How to retrieve test results when using "adb shell am instrument"

I'm executing some tests in my Android device by using the following command:

adb shell am instrument -w package.name/android.test.runner.AndroidJUnitRunner

I can see the test progress and simple results through STDOUT. But, does this process also generates a results file inside the device (xml, html, etc)? If yes, where is it stored?

Thanks

Solution

But, does this process also generates a results file inside the device (xml, html, etc)?

No, it does not.

Report generation is generally handled at a higher layer than 'am instrument'. If you run your tests using Gradle, it should generate the report for you. I believe this is what Android Studio relies on as well.

If you must generate the report from the test itself, you can use a custom test runner. See this answer for one way to do it: http://www.stackoverflow.com/a/5574418/1999084