// Given
        int messageSize = 1024;

        // When
        transformHeader.setOriginalMessageSize(messageSize);

        // Then
        assertEquals(messageSize, transformHeader.getOriginalMessageSize());
    }

    @Test
    @DisplayName("Should set and get flags")
    void testFlags() {
        // Given
        int flags = 0x0001; // Encrypted flag

        // When

        }
    }

    /**
     * Gets the size of the original unencrypted message
     *
     * @return the original message size
     */
    public int getOriginalMessageSize() {
        return this.originalMessageSize;
    }

    /**
     * Sets the size of the original unencrypted message
     *
     * @param originalMessageSize