanged %}{% endwith %}{% endfor %}]')
# Using generator to mimic concurrency.
# The generator is not passed to the 'for' loop, because it does a list(values)
# instead, call gen.next() in the template to control the generator.
def gen():
yield 1
yield 2
# Simulate that another thread is now rendering.
# When the IfChangeNode stores state at 'self' it stays at '3' and skip the last yielded value below.
iter2 = iter([1, 2, 3])
output2 = template.render(Context({'foo': range(3), 'get_value': lambda: next(iter2)}))
self.assertEqual(output2, '[0,1,2,3]', 'Expected [0,1,2,3] in second parallel template, got {0}'.format(output2))
yield 3
gen1 = gen()
output1 = template.render(Context({'foo': range(3), 'get_value': lambda: next(gen1)}))
self.assertEqual(output1, '[0,1,2,3]', 'Expected [0,1,2,3] in first template, got {0}'.format(output1))
def test_cache_regression_20130(self):
t = Template('{% load cache %}{% cache 1 regression_20130 %}foo{% endcache %}')
cachenode = t.nodelist[1]
self.assertEqual(cachenode.fragment_name, 'regression_20130')
@override_settings(CACHES={
'default': {
'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
'LOCATION': 'default',
},
'template_fragments': {
'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
'LOCATION': 'fragments',
},
})
def test_cache_fragment_cache(self):
"""
When a cache called "template_fragments" is present, the cache tag
will use it in preference to 'default'
"""
t1 = Template('{% load cache %}{% cache 1 fragment %}foo{% endcache %}')
t2 = Template('{% load cache %}{% cache 1 fragment using="default" %}bar{% endcache %}')
ctx = Context()
o1 = t1.render(ctx)
o2 = t2.render(ctx)
self.assertEqual(o1, 'foo')
self.assertNotEqual(o1, o2)
def test_cache_missing_backend(self):
"""
When a cache that doesn't exist is specified, the cache tag will
raise a TemplateSyntaxError
'"""
t = Template('{% load cache %}{% cache 1 backend using="unknown" %}bar{% endcache %}')
ctx = Context()
with self.assertRaises(TemplateSyntaxError):
t.render(ctx)
def test_ifchanged_render_once(self):
""" Test for ticket #19890. The content of ifchanged template tag was
rendered twice."""
template = Template('{% load cycle from future %}{% ifchanged %}{% cycle "1st time" "2nd time" %}{% endifchanged %}')
output = template.render(Context({}))
self.assertEqual(output, '1st time')
def test_super_errors(self):
"""
Test behavior of the raise errors into included blocks.
See #18169
"""
t = loader.get_template('included_content.html')
with self.assertRaises(urlresolvers.NoReverseMatch):
t.render(Context({}))
@override_settings(MEDIA_URL="/media/", STATIC_URL="/static/")
class TemplateTests(TransRealMixin, TestCase):
def test_templates(self):
template_tests = self.get_template_tests()
filter_tests = filters.get_filter_tests()
# Quickly check that we aren't accidentally using a name in both
# template and filter tests.
overlapping_names = [name for name in filter_tests if name in template_tests]
assert not overlapping_names, 'Duplicate test name(s): %s' % ', '.join(overlapping_names)
template_tests.update(filter_tests)
cache_loader = setup_test_template_loader(
dict((name, t[0]) for name, t in six.iteritems(template_tests)),
use_cached_loader=True,
)
failures = []
tests = sorted(template_tests.items())
# Turn TEMPLATE_DEBUG off, because tests assume that.
old_td, settings.TEMPLATE_DEBUG = settings.TEMPLATE_DEBUG, False
# Set TEMPLATE_STRING_IF_INVALID to a known string.
old_invalid = settings.TEMPLATE_STRING_IF_INVALID
expected_invalid_str = 'INVALID'
# Set ALLOWED_INCLUDE_ROOTS so that ssi works.
old_allowed_include_roots = settings.ALLOWED_INCLUDE_ROOTS
settings.ALLOWED_INCLUDE_ROOTS = (
os.path.dirname(os.path.abspath(upath(__file__))),
)
