public async Task DeletePhotoShouldWorkCorrectly()
{
var photos = new List <Photo>();
var mockPhoto = new Mock <IDeletableEntityRepository <Photo> >();
mockPhoto.Setup(x => x.All()).Returns(photos.AsQueryable());
mockPhoto.Setup(x => x.AddAsync(It.IsAny <Photo>())).Callback((Photo ph) => photos.Add(ph));
var service = new AdminsService(null, null, mockPhoto.Object, null, null);
var photo = new Photo
{
Id = "123",
};
photos.Add(photo);
await service.DeletePhoto("123");
Assert.Equal(true, photo.IsDeleted);
}