@Test
    void testRedundancyIncreaseValidationWithGroups() {
        // Changing redundancy from 1 to 2 is allowed when having 2 nodes in 2 groups versus 3 nodes in 1 group
        // (effective redundancy for the cluster is 2 in both cases)
        VespaModel previous = tester.deploy(null, getServices(1, 2, 2), zone, null, "contentClusterId.indexing").getFirst();
        tester.deploy(previous, getServices(2, 3, 1), zone, null, "contentClusterId.indexing");
    }
Emulate a self-hosted setup in only the sense that it does not set node resources on the provisioned hosts.
config-model/src/test/java/com/yahoo/vespa/model/application/validation/change/ResourcesReductionValidatorTest.java