# Warm the URL reversing cache. This ensures we don't pay the cost
# warming the cache during one of the tests.
urlresolvers.reverse('template_tests.views.client_action',
kwargs={'id': 0, 'action': "update"})
for name, vals in tests:
if isinstance(vals[2], tuple):
normal_string_result = vals[2][0]
invalid_string_result = vals[2][1]
if isinstance(invalid_string_result, tuple):
expected_invalid_str = 'INVALID %s'
invalid_string_result = invalid_string_result[0] % invalid_string_result[1]
template_base.invalid_var_format_string = True
try:
template_debug_result = vals[2][2]
except IndexError:
template_debug_result = normal_string_result
else:
normal_string_result = vals[2]
invalid_string_result = vals[2]
template_debug_result = vals[2]
if 'LANGUAGE_CODE' in vals[1]:
activate(vals[1]['LANGUAGE_CODE'])
else:
activate('en-us')
for invalid_str, template_debug, result in [
('', False, normal_string_result),
(expected_invalid_str, False, invalid_string_result),
('', True, template_debug_result)
]:
settings.TEMPLATE_STRING_IF_INVALID = invalid_str
settings.TEMPLATE_DEBUG = template_debug
for is_cached in (False, True):
try:
try:
with warnings.catch_warnings():
# Ignore pending deprecations of the old syntax of the 'cycle' and 'firstof' tags.
warnings.filterwarnings("ignore", category=DeprecationWarning, module='django.template.base')
test_template = loader.get_template(name)
except ShouldNotExecuteException:
failures.append("Template test (Cached='%s', TEMPLATE_STRING_IF_INVALID='%s', TEMPLATE_DEBUG=%s): %s -- FAILED. Template loading invoked method that shouldn't have been invoked." % (is_cached, invalid_str, template_debug, name))
try:
output = self.render(test_template, vals)
except ShouldNotExecuteException:
failures.append("Template test (Cached='%s', TEMPLATE_STRING_IF_INVALID='%s', TEMPLATE_DEBUG=%s): %s -- FAILED. Template rendering invoked method that shouldn't have been invoked." % (is_cached, invalid_str, template_debug, name))
except ContextStackException:
failures.append("Template test (Cached='%s', TEMPLATE_STRING_IF_INVALID='%s', TEMPLATE_DEBUG=%s): %s -- FAILED. Context stack was left imbalanced" % (is_cached, invalid_str, template_debug, name))
continue
except Exception:
exc_type, exc_value, exc_tb = sys.exc_info()
if exc_type != result:
tb = '\n'.join(traceback.format_exception(exc_type, exc_value, exc_tb))
failures.append("Template test (Cached='%s', TEMPLATE_STRING_IF_INVALID='%s', TEMPLATE_DEBUG=%s): %s -- FAILED. Got %s, exception: %s\n%s" % (is_cached, invalid_str, template_debug, name, exc_type, exc_value, tb))
continue
if output != result:
failures.append("Template test (Cached='%s', TEMPLATE_STRING_IF_INVALID='%s', TEMPLATE_DEBUG=%s): %s -- FAILED. Expected %r, got %r" % (is_cached, invalid_str, template_debug, name, result, output))
cache_loader.reset()
if 'LANGUAGE_CODE' in vals[1]:
deactivate()
if template_base.invalid_var_format_string:
expected_invalid_str = 'INVALID'
template_base.invalid_var_format_string = False
restore_template_loaders()
deactivate()
settings.TEMPLATE_DEBUG = old_td
settings.TEMPLATE_STRING_IF_INVALID = old_invalid
settings.ALLOWED_INCLUDE_ROOTS = old_allowed_include_roots
self.assertEqual(failures, [], "Tests failed:\n%s\n%s" %
('-'*70, ("\n%s\n" % ('-'*70)).join(failures)))
def render(self, test_template, vals):
context = template.Context(vals[1])
before_stack_size = len(context.dicts)
output = test_template.render(context)
if len(context.dicts) != before_stack_size:
raise ContextStackException
return output
def get_template_tests(self):
# SYNTAX --
# 'template_name': ('template contents', 'context dict', 'expected string output' or Exception class)
basedir = os.path.dirname(os.path.abspath(upath(__file__)))
tests = {
### BASIC SYNTAX ################################################
# Plain text should go through the template parser untouched
'basic-syntax01': ("something cool", {}, "something cool"),
