Mark IWebHost interface as obsolete and clean up test assets

Copilot · BrennanConroy · Copilot · commit 410ec7923dfb · 2025-07-31T20:38:17.000Z
Co-authored-by: BrennanConroy &lt;7574801+BrennanConroy@users.noreply.github.com&gt;
diff --git a/src/DefaultBuilder/src/ConfigureWebHostBuilder.cs b/src/DefaultBuilder/src/ConfigureWebHostBuilder.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Diagnostics.CodeAnalysis;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Hosting.Infrastructure;
diff --git a/src/DefaultBuilder/testassets/CreateDefaultBuilderApp/Program.cs b/src/DefaultBuilder/testassets/CreateDefaultBuilderApp/Program.cs
@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
diff --git a/src/DefaultBuilder/testassets/CreateDefaultBuilderOfTApp/Program.cs b/src/DefaultBuilder/testassets/CreateDefaultBuilderOfTApp/Program.cs
@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.HostFiltering;
diff --git a/src/DefaultBuilder/testassets/DependencyInjectionApp/Program.cs b/src/DefaultBuilder/testassets/DependencyInjectionApp/Program.cs
@@ -1,8 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-#pragma warning disable CS0618 // Type or member is obsolete
-
 using System;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
diff --git a/src/Hosting/Abstractions/src/HostingAbstractionsWebHostBuilderExtensions.cs b/src/Hosting/Abstractions/src/HostingAbstractionsWebHostBuilderExtensions.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
 using System.Linq;
diff --git a/src/Hosting/Abstractions/src/IWebHost.cs b/src/Hosting/Abstractions/src/IWebHost.cs
@@ -8,6 +8,7 @@ namespace Microsoft.AspNetCore.Hosting;
 /// <summary>
 /// Represents a configured web host.
 /// </summary>
+[Obsolete("IWebHost is obsolete. Use IHost instead.")]
 public interface IWebHost : IDisposable
 {
     /// <summary>
diff --git a/src/Hosting/Abstractions/src/IWebHostBuilder.cs b/src/Hosting/Abstractions/src/IWebHostBuilder.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
diff --git a/src/Hosting/Hosting/src/GenericHost/HostingStartupWebHostBuilder.cs b/src/Hosting/Hosting/src/GenericHost/HostingStartupWebHostBuilder.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Diagnostics.CodeAnalysis;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting.Infrastructure;
diff --git a/src/Hosting/Hosting/src/GenericHost/WebHostBuilderBase.cs b/src/Hosting/Hosting/src/GenericHost/WebHostBuilderBase.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
diff --git a/src/Hosting/Hosting/src/Internal/WebHost.cs b/src/Hosting/Hosting/src/Internal/WebHost.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
diff --git a/src/Hosting/Hosting/src/WebHostExtensions.cs b/src/Hosting/Hosting/src/WebHostExtensions.cs
@@ -3,6 +3,8 @@
 
 #nullable enable
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using Microsoft.AspNetCore.Hosting.Server.Features;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
diff --git a/src/Hosting/Hosting/test/Fakes/GenericWebHost.cs b/src/Hosting/Hosting/test/Fakes/GenericWebHost.cs
@@ -1,6 +1,8 @@
 ﻿// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using Microsoft.AspNetCore.Hosting.Server;
 using Microsoft.AspNetCore.Http.Features;
 using Microsoft.Extensions.DependencyInjection;
diff --git a/src/Hosting/Hosting/test/Fakes/GenericWebHostBuilderWrapper.cs b/src/Hosting/Hosting/test/Fakes/GenericWebHostBuilderWrapper.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting.Infrastructure;
 using Microsoft.Extensions.Configuration;
diff --git a/src/Hosting/Hosting/test/WebHostTests.cs b/src/Hosting/Hosting/test/WebHostTests.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Collections;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting.Fakes;
@@ -1085,7 +1087,9 @@ public void ConfigureServices(IServiceCollection services, int gunk) { }
         public void Configure(IApplicationBuilder app) { }
     }
 
+#pragma warning disable CS0618 // Type or member is obsolete
     private IWebHost CreateHost(RequestDelegate requestDelegate)
+#pragma warning restore CS0618 // Type or member is obsolete
     {
         var builder = CreateBuilder()
             .UseFakeServer()
diff --git a/src/Hosting/TestHost/src/TestServer.cs b/src/Hosting/TestHost/src/TestServer.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Net.Http;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Hosting.Server;
diff --git a/src/Hosting/TestHost/src/WebHostBuilderExtensions.cs b/src/Hosting/TestHost/src/WebHostBuilderExtensions.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Net.Http;
diff --git a/src/Hosting/TestHost/test/ClientHandlerTests.cs b/src/Hosting/TestHost/test/ClientHandlerTests.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Net;
 using System.Net.Http;
 using System.Text;
diff --git a/src/Hosting/TestHost/test/HttpContextBuilderTests.cs b/src/Hosting/TestHost/test/HttpContextBuilderTests.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Text;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
diff --git a/src/Hosting/TestHost/test/TestClientTests.cs b/src/Hosting/TestHost/test/TestClientTests.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Net;
 using System.Net.Http;
 using System.Net.WebSockets;
diff --git a/src/Hosting/WindowsServices/src/WebHostService.cs b/src/Hosting/WindowsServices/src/WebHostService.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.ComponentModel;
 using System.ServiceProcess;
 using Microsoft.Extensions.DependencyInjection;
diff --git a/src/Hosting/WindowsServices/src/WebHostWindowsServiceExtensions.cs b/src/Hosting/WindowsServices/src/WebHostWindowsServiceExtensions.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.ServiceProcess;
 
 namespace Microsoft.AspNetCore.Hosting.WindowsServices;
diff --git a/src/Mvc/Mvc.Testing/src/WebApplicationFactory.cs b/src/Mvc/Mvc.Testing/src/WebApplicationFactory.cs
@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+#pragma warning disable CS0618 // Type or member is obsolete
+
 using System.Linq;
 using System.Net.Http;
 using System.Reflection;

Original file line number	Diff line number	Diff line change
`@@ -8,6 +8,7 @@ namespace Microsoft.AspNetCore.Hosting;`
`8`	`8`	`/// <summary>`
`9`	`9`	`/// Represents a configured web host.`
`10`	`10`	`/// </summary>`
	`11`	`+[Obsolete("IWebHost is obsolete. Use IHost instead.")]`
`11`	`12`	`public interface IWebHost : IDisposable`
`12`	`13`	`{`
`13`	`14`	`/// <summary>`