ActivityInstrumentationTestCase2 GridView ClickItem

I think must be selected whether onClickItemListener API or onClickListener() API.
First, Test Target Activity...
Reference Basic GirdView Program to here.

Add OnItemClickListener() include GridView. It is selected position information.
OnItemClickListener Class.

mGridView.setOnItemClickListener(new OnItemClickListener() {

 @Override
 public void onItemClick(AdapterView arg0, View arg1, int position,
   long id) {
  Log.d("GridViewActivity", "onItemClick " + position + " " + id);
  
 }
 
});

Second, Tester. It is extends ActivityInstrumentationTestCase2. I call performItemClick with GridView and postion. must be UIThread

mActivity.runOnUiThread(new Runnable() {
 public void run() {
  
  Log.d("GridViewActivity", "performItemClick 3");
  gridview.performItemClick(gridview, 3, 0);
  
  
 }
});
mInstrumentation.waitForIdleSync();

Check Logcat.

performItemClick 3
onItemClick 3 0

It is OK.
  Test target source code is here.
  Tester source code is here.