在SurfaceView上执行Espresso view操作

我有课 GameView 扩展自 SurfaceView . 我在activity\u主布局中添加了以下视图:

gameView = new GameView(MainActivity.this);
activity_main = findViewById(R.id.activity_main);
activity_main.addView(gameView);

现在,我想使用Espresso UI测试在此SurfaceView上执行任何查看操作(即单击)。到目前为止,我想到了这个:

DataInteraction surfaceView = onData(instanceOf(GameView.class))
.inAdapterView(withClassName(is("android.view.SurfaceView")));
    surfaceView.perform(click());

但这不是正确的方法,因为它会产生以下错误:

android.support.test.espresso.NoMatchingViewException: No views in hierarchy found matching: with class name: is "android.view.SurfaceView"

我怎样才能找到风景?