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import os
from django.template import Context
from django.template.engine import Engine
from django.test import SimpleTestCase, ignore_warnings
from django.utils.deprecation import RemovedInDjango110Warning
from .utils import ROOT, TEMPLATE_DIR
OTHER_DIR = os.path.join(ROOT, 'other_templates')
@ignore_warnings(category=RemovedInDjango110Warning)
class DeprecatedRenderToStringTest(SimpleTestCase):
def setUp(self):
self.engine = Engine(
dirs=[TEMPLATE_DIR],
libraries={'custom': 'template_tests.templatetags.custom'},
)
def test_basic_context(self):
self.assertEqual(
self.engine.render_to_string('test_context.html', {'obj': 'test'}),
'obj:test\n',
)
def test_existing_context_kept_clean(self):
context = Context({'obj': 'before'})
output = self.engine.render_to_string(
'test_context.html', {'obj': 'after'}, context_instance=context,
)
self.assertEqual(output, 'obj:after\n')
self.assertEqual(context['obj'], 'before')
def test_no_empty_dict_pushed_to_stack(self):
"""
#21741 -- An empty dict should not be pushed to the context stack when
render_to_string is called without a context argument.
"""
# The stack should have a length of 1, corresponding to the builtins
self.assertEqual(
'1',
self.engine.render_to_string('test_context_stack.html').strip(),
)
self.assertEqual(
'1',
self.engine.render_to_string(
'test_context_stack.html',
context_instance=Context()
).strip(),
)
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 -- Check that 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):
"""
Check that 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')
@ignore_warnings(category=RemovedInDjango110Warning)
class TemplateDirsOverrideTests(SimpleTestCase):
DIRS = ((OTHER_DIR, ), [OTHER_DIR])
def setUp(self):
self.engine = Engine()
def test_render_to_string(self):
for dirs in self.DIRS:
self.assertEqual(
self.engine.render_to_string('test_dirs.html', dirs=dirs),
'spam eggs\n',
)
def test_get_template(self):
for dirs in self.DIRS:
template = self.engine.get_template('test_dirs.html', dirs=dirs)
self.assertEqual(template.render(Context()), 'spam eggs\n')
def test_select_template(self):
for dirs in self.DIRS:
template = self.engine.select_template(['test_dirs.html'], dirs=dirs)
self.assertEqual(template.render(Context()), 'spam eggs\n')
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