- assertRankingEqualsRankingFromLastMessage(PETER, function.apply(PETER));
- assertRankingEqualsRankingFromLastMessage(KLAUS, function.apply(KLAUS));
+ assertRankingEqualsRankingFromLastMessage(PETER.getUsername(), function.apply(PETER.getUsername()));
+ assertRankingEqualsRankingFromLastMessage(KLAUS.getUsername(), function.apply(KLAUS.getUsername()));