577 строки
14 KiB
C#
577 строки
14 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Threading.Tasks;
|
|
using NUnit.Framework;
|
|
|
|
namespace Xamarin.Forms.Core.UnitTests
|
|
{
|
|
[TestFixture]
|
|
public class NavigationUnitTest : BaseTestFixture
|
|
{
|
|
[Test]
|
|
public async Task TestNavigationImplPush ()
|
|
{
|
|
NavigationPage nav = new NavigationPage ();
|
|
|
|
Assert.IsNull(nav.RootPage);
|
|
Assert.IsNull (nav.CurrentPage);
|
|
|
|
Label child = new Label {Text = "Label"};
|
|
Page childRoot = new ContentPage {Content = child};
|
|
|
|
await nav.Navigation.PushAsync (childRoot);
|
|
|
|
Assert.AreSame(childRoot, nav.RootPage);
|
|
Assert.AreSame(childRoot, nav.CurrentPage);
|
|
Assert.AreSame(nav.RootPage, nav.CurrentPage);
|
|
}
|
|
|
|
[Test]
|
|
public async Task TestNavigationImplPop ()
|
|
{
|
|
NavigationPage nav = new NavigationPage ();
|
|
|
|
Label child = new Label ();
|
|
Page childRoot = new ContentPage {Content = child};
|
|
|
|
Label child2 = new Label ();
|
|
Page childRoot2 = new ContentPage {Content = child2};
|
|
|
|
await nav.Navigation.PushAsync (childRoot);
|
|
await nav.Navigation.PushAsync (childRoot2);
|
|
|
|
bool fired = false;
|
|
nav.Popped += (sender, e) => fired = true;
|
|
|
|
Assert.AreSame(childRoot, nav.RootPage);
|
|
Assert.AreNotSame(childRoot2, nav.RootPage);
|
|
Assert.AreNotSame(nav.RootPage, nav.CurrentPage);
|
|
|
|
var popped = await nav.Navigation.PopAsync ();
|
|
|
|
Assert.True (fired);
|
|
Assert.AreSame(childRoot, nav.RootPage);
|
|
Assert.AreSame(childRoot, nav.CurrentPage);
|
|
Assert.AreSame(nav.RootPage, nav.CurrentPage);
|
|
Assert.AreEqual (childRoot2, popped);
|
|
|
|
await nav.PopAsync ();
|
|
var last = await nav.Navigation.PopAsync ();
|
|
|
|
Assert.IsNull (last);
|
|
Assert.IsNotNull(nav.RootPage);
|
|
Assert.IsNotNull(nav.CurrentPage);
|
|
Assert.AreSame(nav.RootPage, nav.CurrentPage);
|
|
}
|
|
|
|
[Test]
|
|
public async Task TestPushRoot ()
|
|
{
|
|
NavigationPage nav = new NavigationPage ();
|
|
|
|
Assert.IsNull(nav.RootPage);
|
|
Assert.IsNull (nav.CurrentPage);
|
|
|
|
Label child = new Label {Text = "Label"};
|
|
Page childRoot = new ContentPage {Content = child};
|
|
|
|
await nav.PushAsync (childRoot);
|
|
|
|
Assert.AreSame (childRoot, nav.RootPage);
|
|
Assert.AreSame(childRoot, nav.CurrentPage);
|
|
Assert.AreSame(nav.RootPage, nav.CurrentPage);
|
|
}
|
|
|
|
[Test]
|
|
public async Task TestPushEvent ()
|
|
{
|
|
NavigationPage nav = new NavigationPage ();
|
|
|
|
Label child = new Label ();
|
|
Page childRoot = new ContentPage {Content = child};
|
|
|
|
bool fired = false;
|
|
nav.Pushed += (sender, e) => fired = true;
|
|
|
|
await nav.PushAsync (childRoot);
|
|
|
|
Assert.True (fired);
|
|
}
|
|
|
|
[Test]
|
|
public async Task TestDoublePush ()
|
|
{
|
|
NavigationPage nav = new NavigationPage ();
|
|
|
|
Label child = new Label ();
|
|
Page childRoot = new ContentPage {Content = child};
|
|
|
|
await nav.PushAsync (childRoot);
|
|
|
|
bool fired = false;
|
|
nav.Pushed += (sender, e) => fired = true;
|
|
|
|
Assert.AreSame(childRoot, nav.RootPage);
|
|
