public async Task ItCreatesANewGamingGroupIfNotConsumingAnInvitationToAnExistingGamingGroup()
{
newUser = new NewUser()
{
UserName = "******",
EmailAddress = "the email",
GamingGroupInvitationId = null
};
await userRegisterer.RegisterUser(newUser);
firstTimeUserAuthenticatorMock.AssertWasCalled(mock => mock.CreateGamingGroupAndSendEmailConfirmation(
Arg <ApplicationUser> .Matches(user => user.UserName == newUser.UserName &&
user.Email == newUser.EmailAddress),
Arg <TransactionSource> .Is.Anything));
}
