c# - How to Moq NHibernate extension methods? -


i'm developing application using nhibernate orm, nunit unit testing , ninject di. i'm mocking isession so:

var session = new mock<isession>();

with regular non-mocked session objects can query them linq extension methods this:

var result = session.query<myentity>();

but when try mock following code...

session.setup(s => s.query<myentity>());

...i runtime "not supported" exception:

expression references method not belong mocked object: s => s.query<myentity>()

how can mock basic queries in moq/nhibernate?

query<t>() extension method, that's why can't mock it. although @roger answer way go, it's useful have specific tests. can start investigating query<t>() method - either reading nhibernate code, or using own tests, , set appropriate methods on isession.

warning: creating such setup make test fragile, , break, if internal implementation of nhibernate changes.

anyway, can start investigation with:

var mocksession = new mock<isession>(mockbehavior.strict); //this make mock throw on each invocation not setup var entities = mocksession.object.query<myentity>();

the second line above going throw exception , show actual property/method on isession query<t>() extension method tries access, can set accordingly. keep going way, , have setup session can use in test.

note: i'm not familiar nhibernate, have used above approach when had deal extension methods other libraries.


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