public void EventTriggerTest()
{
Assert.IsInstanceOfType(new EventTrigger(), typeof(EventTrigger));
var textBox = new TextBox();
var eventTrigger = new EventTrigger(nameof(textBox.TextChanged));
var action = new TestTriggerAction
{
IsEnabled = true
};
Assert.IsTrue(action.IsEnabled);
eventTrigger.Actions.Add(action);
eventTrigger.Attach(textBox);
textBox.RaiseEvent(new TextChangedEventArgs(TextBoxBase.TextChangedEvent, UndoAction.None));
Assert.IsTrue(action.Invoked);
Assert.ThrowsException <ArgumentException>(() => eventTrigger.EventName = "test");
// for code coverage
action.Attach(textBox);
eventTrigger.Actions.Remove(action);
eventTrigger.Actions.Add(action);
eventTrigger.Detach();
}
public void Test_FilterBehavior_ReplacedByNull()
{
// Arrange.
var items = new ObservableCollection <string>();
var viewSource = new CollectionViewSource
{
Source = items
};
var filter = CreateFilter();
var action = new CollectionViewSourceFilter();
action.Attach(viewSource);
action.Filter = filter;
var trigger = new EventTrigger {
EventName = "Filter"
};
trigger.Attach(viewSource);
trigger.Actions.Add(action);
// Act.
action.Filter = null;
items.Add("item"); // Trigger a view refresh.
// Assert.
Assert.False(filterInvocations[0]);
}
public void Test_FilterBehavior()
{
// Arrange.
var items = new ObservableCollection <string>();
var viewSource = new CollectionViewSource
{
Source = items
};
var filter = CreateFilter();
var action = new CollectionViewSourceFilter();
action.Attach(viewSource);
action.Filter = filter;
var trigger = new EventTrigger {
EventName = "Filter"
};
trigger.Attach(viewSource);
trigger.Actions.Add(action);
// Act: trigger a view refresh (Refresh() wasn't working).
items.Add("item");
// Assert.
Assert.True(filterInvocations[0]);
}
public void TestLoadedEvent()
{
Rectangle rectangle = new Rectangle();
EventTrigger eventTrigger1 = new EventTrigger("Loaded");
EventTrigger eventTrigger2 = new EventTrigger("MouseLeftButtonDown");
StubAction loadedAction = new StubAction();
StubAction mouseDownAction = new StubAction();
eventTrigger1.Actions.Add(loadedAction);
eventTrigger1.Attach(rectangle);
using (StubWindow window = new StubWindow(rectangle))
{
Assert.AreEqual(loadedAction.InvokeCount, 1, "Loaded action was invoked");
eventTrigger1.EventName = "GotMouseCapture";
rectangle.CaptureMouse();
Assert.AreEqual(loadedAction.InvokeCount, 2, "GotMouseCapture action was invoked");
rectangle.ReleaseMouseCapture();
eventTrigger1.EventName = "Loaded";
rectangle.CaptureMouse();
Assert.AreEqual(loadedAction.InvokeCount, 2, "GotMouseCapture action was not invoked");
rectangle.ReleaseMouseCapture();
}
eventTrigger1.Detach();
Assert.IsNull(((IAttachedObject)eventTrigger1).AssociatedObject, "Trigger was detached");
}
public void InvokeCommandActionTest()
{
var textBox = new TextBox();
var eventTrigger = new EventTrigger(nameof(textBox.TextChanged));
var action = new InvokeCommandAction();
bool invoked = false;
action.Command = new RelayCommand <bool>(b => invoked = b);
action.CommandParameter = true;
eventTrigger.Actions.Add(action);
eventTrigger.Attach(textBox);
textBox.RaiseEvent(new TextChangedEventArgs(TextBoxBase.TextChangedEvent, UndoAction.None));
Assert.IsTrue(invoked);
// for code coverage
action = new InvokeCommandAction("test1")
{
Command = null,
CommandName = "test"
};
action.CommandName = "test";
eventTrigger.Actions.Add(action);
Assert.AreEqual(action.CommandName, "test");
textBox.RaiseEvent(new TextChangedEventArgs(TextBoxBase.TextChangedEvent, UndoAction.None));
action.IsEnabled = false;
textBox.RaiseEvent(new TextChangedEventArgs(TextBoxBase.TextChangedEvent, UndoAction.None));
action.IsEnabled = true;
action.Detach();
textBox.RaiseEvent(new TextChangedEventArgs(TextBoxBase.TextChangedEvent, UndoAction.None));
}
private static StubAction AttachTriggerToObject(EventTrigger eventTrigger, SysWindows.DependencyObject host)
{
StubAction eventAction = new StubAction();
eventTrigger.Actions.Add(eventAction);
eventTrigger.Attach(host);
return(eventAction);
}