118 строки
4.1 KiB
C#
118 строки
4.1 KiB
C#
// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
|
|
// software and associated documentation files (the "Software"), to deal in the Software
|
|
// without restriction, including without limitation the rights to use, copy, modify, merge,
|
|
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
|
|
// to whom the Software is furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all copies or
|
|
// substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
|
|
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
|
|
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
|
|
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
|
|
#if !DEBUG
|
|
using System;
|
|
using System.Runtime.CompilerServices;
|
|
using AvaloniaEdit.AvaloniaMocks;
|
|
using AvaloniaEdit.Document;
|
|
using AvaloniaEdit.Editing;
|
|
using AvaloniaEdit.Rendering;
|
|
using NUnit.Framework;
|
|
|
|
namespace AvaloniaEdit
|
|
{
|
|
[TestFixture]
|
|
public class WeakReferenceTests
|
|
{
|
|
[MethodImpl(MethodImplOptions.NoInlining)]
|
|
private static WeakReference CreateControl<T>(Action<T> action = null)
|
|
where T : class, new()
|
|
{
|
|
WeakReference wr;
|
|
|
|
using (UnitTestApplication.Start(new TestServices(renderInterface: new MockPlatformRenderInterface())))
|
|
{
|
|
var control = new T();
|
|
wr = new WeakReference(control);
|
|
action?.Invoke(control);
|
|
control = null;
|
|
}
|
|
|
|
GarbageCollect();
|
|
|
|
return wr;
|
|
}
|
|
|
|
[Test]
|
|
public void TextViewCanBeCollectedTest()
|
|
{
|
|
var wr = CreateControl<TextView>();
|
|
Assert.IsFalse(wr.IsAlive);
|
|
}
|
|
|
|
[Test]
|
|
public void DocumentDoesNotHoldReferenceToTextView()
|
|
{
|
|
TextDocument textDocument = new TextDocument();
|
|
Assert.AreEqual(0, textDocument.LineTrackers.Count);
|
|
|
|
var wr = CreateControl<TextView>(t => t.Document = textDocument);
|
|
|
|
Assert.IsFalse(wr.IsAlive);
|
|
// document cannot immediately clear the line tracker
|
|
Assert.AreEqual(1, textDocument.LineTrackers.Count);
|
|
|
|
// but it should clear it on the next change
|
|
textDocument.Insert(0, "a");
|
|
Assert.AreEqual(0, textDocument.LineTrackers.Count);
|
|
}
|
|
|
|
//[Test] // currently fails due to some Avalonia static
|
|
void DocumentDoesNotHoldReferenceToTextArea()
|
|
{
|
|
var textDocument = new TextDocument();
|
|
var wr = CreateControl<TextArea>(t => t.Document = textDocument);
|
|
Assert.IsFalse(wr.IsAlive);
|
|
GC.KeepAlive(textDocument);
|
|
}
|
|
|
|
//[Test] // currently fails due to some Avalonia static
|
|
void DocumentDoesNotHoldReferenceToTextEditor()
|
|
{
|
|
var textDocument = new TextDocument();
|
|
var wr = CreateControl<TextEditor>(t => t.Document = textDocument);
|
|
Assert.IsFalse(wr.IsAlive);
|
|
GC.KeepAlive(textDocument);
|
|
}
|
|
|
|
[Test]
|
|
public void DocumentDoesNotHoldReferenceToLineMargin()
|
|
{
|
|
TextDocument textDocument = new TextDocument();
|
|
var wr = CreateControl<TextView>(t =>
|
|
{
|
|
t.Document = textDocument;
|
|
new LineNumberMargin { TextView = t };
|
|
});
|
|
|
|
Assert.IsFalse(wr.IsAlive);
|
|
GC.KeepAlive(textDocument);
|
|
}
|
|
|
|
static void GarbageCollect()
|
|
{
|
|
for (int i = 0; i < 3; i++)
|
|
{
|
|
GC.WaitForPendingFinalizers();
|
|
GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif |