@Test
public void manySeriesIncludingAnEmptySerie() throws IOException {
// the third serie should not have the second default color, but the third one !
DistributionAreaChart chart = new DistributionAreaChart();
BufferedImage image = chart.generateImage(new ChartParameters("v=0%3D5%3B1%3D22%3B2%3D2||2%3D7%3B4%3D15%3B9%3D4"));
assertChartSizeGreaterThan(image, 1000);
saveChart(image, "DistributionAreaChartTest/manySeriesIncludingAnEmptySerie.png");
}