django/tests/template_tests/tests.py

# -*- coding: utf-8 -*-
from __future__ import absolute_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, timedelta
import time
import os
import sys
import traceback
try:
    from urllib.parse import urljoin
except ImportError:     # Python 2
    from urlparse import urljoin
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)
from django.utils import unittest
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, ugettext as _
from django.utils.safestring import mark_safe
from django.utils import six
from django.utils.tzinfo import LocalTimezone

from .test_callables import CallableVariablesTests
from .test_context import ContextTests
from .test_custom import CustomTagTests, CustomFilterTests
from .test_parser import ParserTests
from .test_unicode import UnicodeTests
from .test_nodelist import NodelistTest, ErrorIndexTest
from .test_smartif import SmartIfTests
from .test_response import (TemplateResponseTest, CacheMiddlewareTest,
    SimpleTemplateResponseTest, CustomURLConfTest)

try:
    from .loaders import RenderToStringTest, EggLoaderTest
except ImportError as e:
    if "pkg_resources" in e.args[0]:
        pass # If setuptools isn't installed, that's fine. Just move on.
    else:
        raise

# 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 __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'

@override_settings(MEDIA_URL="/media/", STATIC_URL="/static/")
class Templates(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'])

    def test_loader_debug_origin(self):
        # Turn TEMPLATE_DEBUG on, so that the origin file name will be kept with
        # the compiled templates.
        old_td, settings.TEMPLATE_DEBUG = settings.TEMPLATE_DEBUG, True
        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
            settings.TEMPLATE_DEBUG = old_td


    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.
        """

        # TEMPLATE_DEBUG must be true, otherwise the exception raised
        # during {% include %} processing will be suppressed.
        old_td, settings.TEMPLATE_DEBUG = settings.TEMPLATE_DEBUG, True
        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:
                settings.TEMPLATE_DEBUG = old_td
                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
            settings.TEMPLATE_DEBUG = old_td


    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.
        """

        # TEMPLATE_DEBUG must be true, otherwise the exception raised
        # during {% include %} processing will be suppressed.
        old_td, settings.TEMPLATE_DEBUG = settings.TEMPLATE_DEBUG, True
        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:
                settings.TEMPLATE_DEBUG = old_td
                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
            settings.TEMPLATE_DEBUG = old_td

    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_td, settings.TEMPLATE_DEBUG = settings.TEMPLATE_DEBUG, True
        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
            settings.TEMPLATE_DEBUG = old_td

    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."):
            t = 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:
            t = 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')

    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_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=PendingDeprecationWarning, 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 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 %} &amp; {% cycle foo %}", {'one' : 'A & B', 'two' : 'C & D'}, "A & B &amp; C & D"),
            'cycle21': ("{% filter force_escape %}{% cycle one two as foo %} & {% cycle foo %}{% endfilter %}", {'one' : 'A & B', 'two' : 'C & D'}, "A &amp; B &amp; C &amp; 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': '>'}, '&lt;&gt;'),
            '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': '>'}, '<&gt;'),

            ### 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'),

            ### 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': '>'}, '&lt;'),
            'firstof12': ('{% load firstof from future %}{% firstof a b %}', {'a': '', 'b': '>'}, '&gt;'),
            '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"),

            # Filters
            'if-tag-filter01': ("{% if foo|length == 5 %}yes{% else %}no{% endif %}", {'foo': 'abcde'}, "yes"),
            'if-tag-filter02': ("{% if foo|upper == 'ABC' %}yes{% else %}no{% endif %}", {}, "no"),

            # Equality
            'if-tag-eq01': ("{% if foo == bar %}yes{% else %}no{% endif %}", {}, "yes"),
            'if-tag-eq02': ("{% if foo == bar %}yes{% else %}no{% endif %}", {'foo': 1}, "no"),
            'if-tag-eq03': ("{% if foo == bar %}yes{% else %}no{% endif %}", {'foo': 1, 'bar': 1}, "yes"),
            'if-tag-eq04': ("{% if foo == bar %}yes{% else %}no{% endif %}", {'foo': 1, 'bar': 2}, "no"),
            'if-tag-eq05': ("{% if foo == '' %}yes{% else %}no{% endif %}", {}, "no"),

            # Comparison
            'if-tag-gt-01': ("{% if 2 > 1 %}yes{% else %}no{% endif %}", {}, "yes"),
            'if-tag-gt-02': ("{% if 1 > 1 %}yes{% else %}no{% endif %}", {}, "no"),
            'if-tag-gte-01': ("{% if 1 >= 1 %}yes{% else %}no{% endif %}", {}, "yes"),
            'if-tag-gte-02': ("{% if 1 >= 2 %}yes{% else %}no{% endif %}", {}, "no"),
            'if-tag-lt-01': ("{% if 1 < 2 %}yes{% else %}no{% endif %}", {}, "yes"),
            'if-tag-lt-02': ("{% if 1 < 1 %}yes{% else %}no{% endif %}", {}, "no"),
            'if-tag-lte-01': ("{% if 1 <= 1 %}yes{% else %}no{% endif %}", {}, "yes"),
            'if-tag-lte-02': ("{% if 2 <= 1 %}yes{% else %}no{% endif %}", {}, "no"),

            # Contains
            'if-tag-in-01': ("{% if 1 in x %}yes{% else %}no{% endif %}", {'x':[1]}, "yes"),
            'if-tag-in-02': ("{% if 2 in x %}yes{% else %}no{% endif %}", {'x':[1]}, "no"),
            'if-tag-not-in-01': ("{% if 1 not in x %}yes{% else %}no{% endif %}", {'x':[1]}, "no"),
            'if-tag-not-in-02': ("{% if 2 not in x %}yes{% else %}no{% endif %}", {'x':[1]}, "yes"),

            # AND
            'if-tag-and01': ("{% if foo and bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': True}, 'yes'),
            'if-tag-and02': ("{% if foo and bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': False}, 'no'),
            'if-tag-and03': ("{% if foo and bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': True}, 'no'),
            'if-tag-and04': ("{% if foo and bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': False}, 'no'),
            'if-tag-and05': ("{% if foo and bar %}yes{% else %}no{% endif %}", {'foo': False}, 'no'),
            'if-tag-and06': ("{% if foo and bar %}yes{% else %}no{% endif %}", {'bar': False}, 'no'),
            'if-tag-and07': ("{% if foo and bar %}yes{% else %}no{% endif %}", {'foo': True}, 'no'),
            'if-tag-and08': ("{% if foo and bar %}yes{% else %}no{% endif %}", {'bar': True}, 'no'),

            # OR
            'if-tag-or01': ("{% if foo or bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': True}, 'yes'),
            'if-tag-or02': ("{% if foo or bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': False}, 'yes'),
            'if-tag-or03': ("{% if foo or bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': True}, 'yes'),
            'if-tag-or04': ("{% if foo or bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': False}, 'no'),
            'if-tag-or05': ("{% if foo or bar %}yes{% else %}no{% endif %}", {'foo': False}, 'no'),
            'if-tag-or06': ("{% if foo or bar %}yes{% else %}no{% endif %}", {'bar': False}, 'no'),
            'if-tag-or07': ("{% if foo or bar %}yes{% else %}no{% endif %}", {'foo': True}, 'yes'),
            'if-tag-or08': ("{% if foo or bar %}yes{% else %}no{% endif %}", {'bar': True}, 'yes'),

            # multiple ORs
            'if-tag-or09': ("{% if foo or bar or baz %}yes{% else %}no{% endif %}", {'baz': True}, 'yes'),

            # NOT
            'if-tag-not01': ("{% if not foo %}no{% else %}yes{% endif %}", {'foo': True}, 'yes'),
            'if-tag-not02': ("{% if not not foo %}no{% else %}yes{% endif %}", {'foo': True}, 'no'),
            # not03 to not05 removed, now TemplateSyntaxErrors

            'if-tag-not06': ("{% if foo and not bar %}yes{% else %}no{% endif %}", {}, 'no'),
            'if-tag-not07': ("{% if foo and not bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': True}, 'no'),
            'if-tag-not08': ("{% if foo and not bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': False}, 'yes'),
            'if-tag-not09': ("{% if foo and not bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': True}, 'no'),
            'if-tag-not10': ("{% if foo and not bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': False}, 'no'),

            'if-tag-not11': ("{% if not foo and bar %}yes{% else %}no{% endif %}", {}, 'no'),
            'if-tag-not12': ("{% if not foo and bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': True}, 'no'),
            'if-tag-not13': ("{% if not foo and bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': False}, 'no'),
            'if-tag-not14': ("{% if not foo and bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': True}, 'yes'),
            'if-tag-not15': ("{% if not foo and bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': False}, 'no'),

            'if-tag-not16': ("{% if foo or not bar %}yes{% else %}no{% endif %}", {}, 'yes'),
            'if-tag-not17': ("{% if foo or not bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': True}, 'yes'),
            'if-tag-not18': ("{% if foo or not bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': False}, 'yes'),
            'if-tag-not19': ("{% if foo or not bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': True}, 'no'),
            'if-tag-not20': ("{% if foo or not bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': False}, 'yes'),

            'if-tag-not21': ("{% if not foo or bar %}yes{% else %}no{% endif %}", {}, 'yes'),
            'if-tag-not22': ("{% if not foo or bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': True}, 'yes'),
            'if-tag-not23': ("{% if not foo or bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': False}, 'no'),
            'if-tag-not24': ("{% if not foo or bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': True}, 'yes'),
            'if-tag-not25': ("{% if not foo or bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': False}, 'yes'),

            'if-tag-not26': ("{% if not foo and not bar %}yes{% else %}no{% endif %}", {}, 'yes'),
            'if-tag-not27': ("{% if not foo and not bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': True}, 'no'),
            'if-tag-not28': ("{% if not foo and not bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': False}, 'no'),
            'if-tag-not29': ("{% if not foo and not bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': True}, 'no'),
            'if-tag-not30': ("{% if not foo and not bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': False}, 'yes'),

