使用Espresso的Android UI测试在AlertDialog内部视图 [英] Android UI testing with Espresso on an AlertDialog inner views

问题描述

我正在使用Espresso测试一个AlertDialog内部的ListView，但是不断获得NoMatchingViewException。 Dialog有一个ListView，用于读取设备中的帐户。

  AlertDialog.Builder builder = new AlertDialog.Builder（activity_reference）; 
 builder.setTitle（R.string.main_dialog_title）; 
 ListView lv = new ListView（activity_reference）; 
 ArrayAdapter< String> adapter = new ArrayAdapter< String> 
（activity_reference，android.R.layout.simple_list_item_1，android.R.id.text1，
 gUsernameList）; 
 lv.setAdapter（adapter）; 
 lv.setOnItemClickListener（new AdapterView.OnItemClickListener（）{
 public void onItemClick（AdapterView<？> parent，View view，int position，long id）{
 Toast.makeText（activity_reference， 你选择了：+ gUsernameList.get（position），Toast.LENGTH_LONG）.show（）; 
 account_selected = gUsernameList.get（position）; 
} 
} 
） ; 
 
 builder.setView（lv）; 
 builder.setPositiveButton（OK，new DialogInterface.OnClickListener（）
 {
 public void onClick（DialogInterface dialog，int whichButton）{
 if（account_selected == null）{ 
 return; 
} 
 dialog.dismiss（）; 
 Intent myIntent = new Intent（activity_reference，GraphActivity.class）; 
 myIntent.putExtra（account_selected account_selected）; //可选参数
 activity_reference.startActivity（myIntent）; 
} 
} 
）; 
 final对话框= builder.create（）; 
 dialog.show（）; 
  

在测试中

  onView（withText（R.string.test_account））器InRoot（isDialog（））检查（匹配（isDisplayed（）））。。 
  

我做错了吗？
事先感谢。

编辑：我尝试使用UIAutomator，但是得到UIObjectNotFoundException，虽然它显然在uiautomatorviewer中。

解决方案

似乎我只是缺少启动代码。

  mDevice = UiDevice.getInstance（InstrumentationRegistry.getInstrumentation（））; 
 activityTestRule.getActivity（）; 
  

对于错误的闹钟，对不起。

I'm testing a click on an AlertDialog's inner ListView using Espresso but keep getting NoMatchingViewException. The Dialog has a ListView that reads the accounts in the device.

 AlertDialog.Builder builder = new AlertDialog.Builder(activity_reference);
    builder.setTitle(R.string.main_dialog_title);
    ListView lv = new ListView(activity_reference);
    ArrayAdapter<String> adapter = new ArrayAdapter<String>
            (activity_reference, android.R.layout.simple_list_item_1, android.R.id.text1,
                    gUsernameList);
    lv.setAdapter(adapter);
    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
              Toast.makeText(activity_reference, "You selected :" + gUsernameList.get(position), Toast.LENGTH_LONG).show();
              account_selected = gUsernameList.get(position);
        }
      }
    );

    builder.setView(lv);
    builder.setPositiveButton("OK", new DialogInterface.OnClickListener()
            {
                public void onClick(DialogInterface dialog, int whichButton) {
                    if (account_selected == null) {
                        return;
                    }
                    dialog.dismiss();
                    Intent myIntent = new Intent(activity_reference, GraphActivity.class);
                    myIntent.putExtra("account_selected", account_selected); //Optional parameters
                    activity_reference.startActivity(myIntent);
                }
            }
    );
    final Dialog dialog = builder.create();
    dialog.show();

And in the test

onView(withText(R.string.test_account)).inRoot(isDialog()).check(matches(isDisplayed()));

Am I doing anything wrong ? Thanks beforehand.

Edit : I tried using UIAutomator too but gets UIObjectNotFoundException, although it is clearly there in the uiautomatorviewer.

解决方案

It seems I was just missing the initiation codes.

mDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());
    activityTestRule.getActivity();

Sorry for the false alarm.

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