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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Globalization;
using Xunit;
#pragma warning disable 618 // obsolete types
namespace System.Collections.Tests
{
public static class CaseInsensitiveHashCodeProviderTests
{
[Theory]
[InlineData("hello", "HELLO", true)]
[InlineData("hello", "hello", true)]
[InlineData("HELLO", "HELLO", true)]
[InlineData("hello", "goodbye", false)]
[InlineData(5, 5, true)]
[InlineData(10, 5, false)]
[InlineData(5, 10, false)]
public static void Ctor_Empty_GetHashCodeCompare(object a, object b, bool expected)
{
var provider = new CaseInsensitiveHashCodeProvider();
Assert.Equal(provider.GetHashCode(a), provider.GetHashCode(a));
Assert.Equal(provider.GetHashCode(b), provider.GetHashCode(b));
Assert.Equal(expected, provider.GetHashCode(a) == provider.GetHashCode(b));
}
[Theory]
[InlineData("hello", "HELLO", true)]
[InlineData("hello", "hello", true)]
[InlineData("HELLO", "HELLO", true)]
[InlineData("hello", "goodbye", false)]
[InlineData(5, 5, true)]
[InlineData(10, 5, false)]
[InlineData(5, 10, false)]
public static void Ctor_Empty_ChangeCurrentCulture_GetHashCodeCompare(object a, object b, bool expected)
{
var cultureNames = new string[]
{
"cs-CZ","da-DK","de-DE","el-GR","en-US",
"es-ES","fi-FI","fr-FR","hu-HU","it-IT",
"ja-JP","ko-KR","nb-NO","nl-NL","pl-PL",
"pt-BR","pt-PT","ru-RU","sv-SE","tr-TR",
"zh-CN","zh-HK","zh-TW"
};
foreach (string cultureName in cultureNames)
{
CultureInfo newCulture;
try
{
newCulture = new CultureInfo(cultureName);
}
catch (CultureNotFoundException)
{
continue;
}
CultureInfo origCulture = CultureInfo.CurrentCulture;
try
{
CultureInfo.CurrentCulture = newCulture;
var provider = new CaseInsensitiveHashCodeProvider();
Assert.Equal(provider.GetHashCode(a), provider.GetHashCode(a));
Assert.Equal(provider.GetHashCode(b), provider.GetHashCode(b));
Assert.Equal(expected, provider.GetHashCode(a) == provider.GetHashCode(b));
}
finally
{
CultureInfo.CurrentCulture = origCulture;
}
}
}
[Theory]
[InlineData("hello", "HELLO", true)]
[InlineData("hello", "hello", true)]
[InlineData("HELLO", "HELLO", true)]
[InlineData("hello", "goodbye", false)]
[InlineData(5, 5, true)]
[InlineData(10, 5, false)]
[InlineData(5, 10, false)]
public static void Ctor_CultureInfo_ChangeCurrentCulture_GetHashCodeCompare(object a, object b, bool expected)
{
var cultureNames = new string[]
{
"cs-CZ","da-DK","de-DE","el-GR","en-US",
"es-ES","fi-FI","fr-FR","hu-HU","it-IT",
"ja-JP","ko-KR","nb-NO","nl-NL","pl-PL",
"pt-BR","pt-PT","ru-RU","sv-SE","tr-TR",
"zh-CN","zh-HK","zh-TW"
};
foreach (string cultureName in cultureNames)
{
CultureInfo culture;
try
{
culture = new CultureInfo(cultureName);
}
catch (CultureNotFoundException)
{
continue;
}
var provider = new CaseInsensitiveHashCodeProvider(culture);
Assert.Equal(provider.GetHashCode(a), provider.GetHashCode(a));
Assert.Equal(provider.GetHashCode(b), provider.GetHashCode(b));
Assert.Equal(expected, provider.GetHashCode(a) == provider.GetHashCode(b));
}
}
[Fact]
public static void Ctor_CultureInfo_GetHashCodeCompare_TurkishI()
{
var cultureNames = new string[]
{
"cs-CZ","da-DK","de-DE","el-GR","en-US",
"es-ES","fi-FI","fr-FR","hu-HU","it-IT",
"ja-JP","ko-KR","nb-NO","nl-NL","pl-PL",
"pt-BR","pt-PT","ru-RU","sv-SE","tr-TR",
"zh-CN","zh-HK","zh-TW"
};
foreach (string cultureName in cultureNames)
{
CultureInfo culture;
try
{
culture = new CultureInfo(cultureName);
}
catch (CultureNotFoundException)
{
continue;
}
var provider = new CaseInsensitiveHashCodeProvider(culture);
// Turkish has lower-case and upper-case version of the dotted "i", so the upper case of "i" (U+0069) isn't "I" (U+0049)
// but rather "İ" (U+0130)
Assert.Equal(
culture.Name != "tr-TR",
provider.GetHashCode("file") == provider.GetHashCode("FILE"));
}
}
[Fact]
public static void Ctor_CultureInfo_NullCulture_ThrowsArgumentNullException()
{
Assert.Throws<ArgumentNullException>("culture", () => new CaseInsensitiveHashCodeProvider(null));
}
[Fact]
public static void GetHashCode_NullObj_ThrowsArgumentNullException()
{
Assert.Throws<ArgumentNullException>("obj", () => new CaseInsensitiveHashCodeProvider().GetHashCode(null));
}
[ActiveIssue(11598)]
[Theory]
[InlineData("hello", "HELLO", true)]
[InlineData("hello", "hello", true)]
[InlineData("HELLO", "HELLO", true)]
[InlineData("hello", "goodbye", false)]
[InlineData(5, 5, true)]
[InlineData(10, 5, false)]
[InlineData(5, 10, false)]
public static void Default_GetHashCodeCompare(object a, object b, bool expected)
{
Assert.Equal(expected,
CaseInsensitiveHashCodeProvider.Default.GetHashCode(a) == CaseInsensitiveHashCodeProvider.Default.GetHashCode(b));
Assert.Equal(expected,
CaseInsensitiveHashCodeProvider.DefaultInvariant.GetHashCode(a) == CaseInsensitiveHashCodeProvider.DefaultInvariant.GetHashCode(b));
}
[Fact]
public static void Default_Compare_TurkishI()
{
// Turkish has lower-case and upper-case version of the dotted "i", so the upper case of "i" (U+0069) isn't "I" (U+0049)
// but rather "İ" (U+0130)
CultureInfo origCulture = CultureInfo.CurrentCulture;
try
{
CultureInfo.CurrentCulture = new CultureInfo("tr-TR");
Assert.False(CaseInsensitiveHashCodeProvider.Default.GetHashCode("file") == CaseInsensitiveHashCodeProvider.Default.GetHashCode("FILE"));
Assert.True(CaseInsensitiveHashCodeProvider.DefaultInvariant.GetHashCode("file") == CaseInsensitiveHashCodeProvider.DefaultInvariant.GetHashCode("FILE"));
CultureInfo.CurrentCulture = new CultureInfo("en-US");
Assert.True(CaseInsensitiveHashCodeProvider.Default.GetHashCode("file") == CaseInsensitiveHashCodeProvider.Default.GetHashCode("FILE"));
}
finally
{
CultureInfo.CurrentCulture = origCulture;
}
}
}
}
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