### Question:
WikiTreeNode extends AbstractEntityTreeNode { @Override public String getParent(String nodeId) { return FARM_NODE_ID; }  @Override List<String> getChildren(String nodeId, int offset, int limit); @Override int getChildCount(String nodeId); @Override String getParent(String nodeId);  }### Answer:
@Test public void getParent() { assertEquals("farm:*", this.wikiTreeNode.getParent("wiki:foo")); }