package com.example.miniandroidapp13_websocket02; import android.content.Context; import androidx.test.platform.app.InstrumentationRegistry; import androidx.test.ext.junit.runners.AndroidJUnit4; import org.junit.Test; import org.junit.runner.RunWith; import static org.junit.Assert.*; /** * Instrumented test, which will execute on an Android device. * * @see <a href="http://d.android.com/tools/testing">Testing documentation</a> */ @RunWith(AndroidJUnit4.class) public class ExampleInstrumentedTest { @Test public void useAppContext() { // Context of the app under test. Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext(); assertEquals("com.example.miniandroidapp13_websocket02", appContext.getPackageName()); } }