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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.
using System.Globalization;
using Microsoft.AspNetCore.Builder;
namespace Microsoft.AspNetCore.Localization;
public class RequestLocalizationOptionsTest : IDisposable
{
private readonly CultureInfo _initialCulture;
private readonly CultureInfo _initialUICulture;
public RequestLocalizationOptionsTest()
{
_initialCulture = CultureInfo.CurrentCulture;
_initialUICulture = CultureInfo.CurrentUICulture;
}
[Fact]
public void DefaultRequestCulture_DefaultsToCurrentCulture()
{
// Arrange/Act
var options = new RequestLocalizationOptions();
// Assert
Assert.NotNull(options.DefaultRequestCulture);
Assert.Equal(CultureInfo.CurrentCulture, options.DefaultRequestCulture.Culture);
Assert.Equal(CultureInfo.CurrentUICulture, options.DefaultRequestCulture.UICulture);
}
[Fact]
public void DefaultRequestCulture_DefaultsToCurrentCultureWhenExplicitlySet()
{
// Arrange
var explicitCulture = new CultureInfo("fr-FR");
CultureInfo.CurrentCulture = explicitCulture;
CultureInfo.CurrentUICulture = explicitCulture;
// Act
var options = new RequestLocalizationOptions();
// Assert
Assert.Equal(explicitCulture, options.DefaultRequestCulture.Culture);
Assert.Equal(explicitCulture, options.DefaultRequestCulture.UICulture);
}
[Fact]
public void DefaultRequestCulture_ThrowsWhenTryingToSetToNull()
{
// Arrange
var options = new RequestLocalizationOptions();
// Act/Assert
Assert.Throws<ArgumentNullException>(() => options.DefaultRequestCulture = null);
}
[Fact]
public void SupportedCultures_DefaultsToCurrentCulture()
{
// Arrange/Act
var options = new RequestLocalizationOptions();
// Assert
Assert.Collection(options.SupportedCultures, item => Assert.Equal(CultureInfo.CurrentCulture, item));
Assert.Collection(options.SupportedUICultures, item => Assert.Equal(CultureInfo.CurrentUICulture, item));
}
[Fact]
public void SupportedCultures_DefaultsToCurrentCultureWhenExplicitlySet()
{
// Arrange
var explicitCulture = new CultureInfo("fr-FR");
CultureInfo.CurrentCulture = explicitCulture;
CultureInfo.CurrentUICulture = explicitCulture;
// Act
var options = new RequestLocalizationOptions();
// Assert
Assert.Collection(options.SupportedCultures, item => Assert.Equal(explicitCulture, item));
Assert.Collection(options.SupportedUICultures, item => Assert.Equal(explicitCulture, item));
}
[Fact]
public void BuilderAPIs_AddSupportedCultures()
{
// Arrange
var supportedCultures = new[] { "en-US", "ar-YE" };
// Act
var options = new RequestLocalizationOptions()
.AddSupportedCultures(supportedCultures);
// Assert
Assert.Equal(supportedCultures, options.SupportedCultures.Select(c => c.Name));
}
[Fact]
public void BuilderAPIs_AddSupportedUICultures()
{
// Arrange
var supportedUICultures = new[] { "en-US", "ar-YE" };
// Act
var options = new RequestLocalizationOptions()
.AddSupportedUICultures(supportedUICultures);
// Assert
Assert.Equal(supportedUICultures, options.SupportedUICultures.Select(c => c.Name));
}
[Fact]
public void BuilderAPIs_SetDefaultCulture()
{
// Arrange
var defaultCulture = "ar-YE";
// Act
var options = new RequestLocalizationOptions()
.SetDefaultCulture(defaultCulture);
// Assert
Assert.Equal(defaultCulture, options.DefaultRequestCulture.Culture.Name);
}
public void Dispose()
{
CultureInfo.CurrentCulture = _initialCulture;
CultureInfo.CurrentUICulture = _initialUICulture;
}
}
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