public void ItThrowsAnEntityDoesNotExistExceptionIfThePassedInUserDoesntExistYet()
{
BuildDataContextMock(false, true, true);
var expectedException = new EntityDoesNotExistException(typeof(ApplicationUser), currentUser.Id);
Exception actualException = Assert.Throws<EntityDoesNotExistException>(
() => gamingGroupInviteConsumer.AddNewUserToGamingGroup(currentUser.Id, invitationId));
Assert.That(expectedException.Message, Is.EqualTo(actualException.Message));
}