Force english lang for selenium (#26158)

* Force english lang for selenium

* Specify culture in server startups

* Update Components.TestServer.csproj

Author: HaoK

src/Components/test/testassets/TestServer/AuthenticationStartup.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
@@ -39,6 +40,10 @@ public void ConfigureServices(IServiceCollection services)
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
+            var enUs = new CultureInfo("en-US");
+            CultureInfo.DefaultThreadCurrentCulture = enUs;
+            CultureInfo.DefaultThreadCurrentUICulture = enUs;
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();

src/Components/test/testassets/TestServer/Components.TestServer.csproj

@@ -2,9 +2,12 @@
 
   <PropertyGroup>
     <TargetFramework>$(DefaultNetCoreTargetFramework)</TargetFramework>
+
+    <!-- Project supports more than one language -->
+    <BlazorWebAssemblyLoadAllGlobalizationData>true</BlazorWebAssemblyLoadAllGlobalizationData>
   </PropertyGroup>
 
-   <ItemGroup>
+  <ItemGroup>
     <Reference Include="Microsoft.AspNetCore" />
     <Reference Include="Microsoft.AspNetCore.Authentication.Cookies" />
     <Reference Include="Microsoft.AspNetCore.Components.WebAssembly.Server" />

src/Components/test/testassets/TestServer/CorsStartup.cs

@@ -1,3 +1,4 @@
+using System.Globalization;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
@@ -38,6 +39,10 @@ public void ConfigureServices(IServiceCollection services)
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
+            var enUs = new CultureInfo("en-US");
+            CultureInfo.DefaultThreadCurrentCulture = enUs;
+            CultureInfo.DefaultThreadCurrentUICulture = enUs;
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();

src/Components/test/testassets/TestServer/MultipleComponents.cs

@@ -1,3 +1,4 @@
+using System.Globalization;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
@@ -27,6 +28,10 @@ public void ConfigureServices(IServiceCollection services)
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
+            var enUs = new CultureInfo("en-US");
+            CultureInfo.DefaultThreadCurrentCulture = enUs;
+            CultureInfo.DefaultThreadCurrentUICulture = enUs;
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();

src/Components/test/testassets/TestServer/PrerenderedStartup.cs

@@ -5,6 +5,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.AspNetCore.Components.WebAssembly.Services;
+using System.Globalization;
 
 namespace TestServer
 {
@@ -29,6 +30,10 @@ public void ConfigureServices(IServiceCollection services)
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
+            var enUs = new CultureInfo("en-US");
+            CultureInfo.DefaultThreadCurrentCulture = enUs;
+            CultureInfo.DefaultThreadCurrentUICulture = enUs;
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();

src/Components/test/testassets/TestServer/ServerStartup.cs

@@ -1,3 +1,4 @@
+using System.Globalization;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
@@ -25,6 +26,10 @@ public void ConfigureServices(IServiceCollection services)
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
+            var enUs = new CultureInfo("en-US");
+            CultureInfo.DefaultThreadCurrentCulture = enUs;
+            CultureInfo.DefaultThreadCurrentUICulture = enUs;
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();

src/Components/test/testassets/TestServer/Startup.cs

@@ -1,3 +1,4 @@
+using System.Globalization;
 using System.IO;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
@@ -26,6 +27,10 @@ public void ConfigureServices(IServiceCollection services)
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
+            var enUs = new CultureInfo("en-US");
+            CultureInfo.DefaultThreadCurrentCulture = enUs;
+            CultureInfo.DefaultThreadCurrentUICulture = enUs;
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();

src/Components/test/testassets/TestServer/StartupWithMapFallbackToClientSideBlazor.cs

@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System.Globalization;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
@@ -25,6 +26,10 @@ public void ConfigureServices(IServiceCollection services)
 
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
+            var enUs = new CultureInfo("en-US");
+            CultureInfo.DefaultThreadCurrentCulture = enUs;
+            CultureInfo.DefaultThreadCurrentUICulture = enUs;
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();

src/Shared/E2ETesting/BrowserFixture.cs

@@ -138,6 +138,9 @@ private async Task DeleteBrowserUserProfileDirectoriesAsync()
         {
             var opts = new ChromeOptions();
 
+            // Force language to english for tests
+            opts.AddUserProfilePreference("intl.accept_languages", "en");
+
             // Comment this out if you want to watch or interact with the browser (e.g., for debugging)
             if (!Debugger.IsAttached)
             {