# Variables should be replaced with their value in the current
# context
'basic-syntax02': ("{{ headline }}", {'headline': 'Success'}, "Success"),
# More than one replacement variable is allowed in a template
'basic-syntax03': ("{{ first }} --- {{ second }}", {"first": 1, "second": 2}, "1 --- 2"),
# Fail silently when a variable is not found in the current context
'basic-syntax04': ("as{{ missing }}df", {}, ("asdf", "asINVALIDdf")),
# A variable may not contain more than one word
'basic-syntax06': ("{{ multi word variable }}", {}, template.TemplateSyntaxError),
# Raise TemplateSyntaxError for empty variable tags
'basic-syntax07': ("{{ }}", {}, template.TemplateSyntaxError),
'basic-syntax08': ("{{ }}", {}, template.TemplateSyntaxError),
# Attribute syntax allows a template to call an object's attribute
'basic-syntax09': ("{{ var.method }}", {"var": SomeClass()}, "SomeClass.method"),
# Multiple levels of attribute access are allowed
'basic-syntax10': ("{{ var.otherclass.method }}", {"var": SomeClass()}, "OtherClass.method"),
# Fail silently when a variable's attribute isn't found
'basic-syntax11': ("{{ var.blech }}", {"var": SomeClass()}, ("", "INVALID")),
# Raise TemplateSyntaxError when trying to access a variable beginning with an underscore
'basic-syntax12': ("{{ var.__dict__ }}", {"var": SomeClass()}, template.TemplateSyntaxError),
# Raise TemplateSyntaxError when trying to access a variable containing an illegal character
'basic-syntax13': ("{{ va>r }}", {}, template.TemplateSyntaxError),
'basic-syntax14': ("{{ (var.r) }}", {}, template.TemplateSyntaxError),
'basic-syntax15': ("{{ sp%am }}", {}, template.TemplateSyntaxError),
'basic-syntax16': ("{{ eggs! }}", {}, template.TemplateSyntaxError),
'basic-syntax17': ("{{ moo? }}", {}, template.TemplateSyntaxError),
# Attribute syntax allows a template to call a dictionary key's value
'basic-syntax18': ("{{ foo.bar }}", {"foo": {"bar": "baz"}}, "baz"),
# Fail silently when a variable's dictionary key isn't found
'basic-syntax19': ("{{ foo.spam }}", {"foo": {"bar": "baz"}}, ("", "INVALID")),
# Fail silently when accessing a non-simple method
'basic-syntax20': ("{{ var.method2 }}", {"var": SomeClass()}, ("", "INVALID")),
# Don't silence a TypeError if it was raised inside a callable
'basic-syntax20b': ("{{ var.method5 }}", {"var": SomeClass()}, TypeError),
# Don't get confused when parsing something that is almost, but not
# quite, a template tag.
'basic-syntax21': ("a {{ moo %} b", {}, "a {{ moo %} b"),
'basic-syntax22': ("{{ moo #}", {}, "{{ moo #}"),
# Will try to treat "moo #} {{ cow" as the variable. Not ideal, but
# costly to work around, so this triggers an error.
'basic-syntax23': ("{{ moo #} {{ cow }}", {"cow": "cow"}, template.TemplateSyntaxError),
# Embedded newlines make it not-a-tag.
'basic-syntax24': ("{{ moo\n }}", {}, "{{ moo\n }}"),
# Literal strings are permitted inside variables, mostly for i18n
# purposes.
'basic-syntax25': ('{{ "fred" }}', {}, "fred"),
'basic-syntax26': (r'{{ "\"fred\"" }}', {}, "\"fred\""),
'basic-syntax27': (r'{{ _("\"fred\"") }}', {}, "\"fred\""),
# regression test for ticket #12554
# make sure a silent_variable_failure Exception is supressed
# on dictionary and attribute lookup
'basic-syntax28': ("{{ a.b }}", {'a': SilentGetItemClass()}, ('', 'INVALID')),
'basic-syntax29': ("{{ a.b }}", {'a': SilentAttrClass()}, ('', 'INVALID')),
# Something that starts like a number but has an extra lookup works as a lookup.
'basic-syntax30': ("{{ 1.2.3 }}", {"1": {"2": {"3": "d"}}}, "d"),
'basic-syntax31': ("{{ 1.2.3 }}", {"1": {"2": ("a", "b", "c", "d")}}, "d"),
'basic-syntax32': ("{{ 1.2.3 }}", {"1": (("x", "x", "x", "x"), ("y", "y", "y", "y"), ("a", "b", "c", "d"))}, "d"),
'basic-syntax33': ("{{ 1.2.3 }}", {"1": ("xxxx", "yyyy", "abcd")}, "d"),
'basic-syntax34': ("{{ 1.2.3 }}", {"1": ({"x": "x"}, {"y": "y"}, {"z": "z", "3": "d"})}, "d"),
