public void GivenChartControlWithData_WhenChartDataRemoved_ThenCorrespondingSeriesRemovedAndOtherSeriesReused()
{
// Given
using (var chartControl = new ChartControl())
{
LinearPlotView linearPlotView = GetLinearPlotView(chartControl);
var chartPointData = new ChartPointData("Points");
var chartLineData = new ChartLineData("Lines");
var chartAreaData = new ChartAreaData("Areas");
var chartDataCollection = new ChartDataCollection("Root collection");
var nestedChartDataCollection1 = new ChartDataCollection("Nested collection 1");
var nestedChartDataCollection2 = new ChartDataCollection("Nested collection 2");
chartDataCollection.Add(chartPointData);
chartDataCollection.Add(nestedChartDataCollection1);
nestedChartDataCollection1.Add(chartLineData);
nestedChartDataCollection1.Add(nestedChartDataCollection2);
nestedChartDataCollection2.Add(chartAreaData);
chartControl.Data = chartDataCollection;
List <Series> seriesBeforeUpdate = linearPlotView.Model.Series.ToList();
// Precondition
Assert.AreEqual(3, seriesBeforeUpdate.Count);
// When
nestedChartDataCollection1.Remove(chartLineData);
nestedChartDataCollection1.NotifyObservers();
// Then
ElementCollection <Series> series = linearPlotView.Model.Series;
Assert.AreEqual(2, series.Count);
Assert.AreEqual("Points", series[0].Title);
Assert.AreEqual("Areas", series[1].Title);
Assert.AreEqual(0, series.Except(seriesBeforeUpdate).Count());
}
}
