public void testMultipleRoll() {
DiceRoller roller = CampaignClient.getInstance().getDiceRoller();
TestListener listener = new TestListener(6, 1);
roller.addPropertyChangeListener(listener);
roller.roll(new DiceSingle(6));
roller.roll(new DiceSingle(6));
roller.roll(new DiceSingle(6));
while (listener.getCallCount() < 3) {
sleep(5);