@Test
public void testGetOwnedSessionIds() {

  assertThat(repository.getOwnedSessionIds(), not(hasItem("test")));
  SessionData sessionData = new SessionData("test", 1000, 10);
  repository.storeSessionData(sessionData);
  assertThat(repository.getOwnedSessionIds(), hasItem("test"));
  assertThat(repository.getOwnedSessionIds(), not(hasItem("test2")));
  repository.remove(sessionData);
  assertThat(repository.getOwnedSessionIds(), not(hasItem("test")));
}