String path = "/path/to/document.pdf";

        Tuple3<String, String, String> task = thumbnailGenerator.createTask(path, null);
        assertNull(task);
    }

    @Test
    public void test_createTask_withEmptyDocMap() {
        // Test task creation with empty document map
        String path = "/path/to/document.pdf";
        Map<String, Object> docMap = new HashMap<>();