void assertComponentConfigured(ApplicationContainerCluster cluster, String componentId) {
        Component<?, ?> component = cluster.getComponentsMap().get(ComponentId.fromString(componentId));
        assertNotNull(component);
    }
Utility functions for testing the ContainerModelBuilder. Note that XML validation will
not be done when using this class

@author gjoranv
config-model/src/test/java/com/yahoo/vespa/model/container/xml/ContainerModelBuilderTestBase.java