            'if-tag-not31': ("{% if not foo or not bar %}yes{% else %}no{% endif %}", {}, 'yes'),
            'if-tag-not32': ("{% if not foo or not bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': True}, 'no'),
            'if-tag-not33': ("{% if not foo or not bar %}yes{% else %}no{% endif %}", {'foo': True, 'bar': False}, 'yes'),
            'if-tag-not34': ("{% if not foo or not bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': True}, 'yes'),
            'if-tag-not35': ("{% if not foo or not bar %}yes{% else %}no{% endif %}", {'foo': False, 'bar': False}, 'yes'),

            # Various syntax errors
            'if-tag-error01': ("{% if %}yes{% endif %}", {}, template.TemplateSyntaxError),
            'if-tag-error02': ("{% if foo and %}yes{% else %}no{% endif %}", {'foo': True}, template.TemplateSyntaxError),
            'if-tag-error03': ("{% if foo or %}yes{% else %}no{% endif %}", {'foo': True}, template.TemplateSyntaxError),
            'if-tag-error04': ("{% if not foo and %}yes{% else %}no{% endif %}", {'foo': True}, template.TemplateSyntaxError),
            'if-tag-error05': ("{% if not foo or %}yes{% else %}no{% endif %}", {'foo': True}, template.TemplateSyntaxError),
            'if-tag-error06': ("{% if abc def %}yes{% endif %}", {}, template.TemplateSyntaxError),
            'if-tag-error07': ("{% if not %}yes{% endif %}", {}, template.TemplateSyntaxError),
            'if-tag-error08': ("{% if and %}yes{% endif %}", {}, template.TemplateSyntaxError),
            'if-tag-error09': ("{% if or %}yes{% endif %}", {}, template.TemplateSyntaxError),
            'if-tag-error10': ("{% if == %}yes{% endif %}", {}, template.TemplateSyntaxError),
            'if-tag-error11': ("{% if 1 == %}yes{% endif %}", {}, template.TemplateSyntaxError),
            'if-tag-error12': ("{% if a not b %}yes{% endif %}", {}, template.TemplateSyntaxError),

            # If evaluations are shortcircuited where possible
            # If is_bad is invoked, it will raise a ShouldNotExecuteException
            'if-tag-shortcircuit01': ('{% if x.is_true or x.is_bad %}yes{% else %}no{% endif %}', {'x': TestObj()}, "yes"),
            'if-tag-shortcircuit02': ('{% if x.is_false and x.is_bad %}yes{% else %}no{% endif %}', {'x': TestObj()}, "no"),

            # Non-existent args
            'if-tag-badarg01':("{% if x|default_if_none:y %}yes{% endif %}", {}, ''),
            'if-tag-badarg02':("{% if x|default_if_none:y %}yes{% endif %}", {'y': 0}, ''),
            'if-tag-badarg03':("{% if x|default_if_none:y %}yes{% endif %}", {'y': 1}, 'yes'),
            'if-tag-badarg04':("{% if x|default_if_none:y %}yes{% else %}no{% endif %}", {}, 'no'),

            # Additional, more precise parsing tests are in SmartIfTests

            ### IFCHANGED TAG #########################################################
            'ifchanged01': ('{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% endfor %}', {'num': (1,2,3)}, '123'),
            'ifchanged02': ('{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% endfor %}', {'num': (1,1,3)}, '13'),
            'ifchanged03': ('{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% endfor %}', {'num': (1,1,1)}, '1'),
            'ifchanged04': ('{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% for x in numx %}{% ifchanged %}{{ x }}{% endifchanged %}{% endfor %}{% endfor %}', {'num': (1, 2, 3), 'numx': (2, 2, 2)}, '122232'),
            'ifchanged05': ('{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% for x in numx %}{% ifchanged %}{{ x }}{% endifchanged %}{% endfor %}{% endfor %}', {'num': (1, 1, 1), 'numx': (1, 2, 3)}, '1123123123'),
            'ifchanged06': ('{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% for x in numx %}{% ifchanged %}{{ x }}{% endifchanged %}{% endfor %}{% endfor %}', {'num': (1, 1, 1), 'numx': (2, 2, 2)}, '1222'),
            'ifchanged07': ('{% for n in num %}{% ifchanged %}{{ n }}{% endifchanged %}{% for x in numx %}{% ifchanged %}{{ x }}{% endifchanged %}{% for y in numy %}{% ifchanged %}{{ y }}{% endifchanged %}{% endfor %}{% endfor %}{% endfor %}', {'num': (1, 1, 1), 'numx': (2, 2, 2), 'numy': (3, 3, 3)}, '1233323332333'),
            'ifchanged08': ('{% for data in datalist %}{% for c,d in data %}{% if c %}{% ifchanged %}{{ d }}{% endifchanged %}{% endif %}{% endfor %}{% endfor %}', {'datalist': [[(1, 'a'), (1, 'a'), (0, 'b'), (1, 'c')], [(0, 'a'), (1, 'c'), (1, 'd'), (1, 'd'), (0, 'e')]]}, 'accd'),

            # Test one parameter given to ifchanged.
            'ifchanged-param01': ('{% for n in num %}{% ifchanged n %}..{% endifchanged %}{{ n }}{% endfor %}', { 'num': (1,2,3) }, '..1..2..3'),
            'ifchanged-param02': ('{% for n in num %}{% for x in numx %}{% ifchanged n %}..{% endifchanged %}{{ x }}{% endfor %}{% endfor %}', { 'num': (1,2,3), 'numx': (5,6,7) }, '..567..567..567'),

            # Test multiple parameters to ifchanged.
            'ifchanged-param03': ('{% for n in num %}{{ n }}{% for x in numx %}{% ifchanged x n %}{{ x }}{% endifchanged %}{% endfor %}{% endfor %}', { 'num': (1,1,2), 'numx': (5,6,6) }, '156156256'),

            # Test a date+hour like construct, where the hour of the last day
            # is the same but the date had changed, so print the hour anyway.
            'ifchanged-param04': ('{% for d in days %}{% ifchanged %}{{ d.day }}{% endifchanged %}{% for h in d.hours %}{% ifchanged d h %}{{ h }}{% endifchanged %}{% endfor %}{% endfor %}', {'days':[{'day':1, 'hours':[1,2,3]},{'day':2, 'hours':[3]},] }, '112323'),

            # Logically the same as above, just written with explicit
            # ifchanged for the day.
            'ifchanged-param05': ('{% for d in days %}{% ifchanged d.day %}{{ d.day }}{% endifchanged %}{% for h in d.hours %}{% ifchanged d.day h %}{{ h }}{% endifchanged %}{% endfor %}{% endfor %}', {'days':[{'day':1, 'hours':[1,2,3]},{'day':2, 'hours':[3]},] }, '112323'),

            # Test the else clause of ifchanged.
            'ifchanged-else01': ('{% for id in ids %}{{ id }}{% ifchanged id %}-first{% else %}-other{% endifchanged %},{% endfor %}', {'ids': [1,1,2,2,2,3]}, '1-first,1-other,2-first,2-other,2-other,3-first,'),

            'ifchanged-else02': ('{% for id in ids %}{{ id }}-{% ifchanged id %}{% cycle red,blue %}{% else %}grey{% endifchanged %},{% endfor %}', {'ids': [1,1,2,2,2,3]}, '1-red,1-grey,2-blue,2-grey,2-grey,3-red,'),
            'ifchanged-else03': ('{% for id in ids %}{{ id }}{% ifchanged id %}-{% cycle red,blue %}{% else %}{% endifchanged %},{% endfor %}', {'ids': [1,1,2,2,2,3]}, '1-red,1,2-blue,2,2,3-red,'),

            'ifchanged-else04': ('{% for id in ids %}{% ifchanged %}***{{ id }}*{% else %}...{% endifchanged %}{{ forloop.counter }}{% endfor %}', {'ids': [1,1,2,2,2,3,4]}, '***1*1...2***2*3...4...5***3*6***4*7'),

            # Test whitespace in filter arguments
            'ifchanged-filter-ws': ('{% load custom %}{% for n in num %}{% ifchanged n|noop:"x y" %}..{% endifchanged %}{{ n }}{% endfor %}', {'num': (1,2,3)}, '..1..2..3'),

            ### IFEQUAL TAG ###########################################################
            'ifequal01': ("{% ifequal a b %}yes{% endifequal %}", {"a": 1, "b": 2}, ""),
            'ifequal02': ("{% ifequal a b %}yes{% endifequal %}", {"a": 1, "b": 1}, "yes"),
            'ifequal03': ("{% ifequal a b %}yes{% else %}no{% endifequal %}", {"a": 1, "b": 2}, "no"),
            'ifequal04': ("{% ifequal a b %}yes{% else %}no{% endifequal %}", {"a": 1, "b": 1}, "yes"),
            'ifequal05': ("{% ifequal a 'test' %}yes{% else %}no{% endifequal %}", {"a": "test"}, "yes"),
            'ifequal06': ("{% ifequal a 'test' %}yes{% else %}no{% endifequal %}", {"a": "no"}, "no"),
            'ifequal07': ('{% ifequal a "test" %}yes{% else %}no{% endifequal %}', {"a": "test"}, "yes"),
            'ifequal08': ('{% ifequal a "test" %}yes{% else %}no{% endifequal %}', {"a": "no"}, "no"),
            'ifequal09': ('{% ifequal a "test" %}yes{% else %}no{% endifequal %}', {}, "no"),
            'ifequal10': ('{% ifequal a b %}yes{% else %}no{% endifequal %}', {}, "yes"),

