services/preferences/unittest_manifest.json

{
  "name": "prefs_unittests",
  "display_name": "Prefs Unittests",
  "interface_provider_specs": {
    "service_manager:connector": {
      "provides": {
        "service_manager:service_factory": [
          "service_manager::mojom::ServiceFactory"
        ]
      },
      "requires": {
        "preferences": [ "pref_client", "pref_control" ]
      }
    }
  }
}