@Test
    void testDistributionBitCountConfigIncrease() throws Exception {
        var options = setUpSystem();
        var builder = FleetControllerOptions.Builder.copy(options);
        builder.setDistributionBits(20);
        fleetController().updateOptions(builder.build());
        ClusterState currentState = waitForState("version:\\d+ bits:20 distributor:10 storage:10");

        int version = currentState.getVersion();
        builder.setDistributionBits(23);
        fleetController().updateOptions(builder.build());
        assertEquals(version, currentState.getVersion());
    }
Test that then altering config to increased bit count, that a new system state is sent out if the least split storagenode use more bits.
Test that then altering config to increased bit count, that a new system state is not sent out (and not altered) if a storagenode needs it to be no further split.
clustercontroller-core/src/test/java/com/yahoo/vespa/clustercontroller/core/DistributionBitCountTest.java