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# Copyright (c) 2014, Menno Smits
# Released subject to the New BSD License
# Please see http://en.wikipedia.org/wiki/BSD_licenses
import unittest
from imapclient.imap_utf7 import decode, encode
class IMAP4UTF7TestCase(unittest.TestCase):
tests = [
["Foo", b"Foo"],
["Foo Bar", b"Foo Bar"],
["Stuff & Things", b"Stuff &- Things"],
["Hello world", b"Hello world"],
["Hello & world", b"Hello &- world"],
["Hello\xffworld", b"Hello&AP8-world"],
["\xff\xfe\xfd\xfc", b"&AP8A,gD9APw-"],
[
"~peter/mail/\u65e5\u672c\u8a9e/\u53f0\u5317",
b"~peter/mail/&ZeVnLIqe-/&U,BTFw-",
], # example from RFC 2060
["\x00foo", b"&AAA-foo"],
["foo\r\n\nbar\n", b"foo&AA0ACgAK-bar&AAo-"], # see imapclient/#187 issue
]
def test_encode(self):
for input, output in self.tests:
encoded = encode(input)
self.assertIsInstance(encoded, bytes)
self.assertEqual(encoded, output)
def test_decode(self):
for input, output in self.tests:
decoded = decode(output)
self.assertIsInstance(decoded, str)
self.assertEqual(input, decoded)
def test_printable_singletons(self):
"""
The IMAP4 modified UTF-7 implementation encodes all printable
characters which are in ASCII using the corresponding ASCII byte.
"""
# All printables represent themselves
for o in list(range(0x20, 0x26)) + list(range(0x27, 0x7F)):
self.assertEqual(bytes((o,)), encode(chr(o)))
self.assertEqual(chr(o), decode(bytes((o,))))
self.assertEqual(encode("&"), b"&-")
self.assertEqual(encode("&"), b"&-")
self.assertEqual(decode(b"&-"), "&")
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