@Test
public void testMinimumTopicNamesValidUnconstrained() throws IOException, SchemaSyntaxException{

  OSLSchema schema = (OSLSchema) readSchema("in", "basename-unc.xml");
  TopicIF type = makeType("#something");
  TopicIF theme = makeType("#something-else");
  TopicIF instance = builder.makeTopic();
  instance.addType(type);
  builder.makeTopicName(instance, "");
  TopicNameIF basename = builder.makeTopicName(instance, "");
  basename.addTheme(theme);
  validate(schema);
}