private Smb2LogoffRequest newRequest() {
        return new Smb2LogoffRequest(configuration);
    }

    @Test
    @DisplayName("size() returns 8-byte aligned value (header + 4)")
    void size_returnsAlignedValue() {
        // Arrange
        Smb2LogoffRequest req = newRequest();
        int base = Smb2Constants.SMB2_HEADER_LENGTH + 4; // structure size
        int expected = ((base + 7) / 8) * 8; // expected 8-byte alignment