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655f524915
* Converted the ``libraries`` and ``builtins`` globals of ``django.template.base`` into properties of the Engine class. * Added a public API for explicit registration of libraries and builtins.
130 lines
4.7 KiB
Python
130 lines
4.7 KiB
Python
from template_tests.test_response import test_processor_name
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from django.template import RequestContext
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from django.template.backends.django import DjangoTemplates
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from django.template.library import InvalidTemplateLibrary
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from django.test import RequestFactory, ignore_warnings, override_settings
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from django.utils.deprecation import RemovedInDjango20Warning
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from .test_dummy import TemplateStringsTests
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class DjangoTemplatesTests(TemplateStringsTests):
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engine_class = DjangoTemplates
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backend_name = 'django'
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def test_context_has_priority_over_template_context_processors(self):
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# See ticket #23789.
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engine = DjangoTemplates({
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'DIRS': [],
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'APP_DIRS': False,
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'NAME': 'django',
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'OPTIONS': {
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'context_processors': [test_processor_name],
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},
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})
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template = engine.from_string('{{ processors }}')
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request = RequestFactory().get('/')
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# Check that context processors run
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content = template.render({}, request)
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self.assertEqual(content, 'yes')
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# Check that context overrides context processors
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content = template.render({'processors': 'no'}, request)
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self.assertEqual(content, 'no')
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@ignore_warnings(category=RemovedInDjango20Warning)
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def test_request_context_conflicts_with_request(self):
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template = self.engine.from_string('hello')
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request = RequestFactory().get('/')
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request_context = RequestContext(request)
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# This doesn't raise an exception.
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template.render(request_context, request)
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other_request = RequestFactory().get('/')
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msg = ("render() was called with a RequestContext and a request "
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"argument which refer to different requests. Make sure "
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"that the context argument is a dict or at least that "
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"the two arguments refer to the same request.")
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with self.assertRaisesMessage(ValueError, msg):
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template.render(request_context, other_request)
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@override_settings(INSTALLED_APPS=['template_backends.apps.good'])
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def test_templatetag_discovery(self):
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engine = DjangoTemplates({
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'DIRS': [],
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'APP_DIRS': False,
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'NAME': 'django',
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'OPTIONS': {
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'libraries': {
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'alternate': 'template_backends.apps.good.templatetags.good_tags',
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'override': 'template_backends.apps.good.templatetags.good_tags',
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},
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},
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})
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# libraries are discovered from installed applications
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self.assertEqual(
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engine.engine.libraries['good_tags'],
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'template_backends.apps.good.templatetags.good_tags',
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)
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self.assertEqual(
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engine.engine.libraries['subpackage.tags'],
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'template_backends.apps.good.templatetags.subpackage.tags',
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)
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# libraries are discovered from django.templatetags
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self.assertEqual(
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engine.engine.libraries['static'],
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'django.templatetags.static',
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)
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# libraries passed in OPTIONS are registered
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self.assertEqual(
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engine.engine.libraries['alternate'],
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'template_backends.apps.good.templatetags.good_tags',
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)
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# libraries passed in OPTIONS take precedence over discovered ones
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self.assertEqual(
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engine.engine.libraries['override'],
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'template_backends.apps.good.templatetags.good_tags',
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)
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@override_settings(INSTALLED_APPS=['template_backends.apps.importerror'])
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def test_templatetag_discovery_import_error(self):
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"""
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Import errors in tag modules should be reraised with a helpful message.
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"""
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with self.assertRaisesMessage(
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InvalidTemplateLibrary,
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"ImportError raised when trying to load "
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"'template_backends.apps.importerror.templatetags.broken_tags'"
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):
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DjangoTemplates({
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'DIRS': [],
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'APP_DIRS': False,
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'NAME': 'django',
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'OPTIONS': {},
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})
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def test_builtins_discovery(self):
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engine = DjangoTemplates({
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'DIRS': [],
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'APP_DIRS': False,
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'NAME': 'django',
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'OPTIONS': {
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'builtins': ['template_backends.apps.good.templatetags.good_tags'],
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},
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})
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self.assertEqual(
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engine.engine.builtins, [
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'django.template.defaulttags',
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'django.template.defaultfilters',
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'django.template.loader_tags',
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'template_backends.apps.good.templatetags.good_tags',
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]
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)
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