public static Node mockComponentNodeWithId(Class<?> clazz, String componentId, String configId /*= ""*/) {
        return new ComponentNode(ComponentId.fromString(componentId), configId, clazz, null);
    }
@author gjoranv
@author Tony Vaagenes
@author ollivir
container-core/src/test/java/com/yahoo/container/di/componentgraph/core/ComponentGraphTest.java