csharpc-sharpdotnetxamlavaloniauicross-platformcross-platform-xamlavaloniaguimulti-platformuser-interfacedotnetcore
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1074 lines
38 KiB
1074 lines
38 KiB
using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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using System.Reactive.Disposables;
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using System.Threading.Tasks;
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using Avalonia.Collections;
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using Avalonia.Controls;
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using Avalonia.Controls.Presenters;
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using Avalonia.Controls.Primitives;
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using Avalonia.Controls.Shapes;
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using Avalonia.Controls.Templates;
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using Avalonia.Data;
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using Avalonia.Diagnostics;
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using Avalonia.Input;
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using Avalonia.Media;
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using Avalonia.Platform;
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using Avalonia.Rendering;
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using Avalonia.Styling;
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using Avalonia.Threading;
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using Avalonia.UnitTests;
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using Avalonia.VisualTree;
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using JetBrains.dotMemoryUnit;
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using Moq;
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using Xunit;
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using Xunit.Abstractions;
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namespace Avalonia.LeakTests
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{
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[DotMemoryUnit(FailIfRunWithoutSupport = false)]
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public class ControlTests
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{
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// Need to have the collection as field, so GC will not free it
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private readonly ObservableCollection<string> _observableCollection = new();
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public ControlTests(ITestOutputHelper atr)
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{
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DotMemoryUnitTestOutput.SetOutputMethod(atr.WriteLine);
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}
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[Fact]
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public void DataGrid_Is_Freed()
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{
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using (Start())
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{
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// When attached to INotifyCollectionChanged, DataGrid will subscribe to it's events, potentially causing leak
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Func<Window> run = () =>
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{
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var window = new Window
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{
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Content = new DataGrid
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{
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Items = _observableCollection
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}
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};
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window.Show();
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// Do a layout and make sure that DataGrid gets added to visual tree.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.IsType<DataGrid>(window.Presenter.Child);
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// Clear the content and ensure the DataGrid is removed.
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window.Content = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<DataGrid>()).ObjectsCount));
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}
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}
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[Fact]
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public void Canvas_Is_Freed()
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{
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using (Start())
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{
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Func<Window> run = () =>
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{
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var window = new Window
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{
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Content = new Canvas()
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};
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window.Show();
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// Do a layout and make sure that Canvas gets added to visual tree.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.IsType<Canvas>(window.Presenter.Child);
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// Clear the content and ensure the Canvas is removed.
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window.Content = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Canvas>()).ObjectsCount));
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}
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}
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[Fact]
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public void Named_Canvas_Is_Freed()
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{
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using (Start())
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{
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Func<Window> run = () =>
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{
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var scope = new NameScope();
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var window = new Window
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{
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Content = new Canvas
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{
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Name = "foo"
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}.RegisterInNameScope(scope)
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};
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NameScope.SetNameScope(window, scope);
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window.Show();
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// Do a layout and make sure that Canvas gets added to visual tree.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.IsType<Canvas>(window.Find<Canvas>("foo"));
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Assert.IsType<Canvas>(window.Presenter.Child);
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// Clear the content and ensure the Canvas is removed.
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window.Content = null;
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NameScope.SetNameScope(window, null);
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Canvas>()).ObjectsCount));
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}
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}
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[Fact]
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public void ScrollViewer_With_Content_Is_Freed()
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{
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using (Start())
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{
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Func<Window> run = () =>
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{
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var window = new Window
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{
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Content = new ScrollViewer
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{
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Content = new Canvas()
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}
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};
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window.Show();
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// Do a layout and make sure that ScrollViewer gets added to visual tree and its
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// template applied.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.IsType<ScrollViewer>(window.Presenter.Child);
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Assert.IsType<Canvas>(((ScrollViewer)window.Presenter.Child).Presenter.Child);
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// Clear the content and ensure the ScrollViewer is removed.
