Nuclex.Support/Source/Collections/Parentable.Test.cs

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#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2012 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.Collections.Generic;
#if UNITTEST
using NUnit.Framework;
namespace Nuclex.Support.Collections {
/// <summary>Unit Test for the Parentable class</summary>
[TestFixture]
internal class ParentableTest {
#region class TestParentable
/// <summary>Parentable object that can be the child of an int</summary>
private class TestParentable : Parentable<int> {
/// <summary>Initializes a new instance of the parentable test class</summary>
public TestParentable() { }
/// <summary>The parent object that owns this instance</summary>
public int GetParent() {
return base.Parent;
}
/// <summary>Invoked whenever the instance's owner changes</summary>
/// <remarks>
/// When items are parented for the first time, the oldParent argument will
/// be null. Also, if the element is removed from the collection, the
/// current parent will be null.
/// </remarks>
/// <param name="oldParent">Previous owner of the instance</param>
protected override void OnParentChanged(int oldParent) {
this.parentChangedCalled = true;
base.OnParentChanged(oldParent); // to satisfy NCover :-/
}
/// <summary>Whether the OnParentChanged method has been called</summary>
public bool ParentChangedCalled {
get { return this.parentChangedCalled; }
}
/// <summary>Whether the OnParentChanged method has been called</summary>
private bool parentChangedCalled;
}
#endregion // class TestParentable
/// <summary>
/// Tests whether a parent can be assigned and then retrieved from
/// the parentable object
/// </summary>
[Test]
public void TestParentAssignment() {
TestParentable testParentable = new TestParentable();
testParentable.SetParent(12345);
Assert.AreEqual(12345, testParentable.GetParent());
}
/// <summary>
/// Tests whether a parent can be assigned and then retrieved from
/// the parentable object
/// </summary>
[Test]
public void TestParentChangedNotification() {
TestParentable testParentable = new TestParentable();
testParentable.SetParent(12345);
Assert.IsTrue(testParentable.ParentChangedCalled);
}
}
} // namespace Nuclex.Support.Collections
#endif // UNITTEST