### Question:
PlayerGames implements Iterable<PlayerGame>, Tickable { public void remove(Player player) { remove(player, true); } PlayerGames(); void onAdd(Consumer<PlayerGame> consumer); void onRemove(Consumer<PlayerGame> consumer); void init(ReadWriteLock lock); void removeCurrent(Player player); void remove(Player player); PlayerGame get(String id); PlayerGame get(GamePlayer player); PlayerGame add(Player player, String roomName, PlayerSave save); boolean isEmpty(); @Override Iterator<PlayerGame> iterator(); List<Player> players(); int size(); void clear(); List<PlayerGame> getAll(Predicate<PlayerGame> predicate); static Predicate<PlayerGame> withType(String gameType); static Predicate<PlayerGame> withAll(); static Predicate<PlayerGame> withRoom(String room); Predicate<PlayerGame> withActive(); List<GameType> getGameTypes(); @Override void tick(); void reloadCurrent(PlayerGame playerGame); void reload(Game game, String roomName, JSONObject save); void reloadAll(boolean shuffle); void reloadAll(boolean shuffle, Predicate<PlayerGame> predicate); List<Player> getPlayers(String gameName); void changeLevel(String playerId, int level); void setLevel(String playerId, JSONObject save); void changeRoom(String playerId, String roomName); PlayerGame get(int index); List<PlayerGame> all(); List<PlayerGame> active(); Stream<PlayerGame> stream(); Multimap<String, Room> rooms(); List<String> getRooms(boolean isAll); static final boolean ALL; static final boolean ACTIVE; }### Answer:
@Test public void testRemove() { Player player = createPlayer(); assertEquals(false, playerGames.isEmpty()); assertEquals(1, playerGames.size()); PlayerGame playerGame = playerGames.get(player.getId()); GameField field = playerGame.getGame().getField(); playerGames.onRemove(pg -> removed = pg); playerGames.remove(player); assertEquals(true, playerGames.isEmpty()); assertEquals(0, playerGames.size()); verifyRemove(playerGame, field); assertEquals(removed, playerGame); }