ASSERT_EQ(1, path_outputs.size());

    test::ExpectTensorEqual<tstring>(
        test::AsTensor<tstring>({"foo.txt"}, TensorShape({})), path_outputs[0]);
  }

  void CheckSavedModelBundle(const string& export_dir,
                             const SavedModelBundleLite& bundle) {
    ValidateAssets(export_dir, bundle);
    // Retrieve the regression signature from the bundle.

    ASSERT_EQ(1, path_outputs.size());

    test::ExpectTensorEqual<tstring>(
        test::AsTensor<tstring>({"foo.txt"}, TensorShape({})), path_outputs[0]);
  }

  void CheckSavedModelBundle(const string& export_dir,
                             const SavedModelBundle& bundle) {
    ValidateAssets(export_dir, bundle);
    // Retrieve the regression signature from meta graph def.