django1/tests/regressiontests/utils/tests.py

158 lines
5.3 KiB
Python
Raw Normal View History

"""
Tests for django.utils.
"""
from unittest import TestCase
from django.utils import html, checksums
import timesince
import datastructures
import itercompat
from decorators import DecoratorFromMiddlewareTests
# Extra tests
__test__ = {
'timesince': timesince,
'datastructures': datastructures,
'itercompat': itercompat,
}
class TestUtilsHtml(TestCase):
def check_output(self, function, value, output=None):
"""
Check that function(value) equals output. If output is None,
check that function(value) equals value.
"""
if output is None:
output = value
self.assertEqual(function(value), output)
def test_escape(self):
f = html.escape
items = (
('&','&'),
('<', '&lt;'),
('>', '&gt;'),
('"', '&quot;'),
("'", '&#39;'),
)
# Substitution patterns for testing the above items.
patterns = ("%s", "asdf%sfdsa", "%s1", "1%sb")
for value, output in items:
for pattern in patterns:
self.check_output(f, pattern % value, pattern % output)
# Check repeated values.
self.check_output(f, value * 2, output * 2)
# Verify it doesn't double replace &.
self.check_output(f, '<&', '&lt;&amp;')
def test_linebreaks(self):
f = html.linebreaks
items = (
("para1\n\npara2\r\rpara3", "<p>para1</p>\n\n<p>para2</p>\n\n<p>para3</p>"),
("para1\nsub1\rsub2\n\npara2", "<p>para1<br />sub1<br />sub2</p>\n\n<p>para2</p>"),
("para1\r\n\r\npara2\rsub1\r\rpara4", "<p>para1</p>\n\n<p>para2<br />sub1</p>\n\n<p>para4</p>"),
("para1\tmore\n\npara2", "<p>para1\tmore</p>\n\n<p>para2</p>"),
)
for value, output in items:
self.check_output(f, value, output)
def test_strip_tags(self):
f = html.strip_tags
items = (
('<adf>a', 'a'),
('</adf>a', 'a'),
('<asdf><asdf>e', 'e'),
('<f', '<f'),
('</fe', '</fe'),
('<x>b<y>', 'b'),
)
for value, output in items:
self.check_output(f, value, output)
def test_strip_spaces_between_tags(self):
f = html.strip_spaces_between_tags
# Strings that should come out untouched.
items = (' <adf>', '<adf> ', ' </adf> ', ' <f> x</f>')
for value in items:
self.check_output(f, value)
# Strings that have spaces to strip.
items = (
('<d> </d>', '<d></d>'),
('<p>hello </p>\n<p> world</p>', '<p>hello </p><p> world</p>'),
('\n<p>\t</p>\n<p> </p>\n', '\n<p></p><p></p>\n'),
)
for value, output in items:
self.check_output(f, value, output)
def test_strip_entities(self):
f = html.strip_entities
# Strings that should come out untouched.
values = ("&", "&a", "&a", "a&#a")
for value in values:
self.check_output(f, value)
# Valid entities that should be stripped from the patterns.
entities = ("&#1;", "&#12;", "&a;", "&fdasdfasdfasdf;")
patterns = (
("asdf %(entity)s ", "asdf "),
("%(entity)s%(entity)s", ""),
("&%(entity)s%(entity)s", "&"),
("%(entity)s3", "3"),
)
for entity in entities:
for in_pattern, output in patterns:
self.check_output(f, in_pattern % {'entity': entity}, output)
def test_fix_ampersands(self):
f = html.fix_ampersands
# Strings without ampersands or with ampersands already encoded.
values = ("a&#1;", "b", "&a;", "&amp; &x; ", "asdf")
patterns = (
("%s", "%s"),
("&%s", "&amp;%s"),
("&%s&", "&amp;%s&amp;"),
)
for value in values:
for in_pattern, out_pattern in patterns:
self.check_output(f, in_pattern % value, out_pattern % value)
# Strings with ampersands that need encoding.
items = (
("&#;", "&amp;#;"),
("&#875 ;", "&amp;#875 ;"),
("&#4abc;", "&amp;#4abc;"),
)
for value, output in items:
self.check_output(f, value, output)
class TestUtilsChecksums(TestCase):
def check_output(self, function, value, output=None):
"""
Check that function(value) equals output. If output is None,
check that function(value) equals value.
"""
if output is None:
output = value
self.assertEqual(function(value), output)
def test_luhn(self):
f = checksums.luhn
items = (
(4111111111111111, True), ('4111111111111111', True),
(4222222222222, True), (378734493671000, True),
(5424000000000015, True), (5555555555554444, True),
(1008, True), ('0000001008', True), ('000000001008', True),
(4012888888881881, True), (1234567890123456789012345678909, True),
(4111111111211111, False), (42222222222224, False),
(100, False), ('100', False), ('0000100', False),
('abc', False), (None, False), (object(), False),
)
for value, output in items:
self.check_output(f, value, output)
if __name__ == "__main__":
import doctest
doctest.testmod()