130 lines
4.1 KiB
C#
130 lines
4.1 KiB
C#
//
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// MonoTests.System.Collections.Generic.Test.ComparerTest
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//
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// Authors:
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// Gert Driesen (drieseng@users.sourceforge.net)
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//
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// Copyright (C) 2007 Gert Driesen
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// Copyright 2011 Xamarin Inc (http://www.xamarin.com).
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.Runtime.Serialization.Formatters.Binary;
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using NUnit.Framework;
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using System;
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namespace MonoTests.System.Collections.Generic
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{
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[TestFixture]
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public class ComparerTest
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{
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class CustomComparer : IComparable, IComparable<object>
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{
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int IComparable<object>.CompareTo (object other)
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{
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throw new NotImplementedException ();
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}
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int IComparable.CompareTo (object obj)
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{
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return 9;
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}
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}
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#if NET_4_5
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[Test]
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public void Create ()
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{
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var comparer = Comparer<int>.Create ((a, b) => a - b);
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Assert.AreEqual (-1, comparer.Compare (1, 2), "#1");
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}
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[Test]
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public void Create_Invalid ()
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{
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try {
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Comparer<int>.Create (null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException) {
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}
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}
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#endif
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[Test]
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public void DefaultComparer_UserComparable ()
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{
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IComparer c = Comparer<object>.Default;
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Assert.AreEqual (-9, c.Compare (new object (), new CustomComparer ()), "#1");
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Assert.AreEqual (9, c.Compare (new CustomComparer (), new object ()), "#2");
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}
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[Test]
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public void DefaultComparer_NotComparableArgument ()
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{
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IComparer c = Comparer<object>.Default;
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try {
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c.Compare (new object (), new object ());
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Assert.Fail ("#1");
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} catch (ArgumentException) {
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}
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var o = new object ();
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Assert.AreEqual (0, c.Compare (o, o), "#2");
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}
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[Test]
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public void DeserializeDefault ()
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{
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MemoryStream ms = new MemoryStream ();
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ms.Write (_serializedDefault, 0, _serializedDefault.Length);
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ms.Position = 0;
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BinaryFormatter bf = new BinaryFormatter ();
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Comparer<int> c = (Comparer<int>) bf.Deserialize (ms);
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Assert.IsNotNull (c);
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}
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private static readonly byte [] _serializedDefault = new byte [] {
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0x00, 0x01, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x01, 0x00, 0x00, 0x00,
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0x89, 0x01, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6d, 0x2e, 0x43, 0x6f,
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0x6c, 0x6c, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x2e, 0x47,
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0x65, 0x6e, 0x65, 0x72, 0x69, 0x63, 0x2e, 0x47, 0x65, 0x6e, 0x65,
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0x72, 0x69, 0x63, 0x43, 0x6f, 0x6d, 0x70, 0x61, 0x72, 0x65, 0x72,
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0x60, 0x31, 0x5b, 0x5b, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6d, 0x2e,
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0x49, 0x6e, 0x74, 0x33, 0x32, 0x2c, 0x20, 0x6d, 0x73, 0x63, 0x6f,
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0x72, 0x6c, 0x69, 0x62, 0x2c, 0x20, 0x56, 0x65, 0x72, 0x73, 0x69,
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0x6f, 0x6e, 0x3d, 0x32, 0x2e, 0x30, 0x2e, 0x30, 0x2e, 0x30, 0x2c,
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0x20, 0x43, 0x75, 0x6c, 0x74, 0x75, 0x72, 0x65, 0x3d, 0x6e, 0x65,
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0x75, 0x74, 0x72, 0x61, 0x6c, 0x2c, 0x20, 0x50, 0x75, 0x62, 0x6c,
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0x69, 0x63, 0x4b, 0x65, 0x79, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x3d,
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0x62, 0x37, 0x37, 0x61, 0x35, 0x63, 0x35, 0x36, 0x31, 0x39, 0x33,
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0x34, 0x65, 0x30, 0x38, 0x39, 0x5d, 0x5d, 0x00, 0x00, 0x00, 0x00,
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0x0b };
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}
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}
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