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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.Mvc.Razor;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Localization;
namespace Microsoft.AspNetCore.Mvc.Localization;
public class MvcLocalizationServicesTest
{
[Fact]
public void AddLocalizationServices_AddsNeededServices()
{
// Arrange
var collection = new ServiceCollection();
// Act
MvcLocalizationServices.AddMvcViewLocalizationServices(
collection,
LanguageViewLocationExpanderFormat.Suffix);
// Assert
AssertContainsSingle(collection, typeof(IHtmlLocalizerFactory), typeof(HtmlLocalizerFactory));
AssertContainsSingle(collection, typeof(IHtmlLocalizer<>), typeof(HtmlLocalizer<>));
AssertContainsSingle(collection, typeof(IViewLocalizer), typeof(ViewLocalizer));
}
[Fact]
public void AddCustomLocalizers_BeforeAddLocalizationServices_AddsNeededServices()
{
// Arrange
var collection = new ServiceCollection();
// Act
collection.Add(ServiceDescriptor.Singleton(typeof(IHtmlLocalizerFactory), typeof(TestHtmlLocalizerFactory)));
collection.Add(ServiceDescriptor.Transient(typeof(IHtmlLocalizer<>), typeof(TestHtmlLocalizer<>)));
collection.Add(ServiceDescriptor.Transient(typeof(IViewLocalizer), typeof(TestViewLocalizer)));
MvcLocalizationServices.AddMvcViewLocalizationServices(
collection,
LanguageViewLocationExpanderFormat.Suffix);
AssertContainsSingle(collection, typeof(IHtmlLocalizerFactory), typeof(TestHtmlLocalizerFactory));
AssertContainsSingle(collection, typeof(IHtmlLocalizer<>), typeof(TestHtmlLocalizer<>));
AssertContainsSingle(collection, typeof(IViewLocalizer), typeof(TestViewLocalizer));
}
private void AssertContainsSingle(
IServiceCollection services,
Type serviceType,
Type implementationType)
{
var matches = services
.Where(sd =>
sd.ServiceType == serviceType &&
sd.ImplementationType == implementationType)
.ToArray();
if (matches.Length == 0)
{
Assert.Fail($"Could not find an instance of {implementationType} registered as {serviceType}");
}
else if (matches.Length > 1)
{
Assert.Fail($"Found multiple instances of {implementationType} registered as {serviceType}");
}
}
public class TestViewLocalizer : IViewLocalizer
{
public LocalizedHtmlString this[string name] => throw new NotImplementedException();
public LocalizedHtmlString this[string name, params object[] arguments]
=> throw new NotImplementedException();
public LocalizedString GetString(string name)
{
throw new NotImplementedException();
}
public LocalizedString GetString(string name, params object[] arguments)
{
throw new NotImplementedException();
}
public IEnumerable<LocalizedString> GetAllStrings(bool includeParentCultures)
{
throw new NotImplementedException();
}
[Obsolete("This method is obsolete. Use `CurrentCulture` and `CurrentUICulture` instead.")]
public IHtmlLocalizer WithCulture(CultureInfo culture)
{
throw new NotImplementedException();
}
}
public class TestHtmlLocalizer<HomeController> : IHtmlLocalizer<HomeController>
{
public LocalizedHtmlString this[string name] => throw new NotImplementedException();
public LocalizedHtmlString this[string name, params object[] arguments]
=> throw new NotImplementedException();
public LocalizedString GetString(string name)
{
throw new NotImplementedException();
}
public LocalizedString GetString(string name, params object[] arguments)
{
throw new NotImplementedException();
}
public IEnumerable<LocalizedString> GetAllStrings(bool includeParentCultures)
{
throw new NotImplementedException();
}
[Obsolete("This method is obsolete. Use `CurrentCulture` and `CurrentUICulture` instead.")]
public IHtmlLocalizer WithCulture(CultureInfo culture)
{
throw new NotImplementedException();
}
}
public class TestHtmlLocalizerFactory : IHtmlLocalizerFactory
{
public IHtmlLocalizer Create(Type resourceSource)
{
throw new NotImplementedException();
}
public IHtmlLocalizer Create(string baseName, string location)
{
throw new NotImplementedException();
}
}
}
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