add test for checking input-output compatibility

Author: bisgaard-itis

services/web/server/tests/unit/with_dbs/01/test_catalog_handlers__services.py

@@ -184,7 +184,7 @@ async def test_list_inputs(
     )
 
     response = await client.get(f"{url}")
-    data, error = await assert_status(response, status.HTTP_200_OK)
+    data, _ = await assert_status(response, status.HTTP_200_OK)
     TypeAdapter(list[ServiceInputGet]).validate_python(data)
 
 
@@ -212,10 +212,47 @@ async def test_get_inputs(
         input_key=next(iter(service_payload["inputs"].keys())),
     )
     response = await client.get(f"{url}")
-    data, error = await assert_status(response, status.HTTP_200_OK)
+    data, _ = await assert_status(response, status.HTTP_200_OK)
     ServiceInputGet.model_validate(data)
 
 
+@pytest.mark.parametrize(
+    "user_role",
+    [UserRole.USER],
+)
+async def test_get_compatible_inputs_given_source_outputs(
+    client: TestClient, logged_user: UserInfoDict, aioresponses_mocker: AioResponsesMock
+):
+    url_pattern = re.compile(r"http://catalog:8000/v0/services/.*")
+    service_payload = ServiceGetV2.model_json_schema()["examples"][0]
+    for _ in range(2):
+        aioresponses_mocker.get(
+            url_pattern,
+            status=status.HTTP_200_OK,
+            payload=service_payload,
+        )
+
+    service_key = "simcore/services/comp/itis/sleeper"
+    service_version = "0.1.0"
+    assert client.app and client.app.router
+    url = (
+        client.app.router["get_compatible_inputs_given_source_output"]
+        .url_for(
+            service_key=urllib.parse.quote(service_key, safe=""),
+            service_version=service_version,
+        )
+        .with_query(
+            {
+                "fromService": "simcore/services/comp/itis/sleeper",
+                "fromVersion": "0.1.0",
+                "fromOutput": "output_1",
+            }
+        )
+    )
+    response = await client.get(f"{url}")
+    _, _ = await assert_status(response, status.HTTP_200_OK)
+
+
 @pytest.mark.parametrize(
     "user_role",
     [UserRole.USER],