Supported Test Frameworks

App Center Test is a test automation service for native and hybrid mobile applications. The list below outlines the test frameworks currently supported.

Test framework	Vendor	Language	Documentation & resources
Appium	Open Source	Java with JUnit	https://appium.io
Calabash	Microsoft	Ruby with Cucumber	https://github.com/calabash/calabash-ios
Espresso	Google	Java or Kotlin	https://developer.android.com/training/testing/espresso/
Xamarin.UITest (iOS, Android)	Microsoft	C# or F# with NUnit	UITest
XCUITest	Apple	Swift or Objective-C	Testing with Xcode - User Interface Testing

For teams selecting a test framework for the first time, it's recommended to use the framework that's native to the platform.

• Espresso for Android apps
• Xamarin.UITest for Xamarin cross-platform apps
• XCUITest for iOS apps

The outlier to this approach is Appium. Appium may be a good choice for teams with either Appium or Selenium experience or for teams with non-Xamarin apps that desire cross-platform tests. More information is available on the Appium website.