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window.Content = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<TextBox>()).ObjectsCount));
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Canvas>()).ObjectsCount));
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}
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}
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[Fact]
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public void TextBox_Is_Freed()
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{
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using (Start())
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{
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Func<Window> run = () =>
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{
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var window = new Window
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{
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Content = new TextBox()
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};
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window.Show();
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// Do a layout and make sure that TextBox gets added to visual tree and its
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// template applied.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.IsType<TextBox>(window.Presenter.Child);
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Assert.NotEmpty(window.Presenter.Child.GetVisualChildren());
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// Clear the content and ensure the TextBox is removed.
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window.Content = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<TextBox>()).ObjectsCount));
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}
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}
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[Fact]
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public void TextBox_With_Xaml_Binding_Is_Freed()
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{
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using (Start())
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{
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Func<Window> run = () =>
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{
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var window = new Window
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{
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DataContext = new Node { Name = "foo" },
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Content = new TextBox()
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};
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var binding = new Avalonia.Data.Binding
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{
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Path = "Name"
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};
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var textBox = (TextBox)window.Content;
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textBox.Bind(TextBox.TextProperty, binding);
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window.Show();
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// Do a layout and make sure that TextBox gets added to visual tree and its
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// Text property set.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.IsType<TextBox>(window.Presenter.Child);
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Assert.Equal("foo", ((TextBox)window.Presenter.Child).Text);
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// Clear the content and DataContext and ensure the TextBox is removed.
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window.Content = null;
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window.DataContext = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<TextBox>()).ObjectsCount));
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Node>()).ObjectsCount));
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}
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}
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[Fact]
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public void TextBox_Class_Listeners_Are_Freed()
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{
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using (Start())
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{
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TextBox textBox;
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var window = new Window
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{
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Content = textBox = new TextBox()
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};
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window.Show();
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// Do a layout and make sure that TextBox gets added to visual tree and its
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// template applied.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.Same(textBox, window.Presenter.Child);
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// Get the border from the TextBox template.
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var border = textBox.GetTemplateChildren().FirstOrDefault(x => x.Name == "border");
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// The TextBox should have subscriptions to its Classes collection from the
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// default theme.
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Assert.NotEqual(0, textBox.Classes.ListenerCount);
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// Clear the content and ensure the TextBox is removed.
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window.Content = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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// Check that the TextBox has no subscriptions to its Classes collection.
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Assert.Null(((INotifyCollectionChangedDebug)textBox.Classes).GetCollectionChangedSubscribers());
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}
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}
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[Fact]
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public void TreeView_Is_Freed()
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{
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using (Start())
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{
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Func<Window> run = () =>
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{
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var nodes = new[]
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{
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new Node
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{
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Children = new[] { new Node() },
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}
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};
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TreeView target;
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var window = new Window
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{
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Content = target = new TreeView
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{
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DataTemplates =
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{
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new FuncTreeDataTemplate<Node>(
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(x, _) => new TextBlock { Text = x.Name },
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x => x.Children)
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},
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Items = nodes
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}
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};
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window.Show();
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// Do a layout and make sure that TreeViewItems get realized.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.Single(target.GetRealizedContainers());
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// Clear the content and ensure the TreeView is removed.
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window.Content = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<TreeView>()).ObjectsCount));
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}
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}
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[Fact]
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public void Slider_Is_Freed()
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{
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using (Start())
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{
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Func<Window> run = () =>
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{
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var window = new Window
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{
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Content = new Slider()
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};
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window.Show();
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// Do a layout and make sure that Slider gets added to visual tree.
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window.LayoutManager.ExecuteInitialLayoutPass();
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Assert.IsType<Slider>(window.Presenter.Child);
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// Clear the content and ensure the Slider is removed.
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window.Content = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Slider>()).ObjectsCount));
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}
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}
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[Fact]
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public void TabItem_Is_Freed()
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{
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using (Start())
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{
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Func<Window> run = () =>
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{
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var window = new Window
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{
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Content = new TabControl
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{
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Items = new[] { new TabItem() }
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}
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};
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window.Show();
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// Do a layout and make sure that TabControl and TabItem gets added to visual tree.
