MonotonicClock clock1 = MonotonicClock.get();
        MonotonicClock clock2 = MonotonicClock.get();

        assertSame(clock1, clock2, "Multiple calls to get() should return the same instance");
    }

    @Test
    @DisplayName("MonotonicClock should always use UTC timezone")
    void testClockTimezone() {
        MonotonicClock clock = MonotonicClock.get();

        }

        return leaseKey;
    }

    /**
     * Get cache entry for a directory
     *
     * @param directoryPath directory path
     * @return cache entry or null
     */
    public DirectoryCacheEntry getCacheEntry(String directoryPath) {
        DirectoryCacheEntry entry = directoryCache.get(directoryPath);

        // Check if cache entry is valid

        assertEquals(1, result.getDocumentList().size());
        Map<String, Object> retrievedDoc = result.getDocumentList().get(0);
        assertEquals("!@#$%^&*()_+-=[]{}|;':\",./<>?", retrievedDoc.get("special"));
        assertEquals("こんにちは世界", retrievedDoc.get("unicode"));
        assertEquals("😀🎉", retrievedDoc.get("emoji"));
    }

    public void test_nullDocumentInList() {
        // Test adding null document

    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testFutureGetThrowsCancellationIfOutputCancelled() throws Exception {
    inputFuture.set(SLOW_OUTPUT_VALID_INPUT_DATA);
    outputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testAsyncToString() throws Exception {

    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testFutureGetThrowsCancellationIfOutputCancelled() throws Exception {
    inputFuture.set(SLOW_OUTPUT_VALID_INPUT_DATA);
    outputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testAsyncToString() throws Exception {

    }

    /**
     * Get the unique file identifier
     * @return the fileId
     */
    public final byte[] getFileId() {
        return this.fileId;
    }

    /**
     * Get the file name
     * @return the fileName
     */
    public final String getFileName() {
        return this.fileName;
    }

    /**
     * Get the create context responses

        activityHelper.login(createUser("testuser", new String[0]));
        assertEquals("action:LOGIN\tuser:testuser\tpermissions:-", localLogMsg.get());

        activityHelper.login(createUser("testuser", new String[] { "111", "222" }));
        assertEquals("action:LOGIN\tuser:testuser\tpermissions:111|222", localLogMsg.get());
    }

    public void test_loginFailure() {

        @Test
        @DisplayName("Should get and set command")
        void testCommandProperty() {
            assertEquals(0, testMessage.getCommand());
            testMessage.setCommand(ServerMessageBlock2.SMB2_CREATE);
            assertEquals(ServerMessageBlock2.SMB2_CREATE, testMessage.getCommand());
        }

        @Test
        @DisplayName("Should get and set tree ID")
        void testTreeIdProperty() {

    }

    // Test put and get operations
    public void test_putAndGet() {
        dataStoreParams.put("key1", "value1");
        assertEquals("value1", dataStoreParams.get("key1"));

        dataStoreParams.put("key2", 123);
        assertEquals(123, dataStoreParams.get("key2"));

        dataStoreParams.put("key3", null);
        assertNull(dataStoreParams.get("key3"));
    }

        newOutput = newOutputs;
    }

    /**
     * Gets the original input word.
     *
     * @return The original input word.
     */
    public String getInput() {
        return input;
    }

    /**
     * Gets the original output stem.
     *
     * @return The original output stem.
     */
    public String getOutput() {
        return output;
    }

    /**