@Test
public void testGetRendererList() {

    Plot plot = new MockPlot("MockPlot");
    MockSeries m1 = new MockSeries();
    MockSeries m2 = new MockSeries();
    MockSeries m3 = new MockSeries();
    plot.addSeries(m1, new MockFormatter1());
    plot.addSeries(m2, new MockFormatter1());
    plot.addSeries(m3, new MockFormatter1());
    plot.addSeries(m1, new MockFormatter2());
    plot.addSeries(m2, new MockFormatter2());
    plot.addSeries(m3, new MockFormatter2());
    List<SeriesRenderer> rList = plot.getRendererList();
    assertEquals(2, rList.size());
}