android - How do I know if my app is running with Robolectric?

Question

I have an android app that uses ORMLite/SQLite and I use Robolectric in conjunction with JUnit 4 to allow me to run unit tests in Android Studio and on a Jenkins build server.

Typically I would setup test data in my tests, in the setup, and then run my test scenarios against it but when I tried to do this I started getting issues and exceptions which seemed to be related to files being locked or something and that seems to be a problem others have had... so what I have done up until now is use the create database method in my database helper to create some dummy data which the tests expect to be there.

The problem is my application now needs to plug into a real database and I can't have it setup dummy data when it runs.

If there a way, within my database helper class, to detect if the code is executing on a device or within Robolectric?

Answer 1

This is what works well for me on Robolectric 3.

public static boolean isRoboUnitTest() {
    return "robolectric".equals(Build.FINGERPRINT);
}