int alignedSize = (expectedSize + 7) & ~7; // size8 alignment
        assertEquals(alignedSize, size);
    }

    @Test
    @DisplayName("Should calculate correct message size without token")
    void testSizeWithoutToken() {
        // Given
        Smb2SessionSetupRequest req =
                new Smb2SessionSetupRequest(mockContext, TEST_SECURITY_MODE, TEST_CAPABILITIES, TEST_PREVIOUS_SESSION_ID, null);

        // When