public async Task Should_SignUp(int ACountryId, int ACityId, string AEmailAddress) { // Arrange var LPayLoad = new UserCreateDto { FirstName = "Ester", LastName = "Exposito", NickName = "Ester", EmailAddress = AEmailAddress, Password = "******", CountryId = ACityId, CityId = ACountryId }; // Act await FAccounts.SignUp(LPayLoad, 12); // Verify action FMockDbContext .Verify(AMainDbContext => AMainDbContext .SaveChangesAsync(CancellationToken.None), Times.Once); }