# Numbers are numbers even if their digits are in the context.
'basic-syntax35': ("{{ 1 }}", {"1": "abc"}, "1"),
'basic-syntax36': ("{{ 1.2 }}", {"1": "abc"}, "1.2"),
# Call methods in the top level of the context
'basic-syntax37': ('{{ callable }}', {"callable": lambda: "foo bar"}, "foo bar"),
# Call methods returned from dictionary lookups
'basic-syntax38': ('{{ var.callable }}', {"var": {"callable": lambda: "foo bar"}}, "foo bar"),
'builtins01': ('{{ True }}', {}, "True"),
'builtins02': ('{{ False }}', {}, "False"),
'builtins03': ('{{ None }}', {}, "None"),
# List-index syntax allows a template to access a certain item of a subscriptable object.
'list-index01': ("{{ var.1 }}", {"var": ["first item", "second item"]}, "second item"),
# Fail silently when the list index is out of range.
'list-index02': ("{{ var.5 }}", {"var": ["first item", "second item"]}, ("", "INVALID")),
# Fail silently when the variable is not a subscriptable object.
'list-index03': ("{{ var.1 }}", {"var": None}, ("", "INVALID")),
# Fail silently when variable is a dict without the specified key.
'list-index04': ("{{ var.1 }}", {"var": {}}, ("", "INVALID")),
# Dictionary lookup wins out when dict's key is a string.
'list-index05': ("{{ var.1 }}", {"var": {'1': "hello"}}, "hello"),
# But list-index lookup wins out when dict's key is an int, which
# behind the scenes is really a dictionary lookup (for a dict)
# after converting the key to an int.
'list-index06': ("{{ var.1 }}", {"var": {1: "hello"}}, "hello"),
# Dictionary lookup wins out when there is a string and int version of the key.
'list-index07': ("{{ var.1 }}", {"var": {'1': "hello", 1: "world"}}, "hello"),
# Basic filter usage
'filter-syntax01': ("{{ var|upper }}", {"var": "Django is the greatest!"}, "DJANGO IS THE GREATEST!"),
# Chained filters
'filter-syntax02': ("{{ var|upper|lower }}", {"var": "Django is the greatest!"}, "django is the greatest!"),
# Allow spaces before the filter pipe
'filter-syntax03': ("{{ var |upper }}", {"var": "Django is the greatest!"}, "DJANGO IS THE GREATEST!"),
# Allow spaces after the filter pipe
'filter-syntax04': ("{{ var| upper }}", {"var": "Django is the greatest!"}, "DJANGO IS THE GREATEST!"),
# Raise TemplateSyntaxError for a nonexistent filter
'filter-syntax05': ("{{ var|does_not_exist }}", {}, template.TemplateSyntaxError),
# Raise TemplateSyntaxError when trying to access a filter containing an illegal character
'filter-syntax06': ("{{ var|fil(ter) }}", {}, template.TemplateSyntaxError),
# Raise TemplateSyntaxError for invalid block tags
'filter-syntax07': ("{% nothing_to_see_here %}", {}, template.TemplateSyntaxError),
# Raise TemplateSyntaxError for empty block tags
'filter-syntax08': ("{% %}", {}, template.TemplateSyntaxError),
# Chained filters, with an argument to the first one
'filter-syntax09': ('{{ var|removetags:"b i"|upper|lower }}', {"var": "<b><i>Yes</i></b>"}, "yes"),
