enhanced errors

Author: Andrei Neagu

packages/service-library/src/servicelib/long_running_tasks/errors.py

@@ -7,7 +7,7 @@ class BaseLongRunningError(OsparcErrorMixin, Exception):
 
 class TaskNotRegisteredError(BaseLongRunningError):
     msg_template: str = (
-        "no task with task_name='{task_name}' was found in the task registry. "
+        "no task with task_name='{task_name}' was found in the task registry tasks={tasks}. "
         "Make sure it's registered before starting it."
     )
 

packages/service-library/src/servicelib/long_running_tasks/task.py

@@ -466,7 +466,9 @@ async def start_task(
         **task_kwargs: Any,
     ) -> TaskId:
         if registered_task_name not in TaskRegistry.REGISTERED_TASKS:
-            raise TaskNotRegisteredError(task_name=registered_task_name)
+            raise TaskNotRegisteredError(
+                task_name=registered_task_name, tasks=TaskRegistry.REGISTERED_TASKS
+            )
 
         task = TaskRegistry.REGISTERED_TASKS[registered_task_name]