assertArrayEquals(checksum, pacSignature.getChecksum());
    }

    /**
     * Test constructor with malformed data (too short).
     */
    @Test
    void testConstructorMalformedData() {
        // Prepare data (only 2 bytes, less than an int)
        byte[] data = new byte[] { 0x01, 0x02 };

        // Verify that PACDecodingException is thrown

Shinsuke Sugaya <******@****.***> 1755149504 +0900