assertEquals(4, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.5.0_15");
        assertEquals(5, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.6.0_34");
        assertEquals(6, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.7.0_25");
        assertEquals(7, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.8.0_171");

        // Little-endian 0x1234 -> 0x34 0x12
        byte[] data = new byte[] { 0x34, 0x12, 0x00, 0x00 };
        PacDataInputStream pdis = createInputStream(data);
        assertEquals((short) 0x1234, pdis.readShort());
    }

    @Test
    public void testReadInt() throws IOException {
        // Little-endian 0x12345678 -> 0x78 0x56 0x34 0x12
        byte[] data = new byte[] { 0x78, 0x56, 0x34, 0x12 };

        Encdec.enc_uint16le(value, buffer, 0);
        short decoded = (short) Encdec.dec_uint16le(buffer, 0);

        // Then
        assertEquals(value, decoded);
        assertEquals(0x34, buffer[0] & 0xFF);
        assertEquals(0x12, buffer[1] & 0xFF);
    }

    @Test
    @DisplayName("Should encode and decode 32-bit integers")
    void testInt32Operations() {
        // Given

 */
class SMBUtilTest {

    @Test
    void testWriteInt2() {
        byte[] dst = new byte[10];

        // Test with simple value
        SMBUtil.writeInt2(0x1234L, dst, 0);
        assertEquals((byte) 0x34, dst[0]);
        assertEquals((byte) 0x12, dst[1]);

        // Test with max value for 2 bytes
        SMBUtil.writeInt2(0xFFFFL, dst, 2);
        assertEquals((byte) 0xFF, dst[2]);

    void testWriteInt2() {
        byte[] dst = new byte[4];
        SessionServicePacket.writeInt2(0x1234, dst, 0);

        assertEquals((byte) 0x12, dst[0]);
        assertEquals((byte) 0x34, dst[1]);
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 255, 256, 32767, 65535 })
    @DisplayName("writeInt2 should handle various values")
    void testWriteInt2Various(int value) {

        int written = cmd.writeParametersWireFormat(buf, 0);
        assertEquals(2, written, "writeParametersWireFormat should write exactly 2 bytes");

        // Verify little-endian encoding (0x1234 -> 0x34 0x12)
        assertEquals((byte) 0x34, buf[0], "First byte should be low byte of level");
        assertEquals((byte) 0x12, buf[1], "Second byte should be high byte of level");
    }

    @Test
    @DisplayName("all read* methods return zero")

        // Pre-populate buffer with the encoding of a short value
        NdrBuffer prepare = new NdrBuffer(new byte[10], 0);
        prepare.enc_ndr_short(0x34); // Encode value 0x34
        prepare.reset(); // Reset to beginning for decoding

        NdrBuffer spy = spy(prepare);
        ns.decode(spy);
        verify(spy).dec_ndr_short();
    }

        assertEquals((byte) 0x12, dst[0]);
        assertEquals((byte) 0x34, dst[1]);
    }

    @Test
    void testWriteInt4() {
        byte[] dst = new byte[4];
        NameServicePacket.writeInt4(0x12345678, dst, 0);
        assertEquals((byte) 0x12, dst[0]);
        assertEquals((byte) 0x34, dst[1]);
        assertEquals((byte) 0x56, dst[2]);
        assertEquals((byte) 0x78, dst[3]);
    }

        // Parameters: status (2 bytes), converter (2 bytes), numEntries (2 bytes), totalAvailableEntries (2 bytes)
        byte[] buffer = { 0x00, 0x00, // status = 0 (Success)
                0x12, 0x34, // converter = 0x3412
                0x02, 0x00, // numEntries = 2
                0x05, 0x00 // totalAvailableEntries = 5
        };

        int bytesRead = response.readParametersWireFormat(buffer, 0, buffer.length);

    static java.util.stream.Stream<Arguments> int32Provider() {
        return java.util.stream.Stream.of(Arguments.of(0x00000000, new byte[] { 0x00, 0x00, 0x00, 0x00 }),
                Arguments.of(0x12345678, new byte[] { 0x78, 0x56, 0x34, 0x12 }),
                Arguments.of(0xFFFFFFFF, new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF }),
                Arguments.of(0x7FFFFFFF, new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0x7F }));
    }