83 lines
2.3 KiB
C#
83 lines
2.3 KiB
C#
using System;
|
|
using NUnit.Framework;
|
|
using Umbraco.Core;
|
|
using Umbraco.Core.Collections;
|
|
|
|
namespace Umbraco.Tests.Collections
|
|
{
|
|
[TestFixture]
|
|
public class OrderedHashSetTests
|
|
{
|
|
[Test]
|
|
public void Keeps_Last()
|
|
{
|
|
var list = new OrderedHashSet<MyClass>(keepOldest: false);
|
|
var items = new[] { new MyClass("test"), new MyClass("test"), new MyClass("test") };
|
|
foreach (var item in items)
|
|
{
|
|
list.Add(item);
|
|
}
|
|
|
|
Assert.AreEqual(1, list.Count);
|
|
Assert.AreEqual(items[2].Id, list[0].Id);
|
|
Assert.AreNotEqual(items[0].Id, list[0].Id);
|
|
}
|
|
|
|
[Test]
|
|
public void Keeps_First()
|
|
{
|
|
var list = new OrderedHashSet<MyClass>(keepOldest: true);
|
|
var items = new[] { new MyClass("test"), new MyClass("test"), new MyClass("test") };
|
|
foreach (var item in items)
|
|
{
|
|
list.Add(item);
|
|
}
|
|
|
|
Assert.AreEqual(1, list.Count);
|
|
Assert.AreEqual(items[0].Id, list[0].Id);
|
|
}
|
|
|
|
private class MyClass : IEquatable<MyClass>
|
|
{
|
|
public MyClass(string name)
|
|
{
|
|
Name = name;
|
|
Id = Guid.NewGuid();
|
|
}
|
|
|
|
public string Name { get; }
|
|
public Guid Id { get; }
|
|
|
|
public bool Equals(MyClass other)
|
|
{
|
|
if (ReferenceEquals(null, other)) return false;
|
|
if (ReferenceEquals(this, other)) return true;
|
|
return string.Equals(Name, other.Name);
|
|
}
|
|
|
|
public override bool Equals(object obj)
|
|
{
|
|
if (ReferenceEquals(null, obj)) return false;
|
|
if (ReferenceEquals(this, obj)) return true;
|
|
if (obj.GetType() != this.GetType()) return false;
|
|
return Equals((MyClass)obj);
|
|
}
|
|
|
|
public override int GetHashCode()
|
|
{
|
|
return Name.GetHashCode();
|
|
}
|
|
|
|
public static bool operator ==(MyClass left, MyClass right)
|
|
{
|
|
return Equals(left, right);
|
|
}
|
|
|
|
public static bool operator !=(MyClass left, MyClass right)
|
|
{
|
|
return Equals(left, right) == false;
|
|
}
|
|
}
|
|
}
|
|
}
|