What is the right way to automate ArcMap 10 with ArcObjects for unit testing?

Question

I need to run unit tests against ArcMap extension which closely coupled with specific edit workspace and map state. When I try to initialize ArcMap application with code like this:

ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.Desktop);
IDocument pdoc = new MxDocumentClass();
_application = pdoc.Parent;

I receive error "The runtime application type must be specified before license initialization". Is there any workaround or better way for unit testing?

Answer 1

Adding this line fixes the issue

ESRI.ArcGIS.RuntimeManager.BindLicense(ESRI.ArcGIS.ProductCode.Desktop);