/AvalonEdit/ICSharpCode.AvalonEdit.Tests/Utils/ExtensionMethodsTests.cs

 1// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
 2// 
 3// Permission is hereby granted, free of charge, to any person obtaining a copy of this
 4// software and associated documentation files (the "Software"), to deal in the Software
 5// without restriction, including without limitation the rights to use, copy, modify, merge,
 6// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
 7// to whom the Software is furnished to do so, subject to the following conditions:
 8// 
 9// The above copyright notice and this permission notice shall be included in all copies or
10// substantial portions of the Software.
11// 
12// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
13// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
14// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
15// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
16// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
17// DEALINGS IN THE SOFTWARE.
18
19using System;
20using NUnit.Framework;
21
22namespace ICSharpCode.AvalonEdit.Utils
23{
24	[TestFixture]
25	public class ExtensionMethodsTests
26	{
27		[Test]
28		public void ZeroIsNotCloseToOne()
29		{
30			Assert.IsFalse(0.0.IsClose(1));
31		}
32		
33		[Test]
34		public void ZeroIsCloseToZero()
35		{
36			Assert.IsTrue(0.0.IsClose(0));
37		}
38		
39		[Test]
40		public void InfinityIsCloseToInfinity()
41		{
42			Assert.IsTrue(double.PositiveInfinity.IsClose(double.PositiveInfinity));
43		}
44		
45		[Test]
46		public void NaNIsNotCloseToNaN()
47		{
48			Assert.IsFalse(double.NaN.IsClose(double.NaN));
49		}
50	}
51}