django1/tests/utils_tests/test_encoding.py

133 lines
4.9 KiB
Python

import datetime
import unittest
from urllib.parse import quote_plus
from django.utils.encoding import (
escape_uri_path, filepath_to_uri, force_bytes, force_text, iri_to_uri,
smart_text, uri_to_iri,
)
from django.utils.functional import SimpleLazyObject
class TestEncodingUtils(unittest.TestCase):
def test_force_text_exception(self):
"""
Broken __str__ actually raises an error.
"""
class MyString:
def __str__(self):
return b'\xc3\xb6\xc3\xa4\xc3\xbc'
# str(s) raises a TypeError if the result is not a text type.
with self.assertRaises(TypeError):
force_text(MyString())
def test_force_text_lazy(self):
s = SimpleLazyObject(lambda: 'x')
self.assertTrue(type(force_text(s)), str)
def test_force_bytes_exception(self):
"""
force_bytes knows how to convert to bytes an exception
containing non-ASCII characters in its args.
"""
error_msg = "This is an exception, voilà"
exc = ValueError(error_msg)
result = force_bytes(exc)
self.assertEqual(result, error_msg.encode('utf-8'))
def test_force_bytes_strings_only(self):
today = datetime.date.today()
self.assertEqual(force_bytes(today, strings_only=True), today)
def test_smart_text(self):
class Test:
def __str__(self):
return 'ŠĐĆŽćžšđ'
class TestU:
def __str__(self):
return 'ŠĐĆŽćžšđ'
def __bytes__(self):
return b'Foo'
self.assertEqual(smart_text(Test()), '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111')
self.assertEqual(smart_text(TestU()), '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111')
self.assertEqual(smart_text(1), '1')
self.assertEqual(smart_text('foo'), 'foo')
class TestRFC3987IEncodingUtils(unittest.TestCase):
def test_filepath_to_uri(self):
self.assertEqual(filepath_to_uri('upload\\чубака.mp4'), 'upload/%D1%87%D1%83%D0%B1%D0%B0%D0%BA%D0%B0.mp4')
self.assertEqual(
filepath_to_uri('upload\\чубака.mp4'.encode('utf-8')),
'upload/%D1%87%D1%83%D0%B1%D0%B0%D0%BA%D0%B0.mp4'
)
def test_iri_to_uri(self):
cases = [
# Valid UTF-8 sequences are encoded.
('red%09rosé#red', 'red%09ros%C3%A9#red'),
('/blog/for/Jürgen Münster/', '/blog/for/J%C3%BCrgen%20M%C3%BCnster/'),
('locations/%s' % quote_plus('Paris & Orléans'), 'locations/Paris+%26+Orl%C3%A9ans'),
# Reserved chars remain unescaped.
('%&', '%&'),
('red&♥ros%#red', 'red&%E2%99%A5ros%#red'),
]
for iri, uri in cases:
self.assertEqual(iri_to_uri(iri), uri)
# Test idempotency.
self.assertEqual(iri_to_uri(iri_to_uri(iri)), uri)
def test_uri_to_iri(self):
cases = [
# Valid UTF-8 sequences are decoded.
('/%E2%99%A5%E2%99%A5/', '/♥♥/'),
('/%E2%99%A5%E2%99%A5/?utf8=%E2%9C%93', '/♥♥/?utf8=✓'),
# Broken UTF-8 sequences remain escaped.
('/%AAd%AAj%AAa%AAn%AAg%AAo%AA/', '/%AAd%AAj%AAa%AAn%AAg%AAo%AA/'),
('/%E2%99%A5%E2%E2%99%A5/', '/♥%E2♥/'),
('/%E2%99%A5%E2%99%E2%99%A5/', '/♥%E2%99♥/'),
('/%E2%E2%99%A5%E2%99%A5%99/', '/%E2♥♥%99/'),
('/%E2%99%A5%E2%99%A5/?utf8=%9C%93%E2%9C%93%9C%93', '/♥♥/?utf8=%9C%93✓%9C%93'),
]
for uri, iri in cases:
self.assertEqual(uri_to_iri(uri), iri)
# Test idempotency.
self.assertEqual(uri_to_iri(uri_to_iri(uri)), iri)
def test_complementarity(self):
cases = [
('/blog/for/J%C3%BCrgen%20M%C3%BCnster/', '/blog/for/J\xfcrgen M\xfcnster/'),
('%&', '%&'),
('red&%E2%99%A5ros%#red', 'red&♥ros%#red'),
('/%E2%99%A5%E2%99%A5/', '/♥♥/'),
('/%E2%99%A5%E2%99%A5/?utf8=%E2%9C%93', '/♥♥/?utf8=✓'),
('/%AAd%AAj%AAa%AAn%AAg%AAo%AA/', '/%AAd%AAj%AAa%AAn%AAg%AAo%AA/'),
('/%E2%99%A5%E2%E2%99%A5/', '/♥%E2♥/'),
('/%E2%99%A5%E2%99%E2%99%A5/', '/♥%E2%99♥/'),
('/%E2%E2%99%A5%E2%99%A5%99/', '/%E2♥♥%99/'),
('/%E2%99%A5%E2%99%A5/?utf8=%9C%93%E2%9C%93%9C%93', '/♥♥/?utf8=%9C%93✓%9C%93'),
]
for uri, iri in cases:
self.assertEqual(iri_to_uri(uri_to_iri(uri)), uri)
self.assertEqual(uri_to_iri(iri_to_uri(iri)), iri)
def test_escape_uri_path(self):
self.assertEqual(
escape_uri_path('/;some/=awful/?path/:with/@lots/&of/+awful/chars'),
'/%3Bsome/%3Dawful/%3Fpath/:with/@lots/&of/+awful/chars'
)
self.assertEqual(escape_uri_path('/foo#bar'), '/foo%23bar')
self.assertEqual(escape_uri_path('/foo?bar'), '/foo%3Fbar')