public int currentControllerId() {
        return this.currentControllerId.get();
    }
@Test
    public void testInitialValueOfCurrentControllerId() {
        try (FakeMetadataLoaderMetrics fakeMetrics = new FakeMetadataLoaderMetrics(Optional.empty())) {
            assertEquals(-1, fakeMetrics.metrics.currentControllerId());
        }
    }