Some persistence testing

shared/workspaces/test/test_persistence.py

 from schema import create_session
-from workspaces.services import WorkflowInfo
+from workspaces.capability_interfaces import CapabilityInfoIF
+from workspaces.services import WorkflowInfo, CapabilityInfo
+from workspaces.workflow_interfaces import WorkflowInfoIF
+
+
+def get_workflow_info() -> WorkflowInfoIF:
+    """Return a WorkflowInfo based on a real database connection"""
+    return WorkflowInfo(create_session("SDM"))
+
+
+def get_capability_info() -> CapabilityInfoIF:
+    """Return a CapabilityInfo based on a real database connection"""
+    return CapabilityInfo(create_session("SDM"))
 
 
 def test_persisting_workflow_request():
-    info = WorkflowInfo(create_session("SDM"))
+    """Ensure we can persist a workflow request"""
+    info = get_workflow_info()
     null = info.lookup_workflow_definition("null")
     req = info.create_workflow_request(null, {})
+    assert req.workflow_request_id is not None
+
+
+def test_reading_workflows():
+    """Ensure we can get workflows"""
+    info = get_workflow_info()
+    workflows = info.all_workflows()
+    assert len(workflows) > 0
+
+
+def test_reading_capability():
+    """Ensure we can get a capability"""
+    info = get_capability_info()
+    null = info.lookup_capability("null")
+    assert null is not None