Assert.AreSame(childRoot, nav.CurrentPage);
|
|
|
|
await nav.PushAsync (childRoot);
|
|
|
|
Assert.False (fired);
|
|
Assert.AreSame(childRoot, nav.RootPage);
|
|
Assert.AreSame(childRoot, nav.CurrentPage);
|
|
Assert.AreSame(nav.RootPage, nav.CurrentPage);
|
|
}
|
|
|
|
[Test]
|
|
public async Task TestPop ()
|
|
{
|
|
NavigationPage nav = new NavigationPage ();
|
|
|
|
Label child = new Label ();
|
|
Page childRoot = new ContentPage {Content = child};
|
|
|
|
Label child2 = new Label ();
|
|
Page childRoot2 = new ContentPage {Content = child2};
|
|
|
|
await nav.PushAsync (childRoot);
|
|
await nav.PushAsync (childRoot2);
|
|
|
|
bool fired = false;
|
|
nav.Popped += (sender, e) => fired = true;
|
|
var popped = await nav.PopAsync ();
|
|
|
|
Assert.True (fired);
|
|
Assert.AreSame (childRoot, nav.CurrentPage);
|
|
Assert.AreEqual (childRoot2, popped);
|
|
|
|
await nav.PopAsync ();
|
|
var last = await nav.PopAsync ();
|
|
|
|
Assert.IsNull (last);
|
|
}
|
|
|
|
[Test]
|
|
public void TestTint ()
|
|
{
|
|
var nav = new NavigationPage ();
|
|
|
|
Assert.AreEqual (Color.Default, nav.Tint);
|
|
|
|
bool signaled = false;
|
|
nav.PropertyChanged += (sender, args) => {
|
|
if (args.PropertyName == "Tint")
|
|
signaled = true;
|
|
};
|
|
|
|
nav.Tint = new Color (1, 0, 0);
|
|
|
|
Assert.AreEqual (new Color (1, 0, 0), nav.Tint);
|
|
Assert.True (signaled);
|
|
}
|
|
|
|
[Test]
|
|
public void TestTintDoubleSet ()
|
|
{
|
|
var nav = new NavigationPage ();
|
|
|
|
bool signaled = false;
|
|
nav.PropertyChanged += (sender, args) => {
|
|
if (args.PropertyName == "Tint")
|
|
signaled = true;
|
|
};
|
|
|
|
nav.Tint = nav.Tint;
|
|
|
|
Assert.False (signaled);
|
|
}
|
|
|
|
[Test]
|
|
public async Task TestPopToRoot ()
|
|
{
|
|
var nav = new NavigationPage ();
|
|
|
|
bool signaled = false;
|
|
nav.PoppedToRoot += (sender, args) => signaled = true;
|
|
|
|
var root = new ContentPage {Content = new View ()};
|
|
var child1 = new ContentPage {Content = new View ()};
|
|
var child2 = new ContentPage {Content = new View ()};
|
|
|
|
await nav.PushAsync (root);
|
|
await nav.PushAsync (child1);
|
|
await nav.PushAsync (child2);
|
|
|
|
nav.PopToRootAsync ();
|
|
|
|
Assert.True (signaled);
|
|
Assert.AreSame (root, nav.RootPage);
|
|
Assert.AreSame(root, nav.CurrentPage);
|
|
Assert.AreSame(nav.RootPage, nav.CurrentPage);
|
|
}
|
|
|
|
[Test]
|
|
public async Task TestPopToRootEventArgs ()
|
|
{
|
|
var nav = new NavigationPage ();
|
|
|
|
List<Page> poppedChildren = null;
|
|
nav.PoppedToRoot += (sender, args) => poppedChildren = (args as PoppedToRootEventArgs).PoppedPages.ToList();
|
|
|
|
var root = new ContentPage {Content = new View ()};
|
|
var child1 = new ContentPage {Content = new View ()};
|
|
var child2 = new ContentPage {Content = new View ()};
|
|
|
|
await nav.PushAsync (root);
|
|
await nav.PushAsync (child1);
|
|
await nav.PushAsync (child2);
|
|
|
|
await nav.PopToRootAsync ();
|
|
|
|
Assert.IsNotNull (poppedChildren);
|
|
Assert.AreEqual (2, poppedChildren.Count);
|
|
Assert.Contains (child1, poppedChildren);
|
|
Assert.Contains (child2, poppedChildren);
