Mocking or faking DbEntityEntry or creating a new DbEntityEntry

Question

Following on the heels of my other question about mocking DbContext.Set I\'ve got another question about mocking EF Code First.

I now have a method for my update tha

Answer 1

Found this question when I needed to unit test with Moq, no need for your own interface. I wanted to set specific fields to not modified but the method SetModified can be used with object as well.

DbContext:

public class AppDbContext : DbContext
{   
    ...
    public virtual void SetModified(GuidEntityBase entity)
    {
        Entry(entity).State = EntityState.Modified;
        Entry(entity).Property(x => x.CreatedDate).IsModified = false;
        Entry(entity).Property(x => x.CreatedBy).IsModified = false;
    }
    ...
}

Test:

var mockContext = new Mock();
mockContext.Setup(c => c.MyDbSet).Returns(mockMyDbSet.Object);
mockContext.Setup(c => c.SetModified(It.IsAny()));