Mocking DbSet

Hello there,
I have a question as to how to best mock a DbSet so that it can be acted upon with Linq expressions?

//Arrange
var _entityDbSet = Isolate.Fake.Instance<DbSet<SomeEntityClass>>();

//Arrange?
//_entityDbSet = Isolate.Fake.Instance<DbSet<SomeEntityClass>>(Members.ReturnRecursiveFakes);

//Arrange?
Isolate.WhenCalled(() => _entityDbSet).WillReturnCollectionValuesOf(new List<SomeEntityClass> { new SomeEntityClass() });

//Act
var items = _entityDbSet.Where(e => true);

Either of the above setups causes .Where to throw an exception, in Expression.ValidateOneArgument.
In the method, the mocked expression type (null) is compared to the entity list element type (SomeEntityClass) and
are found to be unequal.


Please explain how to go about mocking dbset.


Best regards,
Christian L