public void ReturnTrueIfPlayerIsEitherSenderOrReceiver()
        {
            var invite = new InviteDataModel(SenderId, ReceiverId, PartyId);

            Assert.True(invite.PlayerInvolved(SenderId));
            Assert.True(invite.PlayerInvolved(ReceiverId));
        }
        public void ReturnFalseIfIsNeitherSenderNorReceiver()
        {
            var invite = new InviteDataModel(SenderId, ReceiverId, PartyId);

            Assert.False(invite.PlayerInvolved("SomeoneElse"));
        }