Python fpad Examples

Example #1

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

Example #2

File: test_encoder_properties.py Project: pipermerriam/ethereum-abi-utils

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

Example #3

File: encoding.py Project: rmalkevy/Simple_Flask_server

    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

Example #4

File: encoding.py Project: tristan/eth-abi

    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

Example #5

File: encoding.py Project: pipermerriam/ethereum-abi-utils

    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