add windows_desktop to listResources (#40711)

lib/services/local/presence.go

@@ -1575,6 +1575,9 @@ func (s *PresenceService) listResources(ctx context.Context, req proto.ListResou
 	case types.KindWindowsDesktopService:
 		keyPrefix = []string{windowsDesktopServicesPrefix}
 		unmarshalItemFunc = backendItemToWindowsDesktopService
+	case types.KindWindowsDesktop:
+		keyPrefix = []string{windowsDesktopsPrefix}
+		unmarshalItemFunc = backendItemToWindowsDesktop
 	case types.KindKubeServer:
 		keyPrefix = []string{kubeServersPrefix}
 		unmarshalItemFunc = backendItemToKubernetesServer
@@ -1925,6 +1928,17 @@ func backendItemToServer(kind string) backendItemToResourceFunc {
 	}
 }
 
+// backendItemToWindowsDesktop unmarshals `backend.Item` into a
+// `types.WindowsDesktop`, returning it as a `types.ResourceWithLabels`.
+func backendItemToWindowsDesktop(item backend.Item) (types.ResourceWithLabels, error) {
+	return services.UnmarshalWindowsDesktop(
+		item.Value,
+		services.WithResourceID(item.ID),
+		services.WithExpires(item.Expires),
+		services.WithRevision(item.Revision),
+	)
+}
+
 // backendItemToWindowsDesktopService unmarshals `backend.Item` into a
 // `types.WindowsDesktopService`, returning it as a `types.ResourceWithLabels`.
 func backendItemToWindowsDesktopService(item backend.Item) (types.ResourceWithLabels, error) {

lib/services/local/presence_test.go

@@ -688,6 +688,25 @@ func TestListResources(t *testing.T) {
 				return presence.DeleteAllWindowsDesktopServices(ctx)
 			},
 		},
+		"WindowsDesktop": {
+			resourceType: types.KindWindowsDesktop,
+			createResourceFunc: func(ctx context.Context, presence *PresenceService, name string, labels map[string]string) error {
+				desktopService := NewWindowsDesktopService(presence.Backend)
+				desktop, err := types.NewWindowsDesktopV3(name, labels, types.WindowsDesktopSpecV3{
+					Addr: "localhost:1234",
+				})
+				if err != nil {
+					return err
+				}
+
+				err = desktopService.UpsertWindowsDesktop(ctx, desktop)
+				return err
+			},
+			deleteAllResourcesFunc: func(ctx context.Context, presence *PresenceService) error {
+				desktopService := NewWindowsDesktopService(presence.Backend)
+				return desktopService.DeleteAllWindowsDesktops(ctx)
+			},
+		},
 	}
 
 	for testName, test := range tests {