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from django.template import TemplateDoesNotExist
from django.template.loader import (
get_template, render_to_string, select_template,
)
from django.test import SimpleTestCase, override_settings
from django.test.client import RequestFactory
@override_settings(TEMPLATES=[{
'BACKEND': 'django.template.backends.dummy.TemplateStrings',
'APP_DIRS': True,
}, {
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'OPTIONS': {
'context_processors': [
'django.template.context_processors.request',
],
'loaders': [
'django.template.loaders.filesystem.Loader',
'django.template.loaders.app_directories.Loader',
]
},
}])
class TemplateLoaderTests(SimpleTestCase):
def test_get_template_first_engine(self):
template = get_template("template_loader/hello.html")
self.assertEqual(template.render(), "Hello! (template strings)\n")
def test_get_template_second_engine(self):
template = get_template("template_loader/goodbye.html")
self.assertEqual(template.render(), "Goodbye! (Django templates)\n")
def test_get_template_using_engine(self):
template = get_template("template_loader/hello.html", using="django")
self.assertEqual(template.render(), "Hello! (Django templates)\n")
def test_get_template_not_found(self):
with self.assertRaises(TemplateDoesNotExist) as e:
get_template("template_loader/unknown.html")
self.assertEqual(
e.exception.chain[-1].tried[0][0].template_name,
'template_loader/unknown.html',
)
self.assertEqual(e.exception.chain[-1].backend.name, 'django')
def test_select_template_first_engine(self):
template = select_template(["template_loader/unknown.html",
"template_loader/hello.html"])
self.assertEqual(template.render(), "Hello! (template strings)\n")
def test_select_template_second_engine(self):
template = select_template(["template_loader/unknown.html",
"template_loader/goodbye.html"])
self.assertEqual(template.render(), "Goodbye! (Django templates)\n")
def test_select_template_using_engine(self):
template = select_template(["template_loader/unknown.html",
"template_loader/hello.html"], using="django")
self.assertEqual(template.render(), "Hello! (Django templates)\n")
def test_select_template_empty(self):
with self.assertRaises(TemplateDoesNotExist):
select_template([])
def test_select_template_string(self):
with self.assertRaisesMessage(
TypeError,
"select_template() takes an iterable of template names but got a "
"string: 'template_loader/hello.html'. Use get_template() if you "
"want to load a single template by name."
):
select_template('template_loader/hello.html')
def test_select_template_not_found(self):
with self.assertRaises(TemplateDoesNotExist) as e:
select_template(["template_loader/unknown.html",
"template_loader/missing.html"])
self.assertEqual(
e.exception.chain[0].tried[0][0].template_name,
'template_loader/unknown.html',
)
self.assertEqual(e.exception.chain[0].backend.name, 'dummy')
self.assertEqual(
e.exception.chain[-1].tried[0][0].template_name,
'template_loader/missing.html',
)
self.assertEqual(e.exception.chain[-1].backend.name, 'django')
def test_select_template_tries_all_engines_before_names(self):
template = select_template(["template_loader/goodbye.html",
"template_loader/hello.html"])
self.assertEqual(template.render(), "Goodbye! (Django templates)\n")
def test_render_to_string_first_engine(self):
content = render_to_string("template_loader/hello.html")
self.assertEqual(content, "Hello! (template strings)\n")
def test_render_to_string_second_engine(self):
content = render_to_string("template_loader/goodbye.html")
self.assertEqual(content, "Goodbye! (Django templates)\n")
def test_render_to_string_with_request(self):
request = RequestFactory().get('/foobar/')
content = render_to_string("template_loader/request.html", request=request)
self.assertEqual(content, "/foobar/\n")
def test_render_to_string_using_engine(self):
content = render_to_string("template_loader/hello.html", using="django")
self.assertEqual(content, "Hello! (Django templates)\n")
def test_render_to_string_not_found(self):
with self.assertRaises(TemplateDoesNotExist) as e:
render_to_string("template_loader/unknown.html")
self.assertEqual(
e.exception.chain[-1].tried[0][0].template_name,
'template_loader/unknown.html',
)
self.assertEqual(e.exception.chain[-1].backend.name, 'django')
def test_render_to_string_with_list_first_engine(self):
content = render_to_string(["template_loader/unknown.html",
"template_loader/hello.html"])
self.assertEqual(content, "Hello! (template strings)\n")
def test_render_to_string_with_list_second_engine(self):
content = render_to_string(["template_loader/unknown.html",
"template_loader/goodbye.html"])
self.assertEqual(content, "Goodbye! (Django templates)\n")
def test_render_to_string_with_list_using_engine(self):
content = render_to_string(["template_loader/unknown.html",
"template_loader/hello.html"], using="django")
self.assertEqual(content, "Hello! (Django templates)\n")
def test_render_to_string_with_list_empty(self):
with self.assertRaises(TemplateDoesNotExist):
render_to_string([])
def test_render_to_string_with_list_not_found(self):
with self.assertRaises(TemplateDoesNotExist) as e:
render_to_string(["template_loader/unknown.html",
"template_loader/missing.html"])
self.assertEqual(
e.exception.chain[0].tried[0][0].template_name,
'template_loader/unknown.html',
)
self.assertEqual(e.exception.chain[0].backend.name, 'dummy')
self.assertEqual(
e.exception.chain[1].tried[0][0].template_name,
'template_loader/unknown.html',
)
self.assertEqual(e.exception.chain[1].backend.name, 'django')
self.assertEqual(
e.exception.chain[2].tried[0][0].template_name,
'template_loader/missing.html',
)
self.assertEqual(e.exception.chain[2].backend.name, 'dummy')
self.assertEqual(
e.exception.chain[3].tried[0][0].template_name,
'template_loader/missing.html',
)
self.assertEqual(e.exception.chain[3].backend.name, 'django')
def test_render_to_string_with_list_tries_all_engines_before_names(self):
content = render_to_string(["template_loader/goodbye.html",
"template_loader/hello.html"])
self.assertEqual(content, "Goodbye! (Django templates)\n")
|
