Jo Shields a575963da9 Imported Upstream version 3.6.0
Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14
2014-08-13 10:39:27 +01:00

149 lines
4.5 KiB
C#

//
// MonoTests.System.Collections.Generic.Test.ComparerTest
//
// Authors:
// Gert Driesen (drieseng@users.sourceforge.net)
//
// Copyright (C) 2007 Gert Driesen
// Copyright 2011 Xamarin Inc (http://www.xamarin.com).
//
// 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.
//
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using NUnit.Framework;
using System;
namespace MonoTests.System.Collections.Generic
{
[TestFixture]
public class ComparerTest
{
class CustomComparer : IComparable, IComparable<object>
{
int IComparable<object>.CompareTo (object other)
{
throw new NotImplementedException ();
}
int IComparable.CompareTo (object obj)
{
return 9;
}
}
#if NET_4_5
[Test]
public void Create ()
{
var comparer = Comparer<int>.Create ((a, b) => a - b);
Assert.AreEqual (-1, comparer.Compare (1, 2), "#1");
}
[Test]
public void Create_Invalid ()
{
try {
Comparer<int>.Create (null);
Assert.Fail ("#1");
} catch (ArgumentNullException) {
}
}
#endif
[Test]
public void DefaultComparer_UserComparable ()
{
IComparer c = Comparer<object>.Default;
Assert.AreEqual (-9, c.Compare (new object (), new CustomComparer ()), "#1");
Assert.AreEqual (9, c.Compare (new CustomComparer (), new object ()), "#2");
}
[Test]
public void DefaultComparer_NotComparableArgument ()
{
IComparer c = Comparer<object>.Default;
try {
c.Compare (new object (), new object ());
Assert.Fail ("#1");
} catch (ArgumentException) {
}
var o = new object ();
Assert.AreEqual (0, c.Compare (o, o), "#2");
}
#if !NET_4_0 // FIXME: the blob contains the 2.0 mscorlib version
[Test] // bug #80929
public void SerializeDefault ()
{
Comparer<int> c = Comparer<int>.Default;
BinaryFormatter bf = new BinaryFormatter ();
MemoryStream ms = new MemoryStream ();
bf.Serialize (ms, c);
byte [] buffer = new byte [ms.Length];
ms.Position = 0;
ms.Read (buffer, 0, buffer.Length);
Assert.AreEqual (_serializedDefault, buffer);
}
#endif
[Test]
public void DeserializeDefault ()
{
MemoryStream ms = new MemoryStream ();
ms.Write (_serializedDefault, 0, _serializedDefault.Length);
ms.Position = 0;
BinaryFormatter bf = new BinaryFormatter ();
Comparer<int> c = (Comparer<int>) bf.Deserialize (ms);
Assert.IsNotNull (c);
}
private static readonly byte [] _serializedDefault = new byte [] {
0x00, 0x01, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x01, 0x00, 0x00, 0x00,
0x89, 0x01, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6d, 0x2e, 0x43, 0x6f,
0x6c, 0x6c, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x2e, 0x47,
0x65, 0x6e, 0x65, 0x72, 0x69, 0x63, 0x2e, 0x47, 0x65, 0x6e, 0x65,
0x72, 0x69, 0x63, 0x43, 0x6f, 0x6d, 0x70, 0x61, 0x72, 0x65, 0x72,
0x60, 0x31, 0x5b, 0x5b, 0x53, 0x79, 0x73, 0x74, 0x65, 0x6d, 0x2e,
0x49, 0x6e, 0x74, 0x33, 0x32, 0x2c, 0x20, 0x6d, 0x73, 0x63, 0x6f,
0x72, 0x6c, 0x69, 0x62, 0x2c, 0x20, 0x56, 0x65, 0x72, 0x73, 0x69,
0x6f, 0x6e, 0x3d, 0x32, 0x2e, 0x30, 0x2e, 0x30, 0x2e, 0x30, 0x2c,
0x20, 0x43, 0x75, 0x6c, 0x74, 0x75, 0x72, 0x65, 0x3d, 0x6e, 0x65,
0x75, 0x74, 0x72, 0x61, 0x6c, 0x2c, 0x20, 0x50, 0x75, 0x62, 0x6c,
0x69, 0x63, 0x4b, 0x65, 0x79, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x3d,
0x62, 0x37, 0x37, 0x61, 0x35, 0x63, 0x35, 0x36, 0x31, 0x39, 0x33,
0x34, 0x65, 0x30, 0x38, 0x39, 0x5d, 0x5d, 0x00, 0x00, 0x00, 0x00,
0x0b };
}
}