• Make sure scriptcs is installed
• Install packages scriptcs -install
• Run scriptcs start.csx
• This will run NUnit unit tests declared in the attached MyUnitTests.dll test assembly

You can replace the test assembly with your own if you want, in the start.csx:

var path = "MyUnitTests.dll";
var runner = TestSetup.GetRunner(new[] {path});

Array of assemblies can be passed too.