public void testShouldRunWithoutAssertionException() throws IOException {
    int numDocs =
        randomBoolean()
            ? atLeast(1000)
            : atLeast(128 * 8 * 8 * 3); // make sure some terms have skip data
    int numMatchDoc = randomIntBetween(200, 500);
    int numHits = atMost(100);
    int boost1 = Math.max(1, random().nextInt(5));
    int boost2 = Math.max(1, random().nextInt(5));

    Directory dir = newDirectory();
    Similarity similarity = randomCompatibleSimilarity();

    IndexWriterConfig iwc = new IndexWriterConfig();
    iwc.setSimilarity(similarity);
    RandomIndexWriter w = new RandomIndexWriter(random(), dir, iwc);

    // adding potentially matching doc
    for (int i = 0; i < numMatchDoc; i++) {
      Document doc = new Document();

      int freqA = random().nextInt(20) + 1;
      if (randomBoolean()) {
        for (int j = 0; j < freqA; j++) {
          doc.add(new TextField("a", "foo", Store.NO));
        }
      }

      freqA = random().nextInt(20) + 1;
      if (randomBoolean()) {
        for (int j = 0; j < freqA; j++) {
          doc.add(new TextField("a", "foo" + j, Store.NO));
        }
      }

      freqA = random().nextInt(20) + 1;
      if (randomBoolean()) {
        for (int j = 0; j < freqA; j++) {
          doc.add(new TextField("a", "zoo", Store.NO));
        }
      }

      int freqB = random().nextInt(20) + 1;
      if (randomBoolean()) {
        for (int j = 0; j < freqB; j++) {
          doc.add(new TextField("b", "zoo", Store.NO));
        }
      }

      freqB = random().nextInt(20) + 1;
      if (randomBoolean()) {
        for (int j = 0; j < freqB; j++) {
          doc.add(new TextField("b", "zoo" + j, Store.NO));
        }
      }

      int freqC = random().nextInt(20) + 1;
      for (int j = 0; j < freqC; j++) {
        doc.add(new TextField("c", "bla" + j, Store.NO));
      }
      w.addDocument(doc);
    }

    IndexReader reader = w.getReader();
    IndexSearcher searcher = newSearcher(reader);
    searcher.setSimilarity(similarity);

    CombinedFieldQuery query =
        new CombinedFieldQuery.Builder()
            .addField("a", (float) boost1)
            .addField("b", (float) boost2)
            .addTerm(new BytesRef("foo"))
            .addTerm(new BytesRef("zoo"))
            .build();

    TopScoreDocCollector completeCollector =
        TopScoreDocCollector.create(numHits, null, Integer.MAX_VALUE); 
    searcher.search(query, completeCollector);

    reader.close();
    w.close();
    dir.close();
  }