public void setUp() throws Exception {
        super.setUp();
        testEnv = new Hashtable<>();
        testEnv.put("test.key", "test.value");
        ldapUser = new LdapUser(testEnv, "testuser");

        ComponentUtil.register(new SystemHelper(), "systemHelper");

        // Register a mock LdapManager to avoid NPE
        ComponentUtil.register(new LdapManager() {
            // Override methods that are called in tests

        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getCrawlerWebProtocols() {
                return "http,https";
            }

            @Override
            public String getCrawlerFileProtocols() {
                return "file,smb";
            }
        });

        final ProtocolHelper protocolHelper = new ProtocolHelper();
        protocolHelper.init();

    SomeCheckedException cause = new SomeCheckedException();
    SomeChainingException exception = new SomeChainingException(new SomeChainingException(cause));
    assertSame(cause, getRootCause(exception));
  }

  public void testGetRootCause_loop() {
    Exception cause = new Exception();
    Exception exception = new Exception(cause);
    cause.initCause(exception);
    IllegalArgumentException expected =

        // Test with multiple terms in default field
        PhraseQuery.Builder builder = new PhraseQuery.Builder();
        builder.add(new Term(Constants.DEFAULT_FIELD, "hello"));
        builder.add(new Term(Constants.DEFAULT_FIELD, "world"));
        PhraseQuery phraseQuery = builder.build();

        QueryContext context = new QueryContext("test", false);

        String componentName1 = "dataSource";
        ContainerNotAvailableException exception1 = new ContainerNotAvailableException(componentName1, new RuntimeException());
        assertEquals(componentName1, exception1.getComponentName());

        ContainerNotAvailableException exception2 = new ContainerNotAvailableException(new RuntimeException());
        assertEquals("container", exception2.getComponentName());

// When upload object size is less than what was expected.
var errDataTooSmall = errors.New("Object size smaller than expected")

// errServerNotInitialized - server not initialized.
var errServerNotInitialized = errors.New("Server not initialized, please try again")

// errRPCAPIVersionUnsupported - unsupported rpc API version.

        void testConcurrentReceived() throws InterruptedException {
            int threadCount = 10;
            CountDownLatch startLatch = new CountDownLatch(1);
            CountDownLatch endLatch = new CountDownLatch(threadCount);

            for (int i = 0; i < threadCount; i++) {
                new Thread(() -> {
                    try {
                        startLatch.await();
                        response.received();

        Name name1 = new Name(mockConfig, "TEST1", 0x20, "scope");
        Name name2 = new Name(mockConfig, "TEST2", 0x20, "scope");

        assertFalse(name1.equals(name2));
    }

    @Test
    void equals_withDifferentHexCode_shouldReturnFalse() {
        Name name1 = new Name(mockConfig, "TEST", 0x20, "scope");
        Name name2 = new Name(mockConfig, "TEST", 0x1C, "scope");

      ImmutableList.of(
          new ExpectedHashCode(
              new byte[] {
                (byte) 0xef, (byte) 0xcd, (byte) 0xab, (byte) 0x89,
                (byte) 0x67, (byte) 0x45, (byte) 0x23, (byte) 0x01
              },
              0x89abcdef,
              0x0123456789abcdefL,
              "efcdab8967452301"),
          new ExpectedHashCode(
              new byte[] {

    @DisplayName("Test complete wire format writing")
    void testCompleteWireFormatWriting() {
        trans2QueryFSInfo = new Trans2QueryFSInformation(config, FileSystemInformation.FS_SIZE_INFO);

        byte[] setupBuffer = new byte[256];
        byte[] paramBuffer = new byte[256];
        byte[] dataBuffer = new byte[256];

        int setupWritten = trans2QueryFSInfo.writeSetupWireFormat(setupBuffer, 0);