/**
  * @param space space name.
  * @return a reference to a space in the main wiki.
  */
 protected SpaceReference getXSpace(String space) {
   return new SpaceReference(space, testDefinition.getMainWiki().getWikiReference());
 }
 /**
  * @param name document name.
  * @param space space name.
  * @return a reference to a document in a space of the main wiki.
  */
 protected DocumentReference getXDoc(String name, String space) {
   return new DocumentReference(
       name, new SpaceReference(space, testDefinition.getMainWiki().getWikiReference()));
 }
 /** @return a reference to the main wiki. */
 protected WikiReference getXWiki() {
   return testDefinition.getMainWiki().getWikiReference();
 }