public async Task RemoveLastPage(bool useMaui)
{
ContentPage initialPage = new ContentPage();
ContentPage pushedPage = new ContentPage();
ContentPage initialPageAppearing = null;
ContentPage pageDisappeared = null;
NavigationPage nav = new TestNavigationPage(useMaui, initialPage);
_ = new Window(nav);
nav.SendAppearing();
initialPage.Appearing += (sender, _)
=> initialPageAppearing = (ContentPage)sender;
pushedPage.Disappearing += (sender, _)
=> pageDisappeared = (ContentPage)sender;
await nav.PushAsync(pushedPage);
Assert.IsNull(initialPageAppearing);
Assert.IsNull(pageDisappeared);
nav.Navigation.RemovePage(pushedPage);
Assert.AreEqual(initialPageAppearing, initialPage);
Assert.AreEqual(pageDisappeared, pushedPage);
}
public async Task PopLifeCycle(bool useMaui)
{
ContentPage initialPage = new ContentPage();
ContentPage pushedPage = new ContentPage();
ContentPage rootPageFiresAppearingAfterPop = null;
ContentPage pageDisappeared = null;
NavigationPage nav = new TestNavigationPage(useMaui, initialPage);
_ = new Window(nav);
nav.SendAppearing();
initialPage.Appearing += (sender, _)
=> rootPageFiresAppearingAfterPop = (ContentPage)sender;
pushedPage.Disappearing += (sender, _)
=> pageDisappeared = (ContentPage)sender;
await nav.PushAsync(pushedPage);
Assert.IsNull(rootPageFiresAppearingAfterPop);
Assert.IsNull(pageDisappeared);
await nav.PopAsync();
Assert.AreEqual(initialPage, rootPageFiresAppearingAfterPop);
Assert.AreEqual(pushedPage, pageDisappeared);
}
public async Task RemoveInnerPage(bool useMaui)
{
ContentPage initialPage = new ContentPage();
ContentPage pushedPage = new ContentPage();
ContentPage initialPageAppearing = null;
ContentPage pageDisappeared = null;
NavigationPage nav = new TestNavigationPage(useMaui, initialPage);
_ = new Window(nav);
nav.SendAppearing();
var pageToRemove = new ContentPage();
await nav.PushAsync(pageToRemove);
await nav.PushAsync(pushedPage);
initialPage.Appearing += (__, _)
=> Assert.Fail("Appearing Fired Incorrectly");
pushedPage.Disappearing += (__, _)
=> Assert.Fail("Appearing Fired Incorrectly");
nav.Navigation.RemovePage(pageToRemove);
}
public async Task PushLifeCycle(bool useMaui)
{
ContentPage initialPage = new ContentPage();
ContentPage pushedPage = new ContentPage();
ContentPage initialPageDisappear = null;
ContentPage pageAppearing = null;
initialPage.Disappearing += (sender, _)
=> initialPageDisappear = (ContentPage)sender;
pushedPage.Appearing += (sender, _)
=> pageAppearing = (ContentPage)sender;
NavigationPage nav = new TestNavigationPage(useMaui, initialPage);
_ = new Window(nav);
nav.SendAppearing();
await nav.PushAsync(pushedPage);
Assert.AreEqual(initialPageDisappear, initialPage);
Assert.AreEqual(pageAppearing, pushedPage);
}
