nUnit Test Adapter 10 second limit: long-running tests in nUnit

Question

I have some tests in nUnit that call an external program that sometimes takes more than 10 seconds to finish. This works fine when I run them in nUnit's "Unit Test Sessions" panel. However, when I use the test adapter (which has the benefits of more through error output and automatic test discovery), I get the following error:

The request has taken more than 10 seconds to respond, aborting it.
Exception has been thrown by the target of an invocation.

Is there any way I can extend this time limit for my tests? Is this an issue with the adapter, or with Visual Studio itself?

Edit: To clarify, I know that mocking out time-consuming functionality is the proper thing to do. Right now, though, it's not worth the time (in my estimation) that it would take to refactor my unit tests.

Answer 1

It has nothing to do with VS, as the Resharper is able to run tests well exceeding 10 seconds. This is most likely a limitation of the adapter.