# Literal string as argument is always "safe" from auto-escaping..
'filter-syntax10': (r'{{ var|default_if_none:" endquote\" hah" }}',
{"var": None}, ' endquote" hah'),
# Variable as argument
'filter-syntax11': (r'{{ var|default_if_none:var2 }}', {"var": None, "var2": "happy"}, 'happy'),
# Default argument testing
'filter-syntax12': (r'{{ var|yesno:"yup,nup,mup" }} {{ var|yesno }}', {"var": True}, 'yup yes'),
# Fail silently for methods that raise an exception with a
# "silent_variable_failure" attribute
'filter-syntax13': (r'1{{ var.method3 }}2', {"var": SomeClass()}, ("12", "1INVALID2")),
# In methods that raise an exception without a
# "silent_variable_attribute" set to True, the exception propagates
'filter-syntax14': (r'1{{ var.method4 }}2', {"var": SomeClass()}, (SomeOtherException, SomeOtherException)),
# Escaped backslash in argument
'filter-syntax15': (r'{{ var|default_if_none:"foo\bar" }}', {"var": None}, r'foo\bar'),
# Escaped backslash using known escape char
'filter-syntax16': (r'{{ var|default_if_none:"foo\now" }}', {"var": None}, r'foo\now'),
# Empty strings can be passed as arguments to filters
'filter-syntax17': (r'{{ var|join:"" }}', {'var': ['a', 'b', 'c']}, 'abc'),
# Make sure that any unicode strings are converted to bytestrings
# in the final output.
'filter-syntax18': (r'{{ var }}', {'var': UTF8Class()}, '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111'),
# Numbers as filter arguments should work
'filter-syntax19': ('{{ var|truncatewords:1 }}', {"var": "hello world"}, "hello ..."),
#filters should accept empty string constants
'filter-syntax20': ('{{ ""|default_if_none:"was none" }}', {}, ""),
# Fail silently for non-callable attribute and dict lookups which
# raise an exception with a "silent_variable_failure" attribute
'filter-syntax21': (r'1{{ var.silent_fail_key }}2', {"var": SomeClass()}, ("12", "1INVALID2")),
'filter-syntax22': (r'1{{ var.silent_fail_attribute }}2', {"var": SomeClass()}, ("12", "1INVALID2")),
# In attribute and dict lookups that raise an unexpected exception
# without a "silent_variable_attribute" set to True, the exception
# propagates
'filter-syntax23': (r'1{{ var.noisy_fail_key }}2', {"var": SomeClass()}, (SomeOtherException, SomeOtherException)),
'filter-syntax24': (r'1{{ var.noisy_fail_attribute }}2', {"var": SomeClass()}, (SomeOtherException, SomeOtherException)),
### COMMENT SYNTAX ########################################################
'comment-syntax01': ("{# this is hidden #}hello", {}, "hello"),
'comment-syntax02': ("{# this is hidden #}hello{# foo #}", {}, "hello"),
# Comments can contain invalid stuff.
'comment-syntax03': ("foo{# {% if %} #}", {}, "foo"),
'comment-syntax04': ("foo{# {% endblock %} #}", {}, "foo"),
'comment-syntax05': ("foo{# {% somerandomtag %} #}", {}, "foo"),
'comment-syntax06': ("foo{# {% #}", {}, "foo"),
'comment-syntax07': ("foo{# %} #}", {}, "foo"),
'comment-syntax08': ("foo{# %} #}bar", {}, "foobar"),
'comment-syntax09': ("foo{# {{ #}", {}, "foo"),
'comment-syntax10': ("foo{# }} #}", {}, "foo"),
'comment-syntax11': ("foo{# { #}", {}, "foo"),
'comment-syntax12': ("foo{# } #}", {}, "foo"),
### COMMENT TAG ###########################################################
'comment-tag01': ("{% comment %}this is hidden{% endcomment %}hello", {}, "hello"),
'comment-tag02': ("{% comment %}this is hidden{% endcomment %}hello{% comment %}foo{% endcomment %}", {}, "hello"),