            # SMART SPLITTING
            'ifequal-split01': ('{% ifequal a "test man" %}yes{% else %}no{% endifequal %}', {}, "no"),
            'ifequal-split02': ('{% ifequal a "test man" %}yes{% else %}no{% endifequal %}', {'a': 'foo'}, "no"),
            'ifequal-split03': ('{% ifequal a "test man" %}yes{% else %}no{% endifequal %}', {'a': 'test man'}, "yes"),
            'ifequal-split04': ("{% ifequal a 'test man' %}yes{% else %}no{% endifequal %}", {'a': 'test man'}, "yes"),
            'ifequal-split05': ("{% ifequal a 'i \"love\" you' %}yes{% else %}no{% endifequal %}", {'a': ''}, "no"),
            'ifequal-split06': ("{% ifequal a 'i \"love\" you' %}yes{% else %}no{% endifequal %}", {'a': 'i "love" you'}, "yes"),
            'ifequal-split07': ("{% ifequal a 'i \"love\" you' %}yes{% else %}no{% endifequal %}", {'a': 'i love you'}, "no"),
            'ifequal-split08': (r"{% ifequal a 'I\'m happy' %}yes{% else %}no{% endifequal %}", {'a': "I'm happy"}, "yes"),
            'ifequal-split09': (r"{% ifequal a 'slash\man' %}yes{% else %}no{% endifequal %}", {'a': r"slash\man"}, "yes"),
            'ifequal-split10': (r"{% ifequal a 'slash\man' %}yes{% else %}no{% endifequal %}", {'a': r"slashman"}, "no"),

            # NUMERIC RESOLUTION
            'ifequal-numeric01': ('{% ifequal x 5 %}yes{% endifequal %}', {'x': '5'}, ''),
            'ifequal-numeric02': ('{% ifequal x 5 %}yes{% endifequal %}', {'x': 5}, 'yes'),
            'ifequal-numeric03': ('{% ifequal x 5.2 %}yes{% endifequal %}', {'x': 5}, ''),
            'ifequal-numeric04': ('{% ifequal x 5.2 %}yes{% endifequal %}', {'x': 5.2}, 'yes'),
            'ifequal-numeric05': ('{% ifequal x 0.2 %}yes{% endifequal %}', {'x': .2}, 'yes'),
            'ifequal-numeric06': ('{% ifequal x .2 %}yes{% endifequal %}', {'x': .2}, 'yes'),
            'ifequal-numeric07': ('{% ifequal x 2. %}yes{% endifequal %}', {'x': 2}, ''),
            'ifequal-numeric08': ('{% ifequal x "5" %}yes{% endifequal %}', {'x': 5}, ''),
            'ifequal-numeric09': ('{% ifequal x "5" %}yes{% endifequal %}', {'x': '5'}, 'yes'),
            'ifequal-numeric10': ('{% ifequal x -5 %}yes{% endifequal %}', {'x': -5}, 'yes'),
            'ifequal-numeric11': ('{% ifequal x -5.2 %}yes{% endifequal %}', {'x': -5.2}, 'yes'),
            'ifequal-numeric12': ('{% ifequal x +5 %}yes{% endifequal %}', {'x': 5}, 'yes'),

            # FILTER EXPRESSIONS AS ARGUMENTS
            'ifequal-filter01': ('{% ifequal a|upper "A" %}x{% endifequal %}', {'a': 'a'}, 'x'),
            'ifequal-filter02': ('{% ifequal "A" a|upper %}x{% endifequal %}', {'a': 'a'}, 'x'),
            'ifequal-filter03': ('{% ifequal a|upper b|upper %}x{% endifequal %}', {'a': 'x', 'b': 'X'}, 'x'),
            'ifequal-filter04': ('{% ifequal x|slice:"1" "a" %}x{% endifequal %}', {'x': 'aaa'}, 'x'),
            'ifequal-filter05': ('{% ifequal x|slice:"1"|upper "A" %}x{% endifequal %}', {'x': 'aaa'}, 'x'),

            ### IFNOTEQUAL TAG ########################################################
            'ifnotequal01': ("{% ifnotequal a b %}yes{% endifnotequal %}", {"a": 1, "b": 2}, "yes"),
            'ifnotequal02': ("{% ifnotequal a b %}yes{% endifnotequal %}", {"a": 1, "b": 1}, ""),
            'ifnotequal03': ("{% ifnotequal a b %}yes{% else %}no{% endifnotequal %}", {"a": 1, "b": 2}, "yes"),
            'ifnotequal04': ("{% ifnotequal a b %}yes{% else %}no{% endifnotequal %}", {"a": 1, "b": 1}, "no"),

            ## INCLUDE TAG ###########################################################
            'include01': ('{% include "basic-syntax01" %}', {}, "something cool"),
            'include02': ('{% include "basic-syntax02" %}', {'headline': 'Included'}, "Included"),
            'include03': ('{% include template_name %}', {'template_name': 'basic-syntax02', 'headline': 'Included'}, "Included"),
            'include04': ('a{% include "nonexistent" %}b', {}, ("ab", "ab", template.TemplateDoesNotExist)),
            'include 05': ('template with a space', {}, 'template with a space'),
            'include06': ('{% include "include 05"%}', {}, 'template with a space'),

            # extra inline context
            'include07': ('{% include "basic-syntax02" with headline="Inline" %}', {'headline': 'Included'}, 'Inline'),
            'include08': ('{% include headline with headline="Dynamic" %}', {'headline': 'basic-syntax02'}, 'Dynamic'),
            'include09': ('{{ first }}--{% include "basic-syntax03" with first=second|lower|upper second=first|upper %}--{{ second }}', {'first': 'Ul', 'second': 'lU'}, 'Ul--LU --- UL--lU'),

            # isolated context
            'include10': ('{% include "basic-syntax03" only %}', {'first': '1'}, (' --- ', 'INVALID --- INVALID')),
            'include11': ('{% include "basic-syntax03" only with second=2 %}', {'first': '1'}, (' --- 2', 'INVALID --- 2')),
            'include12': ('{% include "basic-syntax03" with first=1 only %}', {'second': '2'}, ('1 --- ', '1 --- INVALID')),

            # autoescape context
            'include13': ('{% autoescape off %}{% include "basic-syntax03" %}{% endautoescape %}', {'first': '&'}, ('& --- ', '& --- INVALID')),
            'include14': ('{% autoescape off %}{% include "basic-syntax03" with first=var1 only %}{% endautoescape %}', {'var1': '&'}, ('& --- ', '& --- INVALID')),

            'include-error01': ('{% include "basic-syntax01" with %}', {}, template.TemplateSyntaxError),
            'include-error02': ('{% include "basic-syntax01" with "no key" %}', {}, template.TemplateSyntaxError),
            'include-error03': ('{% include "basic-syntax01" with dotted.arg="error" %}', {}, template.TemplateSyntaxError),
            'include-error04': ('{% include "basic-syntax01" something_random %}', {}, template.TemplateSyntaxError),
            'include-error05': ('{% include "basic-syntax01" foo="duplicate" foo="key" %}', {}, template.TemplateSyntaxError),
            'include-error06': ('{% include "basic-syntax01" only only %}', {}, template.TemplateSyntaxError),

            ### INCLUSION ERROR REPORTING #############################################
            'include-fail1': ('{% load bad_tag %}{% badtag %}', {}, RuntimeError),
            'include-fail2': ('{% load broken_tag %}', {}, template.TemplateSyntaxError),
            'include-error07': ('{% include "include-fail1" %}', {}, ('', '', RuntimeError)),
            'include-error08': ('{% include "include-fail2" %}', {}, ('', '', template.TemplateSyntaxError)),
            'include-error09': ('{% include failed_include %}', {'failed_include': 'include-fail1'}, ('', '', RuntimeError)),
            'include-error10': ('{% include failed_include %}', {'failed_include': 'include-fail2'}, ('', '', template.TemplateSyntaxError)),


            ### NAMED ENDBLOCKS #######################################################

            # Basic test
            'namedendblocks01': ("1{% block first %}_{% block second %}2{% endblock second %}_{% endblock first %}3", {}, '1_2_3'),

            # Unbalanced blocks
            'namedendblocks02': ("1{% block first %}_{% block second %}2{% endblock first %}_{% endblock second %}3", {}, template.TemplateSyntaxError),
            'namedendblocks03': ("1{% block first %}_{% block second %}2{% endblock %}_{% endblock second %}3", {}, template.TemplateSyntaxError),
            'namedendblocks04': ("1{% block first %}_{% block second %}2{% endblock second %}_{% endblock third %}3", {}, template.TemplateSyntaxError),
            'namedendblocks05': ("1{% block first %}_{% block second %}2{% endblock first %}", {}, template.TemplateSyntaxError),

            # Mixed named and unnamed endblocks
            'namedendblocks06': ("1{% block first %}_{% block second %}2{% endblock %}_{% endblock first %}3", {}, '1_2_3'),
            'namedendblocks07': ("1{% block first %}_{% block second %}2{% endblock second %}_{% endblock %}3", {}, '1_2_3'),

            ### INHERITANCE ###########################################################

            # Standard template with no inheritance
            'inheritance01': ("1{% block first %}&{% endblock %}3{% block second %}_{% endblock %}", {}, '1&3_'),

            # Standard two-level inheritance
            'inheritance02': ("{% extends 'inheritance01' %}{% block first %}2{% endblock %}{% block second %}4{% endblock %}", {}, '1234'),

            # Three-level with no redefinitions on third level
            'inheritance03': ("{% extends 'inheritance02' %}", {}, '1234'),

            # Two-level with no redefinitions on second level
            'inheritance04': ("{% extends 'inheritance01' %}", {}, '1&3_'),

            # Two-level with double quotes instead of single quotes
            'inheritance05': ('{% extends "inheritance02" %}', {}, '1234'),

