Moq.EntityFrameworkCore

This library helps you mocking EntityFramework contexts. Now you will be able to test methods that are using DbSet<TEntity> or DbQuery<TEntity> from DbContext in an effective way.

Installation - NuGet Packages

Install-Package Moq.EntityFrameworkCore

Usage

For example we can assume that we have the following production code:

public class UsersContext : DbContext { public virtual DbSet<User> Users { get; set; } }

To mock Users and Roles you only need to implement the following 3 steps:

1. Create DbContext mock:

var userContextMock = new Mock<UsersContext>();

2. Generate your entities:

IList<User> users = ...;

3. Setup DbSet or DbQuery property:

userContextMock.Setup(x => x.Users).ReturnsDbSet(users);

or

userContextMock.SetupGet(x => x.Users).ReturnsDbSet(users);

or

userContextMock.SetupSequence(x => x.Set<User>()) .ReturnsDbSet(new List<User>()) .ReturnsDbSet(users);