def test_read_bytes_from_non_framed_finalize(self):
ct_stream = io.BytesIO(VALUES['data_128'])
test_decryptor = StreamDecryptor(
key_provider=self.mock_key_provider,
source=ct_stream
)
test_decryptor.body_start = 0
test_decryptor.body_length = test_decryptor.body_end = len(VALUES['data_128'])
test_decryptor.decryptor = self.mock_decryptor_instance
test_decryptor.verifier = MagicMock()
test_decryptor._header = self.mock_header
self.mock_decryptor_instance.update.return_value = b'1234'
self.mock_decryptor_instance.finalize.return_value = b'5678'
test = test_decryptor._read_bytes_from_non_framed_body(len(VALUES['data_128']) + 1)
test_decryptor.verifier.update.assert_called_once_with(VALUES['data_128'])
self.mock_decryptor_instance.update.assert_called_once_with(VALUES['data_128'])
self.mock_update_verifier_with_tag.assert_called_once_with(
stream=test_decryptor.source_stream,
header=test_decryptor._header,
verifier=test_decryptor.verifier
)
self.mock_deserialize_footer.assert_called_once_with(
stream=test_decryptor.source_stream,
verifier=test_decryptor.verifier
)
assert test_decryptor.source_stream.closed
assert test == b'12345678'
def test_read_bytes_from_non_framed_no_verifier(self):
ct_stream = io.BytesIO(VALUES['data_128'])
test_decryptor = StreamDecryptor(key_provider=self.mock_key_provider,
source=ct_stream)
test_decryptor.body_start = 0
test_decryptor.body_length = test_decryptor.body_end = len(
VALUES['data_128'])
test_decryptor.decryptor = self.mock_decryptor_instance
test_decryptor._header = self.mock_header
test_decryptor.verifier = None
self.mock_decryptor_instance.update.return_value = b'1234'
test_decryptor._read_bytes_from_non_framed_body(5)
def test_read_bytes_from_non_framed_message_body_too_small(self):
ct_stream = io.BytesIO(VALUES['data_128'])
test_decryptor = StreamDecryptor(key_provider=self.mock_key_provider,
source=ct_stream)
test_decryptor.body_start = 0
test_decryptor.body_length = test_decryptor.body_end = len(
VALUES['data_128'] * 2)
test_decryptor._header = self.mock_header
with six.assertRaisesRegex(
self, SerializationError,
'Total message body contents less than specified in body description'
):
test_decryptor._read_bytes_from_non_framed_body(1)
