Espresso test case for share app in android

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Java

Android

unit-testing

I have created a share button and on clicking that you have share app link option where you can share in various app. So I just wanted to test this sharing app. I am new in the android and till now I did not got any good material related to this topic and if got then not understood that much.

Code for share app
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

sharebtn = findViewById(R.id.sharebtn);
sharebtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent shareintent = new Intent(Intent.ACTION_SEND);
shareintent.setType("text/plain");
String shareBody = "Download this one : https://play.google.com/store/apps/details?id=com.hwkrbbt.downloadall&hl=en_IN&gl=US";
String sharesubject = "learning the share app";

shareintent.putExtra(Intent.EXTRA_SUBJECT,sharesubject);
shareintent.putExtra(Intent.EXTRA_TEXT, shareBody);
startActivity(Intent.createChooser(shareintent,"Share Using"));

//startActivity(shareintent);
}
});
}

What I have tried:

I have done testing of dialer with code like that

onView(withId(R.id.button)).perform(click());

intended(allOf( hasAction(Intent.ACTION_DIAL), hasData(INTENT_DATA_PHONE_NUMBER), toPackage(PACKAGE_ANDROID_DIALER)));

I was thinking similar to this only in share app also by replacing Intent.ACTION_DIAL to Intent.ACTION_SEND and INTENT_DATA_PHONE_NUMBER to MESSAGE_TO_SENT but not succeeded and later come to know that share app do not have any package as package is related to app only. So I just wanted to know that how can I write the UI test case for share app.