assertEquals(0, msg.getFlags(), "Initial flags should be 0");
    }

    @ParameterizedTest(name = "setFlags({0}) ➜ getFlags() == {0}")
    @ValueSource(ints = { 0x0, 0x1, 0x2, 0xFFFFFFFF, -123456 })
    void testSetAndGetFlags(int value) {
        msg.setFlags(value);
        assertEquals(value, msg.getFlags(), "getFlags should return the value set");
    }

    @Test

        when(mockEntry.createTime()).thenReturn(100L);
        when(mockEntry.lastModified()).thenReturn(200L);
        when(mockEntry.lastAccess()).thenReturn(300L);
        when(mockEntry.length()).thenReturn(12345L);

        // Act: call methods, some multiple times
        String name = mockEntry.getName();
        int type1 = mockEntry.getType();

        // Test case: close() with non-zero retval from MsrpcSamrCloseHandle, should throw SmbException
        String server = "testServer";
        int access = 123;
        int errorRetval = 12345; // Simulate an error code

        // Setup for successful constructor
        doNothing().when(mockHandle).sendrecv(any(MsrpcSamrConnect4.class));

        // Setup for close to return an error

        Configuration cfg = mock(Configuration.class);
        SmbComLockingAndX cmd = new SmbComLockingAndX(cfg);
        // set fields via reflection
        setField(cmd, "fid", 0x1234);
        setField(cmd, "typeOfLock", (byte) 0x05);
        setField(cmd, "newOpLockLevel", (byte) 0x01);
        setField(cmd, "timeout", 3000L);
        // arrays of one lock and one unlock range

    private Configuration mockConfig;

    private SmbComSeekResponse response;

    @BeforeEach
    void setUp() {
        // Setup mock configuration to avoid NPE
        when(mockConfig.getPid()).thenReturn(12345);
        response = new SmbComSeekResponse(mockConfig);
    }

    /* ------------------------------------------------------------------ */
    /* 1. Construction and basic getters                                    */

        assertEquals("FF", Hexdump.toHexString(255, 2));

        // Test larger values
        assertEquals("00001234", Hexdump.toHexString(0x1234, 8));
        assertEquals("1234", Hexdump.toHexString(0x1234, 4));
        assertEquals("34", Hexdump.toHexString(0x1234, 2));

        // Test negative values (treated as unsigned)
        assertEquals("FFFFFFFF", Hexdump.toHexString(-1, 8));

            // Given
            int result = 0;
            when(mockBuffer.dec_ndr_short()).thenReturn(4096, 4096, 10, result, 0);
            when(mockBuffer.dec_ndr_long()).thenReturn(12345);
            when(mockBuffer.dec_ndr_small()).thenReturn(1);
            lenient().doNothing().when(mockBuffer).advance(anyInt());
            lenient().when(mockBuffer.align(anyInt())).thenReturn(0);

    @Test
    void testGetKeys_WithOtherCredentialTypes() throws LoginException {
        Set<Object> privateCredentials = new HashSet<>();
        privateCredentials.add("a string credential");
        privateCredentials.add(12345L);
        when(subject.getPrivateCredentials()).thenReturn(privateCredentials);

        try (MockedConstruction<LoginContext> mocked = Mockito.mockConstruction(LoginContext.class, (mock, context) -> {

        int decodedValue = 0;

        TestMessage() {
            /* nothing */
        }

        @Override
        public int getOpnum() {
            return 0x1234;
        }

        @Override
        public void encode_in(NdrBuffer buf) throws NdrException {
            buf.enc_ndr_small(0xAB);
        }

        @Override

@DisplayName("Encdec Utility Tests")
class EncdecTest extends BaseTest {

    @Test
    @DisplayName("Should encode and decode 16-bit integers")
    void testInt16Operations() {
        // Given
        short value = 0x1234;
        byte[] buffer = new byte[2];

        // When - encode little endian
        Encdec.enc_uint16le(value, buffer, 0);
        short decoded = (short) Encdec.dec_uint16le(buffer, 0);

        // Then