Unity Test Runner Results File from Android and iOS

I launching play tests via this command:

C:\Unity\Unity_2017_4_1f1\Editor\Unity.exe -buildTarget android -projectPath C:\Projects\Game\GameUnity -runTests -testResults C:\Projects\Game\TestResult-Android.xml -testPlatform android -logFile PlayModeTests.log

Tests are launching on the device, but testResults file is not generated.

Can you help me with what I doing wrong?
Maybe file stays on the device and I need grab it with adb instruction?

I’v got exactly the same problem using unity 2018.2.9f1 with the sample project GitHub - Unity-Technologies/XRAutomatedTests: XRAutomatedTests is where you can find functional, graphics, performance, and other types of automated tests for your XR Unity development.
The test run fine but I cant find the result.xml specified with the parameter -testResults

Is it possible to run this through the editor UI? (e.g: Test runner window)

Does it give any different results when executed that way (vs running from the command line) ?