} finally {
      executor.shutdownNow();
    }

    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
  }

  /** Tests that the {@link Future#get(long, TimeUnit)} method times out correctly. */
  public void testTimeoutOnGetWorksCorrectly() throws InterruptedException, ExecutionException {

    // The task thread waits for the latch, so we expect a timeout here.
    try {
      future.get(20, MILLISECONDS);

        // Basic setup, specific filter attributes will be set in each test
    }

    /**
     * Tests the constructor of DosFileFilter.
     * This test ensures that the constructor runs without errors and correctly initializes the object.
     * The wildcard parameter is stored but its filtering logic is handled server-side,
     * so we only verify its acceptance here.
     */
    @Test
    void testConstructor() {

            int tid = response.getTid();

            // Then
            assertEquals(54321, tid, "getTid should return tree ID");
        }

        @Test
        @DisplayName("Should validate tree ID correctly")
        void testIsValidTid() {
            // Test valid TID
            response.setTreeId(100);
            assertTrue(response.isValidTid(), "Positive tree ID should be valid");

import jcifs.BaseTest;

/**
 * Test class for Crypto utility functionality
 */
@DisplayName("Crypto Utility Tests")
class CryptoTest extends BaseTest {

    @Test
    @DisplayName("Should calculate MD4 hash correctly")
    void testMD4Hash() {
        // Given
        String input = "Hello World";
        byte[] data = input.getBytes();

        // When
        MessageDigest md4 = Crypto.getMD4();

        }

        request = new Smb2FlushRequest(mockConfig, testFileId);
    }

    @Test
    @DisplayName("Constructor should initialize with correct command and file ID")
    void testConstructor() throws Exception {
        // Verify command is set correctly (SMB2_FLUSH = 0x0007)
        Field commandField = ServerMessageBlock2.class.getDeclaredField("command");
        commandField.setAccessible(true);

        verify(mockBuffer).dec_ndr_long();
    }

    /**
     * Test case for the encode method when it throws an NdrException.
     * Verifies that the exception is correctly propagated.
     */
    @Test
    void testEncodeThrowsNdrException() {
        // Given
        ndrObject.setThrowOnEncode(true);

        // When & Then
        assertThrows(NdrException.class, () -> {

        int mode = response.getSecurityMode();

        // Then
        assertEquals(Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED, mode);
    }

    @Test
    @DisplayName("Should check capability correctly")
    void testHaveCapability() throws Exception {
        // Given
        setPrivateField(response, "commonCapabilities", 0x2F); // 0010 1111

        // Then

        assertEquals(2, lsarSidArrayX.sids.length, "sids array length should match");
        assertEquals(sidT1, lsarSidArrayX.sids[0].sid, "First SID should be unwrapped correctly");
        assertEquals(sidT2, lsarSidArrayX.sids[1].sid, "Second SID should be unwrapped correctly");
    }

    @Test
    void testConstructorWithJcifsSIDArrayDirectAssignment() {
        // Create mock SID objects
        SID mockSid1 = mock(SID.class);

        assertEquals("Multiple deserializations should produce identical results", deserialized1, deserialized2);
    }

    /**
     * Test that ThreadLocal Kryo instances work correctly
     * This verifies that the ThreadLocal implementation doesn't cause issues
     */
    @Test
    public void test_threadLocalKryo() {
        // Perform multiple serializations to ensure ThreadLocal works

        assertEquals(SmbOperationException.ErrorCategory.NETWORK, exception.getErrorCategory());
        assertTrue(exception.isRetryable());
    }

    @Test
    @DisplayName("Should handle retry policy correctly")
    void testRetryPolicy() {
        // Given
        SmbOperationException.RetryPolicy policy = new SmbOperationException.RetryPolicy(3, 1000, 10000, 2.0, true);