            # Three-level with variable parent-template name
            'inheritance06': ("{% extends foo %}", {'foo': 'inheritance02'}, '1234'),

            # Two-level with one block defined, one block not defined
            'inheritance07': ("{% extends 'inheritance01' %}{% block second %}5{% endblock %}", {}, '1&35'),

            # Three-level with one block defined on this level, two blocks defined next level
            'inheritance08': ("{% extends 'inheritance02' %}{% block second %}5{% endblock %}", {}, '1235'),

            # Three-level with second and third levels blank
            'inheritance09': ("{% extends 'inheritance04' %}", {}, '1&3_'),

            # Three-level with space NOT in a block -- should be ignored
            'inheritance10': ("{% extends 'inheritance04' %}      ", {}, '1&3_'),

            # Three-level with both blocks defined on this level, but none on second level
            'inheritance11': ("{% extends 'inheritance04' %}{% block first %}2{% endblock %}{% block second %}4{% endblock %}", {}, '1234'),

            # Three-level with this level providing one and second level providing the other
            'inheritance12': ("{% extends 'inheritance07' %}{% block first %}2{% endblock %}", {}, '1235'),

            # Three-level with this level overriding second level
            'inheritance13': ("{% extends 'inheritance02' %}{% block first %}a{% endblock %}{% block second %}b{% endblock %}", {}, '1a3b'),

            # A block defined only in a child template shouldn't be displayed
            'inheritance14': ("{% extends 'inheritance01' %}{% block newblock %}NO DISPLAY{% endblock %}", {}, '1&3_'),

            # A block within another block
            'inheritance15': ("{% extends 'inheritance01' %}{% block first %}2{% block inner %}inner{% endblock %}{% endblock %}", {}, '12inner3_'),

            # A block within another block (level 2)
            'inheritance16': ("{% extends 'inheritance15' %}{% block inner %}out{% endblock %}", {}, '12out3_'),

            # {% load %} tag (parent -- setup for exception04)
            'inheritance17': ("{% load testtags %}{% block first %}1234{% endblock %}", {}, '1234'),

            # {% load %} tag (standard usage, without inheritance)
            'inheritance18': ("{% load testtags %}{% echo this that theother %}5678", {}, 'this that theother5678'),

            # {% load %} tag (within a child template)
            'inheritance19': ("{% extends 'inheritance01' %}{% block first %}{% load testtags %}{% echo 400 %}5678{% endblock %}", {}, '140056783_'),

            # Two-level inheritance with {{ block.super }}
            'inheritance20': ("{% extends 'inheritance01' %}{% block first %}{{ block.super }}a{% endblock %}", {}, '1&a3_'),

            # Three-level inheritance with {{ block.super }} from parent
            'inheritance21': ("{% extends 'inheritance02' %}{% block first %}{{ block.super }}a{% endblock %}", {}, '12a34'),

            # Three-level inheritance with {{ block.super }} from grandparent
            'inheritance22': ("{% extends 'inheritance04' %}{% block first %}{{ block.super }}a{% endblock %}", {}, '1&a3_'),

            # Three-level inheritance with {{ block.super }} from parent and grandparent
            'inheritance23': ("{% extends 'inheritance20' %}{% block first %}{{ block.super }}b{% endblock %}", {}, '1&ab3_'),

            # Inheritance from local context without use of template loader
            'inheritance24': ("{% extends context_template %}{% block first %}2{% endblock %}{% block second %}4{% endblock %}", {'context_template': template.Template("1{% block first %}_{% endblock %}3{% block second %}_{% endblock %}")}, '1234'),

            # Inheritance from local context with variable parent template
            'inheritance25': ("{% extends context_template.1 %}{% block first %}2{% endblock %}{% block second %}4{% endblock %}", {'context_template': [template.Template("Wrong"), template.Template("1{% block first %}_{% endblock %}3{% block second %}_{% endblock %}")]}, '1234'),

            # Set up a base template to extend
            'inheritance26': ("no tags", {}, 'no tags'),

            # Inheritance from a template that doesn't have any blocks
            'inheritance27': ("{% extends 'inheritance26' %}", {}, 'no tags'),

            # Set up a base template with a space in it.
            'inheritance 28': ("{% block first %}!{% endblock %}", {}, '!'),

            # Inheritance from a template with a space in its name should work.
            'inheritance29': ("{% extends 'inheritance 28' %}", {}, '!'),

            # Base template, putting block in a conditional {% if %} tag
            'inheritance30': ("1{% if optional %}{% block opt %}2{% endblock %}{% endif %}3", {'optional': True}, '123'),

            # Inherit from a template with block wrapped in an {% if %} tag (in parent), still gets overridden
            'inheritance31': ("{% extends 'inheritance30' %}{% block opt %}two{% endblock %}", {'optional': True}, '1two3'),
            'inheritance32': ("{% extends 'inheritance30' %}{% block opt %}two{% endblock %}", {}, '13'),

            # Base template, putting block in a conditional {% ifequal %} tag
            'inheritance33': ("1{% ifequal optional 1 %}{% block opt %}2{% endblock %}{% endifequal %}3", {'optional': 1}, '123'),

            # Inherit from a template with block wrapped in an {% ifequal %} tag (in parent), still gets overridden
            'inheritance34': ("{% extends 'inheritance33' %}{% block opt %}two{% endblock %}", {'optional': 1}, '1two3'),
            'inheritance35': ("{% extends 'inheritance33' %}{% block opt %}two{% endblock %}", {'optional': 2}, '13'),

            # Base template, putting block in a {% for %} tag
            'inheritance36': ("{% for n in numbers %}_{% block opt %}{{ n }}{% endblock %}{% endfor %}_", {'numbers': '123'}, '_1_2_3_'),

            # Inherit from a template with block wrapped in an {% for %} tag (in parent), still gets overridden
            'inheritance37': ("{% extends 'inheritance36' %}{% block opt %}X{% endblock %}", {'numbers': '123'}, '_X_X_X_'),
            'inheritance38': ("{% extends 'inheritance36' %}{% block opt %}X{% endblock %}", {}, '_'),

            # The super block will still be found.
            'inheritance39': ("{% extends 'inheritance30' %}{% block opt %}new{{ block.super }}{% endblock %}", {'optional': True}, '1new23'),
            'inheritance40': ("{% extends 'inheritance33' %}{% block opt %}new{{ block.super }}{% endblock %}", {'optional': 1}, '1new23'),
            'inheritance41': ("{% extends 'inheritance36' %}{% block opt %}new{{ block.super }}{% endblock %}", {'numbers': '123'}, '_new1_new2_new3_'),

            # Expression starting and ending with a quote
            'inheritance42': ("{% extends 'inheritance02'|cut:' ' %}", {}, '1234'),

            ### LOADING TAG LIBRARIES #################################################
            'load01': ("{% load testtags subpackage.echo %}{% echo test %} {% echo2 \"test\" %}", {}, "test test"),
            'load02': ("{% load subpackage.echo %}{% echo2 \"test\" %}", {}, "test"),

            # {% load %} tag, importing individual tags
            'load03': ("{% load echo from testtags %}{% echo this that theother %}", {}, 'this that theother'),
            'load04': ("{% load echo other_echo from testtags %}{% echo this that theother %} {% other_echo and another thing %}", {}, 'this that theother and another thing'),
            'load05': ("{% load echo upper from testtags %}{% echo this that theother %} {{ statement|upper }}", {'statement': 'not shouting'}, 'this that theother NOT SHOUTING'),
            'load06': ("{% load echo2 from subpackage.echo %}{% echo2 \"test\" %}", {}, "test"),

            # {% load %} tag errors
            'load07': ("{% load echo other_echo bad_tag from testtags %}", {}, template.TemplateSyntaxError),
            'load08': ("{% load echo other_echo bad_tag from %}", {}, template.TemplateSyntaxError),
            'load09': ("{% load from testtags %}", {}, template.TemplateSyntaxError),
            'load10': ("{% load echo from bad_library %}", {}, template.TemplateSyntaxError),
            'load11': ("{% load subpackage.echo_invalid %}", {}, template.TemplateSyntaxError),
            'load12': ("{% load subpackage.missing %}", {}, template.TemplateSyntaxError),

            ### I18N ##################################################################

            # {% spaceless %} tag
            'spaceless01': ("{% spaceless %} <b>    <i> text </i>    </b> {% endspaceless %}", {}, "<b><i> text </i></b>"),
            'spaceless02': ("{% spaceless %} <b> \n <i> text </i> \n </b> {% endspaceless %}", {}, "<b><i> text </i></b>"),
            'spaceless03': ("{% spaceless %}<b><i>text</i></b>{% endspaceless %}", {}, "<b><i>text</i></b>"),
            'spaceless04': ("{% spaceless %}<b>   <i>{{ text }}</i>  </b>{% endspaceless %}", {'text' : 'This & that'}, "<b><i>This &amp; that</i></b>"),
            'spaceless05': ("{% autoescape off %}{% spaceless %}<b>   <i>{{ text }}</i>  </b>{% endspaceless %}{% endautoescape %}", {'text' : 'This & that'}, "<b><i>This & that</i></b>"),
            'spaceless06': ("{% spaceless %}<b>   <i>{{ text|safe }}</i>  </b>{% endspaceless %}", {'text' : 'This & that'}, "<b><i>This & that</i></b>"),

            # simple translation of a string delimited by '
            'i18n01': ("{% load i18n %}{% trans 'xxxyyyxxx' %}", {}, "xxxyyyxxx"),

            # simple translation of a string delimited by "
            'i18n02': ('{% load i18n %}{% trans "xxxyyyxxx" %}', {}, "xxxyyyxxx"),

            # simple translation of a variable
            'i18n03': ('{% load i18n %}{% blocktrans %}{{ anton }}{% endblocktrans %}', {'anton': b'\xc3\x85'}, "Å"),

