public void InvokingCommandCallsMethod()
{
var cmd = new EventAction(this.subject, null, this.eventInfo.EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
cmd.GetDelegate().DynamicInvoke(null, null);
Assert.True(this.target.DoSomethingCalled);
}
public void InvokingCommandDoesNothingIfActionIsNonExistent()
{
var cmd = new EventAction(this.subject, null, this.eventInfo.EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
View.SetActionTarget(this.subject, new Target2());
cmd.GetDelegate().DynamicInvoke(null, null);
}
public void UsesExplicitTarget()
{
var cmd = new EventAction(this.target, this.eventInfo.EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
cmd.GetDelegate().DynamicInvoke(null, null);
Assert.True(this.target.DoSomethingCalled);
}
public void ExecuteThrowsIfActionTargetIsDefault()
{
View.SetActionTarget(this.subject, View.InitialActionTarget);
var cmd = new EventAction(this.subject, null, this.eventInfo.EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
var e = Assert.Throws <TargetInvocationException>(() => cmd.GetDelegate().DynamicInvoke(null, null));
Assert.IsInstanceOf <ActionNotSetException>(e.InnerException);
}
public void PropagatesActionException()
{
var cmd = new EventAction(this.subject, null, this.eventInfo.EventHandlerType, "DoSomethingUnsuccessfully", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
var e = Assert.Throws <TargetInvocationException>(() => cmd.GetDelegate().DynamicInvoke(null, null));
Assert.IsInstanceOf <InvalidOperationException>(e.InnerException);
Assert.AreEqual("foo", e.InnerException.Message);
}
public void InvokingCommandCallsMethodWithDependencyChangedEventArgs()
{
var cmd = new EventAction(this.subject, null, this.dependencyChangedEventInfo.EventHandlerType, "DoSomethingWithDependencyChangedEventArgs", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
var arg = new DependencyPropertyChangedEventArgs();
cmd.GetDelegate().DynamicInvoke(null, arg);
Assert.AreEqual(arg, this.target.DependencyChangedEventArgs);
}
public void ThrowsWhenClickedIfActionNonExistentBehaviourIsThrowAndActionIsNonExistent()
{
var cmd = new EventAction(this.subject, null, this.eventInfo.EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Throw);
Assert.DoesNotThrow(() => View.SetActionTarget(this.subject, new Target2()));
var e = Assert.Throws <TargetInvocationException>(() => cmd.GetDelegate().DynamicInvoke(null, new RoutedEventArgs()));
Assert.IsInstanceOf <ActionNotFoundException>(e.InnerException);
}
public void SupportsStaticTargets()
{
var cmd = new EventAction(this.subject, null, this.eventInfo.EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
View.SetActionTarget(this.subject, typeof(StaticTarget));
cmd.GetDelegate().DynamicInvoke(null, null);
Assert.True(StaticTarget.DidSomething);
}
public void InvokingCommandCallsMethodWithSenderAndEventArgs()
{
var cmd = new EventAction(this.subject, null, this.eventInfo.EventHandlerType, "DoSomethingWithObjectAndEventArgs", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
var sender = new object();
var arg = new RoutedEventArgs();
cmd.GetDelegate().DynamicInvoke(sender, arg);
Assert.AreEqual(sender, this.target.Sender);
Assert.AreEqual(arg, this.target.EventArgs);
}
public void OperatesAfterCollection()
{
var view = new DependencyObject();
var cmd = new EventAction(view, null, this.eventInfo.EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
GC.Collect();
View.SetActionTarget(view, this.target);
cmd.GetDelegate().DynamicInvoke(null, null);
Assert.IsTrue(this.target.DoSomethingCalled);
}
public void UsesBackupSubjectIfActionTargetNotAvailable()
{
var view = new DependencyObject();
var backupView = new DependencyObject();
var cmd = new EventAction(view, backupView, this.eventInfo.EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
View.SetActionTarget(backupView, this.target);
view.SetValue(FrameworkElement.DataContextProperty, this.target);
cmd.GetDelegate().DynamicInvoke(null, null);
Assert.IsTrue(this.target.DoSomethingCalled);
}
public void BadEventHandlerSignatureThrows()
{
var cmd = new EventAction(this.subject, null, typeof(Subject).GetEvent("BadEventHandler").EventHandlerType, "DoSomething", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
Assert.Throws <ActionEventSignatureInvalidException>(() => cmd.GetDelegate());
}