}

    public void test_load_simpleTerms() {
        List<RelatedContent> testData = new ArrayList<>();
        testData.add(createRelatedContent("java", "Java Programming", ""));
        testData.add(createRelatedContent("python", "Python Programming", ""));
        mockBhv.setTestData(testData);

        int count = relatedContentHelper.load();
        assertEquals(1, count); // One virtual host key (empty)

        mockBhv.setTestData(testData);

        int count = relatedQueryHelper.load();
        assertEquals(1, count); // One virtual host key (empty)

        String[] results = relatedQueryHelper.getRelatedQueries("java");
        assertEquals(3, results.length);
        assertEquals("programming", results[0]);

        }
        // assertEquals(0, result.size()); // Commented out due to variable scope
    }

    public void test_buildQuery_withVariousKeywords() {
        List<String> keywordList = Arrays.asList("java", "programming", "search", "");
        List<FilterFunctionBuilder> functionBuilders = new ArrayList<>();

        try {
            keyMatchHelper.buildQuery(keywordList, functionBuilders);
        } catch (Exception e) {

    double mean = values.next().doubleValue();
    while (values.hasNext()) {
      double value = values.next().doubleValue();
      count++;
      if (isFinite(value) && isFinite(mean)) {
        // Art of Computer Programming vol. 2, Knuth, 4.2.2, (15)
        mean += (value - mean) / count;
      } else {
        mean = calculateNewMeanNonFinite(mean, value);
      }
    }
    return mean;
  }

  /**