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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) as e:
error_source_index = e.django_template_source[1]
self.assertEqual(error_source_index,
expected_error_source_index)
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