nameServiceClient.getNbtByName("NONEXISTENT-FAST-FAIL");
        }, "Should throw UnknownHostException for non-existent NetBIOS name");

        // Verify the exception message indicates name resolution failure
        assertTrue(exception.getMessage().contains("NONEXISTENT") || exception.getMessage().contains("unknown")

        assertEquals(true, docMap.get("key3"));

        assertTrue(docMap.containsKey("key1"));
        assertTrue(docMap.containsValue("value1"));
        assertFalse(docMap.containsKey("nonexistent"));
        assertFalse(docMap.containsValue("nonexistent"));
    }

    @Test
    public void test_put_and_get() {
        Map<String, Object> parentMap = new HashMap<>();
        DocMap docMap = new DocMap(parentMap);

    public void test_sendCommand_jobNotFound() {
        try {
            processHelper.sendCommand("nonexistent", "test command");
            fail("Expected JobNotFoundException");
        } catch (JobNotFoundException e) {
            assertTrue(e.getMessage().contains("Job for nonexistent is not found"));
        }
    }

    @Test
    public void test_startProcess_basicCommand() {
        String sessionId = "test_session";

        // Try to execute with non-existent script type
        try {
            scriptExecutor.execute("nonexistent", "some script");
            fail("Expected ScriptEngineException");
        } catch (ScriptEngineException e) {
            assertTrue(e.getMessage().contains("nonexistent"));
        }
    }

    @Test
    public void test_execute_withNullScriptType() {

     * @param cause   the cause (which is saved for later retrieval by the
     *                {@link #getCause()} method). A {@code null} value is
     *                permitted, and indicates that the cause is nonexistent or unknown.
     */
    public InterpolatorException(String message, Throwable cause) {
        super(message, cause);
    }

        assertNull(dataStoreParams.get("key3"));
    }

    // Test get for non-existent key
    @Test
    public void test_getNonExistentKey() {
        assertNull(dataStoreParams.get("nonexistent"));
    }

    // Test getAsString with String value
    @Test
    public void test_getAsStringWithStringValue() {
        dataStoreParams.put("stringKey", "stringValue");

    public void test_init_nonExistentDirectory() {
        ThumbnailManager manager = new ThumbnailManager() {
            @Override
            public void init() {
                baseDir = new File(tempDir, "nonexistent/dir");
                if (baseDir.mkdirs()) {
                    logger.info("Created: {}", baseDir.getAbsolutePath());
                }
                if (!baseDir.isDirectory()) {

        HandleInfo info = manager.getHandleByPath("/test/file.txt");
        assertNotNull(info);
        assertEquals(guid, info.getCreateGuid());

        assertNull(manager.getHandleByPath("/nonexistent/file.txt"));
    }

    @Test
    public void testMultipleHandles() {
        HandleGuid guid1 = manager.requestDurableHandle("/test/file1.txt", HandleType.DURABLE_V2, 120000, null);

            assertTrue("Field " + field + " should be found", queryFieldConfig.isSortField(field));
        }

        // Test negative cases
        assertFalse(queryFieldConfig.isSortField("nonexistent"));
        assertFalse(queryFieldConfig.isSortField("title"));
        assertFalse(queryFieldConfig.isSortField(""));
        assertFalse(queryFieldConfig.isSortField(null));
    }

    /**

        thread.start();
        thread.join(1000);

        assertTrue(thread.contains("exact line"));
        assertTrue(thread.contains("another line"));
        assertFalse(thread.contains("nonexistent"));
    }

    @Test
    public void test_contains_withTrimming() throws InterruptedException {
        String input = "  trimmed line  \n\tanother\t";