@Test
  @Ignore
  public void test_that_XYDataCollection_returns_correct_json() throws JSONException {
    XYDataSetCollection xyCollection = new XYDataSetCollection();
    XYDataList xyList = new XYDataList();
    xyList.setLabel("Set1");
    xyList.addDataPoint(new XYDataPoint(1, 1));
    xyList.addDataPoint(new XYDataPoint(2, 2));
    xyList.addDataPoint(new XYDataPoint(3, 3));
    xyList.addDataPoint(new XYDataPoint(5, 5));
    xyCollection.addDataList(xyList);

    StringBuilder expected = new StringBuilder();
    expected.append(
        "{\"chart\": [ {\"label\": \"Set1\", \"data\": [[1,1], [2,2], [3,3], [5,5]]}],\"instrumentationNode\":\"chartId\"}");
    String jsonString =
        BuildJsonObjectsUtil.generateChartData("chartId", "something", xyCollection, 0l);
    assertEquals(expected.toString(), jsonString);
  }