public static void TestPngExport() { // the PlotView is a WPF control that's created in the .xaml code OxyPlot.Wpf.PlotView examplePlotView = new OxyPlot.Wpf.PlotView(); // create the plot Plot plot = new ScatterPlot(examplePlotView, new List <Datum> { new Datum(0, 1), new Datum(2, 3) }); string exportPath = Path.Combine(TestContext.CurrentContext.TestDirectory, "testPngExport.png"); plot.ExportToPng(exportPath); Assert.That(File.Exists(exportPath)); File.Delete(exportPath); }