Device Automator is an Android library built on top of the UI Automator testing framework. Device Automator provides an easy to use syntax for writing UI Automator tests that interact across apps and the device itself. The Device Automator API very closely resembles the Espresso API and similarly encourages test authors to think in terms of what a user might do while interacting with the application - locating UI elements and interacting with them.

Add the dependency in your build.gradle file:

dependencies {
  androidTestCompile 'com.lukekorth:device-automator:1.1.0'
}

To use the latest build from the master branch use:

dependencies {
  androidTestCompile 'com.lukekorth:device-automator:1.1.0-SNAPSHOT'
}

Add the following line to your build.gradle file in android.defaultConfig:

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

It's recommended that you start every test from your device's home screen. To do that, run the following before each test:

onDevice().onHomeScreen();

To launch an app, call:

onDevice().launchApp("com.myapp.package");

To click on a view:

onDevice(withText("My Button")).perform(click());

To type text:

onDevice(withText("Enter text here")).perform(setText("foobar"));

To make assertions after interacting:

onDevice(withContentDescription("message field")).check(text(containsString("my message")));