@Test
    public void test_load_virtualHosts() {
        List<RelatedQuery> testData = new ArrayList<>();
        testData.add(createRelatedQuery("term1", new String[] { "query1" }, "host1"));
        testData.add(createRelatedQuery("term1", new String[] { "query2" }, "host2"));
        testData.add(createRelatedQuery("term2", new String[] { "query3" }, ""));
        mockBhv.setTestData(testData);

        int count = relatedQueryHelper.load();