Nuclex.Support/Source/StringHelper.Test.cs

94 lines
2.7 KiB
C#

#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2008 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.IO;
#if UNITTEST
using NUnit.Framework;
using NUnit.Framework.SyntaxHelpers;
namespace Nuclex.Support {
/// <summary>Unit Test for the string helper class</summary>
[TestFixture]
public class StringHelperTest {
/// <summary>
/// Verifies that the IndexNotOfAny() method works identical to the framework's
/// implementation of the IndexOfAny() method, only inverted.
/// </summary>
[Test]
public void TestIndexNotOfAny() {
string positive = "xxxxxOOOOO";
string negative = "OOOOOxxxxx";
Assert.AreEqual(
positive.IndexOfAny(new char[] { 'O' }),
StringHelper.IndexNotOfAny(negative, new char[] { 'O' })
);
}
/// <summary>
/// Verifies that the LastIndexNotOfAny() method works identical to the framework's
/// implementation of the LastIndexOfAny() method, only inverted.
/// </summary>
[Test]
public void TestLastIndexNotOfAny() {
string positive = "xxxxxOOOOO";
string negative = "OOOOOxxxxx";
Assert.AreEqual(
positive.LastIndexOfAny(new char[] { 'x' }),
StringHelper.LastIndexNotOfAny(negative, new char[] { 'x' })
);
}
/// <summary>
/// Verifies that the IndexNotOfAny() method works with multiple characters
/// </summary>
[Test]
public void TestMultipleCharIndexNotOfAny() {
string haystack = "0123456789";
Assert.AreEqual(
5, StringHelper.IndexNotOfAny(haystack, new char[] { '4', '3', '2', '1', '0' })
);
}
/// <summary>
/// Verifies that the IndexNotOfAny() method works with multiple characters
/// </summary>
[Test]
public void TestMultipleCharLastIndexNotOfAny() {
string haystack = "0123456789";
Assert.AreEqual(
4, StringHelper.LastIndexNotOfAny(haystack, new char[] { '9', '8', '7', '6', '5' })
);
}
}
} // namespace Nuclex.Support
#endif // UNITTEST