In the build.gradle file of your Android app module add next dependencies:
dependencies {   
    // Android JUnit Runner     
    androidTestCompile 'com.android.support.test:runner:0.5'
    // JUnit4 Rules
    androidTestCompile 'com.android.support.test:rules:0.5'
    // Espresso core
    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
    // Espresso-contrib for DatePicker, RecyclerView, Drawer actions, Accessibility checks, CountingIdlingResource
    androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.2.2'
    //UI Automator tests
    androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.2.2'
}
Specify the AndroidJUnitRunner for the testInstrumentationRunner parameter in the build.gradle file.
android {
  defaultConfig {
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  }
}
Additionally, add this dependency for providing intent mocking support
androidTestCompile 'com.android.support.test.espresso:espresso-intents:2.2.2'
And add this one for webview testing support
// Espresso-web for WebView support
androidTestCompile 'com.android.support.test.espresso:espresso-web:2.2.2'
 
                