void Ex01(TestAvaloniaControllers.ITestAvaloniaController controller)
{
Given("a data context", () => DataContext = new object());
Given("a child element", () => ChildElement = new Button {
Name = "ChildElement"
});
Given("an element that has the child element", () => Element = new TestElement {
Name = "element", Content = ChildElement, DataContext = DataContext
});
When("the controller is added", () => AvaloniaController.GetControllers(Element).Add(controller));
When("the controller is attached to the element", () => AvaloniaController.GetControllers(Element).AttachTo(Element));
Then("the data context of the controller should be set", () => controller.DataContext == DataContext);
Then("the element of the controller should be null", () => controller.Element == null);
Then("the child element of the controller should be null", () => controller.ChildElement == null);
When("the element is attached to the logical tree", () => Element.AttachToLogicalTree());
Then("the data context of the controller should be set", () => controller.DataContext == DataContext);
Then("the element of the controller should be set", () => controller.Element == Element);
Then("the child element of the controller should be set", () => controller.ChildElement == ChildElement);
EventHandled = false;
When("the Click event of the child element is raised", () => ChildElement.RaiseEvent(new RoutedEventArgs(Button.ClickEvent, ChildElement)));
Then("the Click event should be handled", () => EventHandled);
}
void Ex02(object dataContext, IEnumerable <Type> expectedControllerTypes)
{
Given("an element that does not contain the data context", () => Element = new TestElement());
When("the AvaloniaController is enabled for the element", () => AvaloniaController.SetIsEnabled(Element, true));
When("a data context of the element is set", () => Element.DataContext = dataContext);
Then("the controller should be attached to the element", () =>
AvaloniaController.GetControllers(Element).Select(controller => controller.GetType()).SequenceEqual(expectedControllerTypes) &&
AvaloniaController.GetControllers(Element).OfType <TestAvaloniaControllers.TestController>().All(controller => controller.DataContext == Element.DataContext)
);
}
void Ex03()
{
Given("an element that contains the data context", () => Element = new TestElement {
DataContext = new TestDataContexts.KeyAttachingTestDataContext()
});
When("the key of the element is set using the AvaloniaController", () => AvaloniaController.SetKey(Element, "TestElement"));
Then("the AvaloniaController should be enabled for the element", () => AvaloniaController.GetIsEnabled(Element));
Then("the controller should be attached to the element", () =>
AvaloniaController.GetControllers(Element).Select(controller => controller.GetType()).SequenceEqual(new[] { typeof(TestAvaloniaControllers.KeyTestDataContextController) }) &&
AvaloniaController.GetControllers(Element).OfType <TestAvaloniaControllers.TestController>().All(controller => controller.DataContext == Element.DataContext)
);
}
void Ex01()
{
ExceptionHandled = true;
When("the controller is added", () => AvaloniaController.GetControllers(Element).Add(Controller));
When("the controller is attached to the element", () => AvaloniaController.GetControllers(Element).AttachTo(Element));
When("the element is attached to the logical tree", () => Element.AttachToLogicalTree());
When("the Changed event of the element is raised", () => Element.RaiseChanged());
Then("the unhandled exception should be handled", () => UnhandledException != null);
}
void Ex06()
{
Given("an element that contains the data context", () => Element = new TestElement {
Name = "Element", DataContext = new TestDataContexts.TestDataContext()
});
When("the AvaloniaController is enabled for the element", () =>
{
AvaloniaController.SetIsEnabled(Element, true);
Controller = Element.GetController <TestAvaloniaControllers.TestAvaloniaController>();
});
Then("the data context of the controller should be set", () => Controller.DataContext == Element.DataContext);
When("the element is attached to the logical tree", () =>
{
Controller.AttachedToLogicalTreeAssertionHandler = () => AttachedToLogicalTreeEventHandled = true;
Element.AttachToLogicalTree();
});
Then("the element of the controller should be set", () => Controller.Element == Element);
Then("the AttachedToLogicalTree event should be handled", () => AttachedToLogicalTreeEventHandled);
When("the Changed event is raised", () =>
{
Controller.ChangedAssertionHandler = () => ChangedEventHandled = true;
Element.RaiseChanged();
});
Then("the Changed event should be handled", () => ChangedEventHandled);
When("the element is detached from the logical tree", () => Element.DetachFromLogicalTree());
When("the AvaloniaController is disabled for the element", () => AvaloniaController.SetIsEnabled(Element, false));
Then("the controller should be detached", () => !AvaloniaController.GetControllers(Element).Any());
Then("the data context of the controller should be null", () => Controller.DataContext == null);
Then("the element of the controller should be null", () => Controller.Element == null);
When("the element is attached to the logical tree", () =>
{
AttachedToLogicalTreeEventHandled = false;
Element.AttachToLogicalTree();
});
Then("the AttachedToLogicalTree event should not be handled", () => !AttachedToLogicalTreeEventHandled);
Then("the controller should not be attached", () => !AvaloniaController.GetControllers(Element).Any());
When("the Changed event is raised", () =>
{
ChangedEventHandled = false;
Element.RaiseChanged();
});
Then("the Changed event should not be handled", () => !ChangedEventHandled);
}
public static T GetController <T>(this StyledElement element) => AvaloniaController.GetControllers(element).OfType <T>().FirstOrDefault();