From yesterday you can download package that will help you with mocking DbSet<TEntity> when you are using Moq. You can find sources and short instruction on GitHub portal or download compiled version from NuGet.

New package works in the same way as Moq.EntityFramework.Helpers.

Check it:

Moq.EntityFramework.Helpers NuGet package Default ThumbnailFluentValidation.Validators.UnitTestExtension version 1.1