# Comment tag can contain invalid stuff.
'comment-tag03': ("foo{% comment %} {% if %} {% endcomment %}", {}, "foo"),
'comment-tag04': ("foo{% comment %} {% endblock %} {% endcomment %}", {}, "foo"),
'comment-tag05': ("foo{% comment %} {% somerandomtag %} {% endcomment %}", {}, "foo"),
### CYCLE TAG #############################################################
'cycle01': ('{% cycle a %}', {}, template.TemplateSyntaxError),
'cycle02': ('{% cycle a,b,c as abc %}{% cycle abc %}', {}, 'ab'),
'cycle03': ('{% cycle a,b,c as abc %}{% cycle abc %}{% cycle abc %}', {}, 'abc'),
'cycle04': ('{% cycle a,b,c as abc %}{% cycle abc %}{% cycle abc %}{% cycle abc %}', {}, 'abca'),
'cycle05': ('{% cycle %}', {}, template.TemplateSyntaxError),
'cycle06': ('{% cycle a %}', {}, template.TemplateSyntaxError),
'cycle07': ('{% cycle a,b,c as foo %}{% cycle bar %}', {}, template.TemplateSyntaxError),
'cycle08': ('{% cycle a,b,c as foo %}{% cycle foo %}{{ foo }}{{ foo }}{% cycle foo %}{{ foo }}', {}, 'abbbcc'),
'cycle09': ("{% for i in test %}{% cycle a,b %}{{ i }},{% endfor %}", {'test': range(5)}, 'a0,b1,a2,b3,a4,'),
'cycle10': ("{% cycle 'a' 'b' 'c' as abc %}{% cycle abc %}", {}, 'ab'),
'cycle11': ("{% cycle 'a' 'b' 'c' as abc %}{% cycle abc %}{% cycle abc %}", {}, 'abc'),
'cycle12': ("{% cycle 'a' 'b' 'c' as abc %}{% cycle abc %}{% cycle abc %}{% cycle abc %}", {}, 'abca'),
'cycle13': ("{% for i in test %}{% cycle 'a' 'b' %}{{ i }},{% endfor %}", {'test': range(5)}, 'a0,b1,a2,b3,a4,'),
'cycle14': ("{% cycle one two as foo %}{% cycle foo %}", {'one': '1', 'two': '2'}, '12'),
'cycle15': ("{% for i in test %}{% cycle aye bee %}{{ i }},{% endfor %}", {'test': range(5), 'aye': 'a', 'bee': 'b'}, 'a0,b1,a2,b3,a4,'),
'cycle16': ("{% cycle one|lower two as foo %}{% cycle foo %}", {'one': 'A', 'two': '2'}, 'a2'),
'cycle17': ("{% cycle 'a' 'b' 'c' as abc silent %}{% cycle abc %}{% cycle abc %}{% cycle abc %}{% cycle abc %}", {}, ""),
'cycle18': ("{% cycle 'a' 'b' 'c' as foo invalid_flag %}", {}, template.TemplateSyntaxError),
'cycle19': ("{% cycle 'a' 'b' as silent %}{% cycle silent %}", {}, "ab"),
'cycle20': ("{% cycle one two as foo %} & {% cycle foo %}", {'one': 'A & B', 'two': 'C & D'}, "A & B & C & D"),
'cycle21': ("{% filter force_escape %}{% cycle one two as foo %} & {% cycle foo %}{% endfilter %}", {'one': 'A & B', 'two': 'C & D'}, "A & B & C & D"),
'cycle22': ("{% for x in values %}{% cycle 'a' 'b' 'c' as abc silent %}{{ x }}{% endfor %}", {'values': [1, 2, 3, 4]}, "1234"),
'cycle23': ("{% for x in values %}{% cycle 'a' 'b' 'c' as abc silent %}{{ abc }}{{ x }}{% endfor %}", {'values': [1, 2, 3, 4]}, "a1b2c3a4"),
'included-cycle': ('{{ abc }}', {'abc': 'xxx'}, 'xxx'),
'cycle24': ("{% for x in values %}{% cycle 'a' 'b' 'c' as abc silent %}{% include 'included-cycle' %}{% endfor %}", {'values': [1, 2, 3, 4]}, "abca"),
'cycle25': ('{% cycle a as abc %}', {'a': '<'}, '<'),
'cycle26': ('{% load cycle from future %}{% cycle a b as ab %}{% cycle ab %}', {'a': '<', 'b': '>'}, '<>'),
'cycle27': ('{% load cycle from future %}{% autoescape off %}{% cycle a b as ab %}{% cycle ab %}{% endautoescape %}', {'a': '<', 'b': '>'}, '<>'),
'cycle28': ('{% load cycle from future %}{% cycle a|safe b as ab %}{% cycle ab %}', {'a': '<', 'b': '>'}, '<>'),
### EXCEPTIONS ############################################################
# Raise exception for invalid template name
'exception01': ("{% extends 'nonexistent' %}", {}, (template.TemplateDoesNotExist, template.TemplateDoesNotExist)),
# Raise exception for invalid template name (in variable)
'exception02': ("{% extends nonexistent %}", {}, (template.TemplateSyntaxError, template.TemplateDoesNotExist)),
# Raise exception for extra {% extends %} tags
'exception03': ("{% extends 'inheritance01' %}{% block first %}2{% endblock %}{% extends 'inheritance16' %}", {}, template.TemplateSyntaxError),
# Raise exception for custom tags used in child with {% load %} tag in parent, not in child
'exception04': ("{% extends 'inheritance17' %}{% block first %}{% echo 400 %}5678{% endblock %}", {}, template.TemplateSyntaxError),
