Microsoft.AspNetCore.TestHost 10.0.1

Prefix Reserved
dotnet add package Microsoft.AspNetCore.TestHost --version 10.0.1
                    
NuGet\Install-Package Microsoft.AspNetCore.TestHost -Version 10.0.1
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Microsoft.AspNetCore.TestHost" Version="10.0.1" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Microsoft.AspNetCore.TestHost" Version="10.0.1" />
                    
Directory.Packages.props
<PackageReference Include="Microsoft.AspNetCore.TestHost" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Microsoft.AspNetCore.TestHost --version 10.0.1
                    
#r "nuget: Microsoft.AspNetCore.TestHost, 10.0.1"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package Microsoft.AspNetCore.TestHost@10.0.1
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Microsoft.AspNetCore.TestHost&version=10.0.1
                    
Install as a Cake Addin
#tool nuget:?package=Microsoft.AspNetCore.TestHost&version=10.0.1
                    
Install as a Cake Tool

About

Microsoft.AspNetCore.TestHost provides an ASP.NET Core web server for testing middleware in isolation.

Key Features

  • Instantiate an app pipeline containing only the components that you need to test
  • Send custom requests to verify middleware behavior

How to Use

To use Microsoft.AspNetCore.TestHost, follow these steps:

Installation

dotnet add package Microsoft.AspNetCore.TestHost

Usage

To set up the TestServer, configure it in your test project. Here's an example:

[Fact]
public async Task MiddlewareTest_ReturnsNotFoundForRequest()
{
    // Build and start a host that uses TestServer
    using var host = await new HostBuilder()
        .ConfigureWebHost(builder =>
        {
            builder.UseTestServer()
                .ConfigureServices(services =>
                {
                    // Add any required services that the middleware uses
                    services.AddMyServices();
                })
                .Configure(app =>
                {
                    // Configure the processing pipeline to use the middleware
                    // for the test
                    app.UseMiddleware<MyMiddleware>();
                });
        })
        .StartAsync();

    var response = await host.GetTestClient().GetAsync("/");

    Assert.Equal(HttpStatusCode.NotFound, response.StatusCode);
}

Main Types

The main types provided by this package are:

  • TestServer: An IServer implementation for executing tests
  • TestServerOptions: Provides options for configuring a TestServer

Additional Documentation

For additional documentation and examples, refer to the official documentation for testing middleware in ASP.NET Core.

Feedback & Contributing

Microsoft.AspNetCore.TestHost is released as open-source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
  • net10.0

    • No dependencies.

NuGet packages (187)

Showing the top 5 NuGet packages that depend on Microsoft.AspNetCore.TestHost:

Package Downloads
Microsoft.AspNetCore.Mvc.Testing

Support for writing functional tests for MVC applications. This package was built from the source code at https://github.com/dotnet/dotnet/tree/fad253f51b461736dfd3cd9c15977bb7493becef

Rystem.Test.XUnit

Rystem is a open-source framework to improve the System namespace in .Net

Reo.Core.IntegrationTesting

Package Description

Acheve.TestHost

Achve.TestHost is a nuget package to improve TestServer experiences. For more information see http://github.com/Xabaril/Acheve.TestHost

MyTested.AspNetCore.Mvc.Abstractions

My Tested ASP.NET Core MVC common abstractions and interfaces.

GitHub repositories (225)

Showing the top 20 popular GitHub repositories that depend on Microsoft.AspNetCore.TestHost:

