Posted by Sachiyo Sugimoto, Android Partner Engineering
A strength of Android is its diverse ecosystem of devices, brought to market by more than 24K distinct devices, and used by billions of people around the world. Since the early releases of Android, we’ve invested in our Android Compatibility Program as a way to ensure that devices continue to provide a stable, consistent environment for apps.
The Compatibility Test Suite (CTS) is a key part of the program - it is a collection of more than two million test cases that check Android device implementations to ensure developer applications run on a variety of devices and enable a consistent application experience for users.Device makers run CTS on their devices throughout the development process, and use it to identify and fix bugs early. Over the years we have constantly expanded the suite by adding new test cases, and today CTS includes more than 2 million tests. It is still growing - as Android evolves, there are new areas to cover and there are also gaps where we are constantly working to create additional tests. While most CTS tests are written by Android engineers, we know that app developers have a unique perspective on actual device compatibility issues. So to enhance CTS with better input from app developers, we are adding a new test suite called CTS-D that is built and run by developers like you.
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