Hi Ignas,

The Atomic attribute only works when applied at fixture or assembly level. I'm not sure how your acceptance tests are structured, but the attribute usually should be placed on the same class containing the methods that use the Xunit attributes (like Fact).

My understanding of the design of Xunit is that it will usually create a new fixture instance for each call to every method on the fixture. So if you have a fixture containing three 'Fact' methods, then the fixture constructor will be called 3 times, once for each Fact. This should be the same behaviour as under Resharper, since both NCrunch and Resharper invoke Xunit for this handling and Xunit encapsulates this behaviour completely.

A way you can check whether AtomicAttribute is being detected by NCrunch is to turn on the 'Is Atomic' column in the Tests Window and check whether the tests you've marked up are considered to be atomic.