@Override
    public Set<Resource> populateResources(Set<Resource> resources,
                                           Request request, Predicate predicate) throws SystemException {

      for (Resource r : resources) {
        r.setProperty("foo/type1/name", "value1");
      }

      return resources;
    }
Test for empty constructor.  Public since instantiated via reflection.
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackDefinedPropertyProviderTest.java