assertEquals("0A0B", Hexdump.toHexString(data3, 0, 4)); // 4 chars = 2 bytes
        assertEquals("0A0B0", Hexdump.toHexString(data3, 0, 5)); // 5 chars = 2.5 bytes (rounds up to 3)
        assertEquals("0A0B0C", Hexdump.toHexString(data3, 0, 6)); // 6 chars = 3 bytes

        // Test with offset - NOTE: srcIndex is ignored due to bug, it always starts from index 0
        byte[] data4 = { 0x00, 0x11, 0x22, 0x33, 0x44 };