IDbAsyncEnumerable not implemented

Question

I am trying to make a FakeDbContext with a FakeDbSet for unit testing.

But I get the following error (see below). I am extending DbSet so normally IDbAsyncEnumerable

Answer 1

To solved my IDbAsyncEnumerable issue:

1. Changed my project's target from .NetFramework 4.0 to .NetFramework 4.5

2. Reinstalled EntityFramework 6.1.3 Nuget package.

3. At this point, my Visual Studio's IDE Show Potencial Fixes advisor, allowed me to reference System.Data.Entity.Infrastructure namespace

using System.Data.Entity.Infrastructure;