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window.LayoutManager.ExecuteInitialLayoutPass();
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var tabControl = Assert.IsType<TabControl>(window.Presenter.Child);
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Assert.IsType<TabItem>(tabControl.Presenter.Panel.Children[0]);
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// Clear the items and ensure the TabItem is removed.
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tabControl.Items = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Empty(tabControl.Presenter.Panel.Children);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<TabItem>()).ObjectsCount));
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}
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}
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[Fact]
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public void RendererIsDisposed()
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{
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using (Start())
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{
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var renderer = new Mock<IRenderer>();
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renderer.Setup(x => x.Dispose());
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var impl = new Mock<IWindowImpl>();
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impl.Setup(r => r.TryGetFeature(It.IsAny<Type>())).Returns(null);
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impl.SetupGet(x => x.RenderScaling).Returns(1);
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impl.SetupProperty(x => x.Closed);
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impl.Setup(x => x.CreateRenderer(It.IsAny<IRenderRoot>())).Returns(renderer.Object);
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impl.Setup(x => x.Dispose()).Callback(() => impl.Object.Closed());
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AvaloniaLocator.CurrentMutable.Bind<IWindowingPlatform>()
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.ToConstant(new MockWindowingPlatform(() => impl.Object));
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var window = new Window()
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{
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Content = new Button()
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};
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window.Show();
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window.Close();
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renderer.Verify(r => r.Dispose());
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}
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}
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[Fact]
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public void Control_With_Style_RenderTransform_Is_Freed()
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{
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// # Issue #3545
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using (Start())
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{
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Func<Window> run = () =>
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{
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var window = new Window
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{
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Styles =
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{
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new Style(x => x.OfType<Canvas>())
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{
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Setters =
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{
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new Setter
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{
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Property = Visual.RenderTransformProperty,
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Value = new RotateTransform(45),
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}
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}
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}
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},
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Content = new Canvas()
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};
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window.Show();
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// Do a layout and make sure that Canvas gets added to visual tree with
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// its render transform.
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window.LayoutManager.ExecuteInitialLayoutPass();
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var canvas = Assert.IsType<Canvas>(window.Presenter.Child);
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Assert.IsType<RotateTransform>(canvas.RenderTransform);
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// Clear the content and ensure the Canvas is removed.
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window.Content = null;
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window.LayoutManager.ExecuteLayoutPass();
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Assert.Null(window.Presenter.Child);
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return window;
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};
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var result = run();
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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dotMemory.Check(memory =>
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Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Canvas>()).ObjectsCount));
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}
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}
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|
|
|
[Fact]
|
|
public void Attached_ContextMenu_Is_Freed()
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{
|
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using (Start())
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{
|
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void AttachShowAndDetachContextMenu(Control control)
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|
{
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var contextMenu = new ContextMenu
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{
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Items = new[]
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{
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new MenuItem { Header = "Foo" },
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new MenuItem { Header = "Foo" },
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}
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};
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control.ContextMenu = contextMenu;
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contextMenu.Open(control);
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contextMenu.Close();
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control.ContextMenu = null;
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}
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var window = new Window();
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window.Show();
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Assert.Same(window, FocusManager.Instance.Current);
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// Context menu in resources means the baseline may not be 0.
