Add test script

src/manager.py

@@ -47,7 +47,7 @@ class Manager:
         """
         self.services_list.append(service_instance)
 
-    def register_service(self, service_tag: str, service_name: str, service_path: str) -> Service:
+    def register_service(self, service_tag: str, service_name: str, service_path=None) -> Service:
         """Register a new service.
 
         Args:
@@ -58,7 +58,9 @@ class Manager:
         Returns:
             service: A web service instance.
         """
+
         if service_tag == "docker":
+            assert service_path != None, """Can not leave a empty path while you register a docker-deploy service."""
             if not os.path.exists(service_path):
                 raise ValueError(f"Invalid service path: {service_path}")
             service = Service(tag=service_tag, name=service_name, path=service_path)

src/services.py

@@ -41,9 +41,9 @@ class Service:
     """A template management for web services
 
     Attributes:
-        tag ('sys' | 'docker'): The tag that marks the service instance to use which way to deploy.
-        name (str): The name of the service instance.
-        path (str): The configuration and data path of the service instance.
+        _tag ('sys' | 'docker'): The tag that marks the service instance to use which way to deploy.
+        _name (str): The name of the service instance.
+        _path (str): The configuration and data path of the service instance.
     """
 
     def __init__(self, tag: str, name: str, path=None):