}

    @Test
    public void testIsInMemory_WithFile() throws IOException {
        // ## Arrange ##
        File tmpFile = File.createTempFile("cache-test-", ".tmp");
        tmpFile.deleteOnExit();
        ContentCache cache = new ContentCache(tmpFile);

        // ## Assert ##
        assertFalse(cache.isInMemory());
    }

    // --- getContentAsBytes() tests ---

    @Test

    public void test_process_withPropertiesPath() throws Exception {
        // Test process method with properties path
        File tempPropFile = File.createTempFile("test_thumbnail_", ".properties");
        tempPropFile.deleteOnExit();

        ThumbnailGenerator.Options options = new ThumbnailGenerator.Options();
        options.propertiesPath = tempPropFile.getAbsolutePath();
        options.numOfThreads = 1;
        options.cleanup = false;

    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);

        // Create a temporary test file
        testFile = File.createTempFile("test_stopwords", ".txt");
        testFile.deleteOnExit();

        // Write test data to file
        try (FileOutputStream fos = new FileOutputStream(testFile)) {
            fos.write(getTestContent().getBytes(StandardCharsets.UTF_8));
        }

    public void test_process_withPropertiesPath() {
        try {
            // Create temporary properties file
            File tempPropFile = File.createTempFile("test_suggest_", ".properties");
            tempPropFile.deleteOnExit();
            FileUtil.writeBytes(tempPropFile.getAbsolutePath(), "test.property=value".getBytes());

            SuggestCreator.Options options = new SuggestCreator.Options();

        testFile.deleteOnExit();
        // Ensure the test file is initially empty
        try (java.io.FileWriter fw = new java.io.FileWriter(testFile)) {
            fw.write("");
        }

        // Create a temporary project.properties file for SystemHelper
        File propFile = File.createTempFile("project", ".properties");
        propFile.deleteOnExit();

                    logger.debug("Deleted temp file: path={}", propFile.getAbsolutePath());
                }
                systemProperties.reload(propFile.getAbsolutePath());
                propFile.deleteOnExit();
            } catch (final Exception e) {
                logger.warn("Failed to create system properties file.", e);
            }
        }

        int totalCount = 0;
        int count = 1;

        super.setUp(testInfo);
        thumbnailJob = new GenerateThumbnailJob();

        // Create temporary directory
        tempDir = Files.createTempDirectory("test").toFile();
        tempDir.deleteOnExit();

        // Setup test components
        testProcessHelper = new TestProcessHelper();
        ComponentUtil.register(testProcessHelper, "processHelper");

        testSystemHelper = new TestSystemHelper();

            public Integer getLdapMaxUsernameLengthAsInteger() {
                return Integer.valueOf(-1);
            }
        };
        File file = File.createTempFile("test", ".properties");
        file.deleteOnExit();
        FileUtil.writeBytes(file.getAbsolutePath(), "ldap.security.principal=******@****.***".getBytes("UTF-8"));
        DynamicProperties systemProps = new DynamicProperties(file);

        ComponentUtil.register(fessConfig, "fessConfig");

        File propFile = File.createTempFile("test", ".properties");
        FileUtil.writeBytes(propFile.getAbsolutePath(), new byte[0]);
        propFile.deleteOnExit();
        systemProperties = new DynamicProperties(propFile);
        ComponentUtil.register(systemProperties, "systemProperties");

        pathMappingHelper = new PathMappingHelper() {
            @Override

    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);

        // Setup system properties for DI container
        File file = File.createTempFile("test", ".properties");
        file.deleteOnExit();
        FileUtil.writeBytes(file.getAbsolutePath(), "test.property=test".getBytes("UTF-8"));
        DynamicProperties systemProps = new DynamicProperties(file);
        ComponentUtil.register(systemProps, "systemProperties");