public async Task GetCoffees_Returns_ListOfCoffeeModels()
        {
            var coffeesReturned = await coffeeService.GetCoffees();

            Assert.IsNotNull(coffeesReturned);
            Assert.IsTrue(coffeesReturned.Any());
            Assert.IsInstanceOf(typeof(List <CoffeeModel>), coffeesReturned);
            Assert.IsTrue(coffeesReturned.Any(coffeeModel => coffeeModel.Id != Guid.Empty && !string.IsNullOrEmpty(coffeeModel.Name)));
        }