public void GetAllEmpliyeeFromDb() { // Arange var userService = new UsersService(db); var firstEmployee = new User { Id = "0", FullName = "TeamLead", Position = PositionType.TeamLeader }; var secondEmployee = new User { Id = "1", FullName = "ProductionCordinator", Position = PositionType.ProductionCordinator }; var thirdEmployee = new User { Id = "2", FullName = "GeneralManager", Position = PositionType.GeneralManager }; db.User.AddRange(firstEmployee, secondEmployee, thirdEmployee); db.SaveChanges(); // Act var result = userService.AllEmployee(); // Assert var expectedCount = 3; Assert.Equal(expectedCount, result.Count()); }