class CachedLoaderTests(SimpleTestCase):
def setUp(self):
self.engine = Engine(
dirs=[TEMPLATE_DIR],
loaders=[
('django.template.loaders.cached.Loader', [
'django.template.loaders.filesystem.Loader',
]),
],
)
def test_get_template(self):
template = self.engine.get_template('index.html')
self.assertEqual(template.origin.name, os.path.join(TEMPLATE_DIR, 'index.html'))
self.assertEqual(template.origin.template_name, 'index.html')
self.assertEqual(template.origin.loader, self.engine.template_loaders[0].loaders[0])
cache = self.engine.template_loaders[0].get_template_cache
self.assertEqual(cache['index.html'], template)
# Run a second time from cache
template = self.engine.get_template('index.html')
self.assertEqual(template.origin.name, os.path.join(TEMPLATE_DIR, 'index.html'))
self.assertEqual(template.origin.template_name, 'index.html')
self.assertEqual(template.origin.loader, self.engine.template_loaders[0].loaders[0])
def test_get_template_missing_debug_off(self):
"""
With template debugging disabled, the raw TemplateDoesNotExist class
should be cached when a template is missing. See ticket #26306 and
docstrings in the cached loader for details.
"""
self.engine.debug = False
with self.assertRaises(TemplateDoesNotExist):
self.engine.get_template('prod-template-missing.html')
e = self.engine.template_loaders[0].get_template_cache['prod-template-missing.html']
self.assertEqual(e, TemplateDoesNotExist)
def test_get_template_missing_debug_on(self):
"""
With template debugging enabled, a TemplateDoesNotExist instance
should be cached when a template is missing.
"""
self.engine.debug = True
with self.assertRaises(TemplateDoesNotExist):
self.engine.get_template('debug-template-missing.html')
e = self.engine.template_loaders[0].get_template_cache['debug-template-missing.html']
self.assertIsInstance(e, TemplateDoesNotExist)
self.assertEqual(e.args[0], 'debug-template-missing.html')
@unittest.skipIf(six.PY2, "Python 2 doesn't set extra exception attributes")
def test_cached_exception_no_traceback(self):
"""
When a TemplateDoesNotExist instance is cached, the cached instance
should not contain the __traceback__, __context__, or __cause__
attributes that Python sets when raising exceptions.
"""
self.engine.debug = True
with self.assertRaises(TemplateDoesNotExist):
self.engine.get_template('no-traceback-in-cache.html')
e = self.engine.template_loaders[0].get_template_cache['no-traceback-in-cache.html']
error_msg = "Cached TemplateDoesNotExist must not have been thrown."
self.assertIsNone(e.__traceback__, error_msg)
self.assertIsNone(e.__context__, error_msg)
self.assertIsNone(e.__cause__, error_msg)
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_template(self):
loader = self.engine.template_loaders[0]
template, origin = loader.load_template('index.html')
self.assertEqual(template.origin.template_name, 'index.html')
cache = self.engine.template_loaders[0].template_cache
self.assertEqual(cache['index.html'][0], template)
# Run a second time from cache
loader = self.engine.template_loaders[0]
source, name = loader.load_template('index.html')
self.assertEqual(template.origin.template_name, 'index.html')
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_template_missing(self):
"""
#19949 -- TemplateDoesNotExist exceptions should be cached.
"""
loader = self.engine.template_loaders[0]
self.assertFalse('missing.html' in loader.template_cache)
with self.assertRaises(TemplateDoesNotExist):
loader.load_template("missing.html")
self.assertEqual(
loader.template_cache["missing.html"],
TemplateDoesNotExist,
"Cached loader failed to cache the TemplateDoesNotExist exception",
)
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_nonexistent_cached_template(self):
loader = self.engine.template_loaders[0]
template_name = 'nonexistent.html'
# fill the template cache
with self.assertRaises(TemplateDoesNotExist):
loader.find_template(template_name)
with self.assertRaisesMessage(TemplateDoesNotExist, template_name):
loader.get_template(template_name)
def test_templatedir_caching(self):
"""
#13573 -- Template directories should be part of the cache key.