            # simple translation of a variable and filter
            'i18n04': ('{% load i18n %}{% blocktrans with berta=anton|lower %}{{ berta }}{% endblocktrans %}', {'anton': b'\xc3\x85'}, 'å'),
            'legacyi18n04': ('{% load i18n %}{% blocktrans with anton|lower as berta %}{{ berta }}{% endblocktrans %}', {'anton': b'\xc3\x85'}, 'å'),

            # simple translation of a string with interpolation
            'i18n05': ('{% load i18n %}{% blocktrans %}xxx{{ anton }}xxx{% endblocktrans %}', {'anton': 'yyy'}, "xxxyyyxxx"),

            # simple translation of a string to german
            'i18n06': ('{% load i18n %}{% trans "Page not found" %}', {'LANGUAGE_CODE': 'de'}, "Seite nicht gefunden"),

            # translation of singular form
            'i18n07': ('{% load i18n %}{% blocktrans count counter=number %}singular{% plural %}{{ counter }} plural{% endblocktrans %}', {'number': 1}, "singular"),
            'legacyi18n07': ('{% load i18n %}{% blocktrans count number as counter %}singular{% plural %}{{ counter }} plural{% endblocktrans %}', {'number': 1}, "singular"),

            # translation of plural form
            'i18n08': ('{% load i18n %}{% blocktrans count number as counter %}singular{% plural %}{{ counter }} plural{% endblocktrans %}', {'number': 2}, "2 plural"),
            'legacyi18n08': ('{% load i18n %}{% blocktrans count counter=number %}singular{% plural %}{{ counter }} plural{% endblocktrans %}', {'number': 2}, "2 plural"),

            # simple non-translation (only marking) of a string to german
            'i18n09': ('{% load i18n %}{% trans "Page not found" noop %}', {'LANGUAGE_CODE': 'de'}, "Page not found"),

            # translation of a variable with a translated filter
            'i18n10': ('{{ bool|yesno:_("yes,no,maybe") }}', {'bool': True, 'LANGUAGE_CODE': 'de'}, 'Ja'),

            # translation of a variable with a non-translated filter
            'i18n11': ('{{ bool|yesno:"ja,nein" }}', {'bool': True}, 'ja'),

            # usage of the get_available_languages tag
            'i18n12': ('{% load i18n %}{% get_available_languages as langs %}{% for lang in langs %}{% ifequal lang.0 "de" %}{{ lang.0 }}{% endifequal %}{% endfor %}', {}, 'de'),

            # translation of constant strings
            'i18n13': ('{{ _("Password") }}', {'LANGUAGE_CODE': 'de'}, 'Passwort'),
            'i18n14': ('{% cycle "foo" _("Password") _(\'Password\') as c %} {% cycle c %} {% cycle c %}', {'LANGUAGE_CODE': 'de'}, 'foo Passwort Passwort'),
            'i18n15': ('{{ absent|default:_("Password") }}', {'LANGUAGE_CODE': 'de', 'absent': ""}, 'Passwort'),
            'i18n16': ('{{ _("<") }}', {'LANGUAGE_CODE': 'de'}, '<'),

            # Escaping inside blocktrans and trans works as if it was directly in the
            # template.
            'i18n17': ('{% load i18n %}{% blocktrans with berta=anton|escape %}{{ berta }}{% endblocktrans %}', {'anton': 'α & β'}, 'α &amp; β'),
            'i18n18': ('{% load i18n %}{% blocktrans with berta=anton|force_escape %}{{ berta }}{% endblocktrans %}', {'anton': 'α & β'}, 'α &amp; β'),
            'i18n19': ('{% load i18n %}{% blocktrans %}{{ andrew }}{% endblocktrans %}', {'andrew': 'a & b'}, 'a &amp; b'),
            'i18n20': ('{% load i18n %}{% trans andrew %}', {'andrew': 'a & b'}, 'a &amp; b'),
            'i18n21': ('{% load i18n %}{% blocktrans %}{{ andrew }}{% endblocktrans %}', {'andrew': mark_safe('a & b')}, 'a & b'),
            'i18n22': ('{% load i18n %}{% trans andrew %}', {'andrew': mark_safe('a & b')}, 'a & b'),
            'legacyi18n17': ('{% load i18n %}{% blocktrans with anton|escape as berta %}{{ berta }}{% endblocktrans %}', {'anton': 'α & β'}, 'α &amp; β'),
            'legacyi18n18': ('{% load i18n %}{% blocktrans with anton|force_escape as berta %}{{ berta }}{% endblocktrans %}', {'anton': 'α & β'}, 'α &amp; β'),

            # Use filters with the {% trans %} tag, #5972
            'i18n23': ('{% load i18n %}{% trans "Page not found"|capfirst|slice:"6:" %}', {'LANGUAGE_CODE': 'de'}, 'nicht gefunden'),
            'i18n24': ("{% load i18n %}{% trans 'Page not found'|upper %}", {'LANGUAGE_CODE': 'de'}, 'SEITE NICHT GEFUNDEN'),
            'i18n25': ('{% load i18n %}{% trans somevar|upper %}', {'somevar': 'Page not found', 'LANGUAGE_CODE': 'de'}, 'SEITE NICHT GEFUNDEN'),

            # translation of plural form with extra field in singular form (#13568)
            'i18n26': ('{% load i18n %}{% blocktrans with extra_field=myextra_field count counter=number %}singular {{ extra_field }}{% plural %}plural{% endblocktrans %}', {'number': 1, 'myextra_field': 'test'}, "singular test"),
            'legacyi18n26': ('{% load i18n %}{% blocktrans with myextra_field as extra_field count number as counter %}singular {{ extra_field }}{% plural %}plural{% endblocktrans %}', {'number': 1, 'myextra_field': 'test'}, "singular test"),

            # translation of singular form in russian (#14126)
            'i18n27': ('{% load i18n %}{% blocktrans count counter=number %}{{ counter }} result{% plural %}{{ counter }} results{% endblocktrans %}', {'number': 1, 'LANGUAGE_CODE': 'ru'}, '1 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442'),
            'legacyi18n27': ('{% load i18n %}{% blocktrans count number as counter %}{{ counter }} result{% plural %}{{ counter }} results{% endblocktrans %}', {'number': 1, 'LANGUAGE_CODE': 'ru'}, '1 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442'),

            # simple translation of multiple variables
            'i18n28': ('{% load i18n %}{% blocktrans with a=anton b=berta %}{{ a }} + {{ b }}{% endblocktrans %}', {'anton': 'α', 'berta': 'β'}, 'α + β'),
            'legacyi18n28': ('{% load i18n %}{% blocktrans with anton as a and berta as b %}{{ a }} + {{ b }}{% endblocktrans %}', {'anton': 'α', 'berta': 'β'}, 'α + β'),

            # retrieving language information
            'i18n28_2': ('{% load i18n %}{% get_language_info for "de" as l %}{{ l.code }}: {{ l.name }}/{{ l.name_local }} bidi={{ l.bidi }}', {}, 'de: German/Deutsch bidi=False'),
            'i18n29': ('{% load i18n %}{% get_language_info for LANGUAGE_CODE as l %}{{ l.code }}: {{ l.name }}/{{ l.name_local }} bidi={{ l.bidi }}', {'LANGUAGE_CODE': 'fi'}, 'fi: Finnish/suomi bidi=False'),
            'i18n30': ('{% load i18n %}{% get_language_info_list for langcodes as langs %}{% for l in langs %}{{ l.code }}: {{ l.name }}/{{ l.name_local }} bidi={{ l.bidi }}; {% endfor %}', {'langcodes': ['it', 'no']}, 'it: Italian/italiano bidi=False; no: Norwegian/norsk bidi=False; '),
            'i18n31': ('{% load i18n %}{% get_language_info_list for langcodes as langs %}{% for l in langs %}{{ l.code }}: {{ l.name }}/{{ l.name_local }} bidi={{ l.bidi }}; {% endfor %}', {'langcodes': (('sl', 'Slovenian'), ('fa', 'Persian'))}, 'sl: Slovenian/Sloven\u0161\u010dina bidi=False; fa: Persian/\u0641\u0627\u0631\u0633\u06cc bidi=True; '),
            'i18n32': ('{% load i18n %}{{ "hu"|language_name }} {{ "hu"|language_name_local }} {{ "hu"|language_bidi }}', {}, 'Hungarian Magyar False'),
            'i18n33': ('{% load i18n %}{{ langcode|language_name }} {{ langcode|language_name_local }} {{ langcode|language_bidi }}', {'langcode': 'nl'}, 'Dutch Nederlands False'),

            # blocktrans handling of variables which are not in the context.
            # this should work as if blocktrans was not there (bug #19915)
            'i18n34': ('{% load i18n %}{% blocktrans %}{{ missing }}{% endblocktrans %}', {}, ('', 'INVALID')),
            'i18n34_2': ("{% load i18n %}{% blocktrans with a='α' %}{{ missing }}{% endblocktrans %}", {}, ('', 'INVALID')),
            'i18n34_3': ('{% load i18n %}{% blocktrans with a=anton %}{{ missing }}{% endblocktrans %}', {'anton': 'α'}, ('', 'INVALID')),

            # trans tag with as var
            'i18n35': ('{% load i18n %}{% trans "Page not found" as page_not_found %}{{ page_not_found }}', {'LANGUAGE_CODE': 'de'}, "Seite nicht gefunden"),
            'i18n36': ('{% load i18n %}{% trans "Page not found" noop as page_not_found %}{{ page_not_found }}', {'LANGUAGE_CODE': 'de'}, "Page not found"),
            'i18n36': ('{% load i18n %}{% trans "Page not found" as page_not_found noop %}{{ page_not_found }}', {'LANGUAGE_CODE': 'de'}, "Page not found"),
            'i18n37': ('{% load i18n %}{% trans "Page not found" as page_not_found %}{% blocktrans %}Error: {{ page_not_found }}{% endblocktrans %}', {'LANGUAGE_CODE': 'de'}, "Error: Seite nicht gefunden"),

