JUnit 4 also features test fixtures which provide support for sequencing tests by using annotations such as and This is useful where you need to need to put the application into a particular state before running unit tests. Some common assertions supported by JUnit 4 are: JUnit 4 has a feature called assertions which allows for testing the result of actual behaviour of an application against expected behaviour. JUnit 4 is a popular Java based open source framework used for writing and running unit tests.

Appium (test automation framework based on WebDriver protocol)įor each tool I will cover some information about where it is best used for testing an Android app, how to get started retrieving any dependencies along with any test class code samples where applicable.

UI Automator (user interface testing tool for interactions across multiple apps).

Firebase App Distribution (tool for distributing mobile app builds to testers).

Firebase Test Lab (tool running tests on your Android app on a physical or virtual device in the cloud).

AndroidX Test (testing library available under Jetpack).

Robolectric (testing framework which supports running testing Android components on JVM).

Espresso (user interface testing framework).

I have put together an article covering 11 useful testing tools, libraries and frameworks to use for Android which includes the following:

It is hard to understand which tool to use for what type of tests whether that is unit testing, mocking, user interface testing or integration testing. There is a large selection of different testing tools, libraries and frameworks available for Android.

Download junit sdk for android studio