"""
# Retrieve a template specifying a template directory to check
t1, name = self.engine.find_template('test.html', (os.path.join(TEMPLATE_DIR, 'first'),))
# Now retrieve the same template name, but from a different directory
t2, name = self.engine.find_template('test.html', (os.path.join(TEMPLATE_DIR, 'second'),))
# The two templates should not have the same content
self.assertNotEqual(t1.render(Context({})), t2.render(Context({})))
class CachedLoaderTests(SimpleTestCase):
def setUp(self):
self.engine = Engine(
dirs=[TEMPLATE_DIR],
loaders=[
('django.template.loaders.cached.Loader', [
'django.template.loaders.filesystem.Loader',
]),
],
)
def test_get_template(self):
template = self.engine.get_template('index.html')
self.assertEqual(template.origin.name, os.path.join(TEMPLATE_DIR, 'index.html'))
self.assertEqual(template.origin.template_name, 'index.html')
self.assertEqual(template.origin.loader, self.engine.template_loaders[0].loaders[0])
cache = self.engine.template_loaders[0].get_template_cache
self.assertEqual(cache['index.html'], template)
# Run a second time from cache
template = self.engine.get_template('index.html')
self.assertEqual(template.origin.name, os.path.join(TEMPLATE_DIR, 'index.html'))
self.assertEqual(template.origin.template_name, 'index.html')
self.assertEqual(template.origin.loader, self.engine.template_loaders[0].loaders[0])
def test_get_template_missing_debug_off(self):
"""
With template debugging disabled, the raw TemplateDoesNotExist class
should be cached when a template is missing. See ticket #26306 and
docstrings in the cached loader for details.
"""
self.engine.debug = False
with self.assertRaises(TemplateDoesNotExist):
self.engine.get_template('prod-template-missing.html')
e = self.engine.template_loaders[0].get_template_cache['prod-template-missing.html']
self.assertEqual(e, TemplateDoesNotExist)
def test_get_template_missing_debug_on(self):
"""
With template debugging enabled, a TemplateDoesNotExist instance
should be cached when a template is missing.
"""
self.engine.debug = True
with self.assertRaises(TemplateDoesNotExist):
self.engine.get_template('debug-template-missing.html')
e = self.engine.template_loaders[0].get_template_cache['debug-template-missing.html']
self.assertIsInstance(e, TemplateDoesNotExist)
self.assertEqual(e.args[0], 'debug-template-missing.html')
@unittest.skipIf(six.PY2, "Python 2 doesn't set extra exception attributes")
def test_cached_exception_no_traceback(self):
"""
When a TemplateDoesNotExist instance is cached, the cached instance
should not contain the __traceback__, __context__, or __cause__
attributes that Python sets when raising exceptions.
"""
self.engine.debug = True
with self.assertRaises(TemplateDoesNotExist):
self.engine.get_template('no-traceback-in-cache.html')
e = self.engine.template_loaders[0].get_template_cache['no-traceback-in-cache.html']
error_msg = "Cached TemplateDoesNotExist must not have been thrown."
self.assertIsNone(e.__traceback__, error_msg)
self.assertIsNone(e.__context__, error_msg)
self.assertIsNone(e.__cause__, error_msg)
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_template(self):
loader = self.engine.template_loaders[0]
template, origin = loader.load_template('index.html')
self.assertEqual(template.origin.template_name, 'index.html')
cache = self.engine.template_loaders[0].template_cache
self.assertEqual(cache['index.html'][0], template)
# Run a second time from cache
loader = self.engine.template_loaders[0]
source, name = loader.load_template('index.html')
self.assertEqual(template.origin.template_name, 'index.html')
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_template_missing(self):
"""
#19949 -- TemplateDoesNotExist exceptions should be cached.
"""
loader = self.engine.template_loaders[0]
self.assertFalse('missing.html' in loader.template_cache)
with self.assertRaises(TemplateDoesNotExist):
loader.load_template("missing.html")
self.assertEqual(
loader.template_cache["missing.html"],
TemplateDoesNotExist,
"Cached loader failed to cache the TemplateDoesNotExist exception",
)
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_nonexistent_cached_template(self):
loader = self.engine.template_loaders[0]
template_name = 'nonexistent.html'
# fill the template cache
with self.assertRaises(TemplateDoesNotExist):
loader.find_template(template_name)
with self.assertRaisesMessage(TemplateDoesNotExist, template_name):
loader.get_template(template_name)
def test_templatedir_caching(self):
"""
#13573 -- Template directories should be part of the cache key.