            # Test whitespace in filter arguments
            'i18n38': ('{% load i18n custom %}{% get_language_info for "de"|noop:"x y" as l %}{{ l.code }}: {{ l.name }}/{{ l.name_local }} bidi={{ l.bidi }}', {}, 'de: German/Deutsch bidi=False'),
            'i18n38_2': ('{% load i18n custom %}{% get_language_info_list for langcodes|noop:"x y" as langs %}{% for l in langs %}{{ l.code }}: {{ l.name }}/{{ l.name_local }} bidi={{ l.bidi }}; {% endfor %}', {'langcodes': ['it', 'no']}, 'it: Italian/italiano bidi=False; no: Norwegian/norsk bidi=False; '),

            ### HANDLING OF TEMPLATE_STRING_IF_INVALID ###################################

            'invalidstr01': ('{{ var|default:"Foo" }}', {}, ('Foo','INVALID')),
            'invalidstr02': ('{{ var|default_if_none:"Foo" }}', {}, ('','INVALID')),
            'invalidstr03': ('{% for v in var %}({{ v }}){% endfor %}', {}, ''),
            'invalidstr04': ('{% if var %}Yes{% else %}No{% endif %}', {}, 'No'),
            'invalidstr04_2': ('{% if var|default:"Foo" %}Yes{% else %}No{% endif %}', {}, 'Yes'),
            'invalidstr05': ('{{ var }}', {}, ('', ('INVALID %s', 'var'))),
            'invalidstr06': ('{{ var.prop }}', {'var': {}}, ('', ('INVALID %s', 'var.prop'))),

            ### MULTILINE #############################################################

            'multiline01': ("""
                            Hello,
                            boys.
                            How
                            are
                            you
                            gentlemen.
                            """,
                            {},
                            """
                            Hello,
                            boys.
                            How
                            are
                            you
                            gentlemen.
                            """),

            ### REGROUP TAG ###########################################################
            'regroup01': ('{% regroup data by bar as grouped %}'
                          '{% for group in grouped %}'
                          '{{ group.grouper }}:'
                          '{% for item in group.list %}'
                          '{{ item.foo }}'
                          '{% endfor %},'
                          '{% endfor %}',
                          {'data': [ {'foo':'c', 'bar':1},
                                     {'foo':'d', 'bar':1},
                                     {'foo':'a', 'bar':2},
                                     {'foo':'b', 'bar':2},
                                     {'foo':'x', 'bar':3}  ]},
                          '1:cd,2:ab,3:x,'),

            # Test for silent failure when target variable isn't found
            'regroup02': ('{% regroup data by bar as grouped %}'
                          '{% for group in grouped %}'
                          '{{ group.grouper }}:'
                          '{% for item in group.list %}'
                          '{{ item.foo }}'
                          '{% endfor %},'
                          '{% endfor %}',
                          {}, ''),

            # Regression tests for #17675
            # The date template filter has expects_localtime = True
            'regroup03': ('{% regroup data by at|date:"m" as grouped %}'
                          '{% for group in grouped %}'
                          '{{ group.grouper }}:'
                          '{% for item in group.list %}'
                          '{{ item.at|date:"d" }}'
                          '{% endfor %},'
                          '{% endfor %}',
                          {'data': [{'at': date(2012, 2, 14)},
                                    {'at': date(2012, 2, 28)},
                                    {'at': date(2012, 7, 4)}]},
                          '02:1428,07:04,'),
            # The join template filter has needs_autoescape = True
            'regroup04': ('{% regroup data by bar|join:"" as grouped %}'
                          '{% for group in grouped %}'
                          '{{ group.grouper }}:'
                          '{% for item in group.list %}'
                          '{{ item.foo|first }}'
                          '{% endfor %},'
                          '{% endfor %}',
                          {'data': [{'foo': 'x', 'bar': ['ab', 'c']},
                                    {'foo': 'y', 'bar': ['a', 'bc']},
                                    {'foo': 'z', 'bar': ['a', 'd']}]},
                          'abc:xy,ad:z,'),

            # Test syntax
            'regroup05': ('{% regroup data by bar as %}', {},
                           template.TemplateSyntaxError),
            'regroup06': ('{% regroup data by bar thisaintright grouped %}', {},
                           template.TemplateSyntaxError),
            'regroup07': ('{% regroup data thisaintright bar as grouped %}', {},
                           template.TemplateSyntaxError),
            'regroup08': ('{% regroup data by bar as grouped toomanyargs %}', {},
                           template.TemplateSyntaxError),

            ### SSI TAG ########################################################

            # Test normal behavior
            'ssi01': ('{%% ssi "%s" %%}' % os.path.join(basedir, 'templates', 'ssi_include.html'), {}, 'This is for testing an ssi include. {{ test }}\n'),
            'ssi02': ('{%% ssi "%s" %%}' % os.path.join(basedir, 'not_here'), {}, ''),
            'ssi03': ("{%% ssi '%s' %%}" % os.path.join(basedir, 'not_here'), {}, ''),

            # Test passing as a variable
            'ssi04': ('{% load ssi from future %}{% ssi ssi_file %}', {'ssi_file': os.path.join(basedir, 'templates', 'ssi_include.html')}, 'This is for testing an ssi include. {{ test }}\n'),
            'ssi05': ('{% load ssi from future %}{% ssi ssi_file %}', {'ssi_file': 'no_file'}, ''),

            # Test parsed output
            'ssi06': ('{%% ssi "%s" parsed %%}' % os.path.join(basedir, 'templates', 'ssi_include.html'), {'test': 'Look ma! It parsed!'}, 'This is for testing an ssi include. Look ma! It parsed!\n'),
            'ssi07': ('{%% ssi "%s" parsed %%}' % os.path.join(basedir, 'not_here'), {'test': 'Look ma! It parsed!'}, ''),

            # Test space in file name
            'ssi08': ('{%% ssi "%s" %%}' % os.path.join(basedir, 'templates', 'ssi include with spaces.html'), {}, 'This is for testing an ssi include with spaces in its name. {{ test }}\n'),
            'ssi09': ('{%% ssi "%s" parsed %%}' % os.path.join(basedir, 'templates', 'ssi include with spaces.html'), {'test': 'Look ma! It parsed!'}, 'This is for testing an ssi include with spaces in its name. Look ma! It parsed!\n'),

            ### TEMPLATETAG TAG #######################################################
            'templatetag01': ('{% templatetag openblock %}', {}, '{%'),
            'templatetag02': ('{% templatetag closeblock %}', {}, '%}'),
            'templatetag03': ('{% templatetag openvariable %}', {}, '{{'),
            'templatetag04': ('{% templatetag closevariable %}', {}, '}}'),
            'templatetag05': ('{% templatetag %}', {}, template.TemplateSyntaxError),
            'templatetag06': ('{% templatetag foo %}', {}, template.TemplateSyntaxError),
            'templatetag07': ('{% templatetag openbrace %}', {}, '{'),
            'templatetag08': ('{% templatetag closebrace %}', {}, '}'),
            'templatetag09': ('{% templatetag openbrace %}{% templatetag openbrace %}', {}, '{{'),
            'templatetag10': ('{% templatetag closebrace %}{% templatetag closebrace %}', {}, '}}'),
            'templatetag11': ('{% templatetag opencomment %}', {}, '{#'),
            'templatetag12': ('{% templatetag closecomment %}', {}, '#}'),

            # Simple tags with customized names
            'simpletag-renamed01': ('{% load custom %}{% minusone 7 %}', {}, '6'),
            'simpletag-renamed02': ('{% load custom %}{% minustwo 7 %}', {}, '5'),
            'simpletag-renamed03': ('{% load custom %}{% minustwo_overridden_name 7 %}', {}, template.TemplateSyntaxError),

            ### WIDTHRATIO TAG ########################################################
            'widthratio01': ('{% widthratio a b 0 %}', {'a':50,'b':100}, '0'),
            'widthratio02': ('{% widthratio a b 100 %}', {'a':0,'b':0}, '0'),
            'widthratio03': ('{% widthratio a b 100 %}', {'a':0,'b':100}, '0'),
            'widthratio04': ('{% widthratio a b 100 %}', {'a':50,'b':100}, '50'),
            'widthratio05': ('{% widthratio a b 100 %}', {'a':100,'b':100}, '100'),

            # 62.5 should round to 63 on Python 2 and 62 on Python 3
            # See http://docs.python.org/py3k/whatsnew/3.0.html
            'widthratio06': ('{% widthratio a b 100 %}', {'a':50,'b':80}, '62' if six.PY3 else '63'),

            # 71.4 should round to 71
            'widthratio07': ('{% widthratio a b 100 %}', {'a':50,'b':70}, '71'),

            # Raise exception if we don't have 3 args, last one an integer
            'widthratio08': ('{% widthratio %}', {}, template.TemplateSyntaxError),
            'widthratio09': ('{% widthratio a b %}', {'a':50,'b':100}, template.TemplateSyntaxError),
            'widthratio10': ('{% widthratio a b 100.0 %}', {'a':50,'b':100}, '50'),

            # #10043: widthratio should allow max_width to be a variable
            'widthratio11': ('{% widthratio a b c %}', {'a':50,'b':100, 'c': 100}, '50'),

            # #18739: widthratio should handle None args consistently with non-numerics
            'widthratio12a': ('{% widthratio a b c %}', {'a':'a','b':100,'c':100}, ''),
            'widthratio12b': ('{% widthratio a b c %}', {'a':None,'b':100,'c':100}, ''),
            'widthratio13a': ('{% widthratio a b c %}', {'a':0,'b':'b','c':100}, ''),
            'widthratio13b': ('{% widthratio a b c %}', {'a':0,'b':None,'c':100}, ''),
            'widthratio14a': ('{% widthratio a b c %}', {'a':0,'b':100,'c':'c'}, template.TemplateSyntaxError),
            'widthratio14b': ('{% widthratio a b c %}', {'a':0,'b':100,'c':None}, template.TemplateSyntaxError),