|
|
Assert.AreSame(root, nav.RootPage);
|
|
Assert.AreSame(root, nav.CurrentPage);
|
|
Assert.AreSame(nav.RootPage, nav.CurrentPage);
|
|
}
|
|
|
|
[Test]
|
|
public async Task PeekOne()
|
|
{
|
|
var nav = new NavigationPage();
|
|
|
|
bool signaled = false;
|
|
nav.PoppedToRoot += (sender, args) => signaled = true;
|
|
|
|
var root = new ContentPage { Content = new View() };
|
|
var child1 = new ContentPage { Content = new View() };
|
|
var child2 = new ContentPage { Content = new View() };
|
|
|
|
await nav.PushAsync(root);
|
|
await nav.PushAsync(child1);
|
|
await nav.PushAsync(child2);
|
|
|
|
Assert.AreEqual(((INavigationPageController)nav).Peek(1), child1);
|
|
}
|
|
|
|
[Test]
|
|
public async Task PeekZero()
|
|
{
|
|
var nav = new NavigationPage();
|
|
|
|
bool signaled = false;
|
|
nav.PoppedToRoot += (sender, args) => signaled = true;
|
|
|
|
var root = new ContentPage { Content = new View() };
|
|
var child1 = new ContentPage { Content = new View() };
|
|
var child2 = new ContentPage { Content = new View() };
|
|
|
|
await nav.PushAsync(root);
|
|
await nav.PushAsync(child1);
|
|
await nav.PushAsync(child2);
|
|
|
|
Assert.AreEqual(((INavigationPageController)nav).Peek(0), child2);
|
|
Assert.AreEqual(((INavigationPageController)nav).Peek(), child2);
|
|
}
|
|
|
|
[Test]
|
|
public async Task PeekPastStackDepth()
|
|
{
|
|
var nav = new NavigationPage();
|
|
|
|
bool signaled = false;
|
|
nav.PoppedToRoot += (sender, args) => signaled = true;
|
|
|
|
var root = new ContentPage { Content = new View() };
|
|
var child1 = new ContentPage { Content = new View() };
|
|
var child2 = new ContentPage { Content = new View() };
|
|
|
|
await nav.PushAsync(root);
|
|
await nav.PushAsync(child1);
|
|
await nav.PushAsync(child2);
|
|
|
|
Assert.AreEqual(((INavigationPageController)nav).Peek(3), null);
|
|
}
|
|
|
|
[Test]
|
|
public async Task PeekShallow()
|
|
{
|
|
var nav = new NavigationPage();
|
|
|
|
bool signaled = false;
|
|
nav.PoppedToRoot += (sender, args) => signaled = true;
|
|
|
|
var root = new ContentPage { Content = new View() };
|
|
var child1 = new ContentPage { Content = new View() };
|
|
var child2 = new ContentPage { Content = new View() };
|
|
|
|
await nav.PushAsync(root);
|
|
await nav.PushAsync(child1);
|
|
await nav.PushAsync(child2);
|
|
|
|
Assert.AreEqual(((INavigationPageController)nav).Peek(-1), null);
|
|
}
|
|
|
|
[Test]
|
|
public async Task PeekEmpty([Range(0, 3)] int depth)
|
|
{
|
|
var nav = new NavigationPage();
|
|
|
|
bool signaled = false;
|
|
nav.PoppedToRoot += (sender, args) => signaled = true;
|
|
|
|
Assert.AreEqual(((INavigationPageController)nav).Peek(depth), null);
|
|
}
|
|
|
|
|
|
[Test]
|
|
public void ConstructWithRoot ()
|
|
{
|
|
var root = new ContentPage ();
|
|
var nav = new NavigationPage (root);
|
|
|
|
|
|
Assert.AreEqual (1, ((INavigationPageController)nav).StackDepth);
|
|
Assert.AreEqual (root, ((IElementController)nav).LogicalChildren[0]);
|
|
|
|
}
|
|
|
|
[Test]
|
|
public async Task NavigationChangedEventArgs ()
|
|
{
|
|
var rootPage = new ContentPage { Title = "Root" };
|
|
