Moqing Entity Framework 6 .Include() using DbSet<>

Question

I\'d like to give the background to this question. Skip if you like. For quite a while I\'ve paid close attention to the on going debates on stackoverflow and elsewhere rega

Answer 1

For anyone who stumbles upon this issue with interest on how to solve the .Include("Foo") problem with NSubstitute and Entity Framework 6+, I was able to bypass my Include calls in the following way:

var data = new List()
{
    /* Stub data */
}.AsQueryable();

var mockSet = Substitute.For, IQueryable>();
((IQueryable)mockSet).Provider.Returns(data.Provider);
((IQueryable)mockSet).Expression.Returns(data.Expression);
((IQueryable)mockSet).ElementType.Returns(data.ElementType);
((IQueryable)mockSet).GetEnumerator().Returns(data.GetEnumerator());

// The following line bypasses the Include call.
mockSet.Include(Arg.Any()).Returns(mockSet);