@Test
    public void testSingleConfigServerCanSuspend() throws HostStateChangeDeniedException {
        for (var status : EnumSet.of(ServiceStatus.UP, ServiceStatus.DOWN, ServiceStatus.UNKNOWN)) {
            var clusterApi = makeConfigClusterApi(1, status);
            var policy = new HostedVespaClusterPolicy(flagSource, zone);
            try {
                policy.verifyGroupGoingDownIsFine(clusterApi);
            } catch (HostStateChangeDeniedException e) {
                fail("Expected suspension to succeed");
            }
        }
    }
Make a ClusterApiImpl for the cfg1 config server, with cfg3 missing from the cluster (not provisioned).
orchestrator/src/test/java/com/yahoo/vespa/orchestrator/model/ClusterApiImplTest.java