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 10 application with code like this:

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?

  • Just curious, are you using a unit testing framework and if so which one? Are you mocking ArcObjects?
    – blah238
    May 1, 2012 at 22:05
  • 1
    Using standard VS2010 testing framework. I'm not mocking AO, using ArcMap automation & PGDB. Later in my project, I plan to fascade AO with custom abstract API based on OGC Simple Feature. Then it will be more realistic to use mocking.
    – megadrofan
    May 1, 2012 at 22:50

1 Answer 1


Adding this line fixes the issue


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