public void testColumnchart() {
HSSFSheet sheet1 = (HSSFSheet) _book.getSheet("Sheet1");
List<ZssChartX> chartXes = new DrawingManagerImpl(sheet1).getChartXs();
assertEquals(1, chartXes.size());
HSSFChartX chartX = (HSSFChartX) chartXes.get(0);
HSSFChart chart = (HSSFChart) chartX.getChartInfo();
assertNull(chart.getChartTitle());
System.out.println("getgetChartWidth():"+chart.getChartWidth());
HSSFSeries[] series = chart.getSeries();
assertEquals(1, series.length);
for(int j = 0; j < series.length; ++j) {
HSSFSeries ser = series[j];
assertEquals(3, ser.getNumValues());
assertEquals("2003", ser.getSeriesTitle());