public void UsesBackupSubjectIfActionTargetNotAvailable()
{
var view = new DependencyObject();
var backupView = new DependencyObject();
var cmd = new CommandAction(view, backupView, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
View.SetActionTarget(backupView, this.target);
view.SetValue(FrameworkElement.DataContextProperty, this.target);
cmd.Execute(null);
Assert.IsTrue(this.target.DoSomethingCalled);
}
public void OperatesAfterCollection()
{
var view = new DependencyObject();
var cmd = new CommandAction(view, null, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
GC.Collect();
View.SetActionTarget(view, this.target);
cmd.Execute(null);
Assert.IsTrue(this.target.DoSomethingCalled);
}
public void ThrowsIfActionNonExistentBehaviourIsThrowAndActionIsNonExistent()
{
var cmd = new CommandAction(this.subject, null, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
Assert.DoesNotThrow(() => View.SetActionTarget(this.subject, new Target2()));
Assert.Throws<ActionNotFoundException>(() => cmd.Execute(null));
}
public void ExecuteThrowsIfTargetIsDefault()
{
View.SetActionTarget(this.subject, View.InitialActionTarget);
var cmd = new CommandAction(this.subject, null, "DoSomething", ActionUnavailableBehaviour.Throw, ActionUnavailableBehaviour.Throw);
Assert.Throws<ActionNotSetException>(() => cmd.Execute(null));
}
public void PropagatesActionException()
{
var cmd = new CommandAction(this.subject, null, "DoSomethingUnsuccessfully", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
var e = Assert.Throws<InvalidOperationException>(() => cmd.Execute(null));
Assert.AreEqual("woo", e.Message);
}
public void ExecutePassesArgumentIfGiven()
{
var cmd = new CommandAction(this.subject, null, "DoSomethingWithArgument", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
var arg = "hello";
cmd.Execute(arg);
Assert.AreEqual("hello", this.target.DoSomethingArgument);
}
public void ExecuteCallsMethod()
{
var cmd = new CommandAction(this.subject, null, "DoSomething", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
cmd.Execute(null);
Assert.True(this.target.DoSomethingCalled);
}
public void ExecuteDoesNothingIfActionIsNull()
{
var cmd = new CommandAction(this.subject, null, "DoesNotExist", ActionUnavailableBehaviour.Enable, ActionUnavailableBehaviour.Enable);
View.SetActionTarget(this.subject, null);
Assert.DoesNotThrow(() => cmd.Execute(null));
}
