def test_encode_unsigned_integer(integer_value, value_bit_size, data_byte_size): if value_bit_size > data_byte_size * 8: with pytest.raises(ValueError) as exception_info: UnsignedIntegerEncoder( value_bit_size=value_bit_size, data_byte_size=data_byte_size, ) return encoder = UnsignedIntegerEncoder( value_bit_size=value_bit_size, data_byte_size=data_byte_size, ) lower_bound, upper_bound = compute_unsigned_integer_bounds(value_bit_size) if not is_integer(integer_value): with pytest.raises(EncodingTypeError) as exception_info: encoder(integer_value) assert 'UnsignedInteger' in str(exception_info.value) return elif integer_value < lower_bound or integer_value > upper_bound: with pytest.raises(ValueOutOfBounds): encoder(integer_value) return if integer_value >= 0: expected_value = zpad(int_to_big_endian(integer_value), data_byte_size) else: expected_value = fpad(int_to_big_endian(integer_value), data_byte_size) encoded_value = encoder(integer_value) assert encoded_value == expected_value
def encode(cls, value): cls.validate_value(value) base_encoded_value = cls.encode_fn(value) if value >= 0: padded_encoded_value = zpad(base_encoded_value, cls.data_byte_size) else: padded_encoded_value = fpad(base_encoded_value, cls.data_byte_size) return padded_encoded_value
def encode(self, value): self.validate_value(value) base_encoded_value = self.encode_fn(value) if value >= 0: padded_encoded_value = zpad(base_encoded_value, self.data_byte_size) else: padded_encoded_value = fpad(base_encoded_value, self.data_byte_size) return padded_encoded_value