private void prepareAndActivate(ApplicationId application, int nodeCount, boolean exclusive, NodeResources resources, ProvisioningTester tester) {
        Set<HostSpec> hosts = new HashSet<>(tester.prepare(application,
                                                           ClusterSpec.request(ClusterSpec.Type.container, ClusterSpec.Id.from("my-container")).vespaVersion("6.39").exclusive(exclusive).build(),
                                                           Capacity.from(new ClusterResources(nodeCount, 1, resources), false, true)));
        tester.activate(application, hosts);
    }
Non-exclusive app first, then an exclusive: Should give the same result as above
node-repository/src/test/java/com/yahoo/vespa/hosted/provision/provisioning/VirtualNodeProvisioningTest.java