WorkflowInfo/CapabilityInfo: added methods to test persistence

shared/workspaces/src/workspaces/services.py

 """
 Services defined by the Workspaces system, to be used by our APIs and client programs.
 """
-import shutil
 import stat
 import threading
 import subprocess
@@ -294,6 +293,19 @@ class CapabilityInfo(CapabilityInfoIF):
             .one()
         )
 
+    def requests_for_capability(self, capability_name: str) -> List[CapabilityRequest]:
+        """
+        Gets all capability requests for a given capability
+        :param capability_name: Name of capability
+        :return: List of associated requests
+        """
+        capability = self.lookup_capability(capability_name)
+        return (
+            self.session.query(CapabilityRequest)
+            .filter_by(capability_id=capability.id)
+            .all()
+        )
+
 
 class CapabilityEngine(CapabilityEngineIF):
     """
@@ -486,7 +498,9 @@ class WorkflowService(WorkflowServiceIF):
         log_file = self._execute_prepared(temp_folder)
 
         # 6. start reading log file
-        monitor = WorkflowMonitor(logfile_path=(log_file), workflow_request_id=request.workflow_request_id)
+        monitor = WorkflowMonitor(
+            logfile_path=(log_file), workflow_request_id=request.workflow_request_id
+        )
         # parse events from log
         events = monitor.events
         with workflow_events:
@@ -609,6 +623,9 @@ class WorkflowInfo(WorkflowInfoIF):
     def all_workflows(self) -> List[Workflow]:
         return self.session.query(Workflow).all()
 
+    def all_workflow_requests(self) -> List[WorkflowRequest]:
+        return self.session.query(WorkflowRequest).all()
+
     def create_workflow_request(
         self, workflow: Workflow, argument: Dict
     ) -> WorkflowRequest: