@Test
void killsAreAdded2() {

    Session session = new Session(null, serverUUID, System.currentTimeMillis(), "", "");
    session.playerKilled(new PlayerKill(TestConstants.PLAYER_TWO_UUID, "Weapon", System.currentTimeMillis()));
    Optional<List<PlayerKill>> afterOptional = session.getValue(SessionKeys.PLAYER_KILLS);
    assertTrue(afterOptional.isPresent());
    List<PlayerKill> after = afterOptional.get();
    assertFalse(after.isEmpty());
}