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var initialMenuCount = 0;
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var initialMenuItemCount = 0;
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dotMemory.Check(memory =>
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{
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initialMenuCount = memory.GetObjects(where => where.Type.Is<ContextMenu>()).ObjectsCount;
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initialMenuItemCount = memory.GetObjects(where => where.Type.Is<MenuItem>()).ObjectsCount;
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});
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AttachShowAndDetachContextMenu(window);
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// Process all Loaded events to free control reference(s)
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Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
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|
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Mock.Get(window.PlatformImpl).Invocations.Clear();
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dotMemory.Check(memory =>
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Assert.Equal(initialMenuCount, memory.GetObjects(where => where.Type.Is<ContextMenu>()).ObjectsCount));
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dotMemory.Check(memory =>
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Assert.Equal(initialMenuItemCount, memory.GetObjects(where => where.Type.Is<MenuItem>()).ObjectsCount));
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}
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}
|
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|
|
[Fact]
|
|
public void Standalone_ContextMenu_Is_Freed()
|
|
{
|
|
using (Start())
|
|
{
|
|
void BuildAndShowContextMenu(Control control)
|
|
{
|
|
var contextMenu = new ContextMenu
|
|
{
|
|
Items = new[]
|
|
{
|
|
new MenuItem { Header = "Foo" },
|
|
new MenuItem { Header = "Foo" },
|
|
}
|
|
};
|
|
|
|
contextMenu.Open(control);
|
|
contextMenu.Close();
|
|
}
|
|
|
|
var window = new Window();
|
|
window.Show();
|
|
|
|
Assert.Same(window, FocusManager.Instance.Current);
|
|
|
|
// Context menu in resources means the baseline may not be 0.
|
|
var initialMenuCount = 0;
|
|
var initialMenuItemCount = 0;
|
|
dotMemory.Check(memory =>
|
|
{
|
|
initialMenuCount = memory.GetObjects(where => where.Type.Is<ContextMenu>()).ObjectsCount;
|
|
initialMenuItemCount = memory.GetObjects(where => where.Type.Is<MenuItem>()).ObjectsCount;
|
|
});
|
|
|
|
BuildAndShowContextMenu(window);
|
|
BuildAndShowContextMenu(window);
|
|
|
|
// Process all Loaded events to free control reference(s)
|
|
Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
|
|
|
|
Mock.Get(window.PlatformImpl).Invocations.Clear();
|
|
dotMemory.Check(memory =>
|
|
Assert.Equal(initialMenuCount, memory.GetObjects(where => where.Type.Is<ContextMenu>()).ObjectsCount));
|
|
dotMemory.Check(memory =>
|
|
Assert.Equal(initialMenuItemCount, memory.GetObjects(where => where.Type.Is<MenuItem>()).ObjectsCount));
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void Path_Is_Freed()
|
|
{
|
|
using (Start())
|
|
{
|
|
var geometry = new EllipseGeometry { Rect = new Rect(0, 0, 10, 10) };
|
|
|
|
Func<Window> run = () =>
|
|
{
|
|
var window = new Window
|
|
{
|
|
Content = new Path
|
|
{
|
|
Data = geometry
|
|
}
|
|
};
|
|
|
|
window.Show();
|
|
|
|
window.LayoutManager.ExecuteInitialLayoutPass();
|
|
Assert.IsType<Path>(window.Presenter.Child);
|
|
|
|
window.Content = null;
|
|
window.LayoutManager.ExecuteLayoutPass();
|
|
Assert.Null(window.Presenter.Child);
|
|
|
|
return window;
|
|
};
|
|
|
|
var result = run();
|
|
|
|
// Process all Loaded events to free control reference(s)
|
|
Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
|
|
|
|
dotMemory.Check(memory =>
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Path>()).ObjectsCount));
|
|
|
|
// We are keeping geometry alive to simulate a resource that outlives the control.
|
|
GC.KeepAlive(geometry);
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void ItemsRepeater_Is_Freed()
|
|
{
|
|
using (Start())
|
|
{
|
|
Func<Window> run = () =>
|
|
{
|
|
var window = new Window
|
|
{
|
|
Content = new ItemsRepeater(),
|
|
};
|
|
|
|
window.Show();
|
|
|
|
window.LayoutManager.ExecuteInitialLayoutPass();
|
|
Assert.IsType<ItemsRepeater>(window.Presenter.Child);
|
|
|
|
window.Content = null;
|
|
window.LayoutManager.ExecuteLayoutPass();
|
|
Assert.Null(window.Presenter.Child);
|
|
|
|
return window;
|
|
};
|
|
|
|
var result = run();
|
|
|
|
// Process all Loaded events to free control reference(s)
|
|
Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
|
|
|
|
dotMemory.Check(memory =>
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<ItemsRepeater>()).ObjectsCount));
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void ElementName_Binding_In_DataTemplate_Is_Freed()
|
|
{
|
|
using (Start())
|
|
{
|
|
// Height of ListBoxItem content + padding.
