Read more about Espresso: https://goo.gl/7PDMH5
IdlingResource: https://goo.gl/e8UYHq
Download Android Studio 2.3 here: https://goo.gl/W4PcoC
Learn how to use the Espresso Test Recorder in Android Studio 2.3 to add UI test to your app. Whether you’re just learning the Espresso framework or you want to create a base for your UI test suite quickly, the Test Recorder is a great tool that will make the job faster and easier by creating most of the code for you!
