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from django.core.cache import cache
from django.template import Context, Engine, TemplateSyntaxError
from django.test import SimpleTestCase, override_settings
from ..utils import setup
class CacheTagTests(SimpleTestCase):
libraries = {
'cache': 'django.templatetags.cache',
'custom': 'template_tests.templatetags.custom',
}
def tearDown(self):
cache.clear()
@setup({'cache03': '{% load cache %}{% cache 2 test %}cache03{% endcache %}'})
def test_cache03(self):
output = self.engine.render_to_string('cache03')
self.assertEqual(output, 'cache03')
@setup({
'cache03': '{% load cache %}{% cache 2 test %}cache03{% endcache %}',
'cache04': '{% load cache %}{% cache 2 test %}cache04{% endcache %}',
})
def test_cache04(self):
self.engine.render_to_string('cache03')
output = self.engine.render_to_string('cache04')
self.assertEqual(output, 'cache03')
@setup({'cache05': '{% load cache %}{% cache 2 test foo %}cache05{% endcache %}'})
def test_cache05(self):
output = self.engine.render_to_string('cache05', {'foo': 1})
self.assertEqual(output, 'cache05')
@setup({'cache06': '{% load cache %}{% cache 2 test foo %}cache06{% endcache %}'})
def test_cache06(self):
output = self.engine.render_to_string('cache06', {'foo': 2})
self.assertEqual(output, 'cache06')
@setup({
'cache05': '{% load cache %}{% cache 2 test foo %}cache05{% endcache %}',
'cache07': '{% load cache %}{% cache 2 test foo %}cache07{% endcache %}',
})
def test_cache07(self):
context = {'foo': 1}
self.engine.render_to_string('cache05', context)
output = self.engine.render_to_string('cache07', context)
self.assertEqual(output, 'cache05')
@setup({
'cache06': '{% load cache %}{% cache 2 test foo %}cache06{% endcache %}',
'cache08': '{% load cache %}{% cache time test foo %}cache08{% endcache %}',
})
def test_cache08(self):
"""
Allow first argument to be a variable.
"""
context = {'foo': 2, 'time': 2}
self.engine.render_to_string('cache06', context)
output = self.engine.render_to_string('cache08', context)
self.assertEqual(output, 'cache06')
# Raise exception if we don't have at least 2 args, first one integer.
@setup({'cache11': '{% load cache %}{% cache %}{% endcache %}'})
def test_cache11(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.get_template('cache11')
@setup({'cache12': '{% load cache %}{% cache 1 %}{% endcache %}'})
def test_cache12(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.get_template('cache12')
@setup({'cache13': '{% load cache %}{% cache foo bar %}{% endcache %}'})
def test_cache13(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('cache13')
@setup({'cache14': '{% load cache %}{% cache foo bar %}{% endcache %}'})
def test_cache14(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('cache14', {'foo': 'fail'})
@setup({'cache15': '{% load cache %}{% cache foo bar %}{% endcache %}'})
def test_cache15(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('cache15', {'foo': []})
@setup({'cache16': '{% load cache %}{% cache 1 foo bar %}{% endcache %}'})
def test_cache16(self):
"""
Regression test for #7460.
"""
output = self.engine.render_to_string('cache16', {'foo': 'foo', 'bar': 'with spaces'})
self.assertEqual(output, '')
@setup({'cache17': '{% load cache %}{% cache 10 long_cache_key poem %}Some Content{% endcache %}'})
def test_cache17(self):
"""
Regression test for #11270.
"""
output = self.engine.render_to_string(
'cache17',
{
'poem': (
'Oh freddled gruntbuggly/Thy micturations are to me/'
'As plurdled gabbleblotchits/On a lurgid bee/'
'That mordiously hath bitled out/Its earted jurtles/'
'Into a rancid festering/Or else I shall rend thee in the gobberwarts'
'with my blurglecruncheon/See if I don\'t.'
),
}
)
self.assertEqual(output, 'Some Content')
@setup({'cache18': '{% load cache custom %}{% cache 2|noop:"x y" cache18 %}cache18{% endcache %}'})
def test_cache18(self):
"""
Test whitespace in filter arguments
"""
output = self.engine.render_to_string('cache18')
self.assertEqual(output, 'cache18')
@setup({
'first': '{% load cache %}{% cache None fragment19 %}content{% endcache %}',
'second': '{% load cache %}{% cache None fragment19 %}not rendered{% endcache %}'
})
def test_none_timeout(self):
"""A timeout of None means "cache forever"."""
output = self.engine.render_to_string('first')
self.assertEqual(output, 'content')
output = self.engine.render_to_string('second')
self.assertEqual(output, 'content')
class CacheTests(SimpleTestCase):
@classmethod
def setUpClass(cls):
cls.engine = Engine(libraries={'cache': 'django.templatetags.cache'})
super().setUpClass()
def test_cache_regression_20130(self):
t = self.engine.from_string('{% load cache %}{% cache 1 regression_20130 %}foo{% endcache %}')
cachenode = t.nodelist[1]
self.assertEqual(cachenode.fragment_name, 'regression_20130')
@override_settings(CACHES={
'default': {
'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
'LOCATION': 'default',
},
'template_fragments': {
'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
'LOCATION': 'fragments',
},
})
def test_cache_fragment_cache(self):
"""
When a cache called "template_fragments" is present, the cache tag
will use it in preference to 'default'
"""
t1 = self.engine.from_string('{% load cache %}{% cache 1 fragment %}foo{% endcache %}')
t2 = self.engine.from_string('{% load cache %}{% cache 1 fragment using="default" %}bar{% endcache %}')
ctx = Context()
o1 = t1.render(ctx)
o2 = t2.render(ctx)
self.assertEqual(o1, 'foo')
self.assertEqual(o2, 'bar')
def test_cache_missing_backend(self):
"""
When a cache that doesn't exist is specified, the cache tag will
raise a TemplateSyntaxError
'"""
t = self.engine.from_string('{% load cache %}{% cache 1 backend using="unknown" %}bar{% endcache %}')
ctx = Context()
with self.assertRaises(TemplateSyntaxError):
t.render(ctx)
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