|
|
const double ListBoxItemHeight = 12;
|
|
const double TextBoxHeight = 25;
|
|
|
|
var items = new ObservableCollection<int>(Enumerable.Range(0, 10));
|
|
NameScope ns;
|
|
TextBox tb;
|
|
ListBox lb;
|
|
var window = new Window
|
|
{
|
|
[NameScope.NameScopeProperty] = ns = new NameScope(),
|
|
Width = 100,
|
|
Height = (items.Count * ListBoxItemHeight) + TextBoxHeight,
|
|
Content = new DockPanel
|
|
{
|
|
Children =
|
|
{
|
|
(tb = new TextBox
|
|
{
|
|
Name = "tb",
|
|
Text = "foo",
|
|
Height = TextBoxHeight,
|
|
[DockPanel.DockProperty] = Dock.Top,
|
|
}),
|
|
(lb = new ListBox
|
|
{
|
|
Items = items,
|
|
ItemTemplate = new FuncDataTemplate<int>((_, _) =>
|
|
new Canvas
|
|
{
|
|
Width = 10,
|
|
Height = 10,
|
|
[!Control.TagProperty] = new Binding
|
|
{
|
|
ElementName = "tb",
|
|
Path = "Text",
|
|
NameScope = new WeakReference<INameScope>(ns),
|
|
}
|
|
}),
|
|
Padding = new Thickness(0),
|
|
}),
|
|
}
|
|
}
|
|
};
|
|
|
|
tb.RegisterInNameScope(ns);
|
|
|
|
window.Show();
|
|
window.LayoutManager.ExecuteInitialLayoutPass();
|
|
|
|
void AssertInitialItemState()
|
|
{
|
|
var item0 = (ListBoxItem)lb.GetRealizedContainers().First();
|
|
var canvas0 = (Canvas)item0.Presenter.Child;
|
|
Assert.Equal("foo", canvas0.Tag);
|
|
}
|
|
|
|
Assert.Equal(10, lb.GetRealizedContainers().Count());
|
|
AssertInitialItemState();
|
|
|
|
items.Clear();
|
|
window.LayoutManager.ExecuteLayoutPass();
|
|
|
|
Assert.Empty(lb.GetRealizedContainers());
|
|
|
|
// Process all Loaded events to free control reference(s)
|
|
Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
|
|
|
|
dotMemory.Check(memory =>
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Canvas>()).ObjectsCount));
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void HotKeyManager_Should_Release_Reference_When_Control_Detached()
|
|
{
|
|
using (Start())
|
|
{
|
|
Func<Window> run = () =>
|
|
{
|
|
var gesture1 = new KeyGesture(Key.A, KeyModifiers.Control);
|
|
var tl = new Window
|
|
{
|
|
Content = new ItemsRepeater(),
|
|
};
|
|
|
|
tl.Show();
|
|
|
|
var button = new Button();
|
|
tl.Content = button;
|
|
tl.Template = CreateWindowTemplate();
|
|
tl.ApplyTemplate();
|
|
tl.Presenter.ApplyTemplate();
|
|
HotKeyManager.SetHotKey(button, gesture1);
|
|
|
|
// Detach the button from the logical tree, so there is no reference to it
|
|
tl.Content = null;
|
|
tl.ApplyTemplate();
|
|
|
|
return tl;
|
|
};
|
|
|
|
var result = run();
|
|
|
|
// Process all Loaded events to free control reference(s)
|
|
Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
|
|
|
|
dotMemory.Check(memory =>
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Button>()).ObjectsCount));
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void HotKeyManager_Should_Release_Reference_When_Control_In_Item_Template_Detached()
|
|
{
|
|
using (Start())
|
|
{
|
|
Func<Window> run = () =>
|
|
{
|
|
var gesture1 = new KeyGesture(Key.A, KeyModifiers.Control);
|
|
|
|
var tl = new Window { SizeToContent = SizeToContent.WidthAndHeight, IsVisible = true };
|
|
var lm = tl.LayoutManager;
|
|
tl.Show();
|
|
|
|
var keyGestures = new AvaloniaList<KeyGesture> { gesture1 };
|
|
var listBox = new ListBox
|
|
{
|
|
Width = 100,
|
|
Height = 100,
|
|
