test(api): add regression coverage for prompt original_name during federation (#3087) (#3208)

* test(gateway): add regression tests for prompt original_name during federation

Add assertions to verify that original_name, custom_name, and display_name
are correctly set during federation prompt creation (issue #3087).

Signed-off-by: Oriol Morros Vilaseca <OM368@student.aru.ac.uk>

* .secrets.baseline

Signed-off-by: Jonathan Springer <jps@s390x.com>

---------

Signed-off-by: Oriol Morros Vilaseca <OM368@student.aru.ac.uk>
Signed-off-by: Jonathan Springer <jps@s390x.com>
Co-authored-by: Oriol Morros Vilaseca <OM368@student.aru.ac.uk>
Co-authored-by: Jonathan Springer <jps@s390x.com>

Author: 3 people

.secrets.baseline

@@ -3,7 +3,7 @@
     "files": "^.secrets.baseline|package-lock.json|Cargo.lock|scripts/sign_image.sh|scripts/zap|sonar-project.properties|uv.lock|^.secrets.baseline$",
     "lines": null
   },
-  "generated_at": "2026-04-11T13:00:03Z",
+  "generated_at": "2026-04-11T14:12:29Z",
   "plugins_used": [
     {
       "name": "AWSKeyDetector"
@@ -9044,55 +9044,55 @@
         "hashed_secret": "99834bc4eff3f1e1c1e4692d2476b593b501d045",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 5033,
+        "line_number": 5045,
         "type": "Secret Keyword",
         "verified_result": null
       },
       {
         "hashed_secret": "f2b14f68eb995facb3a1c35287b778d5bd785511",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 5038,
+        "line_number": 5050,
         "type": "Secret Keyword",
         "verified_result": null
       },
       {
         "hashed_secret": "1a91d62f7ca67399625a4368a6ab5d4a3baa6073",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 6575,
+        "line_number": 6587,
         "type": "Secret Keyword",
         "verified_result": null
       },
       {
         "hashed_secret": "2a23dd4f2e8b50315e601a2867ea7b7bf5a43b8c",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 7172,
+        "line_number": 7184,
         "type": "Secret Keyword",
         "verified_result": null
       },
       {
         "hashed_secret": "ed3e0017cb8e4b06a59af1a441f62cbe58d2ef59",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 7191,
+        "line_number": 7203,
         "type": "Secret Keyword",
         "verified_result": null
       },
       {
         "hashed_secret": "b55c6dc4705dba8b151c59566175ad845d5a9104",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 7397,
+        "line_number": 7409,
         "type": "Secret Keyword",
         "verified_result": null
       },
       {
         "hashed_secret": "3654bd5ef523a79741766b7c3f22228fd43c3836",
         "is_secret": false,
         "is_verified": false,
-        "line_number": 7416,
+        "line_number": 7428,
         "type": "Secret Keyword",
         "verified_result": null
       }

tests/unit/mcpgateway/services/test_gateway_service.py

@@ -3978,6 +3978,12 @@ async def test_register_gateway_creates_new_resources_and_prompts(gateway_servic
     assert added_gateway.prompts[0].title == "Prompt Title"
 
 
+    # Regression: verify namespacing fields are set (issue #3087)
+    federated_prompt = added_gateway.prompts[0]
+    assert federated_prompt.original_name == "Prompt"
+    assert federated_prompt.custom_name == "Prompt"
+    assert federated_prompt.display_name == "Prompt"
+
 
 @pytest.mark.asyncio
 async def test_shutdown_releases_redis_leader_success():
@@ -4754,6 +4760,12 @@ def test_new_prompt_created(self, gateway_service):
         result = gateway_service._update_or_create_prompts(db, [prompt], gw, "test")
         assert len(result) == 1
 
+        # Regression: verify namespacing fields are set (issue #3087)
+        created = result[0]
+        assert created.original_name == "new-prompt"
+        assert created.custom_name == "new-prompt"
+        assert created.display_name == "new-prompt"
+
     def test_existing_prompt_updated(self, gateway_service, mock_gateway):
         existing = MagicMock()
         existing.original_name = "my-prompt"