private void letPolicyCacheStateWithNoAvailableDistributors() {
        setClusterNodes(new int[]{ 0 });
        String clusterState = " bits:16 storage:1"; // No distributors online
        var target = select();
        // Update to cluster state with no distributors online
        replyWrongDistribution(target, "foo", null, clusterState);
    }
To be independent of changes in distribution algorithm, we programmatically calculate preferred order of
bucket 1, which we will be using in the tests. To avoid doing this ahead of every test, we still hardcode the
values, though only one place, and have this test to verify they are correct, and make it easy to update the values.
documentapi/src/test/java/com/yahoo/documentapi/messagebus/protocol/test/storagepolicy/BasicTests.java