### FILTER TAG ############################################################
'filter01': ('{% filter upper %}{% endfilter %}', {}, ''),
'filter02': ('{% filter upper %}django{% endfilter %}', {}, 'DJANGO'),
'filter03': ('{% filter upper|lower %}django{% endfilter %}', {}, 'django'),
'filter04': ('{% filter cut:remove %}djangospam{% endfilter %}', {'remove': 'spam'}, 'django'),
'filter05': ('{% filter safe %}fail{% endfilter %}', {}, template.TemplateSyntaxError),
'filter05bis': ('{% filter upper|safe %}fail{% endfilter %}', {}, template.TemplateSyntaxError),
'filter06': ('{% filter escape %}fail{% endfilter %}', {}, template.TemplateSyntaxError),
'filter06bis': ('{% filter upper|escape %}fail{% endfilter %}', {}, template.TemplateSyntaxError),
### FIRSTOF TAG ###########################################################
'firstof01': ('{% firstof a b c %}', {'a': 0, 'b': 0, 'c': 0}, ''),
'firstof02': ('{% firstof a b c %}', {'a': 1, 'b': 0, 'c': 0}, '1'),
'firstof03': ('{% firstof a b c %}', {'a': 0, 'b': 2, 'c': 0}, '2'),
'firstof04': ('{% firstof a b c %}', {'a': 0, 'b': 0, 'c': 3}, '3'),
'firstof05': ('{% firstof a b c %}', {'a': 1, 'b': 2, 'c': 3}, '1'),
'firstof06': ('{% firstof a b c %}', {'b': 0, 'c': 3}, '3'),
'firstof07': ('{% firstof a b "c" %}', {'a': 0}, 'c'),
'firstof08': ('{% firstof a b "c and d" %}', {'a': 0, 'b': 0}, 'c and d'),
'firstof09': ('{% firstof %}', {}, template.TemplateSyntaxError),
'firstof10': ('{% firstof a %}', {'a': '<'}, '<'),
'firstof11': ('{% load firstof from future %}{% firstof a b %}', {'a': '<', 'b': '>'}, '<'),
'firstof12': ('{% load firstof from future %}{% firstof a b %}', {'a': '', 'b': '>'}, '>'),
'firstof13': ('{% load firstof from future %}{% autoescape off %}{% firstof a %}{% endautoescape %}', {'a': '<'}, '<'),
'firstof14': ('{% load firstof from future %}{% firstof a|safe b %}', {'a': '<'}, '<'),
### FOR TAG ###############################################################
'for-tag01': ("{% for val in values %}{{ val }}{% endfor %}", {"values": [1, 2, 3]}, "123"),
'for-tag02': ("{% for val in values reversed %}{{ val }}{% endfor %}", {"values": [1, 2, 3]}, "321"),
'for-tag-vars01': ("{% for val in values %}{{ forloop.counter }}{% endfor %}", {"values": [6, 6, 6]}, "123"),
'for-tag-vars02': ("{% for val in values %}{{ forloop.counter0 }}{% endfor %}", {"values": [6, 6, 6]}, "012"),
'for-tag-vars03': ("{% for val in values %}{{ forloop.revcounter }}{% endfor %}", {"values": [6, 6, 6]}, "321"),
'for-tag-vars04': ("{% for val in values %}{{ forloop.revcounter0 }}{% endfor %}", {"values": [6, 6, 6]}, "210"),
'for-tag-vars05': ("{% for val in values %}{% if forloop.first %}f{% else %}x{% endif %}{% endfor %}", {"values": [6, 6, 6]}, "fxx"),
'for-tag-vars06': ("{% for val in values %}{% if forloop.last %}l{% else %}x{% endif %}{% endfor %}", {"values": [6, 6, 6]}, "xxl"),
'for-tag-unpack01': ("{% for key,value in items %}{{ key }}:{{ value }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, "one:1/two:2/"),
'for-tag-unpack03': ("{% for key, value in items %}{{ key }}:{{ value }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, "one:1/two:2/"),
'for-tag-unpack04': ("{% for key , value in items %}{{ key }}:{{ value }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, "one:1/two:2/"),
'for-tag-unpack05': ("{% for key ,value in items %}{{ key }}:{{ value }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, "one:1/two:2/"),
'for-tag-unpack06': ("{% for key value in items %}{{ key }}:{{ value }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, template.TemplateSyntaxError),
'for-tag-unpack07': ("{% for key,,value in items %}{{ key }}:{{ value }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, template.TemplateSyntaxError),
'for-tag-unpack08': ("{% for key,value, in items %}{{ key }}:{{ value }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, template.TemplateSyntaxError),
