To improve overall consistency of test executions, Android Studio now uses Gradle to run all unit tests by default.
In many cases, this change will not affect your testing workflow in the IDE. However, if you're using custom Android JUnit run configurations, you will need to migrate these configurations to Gradle run configurations.
To learn more, see the release notes.
On Linux and macOS machines, update patches are not working for Canary 2. To upgrade to the Canary 2 release, download and install the full version.
This update includes fixes for the following issues: