def test_file(self):
test_filename = "BitStreamTest.bin"
writer = BitStreamWriter()
writer.write_bits(13, 7)
writer.write_string(test_filename)
writer.write_varint(-123456)
writer.to_file(test_filename)
reader = BitStreamReader.from_file(test_filename)
self.assertEqual(13, reader.read_bits(7))
self.assertEqual(test_filename, reader.read_string())
self.assertEqual(-123456, reader.read_varint())
def deserialize_from_file(obj_class: typing.Type[typing.Any], filename: str,
*args) -> typing.Any:
"""
Deserializes file to the generated object.
This is a convenient method for users to easily read given generated object from file.
:param obj_class: Class instance of the generated object to deserialize.
:param filename: File which represents generated object in binary format.
:param args: Additional arguments needed for obj_class.from_reader method.
:returns: Generated object created from given file contents.
:raises PythonRuntimeException: Throws in case of any error during deserialization.
"""
reader = BitStreamReader.from_file(filename)
return obj_class.from_reader(reader, *args)