// Create a button with binding to the KeyGesture in the template and add it to references list
|
|
ItemTemplate = new FuncDataTemplate(typeof(KeyGesture), (o, scope) =>
|
|
{
|
|
var keyGesture = o as KeyGesture;
|
|
return new Button
|
|
{
|
|
DataContext = keyGesture,
|
|
[!Button.HotKeyProperty] = new Binding("")
|
|
};
|
|
})
|
|
};
|
|
// Add the listbox and render it
|
|
tl.Content = listBox;
|
|
lm.ExecuteInitialLayoutPass();
|
|
listBox.Items = keyGestures;
|
|
lm.ExecuteLayoutPass();
|
|
|
|
// Let the button detach when clearing the source items
|
|
keyGestures.Clear();
|
|
lm.ExecuteLayoutPass();
|
|
|
|
// Add it again to double check,and render
|
|
keyGestures.Add(gesture1);
|
|
lm.ExecuteLayoutPass();
|
|
|
|
keyGestures.Clear();
|
|
lm.ExecuteLayoutPass();
|
|
|
|
return tl;
|
|
};
|
|
|
|
var result = run();
|
|
|
|
// Process all Loaded events to free control reference(s)
|
|
Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
|
|
|
|
dotMemory.Check(memory =>
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Button>()).ObjectsCount));
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void ToolTip_Is_Freed()
|
|
{
|
|
using (Start())
|
|
{
|
|
Func<Window> run = () =>
|
|
{
|
|
var window = new Window();
|
|
var source = new Button
|
|
{
|
|
Template = new FuncControlTemplate<Button>((parent, _) =>
|
|
new Decorator
|
|
{
|
|
[ToolTip.TipProperty] = new TextBlock
|
|
{
|
|
[~TextBlock.TextProperty] = new TemplateBinding(ContentControl.ContentProperty)
|
|
}
|
|
}),
|
|
};
|
|
|
|
window.Content = source;
|
|
window.Show();
|
|
|
|
var templateChild = (Decorator)source.GetVisualChildren().Single();
|
|
ToolTip.SetIsOpen(templateChild, true);
|
|
|
|
ToolTip.SetIsOpen(templateChild, false);
|
|
|
|
// Detach the button from the logical tree, so there is no reference to it
|
|
window.Content = null;
|
|
|
|
// Mock keep reference on a Popup via InvocationsCollection. So let's clear it before.
|
|
Mock.Get(window.PlatformImpl).Invocations.Clear();
|
|
|
|
return window;
|
|
};
|
|
|
|
var result = run();
|
|
|
|
// Process all Loaded events to free control reference(s)
|
|
Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
|
|
|
|
dotMemory.Check(memory =>
|
|
{
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<TextBlock>()).ObjectsCount);
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<ToolTip>()).ObjectsCount);
|
|
});
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void Flyout_Is_Freed()
|
|
{
|
|
using (Start())
|
|
{
|
|
Func<Window> run = () =>
|
|
{
|
|
var window = new Window();
|
|
var source = new Button
|
|
{
|
|
Template = new FuncControlTemplate<Button>((parent, _) =>
|
|
new Button
|
|
{
|
|
Flyout = new Flyout
|
|
{
|
|
Content = new TextBlock
|
|
{
|
|
[~TextBlock.TextProperty] = new TemplateBinding(ContentControl.ContentProperty)
|
|
}
|
|
}
|
|
}),
|
|
};
|
|
|
|
window.Content = source;
|
|
window.Show();
|
|
|
|
var templateChild = (Button)source.GetVisualChildren().Single();
|
|
templateChild.Flyout!.ShowAt(templateChild);
|
|
|
|
templateChild.Flyout!.Hide();
|
|
|
|
// Detach the button from the logical tree, so there is no reference to it
|
|
window.Content = null;
|
|
|
|
// Mock keep reference on a Popup via InvocationsCollection. So let's clear it before.
