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"""Tests for josepy.b64."""
import unittest
# https://en.wikipedia.org/wiki/Base64#Examples
B64_PADDING_EXAMPLES = {
b'any carnal pleasure.': (b'YW55IGNhcm5hbCBwbGVhc3VyZS4', b'='),
b'any carnal pleasure': (b'YW55IGNhcm5hbCBwbGVhc3VyZQ', b'=='),
b'any carnal pleasur': (b'YW55IGNhcm5hbCBwbGVhc3Vy', b''),
b'any carnal pleasu': (b'YW55IGNhcm5hbCBwbGVhc3U', b'='),
b'any carnal pleas': (b'YW55IGNhcm5hbCBwbGVhcw', b'=='),
}
B64_URL_UNSAFE_EXAMPLES = {
bytes((251, 239)): b'--8',
bytes((255,)) * 2: b'__8',
}
class B64EncodeTest(unittest.TestCase):
"""Tests for josepy.b64.b64encode."""
@classmethod
def _call(cls, data):
from josepy.b64 import b64encode
return b64encode(data)
def test_empty(self):
self.assertEqual(self._call(b''), b'')
def test_unsafe_url(self):
for text, b64 in B64_URL_UNSAFE_EXAMPLES.items():
self.assertEqual(self._call(text), b64)
def test_different_paddings(self):
for text, (b64, _) in B64_PADDING_EXAMPLES.items():
self.assertEqual(self._call(text), b64)
def test_unicode_fails_with_type_error(self):
self.assertRaises(TypeError, self._call, u'some unicode')
class B64DecodeTest(unittest.TestCase):
"""Tests for josepy.b64.b64decode."""
@classmethod
def _call(cls, data):
from josepy.b64 import b64decode
return b64decode(data)
def test_unsafe_url(self):
for text, b64 in B64_URL_UNSAFE_EXAMPLES.items():
self.assertEqual(self._call(b64), text)
def test_input_without_padding(self):
for text, (b64, _) in B64_PADDING_EXAMPLES.items():
self.assertEqual(self._call(b64), text)
def test_input_with_padding(self):
for text, (b64, pad) in B64_PADDING_EXAMPLES.items():
self.assertEqual(self._call(b64 + pad), text)
def test_unicode_with_ascii(self):
self.assertEqual(self._call(u'YQ'), b'a')
def test_non_ascii_unicode_fails(self):
self.assertRaises(ValueError, self._call, u'\u0105')
def test_type_error_no_unicode_or_bytes(self):
self.assertRaises(TypeError, self._call, object())
if __name__ == '__main__':
unittest.main() # pragma: no cover
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