            # Test whitespace in filter argument
            'widthratio15': ('{% load custom %}{% widthratio a|noop:"x y" b 0 %}', {'a':50,'b':100}, '0'),

            ### WITH TAG ########################################################
            'with01': ('{% with key=dict.key %}{{ key }}{% endwith %}', {'dict': {'key': 50}}, '50'),
            'legacywith01': ('{% with dict.key as key %}{{ key }}{% endwith %}', {'dict': {'key': 50}}, '50'),

            'with02': ('{{ key }}{% with key=dict.key %}{{ key }}-{{ dict.key }}-{{ key }}{% endwith %}{{ key }}', {'dict': {'key': 50}}, ('50-50-50', 'INVALID50-50-50INVALID')),
            'legacywith02': ('{{ key }}{% with dict.key as key %}{{ key }}-{{ dict.key }}-{{ key }}{% endwith %}{{ key }}', {'dict': {'key': 50}}, ('50-50-50', 'INVALID50-50-50INVALID')),

            'with03': ('{% with a=alpha b=beta %}{{ a }}{{ b }}{% endwith %}', {'alpha': 'A', 'beta': 'B'}, 'AB'),

            'with-error01': ('{% with dict.key xx key %}{{ key }}{% endwith %}', {'dict': {'key': 50}}, template.TemplateSyntaxError),
            'with-error02': ('{% with dict.key as %}{{ key }}{% endwith %}', {'dict': {'key': 50}}, template.TemplateSyntaxError),

            ### NOW TAG ########################################################
            # Simple case
            'now01': ('{% now "j n Y" %}', {}, "%d %d %d" % (
                datetime.now().day, datetime.now().month, datetime.now().year)),
            # Check parsing of locale strings
            'now02': ('{% now "DATE_FORMAT" %}', {},  date_format(datetime.now())),
            # Also accept simple quotes - #15092
            'now03': ("{% now 'j n Y' %}", {}, "%d %d %d" % (
                datetime.now().day, datetime.now().month, datetime.now().year)),
            'now04': ("{% now 'DATE_FORMAT' %}", {},  date_format(datetime.now())),
            'now05': ('''{% now 'j "n" Y'%}''', {}, '''%d "%d" %d''' % (
                datetime.now().day, datetime.now().month, datetime.now().year)),
            'now06': ('''{% now "j 'n' Y"%}''', {}, '''%d '%d' %d''' % (
                datetime.now().day, datetime.now().month, datetime.now().year)),

            ### URL TAG ########################################################
            # Successes
            'url01': ('{% url "template_tests.views.client" client.id %}', {'client': {'id': 1}}, '/url_tag/client/1/'),
            'url02': ('{% url "template_tests.views.client_action" id=client.id action="update" %}', {'client': {'id': 1}}, '/url_tag/client/1/update/'),
            'url02a': ('{% url "template_tests.views.client_action" client.id "update" %}', {'client': {'id': 1}}, '/url_tag/client/1/update/'),
            'url02b': ("{% url 'template_tests.views.client_action' id=client.id action='update' %}", {'client': {'id': 1}}, '/url_tag/client/1/update/'),
            'url02c': ("{% url 'template_tests.views.client_action' client.id 'update' %}", {'client': {'id': 1}}, '/url_tag/client/1/update/'),
            'url03': ('{% url "template_tests.views.index" %}', {}, '/url_tag/'),
            'url04': ('{% url "named.client" client.id %}', {'client': {'id': 1}}, '/url_tag/named-client/1/'),
            'url05': ('{% url "метка_оператора" v %}', {'v': 'Ω'}, '/url_tag/%D0%AE%D0%BD%D0%B8%D0%BA%D0%BE%D0%B4/%CE%A9/'),
            'url06': ('{% url "метка_оператора_2" tag=v %}', {'v': 'Ω'}, '/url_tag/%D0%AE%D0%BD%D0%B8%D0%BA%D0%BE%D0%B4/%CE%A9/'),
            'url07': ('{% url "template_tests.views.client2" tag=v %}', {'v': 'Ω'}, '/url_tag/%D0%AE%D0%BD%D0%B8%D0%BA%D0%BE%D0%B4/%CE%A9/'),
            'url08': ('{% url "метка_оператора" v %}', {'v': 'Ω'}, '/url_tag/%D0%AE%D0%BD%D0%B8%D0%BA%D0%BE%D0%B4/%CE%A9/'),
            'url09': ('{% url "метка_оператора_2" tag=v %}', {'v': 'Ω'}, '/url_tag/%D0%AE%D0%BD%D0%B8%D0%BA%D0%BE%D0%B4/%CE%A9/'),
            'url10': ('{% url "template_tests.views.client_action" id=client.id action="two words" %}', {'client': {'id': 1}}, '/url_tag/client/1/two%20words/'),
            'url11': ('{% url "template_tests.views.client_action" id=client.id action="==" %}', {'client': {'id': 1}}, '/url_tag/client/1/%3D%3D/'),
            'url12': ('{% url "template_tests.views.client_action" id=client.id action="," %}', {'client': {'id': 1}}, '/url_tag/client/1/%2C/'),
            'url13': ('{% url "template_tests.views.client_action" id=client.id action=arg|join:"-" %}', {'client': {'id': 1}, 'arg':['a','b']}, '/url_tag/client/1/a-b/'),
            'url14': ('{% url "template_tests.views.client_action" client.id arg|join:"-" %}', {'client': {'id': 1}, 'arg':['a','b']}, '/url_tag/client/1/a-b/'),
            'url15': ('{% url "template_tests.views.client_action" 12 "test" %}', {}, '/url_tag/client/12/test/'),
            'url18': ('{% url "template_tests.views.client" "1,2" %}', {}, '/url_tag/client/1%2C2/'),

            'url19': ('{% url named_url client.id %}', {'named_url': 'template_tests.views.client', 'client': {'id': 1}}, '/url_tag/client/1/'),
            'url20': ('{% url url_name_in_var client.id %}', {'url_name_in_var': 'named.client', 'client': {'id': 1}}, '/url_tag/named-client/1/'),

            # Failures
            'url-fail01': ('{% url %}', {}, template.TemplateSyntaxError),
            'url-fail02': ('{% url "no_such_view" %}', {}, (urlresolvers.NoReverseMatch, urlresolvers.NoReverseMatch)),
            'url-fail03': ('{% url "template_tests.views.client" %}', {}, (urlresolvers.NoReverseMatch, urlresolvers.NoReverseMatch)),
            'url-fail04': ('{% url "view" id, %}', {}, template.TemplateSyntaxError),
            'url-fail05': ('{% url "view" id= %}', {}, template.TemplateSyntaxError),
            'url-fail06': ('{% url "view" a.id=id %}', {}, template.TemplateSyntaxError),
            'url-fail07': ('{% url "view" a.id!id %}', {}, template.TemplateSyntaxError),
            'url-fail08': ('{% url "view" id="unterminatedstring %}', {}, template.TemplateSyntaxError),
            'url-fail09': ('{% url "view" id=", %}', {}, template.TemplateSyntaxError),

            'url-fail11': ('{% url named_url %}', {}, (urlresolvers.NoReverseMatch, urlresolvers.NoReverseMatch)),
            'url-fail12': ('{% url named_url %}', {'named_url': 'no_such_view'}, (urlresolvers.NoReverseMatch, urlresolvers.NoReverseMatch)),
            'url-fail13': ('{% url named_url %}', {'named_url': 'template_tests.views.client'}, (urlresolvers.NoReverseMatch, urlresolvers.NoReverseMatch)),
            'url-fail14': ('{% url named_url id, %}', {'named_url': 'view'}, template.TemplateSyntaxError),
            'url-fail15': ('{% url named_url id= %}', {'named_url': 'view'}, template.TemplateSyntaxError),
            'url-fail16': ('{% url named_url a.id=id %}', {'named_url': 'view'}, template.TemplateSyntaxError),
            'url-fail17': ('{% url named_url a.id!id %}', {'named_url': 'view'}, template.TemplateSyntaxError),
            'url-fail18': ('{% url named_url id="unterminatedstring %}', {'named_url': 'view'}, template.TemplateSyntaxError),
            'url-fail19': ('{% url named_url id=", %}', {'named_url': 'view'}, template.TemplateSyntaxError),

            # {% url ... as var %}
            'url-asvar01': ('{% url "template_tests.views.index" as url %}', {}, ''),
            'url-asvar02': ('{% url "template_tests.views.index" as url %}{{ url }}', {}, '/url_tag/'),
            'url-asvar03': ('{% url "no_such_view" as url %}{{ url }}', {}, ''),

            ### CACHE TAG ######################################################
            'cache03': ('{% load cache %}{% cache 2 test %}cache03{% endcache %}', {}, 'cache03'),
            'cache04': ('{% load cache %}{% cache 2 test %}cache04{% endcache %}', {}, 'cache03'),
            'cache05': ('{% load cache %}{% cache 2 test foo %}cache05{% endcache %}', {'foo': 1}, 'cache05'),
            'cache06': ('{% load cache %}{% cache 2 test foo %}cache06{% endcache %}', {'foo': 2}, 'cache06'),
            'cache07': ('{% load cache %}{% cache 2 test foo %}cache07{% endcache %}', {'foo': 1}, 'cache05'),

            # Allow first argument to be a variable.
            'cache08': ('{% load cache %}{% cache time test foo %}cache08{% endcache %}', {'foo': 2, 'time': 2}, 'cache06'),