|
|
Mock.Get(window.PlatformImpl).Invocations.Clear();
|
|
|
|
return window;
|
|
};
|
|
|
|
var result = run();
|
|
|
|
// Process all Loaded events to free control reference(s)
|
|
Dispatcher.UIThread.RunJobs(DispatcherPriority.Loaded);
|
|
|
|
dotMemory.Check(memory =>
|
|
{
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<TextBlock>()).ObjectsCount);
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Flyout>()).ObjectsCount);
|
|
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<Popup>()).ObjectsCount);
|
|
});
|
|
}
|
|
}
|
|
|
|
private FuncControlTemplate CreateWindowTemplate()
|
|
{
|
|
return new FuncControlTemplate<Window>((parent, scope) =>
|
|
{
|
|
return new ContentPresenter
|
|
{
|
|
Name = "PART_ContentPresenter",
|
|
[~ContentPresenter.ContentProperty] = parent[~ContentControl.ContentProperty],
|
|
}.RegisterInNameScope(scope);
|
|
});
|
|
}
|
|
|
|
private IDisposable Start()
|
|
{
|
|
static void Cleanup()
|
|
{
|
|
// KeyboardDevice holds a reference to the focused item.
|
|
KeyboardDevice.Instance.SetFocusedElement(null, NavigationMethod.Unspecified, KeyModifiers.None);
|
|
|
|
// Empty the dispatcher queue.
|
|
Dispatcher.UIThread.RunJobs();
|
|
}
|
|
|
|
return new CompositeDisposable
|
|
{
|
|
Disposable.Create(Cleanup),
|
|
UnitTestApplication.Start(TestServices.StyledWindow.With(
|
|
focusManager: new FocusManager(),
|
|
keyboardDevice: () => new KeyboardDevice(),
|
|
inputManager: new InputManager()))
|
|
};
|
|
}
|
|
|
|
|
|
private class Node
|
|
{
|
|
public string Name { get; set; }
|
|
public IEnumerable<Node> Children { get; set; }
|
|
}
|
|
|
|
private class NullRenderer : IRenderer
|
|
{
|
|
public bool DrawFps { get; set; }
|
|
public bool DrawDirtyRects { get; set; }
|
|
#pragma warning disable CS0067
|
|
public event EventHandler<SceneInvalidatedEventArgs> SceneInvalidated;
|
|
#pragma warning restore CS0067
|
|
public void AddDirty(Visual visual)
|
|
{
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
}
|
|
|
|
public IEnumerable<Visual> HitTest(Point p, Visual root, Func<Visual, bool> filter) => null;
|
|
|
|
public Visual HitTestFirst(Point p, Visual root, Func<Visual, bool> filter) => null;
|
|
|
|
public void Paint(Rect rect)
|
|
{
|
|
}
|
|
|
|
public void RecalculateChildren(Visual visual)
|
|
{
|
|
}
|
|
|
|
public void Resized(Size size)
|
|
{
|
|
}
|
|
|
|
public void Start()
|
|
{
|
|
}
|
|
|
|
public void Stop()
|
|
{
|
|
}
|
|
|
|
public ValueTask<object> TryGetRenderInterfaceFeature(Type featureType) => new(null);
|
|
}
|
|
}
|
|
}
|
|
|