public void DetectsFaultyPeers()
{
TestInterface(PatternInterface.Annotation);
TestInterface(PatternInterface.CustomNavigation);
TestInterface(PatternInterface.Drag);
TestInterface(PatternInterface.DropTarget);
TestInterface(PatternInterface.Grid);
TestInterface(PatternInterface.Invoke);
TestInterface(PatternInterface.MultipleView);
TestInterface(PatternInterface.RangeValue);
TestInterface(PatternInterface.Selection);
TestInterface(PatternInterface.SelectionItem);
void TestInterface(PatternInterface pattern)
{
var element = new Button();
var peer = new PatternInterfacePeer(element, AutomationControlType.Custom);
peer.ImplementedInterfaces.Add(pattern);
var rule = new PatternInterfaceImplementedRule();
Assert.IsFalse(rule.IsValid(element, peer));
}
}
public void VerifyStandardControlsPass()
{
TestElement(new Button());
TestElement(new Grid());
TestElement(new TextBlock());
TestElement(new TextBox());
TestElement(new MenuBar());
TestElement(new ListView()
{
ItemsSource = Enumerable.Range(0, 10), SelectionMode = ListViewSelectionMode.Multiple
});
TestElement(new ListViewItem());
TestElement(new GridView()
{
ItemsSource = Enumerable.Range(0, 10), SelectionMode = ListViewSelectionMode.Multiple
});
TestElement(new GridViewItem());
TestElement(new ScrollViewer());
TestElement(new NavigationView());
TestElement(new TextBox());
TestElement(new RichEditBox());
TestElement(new ToggleSplitButton());
TestElement(new SplitButton());
TestElement(new ProgressBar());
TestElement(new ScrollBar());
void TestElement(FrameworkElement element)
{
App.Content = element;
var peer = FrameworkElementAutomationPeer.CreatePeerForElement(element);
var rule = new PatternInterfaceImplementedRule();
// The rule is not great in release builds as reflection becomes an issue.
// Since the package is not intended to be running in release mode, this will almost certainly not be fixed.
// However, the tests still might be run with .NET native, so to prevent unnecessary failures,
// disable asserting when not in debug mode.
#if DEBUG
Assert.IsTrue(rule.IsValid(element, peer), element.GetType() + " failed.");
#endif
}
}
public void VerifyPerformance()
{
Stopwatch sw = new Stopwatch();
sw.Start();
var element = new Button();
App.Content = element;
var buttonPeer = FrameworkElementAutomationPeer.CreatePeerForElement(element);
var rule = new PatternInterfaceImplementedRule();
Assert.IsNotNull(buttonPeer);
for (int i = 0; i < 100000; i++)
{
Assert.IsTrue(rule.IsValid(element, buttonPeer));
}
sw.Stop();
// Verify that scanning 100000 items doesn't take too long.
Assert.IsTrue(sw.ElapsedMilliseconds < 1000);
}