public async Task AddAsyncShouldAddAnimalToDb()
{
var db = DbInfrastructure.GetDatabase();
var animalService = new AnimalService(db);
const string Name = "random name";
const int Age = 5;
const string Url = "https://news.nationalgeographic.com/content/dam/news/2018/05/17/you-can-train-your-cat/02-cat-training-NationalGeographic_1484324.jpg";
const string UserId = "Some user ID";
await animalService.AddAsync(Name, Age, Url, AnimalClass.Mammal, UserId);
var animal = await db.Animals.FirstOrDefaultAsync(a => a.Name == Name);
animal.AnimalClass.Should().Be(AnimalClass.Mammal);
animal.Age.Should().Be(Age);
animal.ImageUrl.Should().Be(Url);
animal.UserId.Should().Be(UserId);
}