django/tests/template_tests/test_engine.py

143 lines
4.9 KiB
Python

import os
from django.core.exceptions import ImproperlyConfigured
from django.template import Context
from django.template.engine import Engine
from django.test import SimpleTestCase, override_settings
from .utils import ROOT, TEMPLATE_DIR
OTHER_DIR = os.path.join(ROOT, "other_templates")
class EngineTest(SimpleTestCase):
def test_repr_empty(self):
engine = Engine()
self.assertEqual(
repr(engine),
"<Engine: app_dirs=False debug=False loaders=[("
"'django.template.loaders.cached.Loader', "
"['django.template.loaders.filesystem.Loader'])] "
"string_if_invalid='' file_charset='utf-8' builtins=["
"'django.template.defaulttags', 'django.template.defaultfilters', "
"'django.template.loader_tags'] autoescape=True>",
)
def test_repr(self):
engine = Engine(
dirs=[TEMPLATE_DIR],
context_processors=["django.template.context_processors.debug"],
debug=True,
loaders=["django.template.loaders.filesystem.Loader"],
string_if_invalid="x",
file_charset="utf-16",
libraries={"custom": "template_tests.templatetags.custom"},
autoescape=False,
)
self.assertEqual(
repr(engine),
f"<Engine: dirs=[{TEMPLATE_DIR!r}] app_dirs=False "
"context_processors=['django.template.context_processors.debug'] "
"debug=True loaders=['django.template.loaders.filesystem.Loader'] "
"string_if_invalid='x' file_charset='utf-16' "
"libraries={'custom': 'template_tests.templatetags.custom'} "
"builtins=['django.template.defaulttags', "
"'django.template.defaultfilters', 'django.template.loader_tags'] "
"autoescape=False>",
)
class RenderToStringTest(SimpleTestCase):
def setUp(self):
self.engine = Engine(dirs=[TEMPLATE_DIR])
def test_basic_context(self):
self.assertEqual(
self.engine.render_to_string("test_context.html", {"obj": "test"}),
"obj:test\n",
)
def test_autoescape_off(self):
engine = Engine(dirs=[TEMPLATE_DIR], autoescape=False)
self.assertEqual(
engine.render_to_string("test_context.html", {"obj": "<script>"}),
"obj:<script>\n",
)
class GetDefaultTests(SimpleTestCase):
@override_settings(TEMPLATES=[])
def test_no_engines_configured(self):
msg = "No DjangoTemplates backend is configured."
with self.assertRaisesMessage(ImproperlyConfigured, msg):
Engine.get_default()
@override_settings(
TEMPLATES=[
{
"NAME": "default",
"BACKEND": "django.template.backends.django.DjangoTemplates",
"OPTIONS": {"file_charset": "abc"},
}
]
)
def test_single_engine_configured(self):
self.assertEqual(Engine.get_default().file_charset, "abc")
@override_settings(
TEMPLATES=[
{
"NAME": "default",
"BACKEND": "django.template.backends.django.DjangoTemplates",
"OPTIONS": {"file_charset": "abc"},
},
{
"NAME": "other",
"BACKEND": "django.template.backends.django.DjangoTemplates",
"OPTIONS": {"file_charset": "def"},
},
]
)
def test_multiple_engines_configured(self):
self.assertEqual(Engine.get_default().file_charset, "abc")
class LoaderTests(SimpleTestCase):
def test_origin(self):
engine = Engine(dirs=[TEMPLATE_DIR], debug=True)
template = engine.get_template("index.html")
self.assertEqual(template.origin.template_name, "index.html")
def test_loader_priority(self):
"""
#21460 -- The order of template loader works.
"""
loaders = [
"django.template.loaders.filesystem.Loader",
"django.template.loaders.app_directories.Loader",
]
engine = Engine(dirs=[OTHER_DIR, TEMPLATE_DIR], loaders=loaders)
template = engine.get_template("priority/foo.html")
self.assertEqual(template.render(Context()), "priority\n")
def test_cached_loader_priority(self):
"""
The order of template loader works. Refs #21460.
"""
loaders = [
(
"django.template.loaders.cached.Loader",
[
"django.template.loaders.filesystem.Loader",
"django.template.loaders.app_directories.Loader",
],
),
]
engine = Engine(dirs=[OTHER_DIR, TEMPLATE_DIR], loaders=loaders)
template = engine.get_template("priority/foo.html")
self.assertEqual(template.render(Context()), "priority\n")
template = engine.get_template("priority/foo.html")
self.assertEqual(template.render(Context()), "priority\n")