test android loading resources

I'm implementing a way to obfuscate an apk's strings.xml file, and later de-obfuscating it without changing the java resource calls. To test my solution, I need some android project that uses lots of different ways to load string resources. I'm guessing there is some project/framework that does that, but didn't find any.

For example some of the tests I did:

simple testing getTest and setText:

TextView textView2 = findViewById(R.id.new_text);
String my_context = textView2.getContext().getString(R.string.new_text);
textView2.setText(my_context);

testing setPositiveButton

AlertDialog.Builder buildexit=new AlertDialog.Builder(this);
buildexit.setPositiveButton(R.string.setpos, new DialogInterface.OnClickListener() {
   @Override
   public void onClick(DialogInterface dialog, int which) {
      Log.i("my_app", "onClick pressed");
   }
});

testing EditText using styles.xml:

EditText editText = findViewById(R.id.editTextLineNumber);
String content = editText.getText().toString();

activity.xml:

<EditText
    android:id="@+id/editTextLineNumber"
    style="@style/MainEditText"/>

styles.xml:

<style name="MainEditText">
    <item name="android:layout_marginTop">15dp</item>
    <item name="android:hint">@string/line_hint</item>
    <item name="android:text">@string/line_hint_text</item>
    <item name="android:name">@string/line_hint_name</item>
    <item name="android:maxLines">1</item>
    <item name="android:inputType">number</item>
</style>

prefereably it would be some automated test, such as done in https://medium.com/android-testing-daily/unit-testing-xml-resources-7387447f9ef7