public Duration forceTrackClosureAge() {
        return this.forcedTrackClosureAge;
    }
@Test
    public void trackClosureAgeReflectsConstructor() {

        TrackMaker trackMaker = new TrackMaker(
            Duration.ofSeconds(30),
            Duration.ofSeconds(1234),
            new TestConsumer()
        );

        assertThat(trackMaker.forceTrackClosureAge(), is(Duration.ofSeconds(1234)));
    }