TrackingCartesianChartModel extends LineChartModel { public Date getMinDate() { return minDate; }  Date getMinDate(); long getMin(); long getMax(); Date getMaxDate(); void addDate(Date d);  }
@Test public void testGetMinDate_1() throws Exception { TrackingCartesianChartModel fixture = new TrackingCartesianChartModel(); fixture.addSeries(new ChartSeries()); Date result = fixture.getMinDate(); }