public async Task DeleteUserAsync()
{
var user = CreateNewUser();
var savedUser = await _repository.SaveUserAsync(user);
Assert.IsNotNull(savedUser);
Assert.IsTrue(savedUser.Id > 14);
Assert.AreEqual(savedUser.Login, user.Login);
var userId = savedUser.Id;
var isSuccess = await _repository.DeleteUserAsync(userId);
user = await _repository.GetUserByIdAsync(userId);
Assert.IsNull(user);
}
