Temporary fix for nunit tests with Nancy FX and Monodevelop runner

Readme

Source of the problem:
when running a NancyFX based application under Monodevelop it fails during the AssemblyScanner phase of the Nancy bootstrapper

Fix:
1) get the sources of Nancy
2) create a static configuration class just to decouple the ignored assemblies configuration option (AppDomainAssemblyTypeScannerIgnoreHelper)
3) change the ctor of the AppDomainAssemblyScanner to initialize the ignoredAssemblies values from the previously created class
4) add an ignore list with "nunit" pattern before using the Nancy bootstrapper in your tests


Btw, it will be fixed on the next version of Nancy as far as the initial auto-registry will be removed by default. This gist is only here to provide a quick and dirty alternative waiting for that.

Nancy fix update

// 2)
public static  class AppDomainAssemblyTypeScannerIgnoreHelper
{

   private static IEnumerable<Func<Assembly,bool>> _ignoreList;
   public static IEnumerable<Func<Assembly,bool>> IgnoreList 
   {
      get { return _ignoreList;}
      set {_ignoreList = value;}
   }

}

// 3) update the static ctor of AppDomainAssemblyTypeScanner:
static AppDomainAssemblyTypeScanner()
{
   ignoredAssemblies = AppDomainAssemblyTypeScannerIgnoreHelper.IgnoreList;
   LoadNancyAssemblies();
}

Testing code

List<Func<Assembly,bool>> list = new List<Func<Assembly,bool>>();
list.Add(a => a.FullName.ToLower().Contains("nunit"));
Nancy.Bootstrapper.AppDomainAssemblyTypeScannerIgnoreHelper.IgnoreList = list;

var b = new DefaultNancyBootstrapper();
Assert.That(b, Is.Not.Null);