def test_decode_single_block(self):
codec = etao.PKCS7PaddingCodec(16)
self.assertEqual(codec.decode(b'YELLOW SUBMARIN\x01'),
b'YELLOW SUBMARIN')
def test_decode(self):
codec = etao.PKCS7PaddingCodec(16)
self.assertEqual(codec.decode(b'YELLOW SUBMARINE' + b'\x10' * 16),
b'YELLOW SUBMARINE')
def test_encode_nothing(self):
codec = etao.PKCS7PaddingCodec(16)
self.assertEqual(codec.encode(b''), b'\x10' * 16)
def test_decode_incosistent_padding(self):
codec = etao.PKCS7PaddingCodec(16)
with self.assertRaises(ValueError):
codec.decode(b'YELLOW SUBMARINE\x09' + b'\x10' * 15)
def test_decode_invalid_padding(self):
codec = etao.PKCS7PaddingCodec(16)
with self.assertRaises(ValueError):
codec.decode(b'YELLOW SUBMARINE' + b'\xFF' * 16)
def test_decode_nothing(self):
codec = etao.PKCS7PaddingCodec(16)
with self.assertRaises(IndexError):
codec.decode(b'')
