api/server: Fix imports to support unittests.

api/server/__init__.py

@@ -0,0 +1 @@
+from .server import app

api/server/routes/aas_registry_server.py

@@ -4,7 +4,7 @@
 from fastapi import APIRouter, Request, HTTPException
 
 from basyx import ObjectStore
-from services.aas_registry_server_service import AasRegistryServerService
+from ..services.aas_registry_server_service import AasRegistryServerService
 
 
 class AasRegistryRouter:

api/server/routes/aasx_file_server.py

@@ -4,7 +4,7 @@
 from fastapi import APIRouter, Request, HTTPException
 
 from basyx import ObjectStore
-from services.aasx_flie_server_service import AasxFileServerService
+from ..services.aasx_flie_server_service import AasxFileServerService
 
 
 class AasxFileServerRouter:

api/server/routes/submodel.py

@@ -4,7 +4,7 @@
 from fastapi import APIRouter, Request, HTTPException
 
 from basyx import ObjectStore
-from services.submodel_service import SubmodelService
+from ..services.submodel_service import SubmodelService
 
 
 class SubmodelRouter:

api/server/routes/submodel_registry_server.py

@@ -4,7 +4,7 @@
 from fastapi import APIRouter, Request, HTTPException
 
 from basyx import ObjectStore
-from services.submodel_registry_server_service import SubmodelRegistryServerService
+from ..services.submodel_registry_server_service import SubmodelRegistryServerService
 
 
 class SubmodelRegistryRouter:

api/server/server.py

@@ -2,7 +2,7 @@
 import uvicorn
 
 # Import routers
-from routes import submodel, aasx_file_server, aas_registry_server, submodel_registry_server
+from .routes import submodel, aasx_file_server, aas_registry_server, submodel_registry_server
 
 from basyx import object_store
 

api/test/test_server.py

@@ -0,0 +1,17 @@
+import unittest
+from fastapi.testclient import TestClient
+from server import app  # Import your FastAPI app
+
+# Create a TestClient instance for your app
+client = TestClient(app)
+
+class TestFastAPIEndpoints(unittest.TestCase):
+    def test_registry_submodel_descriptors(self):
+        # Test the GET /items/{item_id} endpoint
+        response = client.get("/api/v3.0/submodels/")
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json(), [])
+
+
+if __name__ == "__main__":
+    unittest.main()

sdk/basyx/object_store.py

@@ -190,16 +190,16 @@ def get_parent_referable(self, id_short: str) -> Referable:
                         return element
         raise KeyError("there is no parent Identifiable for id_short {}".format(id_short))
 
-    def filter_identifiables_by_instance(self, instance: Type) -> list[Type]:
+    def get_identifiables_by_type(self, t: Type) -> list[Type]:
         """
         Get all identifiables of the specified type.
 
-        :param instance: The Type to filter by. For example, we can filter by "aas_core3.types.ConceptDescription"
+        :param t: The Type to filter by. For example, we can filter by "aas_core3.types.ConceptDescription"
         :return: The list of the filtered identifiables
         """
         filtered_identifiables = []
         for identifiable in self._backend.values():
-            if isinstance(identifiable, instance):
+            if isinstance(identifiable, t):
                 filtered_identifiables.append(identifiable)
         return filtered_identifiables