public async Task SortTest02() { VisualTreeObject actual = null; using (var hostScript = new VariableRHostScript()) { using (var script = new ControlTestScript(typeof(VariableGridHost))) { await PrepareControl(hostScript, script, "grid.test <- mtcars"); await UIThreadHelper.Instance.InvokeAsync(async() => { var grid = await VisualTreeExtensions.FindChildAsync <VisualGrid>(script.Control); var header = await VisualTreeExtensions.FindChildAsync <HeaderTextVisual>(script.Control); // mpg header = await VisualTreeExtensions.FindNextSiblingAsync <HeaderTextVisual>(header); // cyl header.Should().NotBeNull(); grid.ToggleSort(header, false); DoIdle(200); header = await VisualTreeExtensions.FindNextSiblingAsync <HeaderTextVisual>(header); // disp header = await VisualTreeExtensions.FindNextSiblingAsync <HeaderTextVisual>(header); // hp grid.ToggleSort(header, add: true); grid.ToggleSort(header, add: true); DoIdle(200); }); actual = VisualTreeObject.Create(script.Control); ViewTreeDump.CompareVisualTrees(_files, actual, "VariableGridSorted02"); } } }