test: changed test duplicate to cover exception path

tests/nomad/test_nomad_service.py

@@ -3,7 +3,7 @@
 import httpx
 import pytest
 
-from jupyterhub_nomad_spawner.nomad.nomad_service import NomadService
+from jupyterhub_nomad_spawner.nomad.nomad_service import NomadService, NomadException
 
 
 @pytest.mark.respx(base_url="http://localhost:4646")
@@ -38,9 +38,9 @@ async def test_register_volume(respx_mock):
 
 @pytest.mark.respx(base_url="http://localhost:4646")
 @pytest.mark.asyncio
-async def test_register_volume(respx_mock):
+async def test_register_existing_volume(respx_mock):
     respx_mock.put(
-        "/v1/volume/csi/volume123",
+        "/v1/volume/csi/volume123/create",
         json={
             "Volumes": [
                 {
@@ -50,14 +50,21 @@ async def test_register_volume(respx_mock):
                     "ExternalID": "volume123",
                     "Name": "volume123",
                     "PluginID": "csi_plugin_1",
+                    "RequestedCapabilities": [
+                        {
+                            "AccessMode": "single-node-writer",
+                            "AttachmentMode": "file-system",
+                        }
+                    ],
                 }
             ]
         },
-    ).mock(return_value=httpx.Response(200))
+    ).mock(return_value=httpx.Response(403))
 
-    async with httpx.AsyncClient(base_url="http://localhost:4646") as client:
-        service = NomadService(client=client, log=logging.getLogger("test"))
-        await service.create_volume(id="volume123", plugin_id="csi_plugin_1")
+    with pytest.raises(NomadException):
+        async with httpx.AsyncClient(base_url="http://localhost:4646") as client:
+            service = NomadService(client=client, log=logging.getLogger("test"))
+            await service.create_volume(id="volume123", plugin_id="csi_plugin_1")
 
 
 @pytest.mark.respx(base_url="http://localhost:4646")