            # Raise exception if we don't have at least 2 args, first one integer.
            'cache11': ('{% load cache %}{% cache %}{% endcache %}', {}, template.TemplateSyntaxError),
            'cache12': ('{% load cache %}{% cache 1 %}{% endcache %}', {}, template.TemplateSyntaxError),
            'cache13': ('{% load cache %}{% cache foo bar %}{% endcache %}', {}, template.TemplateSyntaxError),
            'cache14': ('{% load cache %}{% cache foo bar %}{% endcache %}', {'foo': 'fail'}, template.TemplateSyntaxError),
            'cache15': ('{% load cache %}{% cache foo bar %}{% endcache %}', {'foo': []}, template.TemplateSyntaxError),

            # Regression test for #7460.
            'cache16': ('{% load cache %}{% cache 1 foo bar %}{% endcache %}', {'foo': 'foo', 'bar': 'with spaces'}, ''),

            # Regression test for #11270.
            'cache17': ('{% load cache %}{% cache 10 long_cache_key poem %}Some Content{% endcache %}', {'poem': 'Oh freddled gruntbuggly/Thy micturations are to me/As plurdled gabbleblotchits/On a lurgid bee/That mordiously hath bitled out/Its earted jurtles/Into a rancid festering/Or else I shall rend thee in the gobberwarts with my blurglecruncheon/See if I dont.'}, 'Some Content'),

            # Test whitespace in filter arguments
            'cache18': ('{% load cache custom %}{% cache 2|noop:"x y" cache18 %}cache18{% endcache %}', {}, 'cache18'),


            ### AUTOESCAPE TAG ##############################################
            'autoescape-tag01': ("{% autoescape off %}hello{% endautoescape %}", {}, "hello"),
            'autoescape-tag02': ("{% autoescape off %}{{ first }}{% endautoescape %}", {"first": "<b>hello</b>"}, "<b>hello</b>"),
            'autoescape-tag03': ("{% autoescape on %}{{ first }}{% endautoescape %}", {"first": "<b>hello</b>"}, "&lt;b&gt;hello&lt;/b&gt;"),

            # Autoescape disabling and enabling nest in a predictable way.
            'autoescape-tag04': ("{% autoescape off %}{{ first }} {% autoescape  on%}{{ first }}{% endautoescape %}{% endautoescape %}", {"first": "<a>"}, "<a> &lt;a&gt;"),

            'autoescape-tag05': ("{% autoescape on %}{{ first }}{% endautoescape %}", {"first": "<b>first</b>"}, "&lt;b&gt;first&lt;/b&gt;"),

            # Strings (ASCII or unicode) already marked as "safe" are not
            # auto-escaped
            'autoescape-tag06': ("{{ first }}", {"first": mark_safe("<b>first</b>")}, "<b>first</b>"),
            'autoescape-tag07': ("{% autoescape on %}{{ first }}{% endautoescape %}", {"first": mark_safe("<b>Apple</b>")}, "<b>Apple</b>"),

            # Literal string arguments to filters, if used in the result, are
            # safe.
            'autoescape-tag08': (r'{% autoescape on %}{{ var|default_if_none:" endquote\" hah" }}{% endautoescape %}', {"var": None}, ' endquote" hah'),

            # Objects which return safe strings as their __unicode__ method
            # won't get double-escaped.
            'autoescape-tag09': (r'{{ unsafe }}', {'unsafe': filters.UnsafeClass()}, 'you &amp; me'),
            'autoescape-tag10': (r'{{ safe }}', {'safe': filters.SafeClass()}, 'you &gt; me'),

            # The "safe" and "escape" filters cannot work due to internal
            # implementation details (fortunately, the (no)autoescape block
            # tags can be used in those cases)
            'autoescape-filtertag01': ("{{ first }}{% filter safe %}{{ first }} x<y{% endfilter %}", {"first": "<a>"}, template.TemplateSyntaxError),

            # ifqeual compares unescaped vales.
            'autoescape-ifequal01': ('{% ifequal var "this & that" %}yes{% endifequal %}', { "var": "this & that" }, "yes"),

            # Arguments to filters are 'safe' and manipulate their input unescaped.
            'autoescape-filters01': ('{{ var|cut:"&" }}', { "var": "this & that" }, "this  that" ),
            'autoescape-filters02': ('{{ var|join:" & \" }}', { "var": ("Tom", "Dick", "Harry") }, "Tom & Dick & Harry"),

            # Literal strings are safe.
            'autoescape-literals01': ('{{ "this & that" }}',{}, "this & that"),

            # Iterating over strings outputs safe characters.
            'autoescape-stringiterations01': ('{% for l in var %}{{ l }},{% endfor %}', {'var': 'K&R'}, "K,&amp;,R,"),

            # Escape requirement survives lookup.
            'autoescape-lookup01': ('{{ var.key }}', { "var": {"key": "this & that" }}, "this &amp; that"),

            # Static template tags
            'static-prefixtag01': ('{% load static %}{% get_static_prefix %}', {}, settings.STATIC_URL),
            'static-prefixtag02': ('{% load static %}{% get_static_prefix as static_prefix %}{{ static_prefix }}', {}, settings.STATIC_URL),
            'static-prefixtag03': ('{% load static %}{% get_media_prefix %}', {}, settings.MEDIA_URL),
            'static-prefixtag04': ('{% load static %}{% get_media_prefix as media_prefix %}{{ media_prefix }}', {}, settings.MEDIA_URL),
            'static-statictag01': ('{% load static %}{% static "admin/base.css" %}', {}, urljoin(settings.STATIC_URL, 'admin/base.css')),
            'static-statictag02': ('{% load static %}{% static base_css %}', {'base_css': 'admin/base.css'}, urljoin(settings.STATIC_URL, 'admin/base.css')),
            'static-statictag03': ('{% load static %}{% static "admin/base.css" as foo %}{{ foo }}', {}, urljoin(settings.STATIC_URL, 'admin/base.css')),
            'static-statictag04': ('{% load static %}{% static base_css as foo %}{{ foo }}', {'base_css': 'admin/base.css'}, urljoin(settings.STATIC_URL, 'admin/base.css')),

            # Verbatim template tag outputs contents without rendering.
            'verbatim-tag01': ('{% verbatim %}{{bare   }}{% endverbatim %}', {}, '{{bare   }}'),
            'verbatim-tag02': ('{% verbatim %}{% endif %}{% endverbatim %}', {}, '{% endif %}'),
            'verbatim-tag03': ("{% verbatim %}It's the {% verbatim %} tag{% endverbatim %}", {}, "It's the {% verbatim %} tag"),
            'verbatim-tag04': ('{% verbatim %}{% verbatim %}{% endverbatim %}{% endverbatim %}', {}, template.TemplateSyntaxError),
            'verbatim-tag05': ('{% verbatim %}{% endverbatim %}{% verbatim %}{% endverbatim %}', {}, ''),
            'verbatim-tag06': ("{% verbatim special %}Don't {% endverbatim %} just yet{% endverbatim special %}", {}, "Don't {% endverbatim %} just yet"),
        }

        if numpy:
            tests.update({
                # Numpy's array-index syntax allows a template to access a certain item of a subscriptable object.
                'numpy-array-index01': ("{{ var.1 }}", {"var": numpy.array(["first item", "second item"])}, "second item"),

                # Fail silently when the array index is out of range.
                'numpy-array-index02': ("{{ var.5 }}", {"var": numpy.array(["first item", "second item"])}, ("", "INVALID")),
            })


        return tests

class TemplateTagLoading(unittest.TestCase):

    def setUp(self):
        self.old_path = sys.path[:]
        self.old_apps = settings.INSTALLED_APPS
        self.egg_dir = '%s/eggs' % os.path.dirname(upath(__file__))
        self.old_tag_modules = template_base.templatetags_modules
        template_base.templatetags_modules = []

    def tearDown(self):
        settings.INSTALLED_APPS = self.old_apps
        sys.path = self.old_path
        template_base.templatetags_modules = self.old_tag_modules

    def test_load_error(self):
        ttext = "{% load broken_tag %}"
        self.assertRaises(template.TemplateSyntaxError, template.Template, ttext)
        try:
            template.Template(ttext)
        except template.TemplateSyntaxError as e:
            self.assertTrue('ImportError' in e.args[0])
            self.assertTrue('Xtemplate' in e.args[0])

    def test_load_error_egg(self):
        ttext = "{% load broken_egg %}"
        egg_name = '%s/tagsegg.egg' % self.egg_dir
        sys.path.append(egg_name)
        settings.INSTALLED_APPS = ('tagsegg',)
        self.assertRaises(template.TemplateSyntaxError, template.Template, ttext)
        try:
            template.Template(ttext)
        except template.TemplateSyntaxError as e:
            self.assertTrue('ImportError' in e.args[0])
            self.assertTrue('Xtemplate' in e.args[0])

    def test_load_working_egg(self):
        ttext = "{% load working_egg %}"
        egg_name = '%s/tagsegg.egg' % self.egg_dir
        sys.path.append(egg_name)
        settings.INSTALLED_APPS = ('tagsegg',)
        t = template.Template(ttext)


class RequestContextTests(unittest.TestCase):

    def setUp(self):
        templates = {
            'child': Template('{{ var|default:"none" }}'),
        }
        setup_test_template_loader(templates)
        self.fake_request = RequestFactory().get('/')

    def tearDown(self):
        restore_template_loaders()

    def test_include_only(self):
        """
        Regression test for #15721, ``{% include %}`` and ``RequestContext``
        not playing together nicely.
        """
        ctx = RequestContext(self.fake_request, {'var': 'parent'})
        self.assertEqual(
            template.Template('{% include "child" %}').render(ctx),
            'parent'
        )
        self.assertEqual(
            template.Template('{% include "child" only %}').render(ctx),
            'none'
        )