# Ensure that a single loopvar doesn't truncate the list in val.
'for-tag-unpack09': ("{% for val in items %}{{ val.0 }}:{{ val.1 }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, "one:1/two:2/"),
# Otherwise, silently truncate if the length of loopvars differs to the length of each set of items.
'for-tag-unpack10': ("{% for x,y in items %}{{ x }}:{{ y }}/{% endfor %}", {"items": (('one', 1, 'carrot'), ('two', 2, 'orange'))}, "one:1/two:2/"),
'for-tag-unpack11': ("{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}", {"items": (('one', 1), ('two', 2))}, ("one:1,/two:2,/", "one:1,INVALID/two:2,INVALID/")),
'for-tag-unpack12': ("{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}", {"items": (('one', 1, 'carrot'), ('two', 2))}, ("one:1,carrot/two:2,/", "one:1,carrot/two:2,INVALID/")),
'for-tag-unpack13': ("{% for x,y,z in items %}{{ x }}:{{ y }},{{ z }}/{% endfor %}", {"items": (('one', 1, 'carrot'), ('two', 2, 'cheese'))}, ("one:1,carrot/two:2,cheese/", "one:1,carrot/two:2,cheese/")),
'for-tag-unpack14': ("{% for x,y in items %}{{ x }}:{{ y }}/{% endfor %}", {"items": (1, 2)}, (":/:/", "INVALID:INVALID/INVALID:INVALID/")),
'for-tag-empty01': ("{% for val in values %}{{ val }}{% empty %}empty text{% endfor %}", {"values": [1, 2, 3]}, "123"),
'for-tag-empty02': ("{% for val in values %}{{ val }}{% empty %}values array empty{% endfor %}", {"values": []}, "values array empty"),
'for-tag-empty03': ("{% for val in values %}{{ val }}{% empty %}values array not found{% endfor %}", {}, "values array not found"),
# Ticket 19882
'for-tag-filter-ws': ("{% load custom %}{% for x in s|noop:'x y' %}{{ x }}{% endfor %}", {'s': 'abc'}, 'abc'),
### IF TAG ################################################################
'if-tag01': ("{% if foo %}yes{% else %}no{% endif %}", {"foo": True}, "yes"),
'if-tag02': ("{% if foo %}yes{% else %}no{% endif %}", {"foo": False}, "no"),
'if-tag03': ("{% if foo %}yes{% else %}no{% endif %}", {}, "no"),
'if-tag04': ("{% if foo %}foo{% elif bar %}bar{% endif %}", {'foo': True}, "foo"),
'if-tag05': ("{% if foo %}foo{% elif bar %}bar{% endif %}", {'bar': True}, "bar"),
'if-tag06': ("{% if foo %}foo{% elif bar %}bar{% endif %}", {}, ""),
'if-tag07': ("{% if foo %}foo{% elif bar %}bar{% else %}nothing{% endif %}", {'foo': True}, "foo"),
'if-tag08': ("{% if foo %}foo{% elif bar %}bar{% else %}nothing{% endif %}", {'bar': True}, "bar"),
'if-tag09': ("{% if foo %}foo{% elif bar %}bar{% else %}nothing{% endif %}", {}, "nothing"),
'if-tag10': ("{% if foo %}foo{% elif bar %}bar{% elif baz %}baz{% else %}nothing{% endif %}", {'foo': True}, "foo"),
'if-tag11': ("{% if foo %}foo{% elif bar %}bar{% elif baz %}baz{% else %}nothing{% endif %}", {'bar': True}, "bar"),
'if-tag12': ("{% if foo %}foo{% elif bar %}bar{% elif baz %}baz{% else %}nothing{% endif %}", {'baz': True}, "baz"),
'if-tag13': ("{% if foo %}foo{% elif bar %}bar{% elif baz %}baz{% else %}nothing{% endif %}", {}, "nothing"),