public void TestPieSeries4()
{
var chart = new PieChart();
chart.RaiseEvent(new RoutedEventArgs(FrameworkElement.LoadedEvent));
var series = new PieSeries();
series.Slices.Add(new PieSlice
{
DisplayedValue = "Display me"
});
chart.Series = series;
PieChartValueItem item = chart.Children.OfType <PieChartValueItem>().FirstOrDefault();
item.Should().NotBeNull();
item.Content.Should().Be("Display me", "because the item should present the DisplayValue in a content presenter");
}
public void TestPieSeries6()
{
var template = new DataTemplate();
var chart = new PieChart {
ValueTemplate = template
};
chart.RaiseEvent(new RoutedEventArgs(FrameworkElement.LoadedEvent));
var series = new PieSeries();
series.Slices.Add(new PieSlice());
chart.Series = series;
PieChartValueItem item = chart.Children.OfType <PieChartValueItem>().FirstOrDefault();
item.Should().NotBeNull();
series.Slices = null;
chart.Children.Should().BeEmpty();
}
public void TestPieSeries5()
{
var template = new DataTemplate();
var chart = new PieChart {
ValueTemplate = template
};
chart.RaiseEvent(new RoutedEventArgs(FrameworkElement.LoadedEvent));
var series = new PieSeries();
series.Slices.Add(new PieSlice());
chart.Series = series;
PieChartValueItem item = chart.Children.OfType <PieChartValueItem>().FirstOrDefault();
item.Should().NotBeNull();
item.ContentTemplate.Should()
.BeSameAs(template,
"because the chart is supposed to forward the ValueTemplate to the ContentPresenter that presents DisplayValue");
}
public void TestPieSeries7()
{
var template = new DataTemplate();
var chart = new PieChart {
ValueTemplate = template
};
chart.RaiseEvent(new RoutedEventArgs(FrameworkElement.LoadedEvent));
var series = new PieSeries();
chart.Series = series;
chart.Children.Should().BeEmpty();
series.Slices = new List <IPieSlice> {
new PieSlice()
};
PieChartValueItem item = chart.Children.OfType <PieChartValueItem>().FirstOrDefault();
item.Should().NotBeNull("because we've exchanched the empty list of slices with one that offers one slice");
}