"""
# Retrieve a template specifying a template directory to check
t1, name = self.engine.find_template('test.html', (os.path.join(TEMPLATE_DIR, 'first'),))
# Now retrieve the same template name, but from a different directory
t2, name = self.engine.find_template('test.html', (os.path.join(TEMPLATE_DIR, 'second'),))
# The two templates should not have the same content
self.assertNotEqual(t1.render(Context({})), t2.render(Context({})))
def test_template_name_leading_dash_caching(self):
"""
#26536 -- A leading dash in a template name shouldn't be stripped
from its cache key.
"""
self.assertEqual(self.engine.template_loaders[0].cache_key('-template.html', []), '-template.html')
def test_template_name_lazy_string(self):
"""
#26603 -- A template name specified as a lazy string should be forced
to text before computing its cache key.
"""
self.assertEqual(self.engine.template_loaders[0].cache_key(lazystr('template.html'), []), 'template.html')
class CachedLoaderTests(SimpleTestCase):
def setUp(self):
self.engine = Engine(
dirs=[TEMPLATE_DIR],
loaders=[
('django.template.loaders.cached.Loader', [
'django.template.loaders.filesystem.Loader',
]),
],
)
def test_get_template(self):
template = self.engine.get_template('index.html')
self.assertEqual(template.origin.name, os.path.join(TEMPLATE_DIR, 'index.html'))
self.assertEqual(template.origin.template_name, 'index.html')
self.assertEqual(template.origin.loader, self.engine.template_loaders[0].loaders[0])
cache = self.engine.template_loaders[0].get_template_cache
self.assertEqual(cache['index.html'], template)
# Run a second time from cache
template = self.engine.get_template('index.html')
self.assertEqual(template.origin.name, os.path.join(TEMPLATE_DIR, 'index.html'))
self.assertEqual(template.origin.template_name, 'index.html')
self.assertEqual(template.origin.loader, self.engine.template_loaders[0].loaders[0])
def test_get_template_missing(self):
with self.assertRaises(TemplateDoesNotExist):
self.engine.get_template('doesnotexist.html')
e = self.engine.template_loaders[0].get_template_cache['doesnotexist.html']
self.assertEqual(e.args[0], 'doesnotexist.html')
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_template(self):
loader = self.engine.template_loaders[0]
template, origin = loader.load_template('index.html')
self.assertEqual(template.origin.template_name, 'index.html')
cache = self.engine.template_loaders[0].template_cache
self.assertEqual(cache['index.html'][0], template)
# Run a second time from cache
loader = self.engine.template_loaders[0]
source, name = loader.load_template('index.html')
self.assertEqual(template.origin.template_name, 'index.html')
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_template_missing(self):
"""
#19949 -- TemplateDoesNotExist exceptions should be cached.
"""
loader = self.engine.template_loaders[0]
self.assertFalse('missing.html' in loader.template_cache)
with self.assertRaises(TemplateDoesNotExist):
loader.load_template("missing.html")
self.assertEqual(
loader.template_cache["missing.html"],
TemplateDoesNotExist,
"Cached loader failed to cache the TemplateDoesNotExist exception",
)
@ignore_warnings(category=RemovedInDjango20Warning)
def test_load_nonexistent_cached_template(self):
loader = self.engine.template_loaders[0]
template_name = 'nonexistent.html'
# fill the template cache
with self.assertRaises(TemplateDoesNotExist):
loader.find_template(template_name)
with self.assertRaisesMessage(TemplateDoesNotExist, template_name):
loader.get_template(template_name)
def test_templatedir_caching(self):
"""
#13573 -- Template directories should be part of the cache key.
"""
# Retrieve a template specifying a template directory to check
t1, name = self.engine.find_template('test.html', (os.path.join(TEMPLATE_DIR, 'first'),))
# Now retrieve the same template name, but from a different directory
t2, name = self.engine.find_template('test.html', (os.path.join(TEMPLATE_DIR, 'second'),))
# The two templates should not have the same content
self.assertNotEqual(t1.render(Context({})), t2.render(Context({})))