Repository Stars
abpframework/abp
Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.
dotnet/AspNetCore.Docs
Documentation for ASP.NET Core
aspnetboilerplate/aspnetboilerplate
ASP.NET Boilerplate - Web Application Framework
dotnet/eShop
A reference .NET application implementing an eCommerce site
dotnet/yarp
A toolkit for developing high-performance HTTP reverse proxy applications.
ThreeMammals/Ocelot
.NET API Gateway
RicoSuter/NSwag
The Swagger/OpenAPI toolchain for .NET, ASP.NET Core and TypeScript.
ldqk/Masuit.Tools
全龄段友好的C#万能工具库,码数吐司库,包含一些常用的操作类,大都是静态类,加密解密,反射操作,权重随机筛选算法,分布式短id,表达式树,linq扩展,文件压缩,多线程下载,硬件信息,字符串扩展方法,日期时间扩展操作,中国农历,大文件拷贝,图像裁剪,验证码,断点续传,集合扩展、Excel导出等常用封装。诸多功能集一身,代码量不到2MB!
FastEndpoints/FastEndpoints
A light-weight REST API development framework for ASP.NET 8 and newer.
kurrent-io/KurrentDB
KurrentDB is a database that's engineered for modern software applications and event-driven architectures. Its event-native design simplifies data modeling and preserves data integrity while the integrated streaming engine solves distributed messaging challenges and ensures data consistency.
ChilliCream/graphql-platform
Welcome to the home of the Hot Chocolate GraphQL server for .NET, the Strawberry Shake GraphQL client for .NET and Nitro the awesome Monaco based GraphQL IDE.
aspnet/Mvc
[Archived] ASP.NET Core MVC is a model view controller framework for building dynamic web sites with clean separation of concerns, including the merged MVC, Web API, and Web Pages w/ Razor. Project moved to https://github.com/aspnet/AspNetCore
domaindrivendev/Swashbuckle.AspNetCore
Swagger tools for documenting API's built on ASP.NET Core
dotnet/aspire
Aspire is the tool for code-first, extensible, observable dev and deploy.
openiddict/openiddict-core
Flexible and versatile OAuth 2.0/OpenID Connect stack for .NET
dotnetcore/Util
Util是一个.Net平台下的应用框架,旨在提升中小团队的开发能力,由工具类、分层架构基类、Ui组件,配套代码生成模板,权限等组成。
opserver/Opserver
Stack Exchange's Monitoring System
grpc/grpc-dotnet
gRPC for .NET
Xabaril/AspNetCore.Diagnostics.HealthChecks
Enterprise HealthChecks for ASP.NET Core Diagnostics Package
Ombi-app/Ombi
Want a Movie or TV Show on Plex/Emby/Jellyfin? Use Ombi!
Version Downloads Last Updated
10.0.1 324,297 12/9/2025
10.0.0 954,061 11/11/2025
10.0.0-rc.2.25502.107 96,187 10/14/2025
10.0.0-rc.1.25451.107 75,719 9/9/2025
10.0.0-preview.7.25380.108 34,988 8/12/2025
10.0.0-preview.6.25358.103 6,688 7/15/2025
10.0.0-preview.5.25277.114 35,363 6/6/2025
10.0.0-preview.4.25258.110 6,344 5/12/2025
10.0.0-preview.3.25172.1 7,235 4/10/2025
10.0.0-preview.2.25164.1 2,791 3/18/2025
10.0.0-preview.1.25120.3 124,887 2/25/2025
9.0.11 685,842 11/11/2025
9.0.10 1,870,145 10/14/2025
9.0.9 2,132,415 9/9/2025
9.0.8 1,978,555 8/5/2025
9.0.7 1,513,744 7/8/2025
9.0.6 1,875,799 6/10/2025
9.0.5 2,582,048 5/13/2025
9.0.4 2,641,212 4/8/2025
9.0.3 2,046,967 3/11/2025
9.0.2 2,207,572 2/11/2025
9.0.1 1,912,835 1/14/2025
9.0.0 4,438,669 11/12/2024
9.0.0-rc.2.24474.3 67,991 10/8/2024
