""" Tests for django.utils. """ from unittest import TestCase from django.utils import html, checksums import timesince import datastructures import dateformat import itercompat from decorators import DecoratorFromMiddlewareTests # We need this because "datastructures" uses sorted() and the tests are run in # the scope of this module. try: sorted except NameError: from django.utils.itercompat import sorted # For Python 2.3 # Extra tests __test__ = { 'timesince': timesince, 'datastructures': datastructures, 'dateformat': dateformat, '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 = ( ('&','&'), ('<', '<'), ('>', '>'), ('"', '"'), ("'", '''), ) # 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, '<&', '<&') def test_linebreaks(self): f = html.linebreaks items = ( ("para1\n\npara2\r\rpara3", "

para1

\n\n

para2

\n\n

para3

"), ("para1\nsub1\rsub2\n\npara2", "

para1
sub1
sub2

\n\n

para2

"), ("para1\r\n\r\npara2\rsub1\r\rpara4", "

para1

\n\n

para2
sub1

\n\n

para4

"), ("para1\tmore\n\npara2", "

para1\tmore

\n\n

para2

"), ) for value, output in items: self.check_output(f, value, output) def test_strip_tags(self): f = html.strip_tags items = ( ('a', 'a'), ('a', 'a'), ('e', 'e'), ('b', '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 = (' ', ' ', ' ', ' x') for value in items: self.check_output(f, value) # Strings that have spaces to strip. items = ( (' ', ''), ('

hello

\n

world

', '

hello

world

'), ('\n

\t

\n

\n', '\n

\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 = ("", " ", "&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", "b", "&a;", "& &x; ", "asdf") patterns = ( ("%s", "%s"), ("&%s", "&%s"), ("&%s&", "&%s&"), ) 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 = ( ("&#;", "&#;"), ("ͫ ;", "&#875 ;"), ("abc;", "&#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()