var navPage = new NavigationPage (rootPage);
|
|
|
|
var rootArg = new Page ();
|
|
|
|
navPage.Pushed += (s, e) => {
|
|
rootArg = e.Page;
|
|
};
|
|
|
|
var pushPage = new ContentPage {
|
|
Title = "Page 2"
|
|
};
|
|
|
|
await navPage.PushAsync (pushPage);
|
|
|
|
Assert.AreEqual (rootArg, pushPage);
|
|
|
|
var secondPushPage = new ContentPage {
|
|
Title = "Page 3"
|
|
};
|
|
|
|
await navPage.PushAsync (secondPushPage);
|
|
|
|
Assert.AreEqual (rootArg, secondPushPage);
|
|
}
|
|
|
|
[Test]
|
|
public async Task CurrentPageChanged()
|
|
{
|
|
var root = new ContentPage { Title = "Root" };
|
|
var navPage = new NavigationPage (root);
|
|
|
|
bool changing = false;
|
|
navPage.PropertyChanging += (object sender, PropertyChangingEventArgs e) => {
|
|
if (e.PropertyName == NavigationPage.CurrentPageProperty.PropertyName) {
|
|
Assert.That (navPage.CurrentPage, Is.SameAs (root));
|
|
changing = true;
|
|
}
|
|
};
|
|
|
|
var next = new ContentPage { Title = "Next" };
|
|
|
|
bool changed = false;
|
|
navPage.PropertyChanged += (sender, e) => {
|
|
if (e.PropertyName == NavigationPage.CurrentPageProperty.PropertyName) {
|
|
Assert.That (navPage.CurrentPage, Is.SameAs (next));
|
|
changed = true;
|
|
}
|
|
};
|
|
|
|
await navPage.PushAsync (next);
|
|
|
|
Assert.That (changing, Is.True, "PropertyChanging was not raised for 'CurrentPage'");
|
|
Assert.That (changed, Is.True, "PropertyChanged was not raised for 'CurrentPage'");
|
|
}
|
|
|
|
[Test]
|
|
public async void HandlesPopToRoot ()
|
|
{
|
|
var root = new ContentPage { Title = "Root" };
|
|
var navPage = new NavigationPage (root);
|
|
|
|
await navPage.PushAsync (new ContentPage ());
|
|
await navPage.PushAsync (new ContentPage ());
|
|
|
|
bool popped = false;
|
|
navPage.PoppedToRoot += (sender, args) => {
|
|
popped = true;
|
|
};
|
|
|
|
await navPage.Navigation.PopToRootAsync ();
|
|
|
|
Assert.True (popped);
|
|
}
|
|
|
|
[Test]
|
|
public void SendsBackButtonEventToCurrentPage ()
|
|
{
|
|
var current = new BackButtonPage ();
|
|
var navPage = new NavigationPage (current);
|
|
|
|
var emitted = false;
|
|
current.BackPressed += (sender, args) => emitted = true;
|
|
|
|
navPage.SendBackButtonPressed ();
|
|
|
|
Assert.True (emitted);
|
|
}
|
|
|
|
[Test]
|
|
public void DoesNotSendBackEventToNonCurrentPage ()
|
|
{
|
|
var current = new BackButtonPage ();
|
|
var navPage = new NavigationPage (current);
|
|
navPage.PushAsync (new ContentPage ());
|
|
|
|
var emitted = false;
|
|
current.BackPressed += (sender, args) => emitted = true;
|
|
|
|
navPage.SendBackButtonPressed ();
|
|
|
|
Assert.False (emitted);
|
|
}
|
|
|
|
[Test]
|
|
public async void NavigatesBackWhenBackButtonPressed ()
|
|
{
|
|
var root = new ContentPage { Title = "Root" };
|
|
var navPage = new NavigationPage (root);
|
|
|
|
await navPage.PushAsync (new ContentPage ());
|
|
|
|
var result = navPage.SendBackButtonPressed ();
|
|
|
|
Assert.AreEqual (root, navPage.CurrentPage);
|
|
Assert.True (result);
|
|
}
|
|
|
|
[Test]
|
|
public async void DoesNotNavigatesBackWhenBackButtonPressedIfHandled ()
|
|
{
|
|
var root = new BackButtonPage { Title = "Root" };
