I use Visual Studio 2015 with NUnit 2.6, and I'm able to run my unit tests from the UI and see the code coverage in Visual Studio. -- My solution has about 10 projects in it.
I'd like to be able to script this process and invoke it from the command line, but when I'm looking through the NUnit command line arguments, I'm not seeing anything related to code coverage. And the documentation is not appearing to be very friendly here.
What specific command-line arguments should I use to run all of the NUnit unit tests in my solution, from the command line, and have it report a code coverage number (preferably in an output file that's in a machine readable format -- such as XML or JSON)?