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django/tests/regressiontests/templates/nodelist.py
Carl Meyer 4397c587a4 Fixed #16770 -- Eliminated TemplateSyntaxError wrapping of exceptions. Thanks to Justin Myles-Holmes for report and draft patch.
Exceptions raised in templates were previously wrapped in TemplateSyntaxError
(in TEMPLATE_DEBUG mode only) in order to provide template source details on
the debug 500 page. The same debug information is now provided by annotating
exceptions rather than wrapping them. This makes catching exceptions raised
from templates more sane, as it's consistent in or out of DEBUG, and you can
catch the specific exception(s) you care about rather than having to also catch
TemplateSyntaxError and unwrap it.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16833 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-09-16 01:16:25 +00:00

59 lines
2.5 KiB
Python

from django.template import VariableNode, Context
from django.template.loader import get_template_from_string
from django.utils.unittest import TestCase
from django.test.utils import override_settings
class NodelistTest(TestCase):
def test_for(self):
source = '{% for i in 1 %}{{ a }}{% endfor %}'
template = get_template_from_string(source)
vars = template.nodelist.get_nodes_by_type(VariableNode)
self.assertEqual(len(vars), 1)
def test_if(self):
source = '{% if x %}{{ a }}{% endif %}'
template = get_template_from_string(source)
vars = template.nodelist.get_nodes_by_type(VariableNode)
self.assertEqual(len(vars), 1)
def test_ifequal(self):
source = '{% ifequal x y %}{{ a }}{% endifequal %}'
template = get_template_from_string(source)
vars = template.nodelist.get_nodes_by_type(VariableNode)
self.assertEqual(len(vars), 1)
def test_ifchanged(self):
source = '{% ifchanged x %}{{ a }}{% endifchanged %}'
template = get_template_from_string(source)
vars = template.nodelist.get_nodes_by_type(VariableNode)
self.assertEqual(len(vars), 1)
class ErrorIndexTest(TestCase):
"""
Checks whether index of error is calculated correctly in
template debugger in for loops. Refs ticket #5831
"""
@override_settings(DEBUG=True, TEMPLATE_DEBUG = True)
def test_correct_exception_index(self):
tests = [
('{% load bad_tag %}{% for i in range %}{% badsimpletag %}{% endfor %}', (38, 56)),
('{% load bad_tag %}{% for i in range %}{% for j in range %}{% badsimpletag %}{% endfor %}{% endfor %}', (58, 76)),
('{% load bad_tag %}{% for i in range %}{% badsimpletag %}{% for j in range %}Hello{% endfor %}{% endfor %}', (38, 56)),
('{% load bad_tag %}{% for i in range %}{% for j in five %}{% badsimpletag %}{% endfor %}{% endfor %}', (38, 57)),
('{% load bad_tag %}{% for j in five %}{% badsimpletag %}{% endfor %}', (18, 37)),
]
context = Context({
'range': range(5),
'five': 5,
})
for source, expected_error_source_index in tests:
template = get_template_from_string(source)
try:
template.render(context)
except (RuntimeError, TypeError), e:
error_source_index = e.django_template_source[1]
self.assertEqual(error_source_index,
expected_error_source_index)