package com.gyf.lib import androidx.test.ext.junit.runners.AndroidJUnit4 import androidx.test.platform.app.InstrumentationRegistry import org.junit.Assert.* import org.junit.Test import org.junit.runner.RunWith /** * Instrumented test, which will execute on an Android device. * * See [testing documentation](http://d.android.com/tools/testing). */ @RunWith(AndroidJUnit4::class) class ExampleInstrumentedTest { @Test fun useAppContext() { // Context of the app under test. val appContext = InstrumentationRegistry.getInstrumentation().targetContext assertEquals("com.gyf.lib.test", appContext.packageName) } }