public async Task TestForValidAddContent() { //Arrange List <Content> contentlist = new List <Content>(); Content contentOne = new Content() { Id = random.Next(15, 10000), Image = "rose.png", Video = "Rose" }; Content contentTwo = new Content() { Id = random.Next(15, 10000), Image = "Jasmine.png", Video = "Jasmine" }; contentlist.Add(contentOne); contentlist.Add(contentTwo); User user = new User { Id = 11, FirstName = "John", LastName = "HS", UserName = "******", Email = "*****@*****.**", Password = "******", ProfilePicture = "https://unsplash.com/photos/p7mo8-CG5Gs" }; //Action var isAdded = await _services.AddContent(contentlist, user.Id); //Assert Assert.True(isAdded); }