}

  public void testImmediateDispatcher() {
    dispatcher = Dispatcher.immediate();
    dispatcher.dispatch(1, integerSubscribers.iterator());

    assertThat(dispatchedSubscribers)
        .containsExactly(
            i1, s1, s2, // Each integer subscriber immediately dispatches to 2 string subscribers.
            i2, s1, s2, i3, s1, s2)
        .inOrder();
  }

  }

  public void testImmediateDispatcher() {
    dispatcher = Dispatcher.immediate();
    dispatcher.dispatch(1, integerSubscribers.iterator());

    assertThat(dispatchedSubscribers)
        .containsExactly(
            i1, s1, s2, // Each integer subscriber immediately dispatches to 2 string subscribers.
            i2, s1, s2, i3, s1, s2)
        .inOrder();
  }