Flicker Test Library

Motivation

This set of tests use the flickerlib from platform_testing/libraries/flicker to execute a set of common UI transitions to detect discontinuous or unpredictable behavior.

The tests are organized in packages according to the transitions they test (e.g., rotation, splitscreen).

Adding a Test

By default, tests should inherit from TestBase and override the variable transition (Kotlin) or the function getTransition() (Java).

Inheriting from this class ensures the common assertions will be executed, namely:

• all regions on the screen are covered
• status bar is always visible
• status bar is at the correct position at the start and end of the transition
• nav bar is always visible
• nav bar is at the correct position at the start and end of the transition

The default tests can be disabled by overriding the respective methods and including an @Ignore annotation.

For more examples of how a test looks like check ChangeAppRotationTest within the Rotation subdirectory.