### Question:
NodeTermScorer extends NodePositionScorer { @Override public boolean nextNode() throws IOException { return docsEnum.nextNode(); } protected  NodeTermScorer(final Weight weight,
                           final DocsNodesAndPositionsEnum docsEnum,
                           final Similarity.ExactSimScorer docScorer); @Override int doc(); @Override float freqInNode(); @Override int pos(); @Override IntsRef node(); @Override boolean nextCandidateDocument(); @Override boolean nextNode(); @Override boolean nextPosition(); @Override float scoreInNode(); @Override boolean skipToCandidate(final int target); @Override String toString();  }### Answer:
@Test public void testNextNodeFail() throws Exception { this.addDocument("<http: final NodeScorer scorer = this.getScorer(ntq("renaud")); assertFalse(scorer.nextNode()); }