|
|
var second = new BackButtonPage () {Handle = true};
|
|
var navPage = new NavigationPage (root);
|
|
|
|
await navPage.PushAsync (second);
|
|
|
|
navPage.SendBackButtonPressed ();
|
|
|
|
Assert.AreEqual (second, navPage.CurrentPage);
|
|
}
|
|
|
|
[Test]
|
|
public void DoesNotHandleBackButtonWhenNoNavStack ()
|
|
{
|
|
var root = new ContentPage { Title = "Root" };
|
|
var navPage = new NavigationPage (root);
|
|
|
|
var result = navPage.SendBackButtonPressed ();
|
|
Assert.False (result);
|
|
}
|
|
|
|
[Test]
|
|
public void TestInsertPage()
|
|
{
|
|
var root = new ContentPage { Title = "Root" };
|
|
var newPage = new ContentPage();
|
|
var navPage = new NavigationPage(root);
|
|
|
|
navPage.Navigation.InsertPageBefore(newPage, navPage.RootPage);
|
|
|
|
Assert.AreSame(newPage, navPage.RootPage);
|
|
Assert.AreNotSame(newPage, navPage.CurrentPage);
|
|
Assert.AreNotSame(navPage.RootPage, navPage.CurrentPage);
|
|
Assert.AreSame(root, navPage.CurrentPage);
|
|
|
|
Assert.Throws<ArgumentException>(() =>
|
|
{
|
|
navPage.Navigation.InsertPageBefore(new ContentPage(), new ContentPage());
|
|
});
|
|
|
|
Assert.Throws<ArgumentException>(() =>
|
|
{
|
|
navPage.Navigation.InsertPageBefore(navPage.RootPage, navPage.CurrentPage);
|
|
});
|
|
|
|
Assert.Throws<ArgumentNullException>(() =>
|
|
{
|
|
navPage.Navigation.InsertPageBefore(null, navPage.CurrentPage);
|
|
});
|
|
|
|
Assert.Throws<ArgumentNullException>(() =>
|
|
{
|
|
navPage.Navigation.InsertPageBefore(new ContentPage(), null);
|
|
});
|
|
}
|
|
|
|
[Test]
|
|
public async void TestRemovePage()
|
|
{
|
|
var root = new ContentPage { Title = "Root" };
|
|
var newPage = new ContentPage();
|
|
var navPage = new NavigationPage(root);
|
|
await navPage.PushAsync(newPage);
|
|
|
|
navPage.Navigation.RemovePage(root);
|
|
|
|
Assert.AreSame(newPage, navPage.RootPage);
|
|
Assert.AreSame(newPage, navPage.CurrentPage);
|
|
Assert.AreSame(navPage.RootPage, navPage.CurrentPage);
|
|
Assert.AreNotSame(root, navPage.CurrentPage);
|
|
|
|
Assert.Throws<ArgumentException>(() =>
|
|
{
|
|
navPage.Navigation.RemovePage(root);
|
|
});
|
|
|
|
Assert.Throws<InvalidOperationException>(() =>
|
|
{
|
|
navPage.Navigation.RemovePage(newPage);
|
|
});
|
|
|
|
Assert.Throws<ArgumentNullException>(() =>
|
|
{
|
|
navPage.Navigation.RemovePage(null);
|
|
});
|
|
}
|
|
|
|
[Test (Description = "CurrentPage should not be set to null when you attempt to pop the last page")]
|
|
[Property ("Bugzilla", 28335)]
|
|
public async Task CurrentPageNotNullPoppingRoot()
|
|
{
|
|
var root = new ContentPage { Title = "Root" };
|
|
var navPage = new NavigationPage (root);
|
|
var popped = await navPage.PopAsync ();
|
|
Assert.That (popped, Is.Null);
|
|
Assert.That (navPage.CurrentPage, Is.SameAs (root));
|
|
}
|
|
}
|
|
|
|
internal class BackButtonPage : ContentPage
|
|
{
|
|
public event EventHandler BackPressed;
|
|
|
|
public bool Handle = false;
|
|
|
|
protected override bool OnBackButtonPressed ()
|
|
{
|
|
if (BackPressed != null)
|
|
BackPressed (this, EventArgs.Empty);
|
|
return Handle;
|
|
}
|
|
}
|
|
} |