django1/tests/template_tests/test_nodelist.py

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from unittest import TestCase
from django.template import Context, Engine
from django.template.base import TextNode, VariableNode
from django.utils import six
class NodelistTest(TestCase):
@classmethod
def setUpClass(cls):
cls.engine = Engine()
super(NodelistTest, cls).setUpClass()
def test_for(self):
template = self.engine.from_string('{% for i in 1 %}{{ a }}{% endfor %}')
vars = template.nodelist.get_nodes_by_type(VariableNode)
self.assertEqual(len(vars), 1)
def test_if(self):
template = self.engine.from_string('{% if x %}{{ a }}{% endif %}')
vars = template.nodelist.get_nodes_by_type(VariableNode)
self.assertEqual(len(vars), 1)
def test_ifequal(self):
template = self.engine.from_string('{% ifequal x y %}{{ a }}{% endifequal %}')
vars = template.nodelist.get_nodes_by_type(VariableNode)
self.assertEqual(len(vars), 1)
def test_ifchanged(self):
template = self.engine.from_string('{% ifchanged x %}{{ a }}{% endifchanged %}')
vars = template.nodelist.get_nodes_by_type(VariableNode)
self.assertEqual(len(vars), 1)
class TextNodeTest(TestCase):
def test_textnode_repr(self):
engine = Engine()
for temptext, reprtext in [
("Hello, world!", "<TextNode: u'Hello, world!'>"),
("One\ntwo.", "<TextNode: u'One\\ntwo.'>"),
]:
template = engine.from_string(temptext)
texts = template.nodelist.get_nodes_by_type(TextNode)
if six.PY3:
reprtext = reprtext.replace("u'", "'")
self.assertEqual(repr(texts[0]), reprtext)
class ErrorIndexTest(TestCase):
"""
Checks whether index of error is calculated correctly in
template debugger in for loops. Refs ticket #5831
"""
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,
})
engine = Engine(debug=True, libraries={'bad_tag': 'template_tests.templatetags.bad_tag'})
for source, expected_error_source_index in tests:
template = engine.from_string(source)
try:
template.render(context)
except (RuntimeError, TypeError) as e:
debug = e.template_debug
self.assertEqual((debug['start'], debug['end']), expected_error_source_index)