9.0.0-rc.1.24452.1 44,857 9/10/2024
9.0.0-preview.7.24406.2 11,157 8/13/2024
9.0.0-preview.6.24328.4 12,875 7/9/2024
9.0.0-preview.5.24306.11 5,452 6/11/2024
9.0.0-preview.4.24267.6 3,947 5/21/2024
9.0.0-preview.3.24172.13 70,931 4/11/2024
9.0.0-preview.2.24128.4 5,281 3/12/2024
9.0.0-preview.1.24081.5 28,204 2/13/2024
8.0.22 875,944 11/11/2025
8.0.21 1,191,289 10/14/2025
8.0.20 1,365,166 9/9/2025
8.0.19 2,118,272 8/4/2025
8.0.18 1,167,788 7/8/2025
8.0.17 1,742,988 6/10/2025
8.0.16 1,657,658 5/13/2025
8.0.15 2,497,770 4/8/2025
8.0.14 2,512,801 3/11/2025
8.0.13 2,887,278 2/11/2025
8.0.12 2,686,476 1/14/2025
8.0.11 7,448,296 11/12/2024
8.0.10 9,619,982 10/8/2024
8.0.8 10,824,065 8/13/2024
8.0.7 7,748,094 7/9/2024
8.0.6 7,084,254 5/28/2024
8.0.5 2,785,458 5/14/2024
8.0.4 7,264,691 4/9/2024
8.0.3 4,648,553 3/12/2024
8.0.2 4,426,473 2/13/2024
8.0.1 4,944,619 1/9/2024
8.0.0 8,970,407 11/14/2023
8.0.0-rc.2.23480.2 65,993 10/10/2023
8.0.0-rc.1.23421.29 73,289 9/12/2023
8.0.0-preview.7.23375.9 13,780 8/8/2023
8.0.0-preview.6.23329.11 44,353 7/11/2023
8.0.0-preview.5.23302.2 13,022 6/13/2023
8.0.0-preview.4.23260.4 266,805 5/16/2023
8.0.0-preview.3.23177.8 3,706 4/11/2023
8.0.0-preview.2.23153.2 1,952 3/14/2023
8.0.0-preview.1.23112.2 41,674 2/21/2023
7.0.20 803,972 5/28/2024
7.0.19 205,571 5/14/2024
7.0.18 338,530 4/9/2024
7.0.17 581,170 3/12/2024
7.0.16 597,586 2/13/2024
7.0.15 793,050 1/9/2024
7.0.14 1,234,830 11/14/2023
7.0.13 2,660,437 10/24/2023
7.0.12 1,218,664 10/10/2023
7.0.11 3,910,767 9/12/2023
7.0.10 1,981,364 8/8/2023
7.0.9 1,522,358 7/11/2023
7.0.8 1,265,366 6/22/2023
7.0.7 701,112 6/13/2023
7.0.5 4,157,530 4/11/2023
7.0.4 2,206,419 3/14/2023
7.0.3 1,979,439 2/14/2023
7.0.2 2,025,705 1/10/2023
7.0.1 1,227,100 12/13/2022
7.0.0 4,106,706 11/7/2022
7.0.0-rc.2.22476.2 72,750 10/11/2022
7.0.0-rc.1.22427.2 23,971 9/14/2022
7.0.0-preview.7.22376.6 10,995 8/9/2022
7.0.0-preview.6.22330.3 4,204 7/12/2022
7.0.0-preview.5.22303.8 9,826 6/14/2022
7.0.0-preview.4.22251.1 2,439 5/10/2022
7.0.0-preview.3.22178.4 1,465 4/13/2022
7.0.0-preview.2.22153.2 1,270 3/14/2022
7.0.0-preview.1.22109.13 5,287 2/17/2022
6.0.36 1,796,244 11/12/2024
6.0.35 424,431 10/8/2024
6.0.33 1,590,696 8/13/2024
6.0.32 524,791 7/9/2024
6.0.31 744,649 5/28/2024
6.0.30 309,149 5/14/2024
6.0.29 1,000,548 4/9/2024
6.0.28 641,496 3/12/2024
6.0.27 1,141,400 2/13/2024
6.0.26 1,320,763 1/9/2024
6.0.25 2,201,620 11/14/2023
6.0.24 1,112,446 10/24/2023
6.0.23 814,982 10/10/2023
6.0.22 1,312,279 9/12/2023
6.0.21 1,942,977 8/8/2023
6.0.20 1,749,307 7/11/2023
6.0.19 1,126,284 6/22/2023
6.0.18 768,038 6/13/2023
6.0.16 3,616,102 4/11/2023
6.0.15 2,244,591 3/14/2023
6.0.14 2,563,109 2/14/2023
6.0.13 3,434,389 1/10/2023
6.0.12 3,095,291 12/13/2022
6.0.11 4,129,612 11/7/2022
6.0.10 5,742,761 10/11/2022
6.0.9 4,448,211 9/13/2022
6.0.8 5,243,291 8/9/2022
6.0.7 4,618,993 7/12/2022
6.0.6 3,548,047 6/14/2022
6.0.5 4,482,396 5/10/2022
6.0.4 4,186,632 4/11/2022
6.0.3 4,904,358 3/8/2022
6.0.2 4,051,010 2/8/2022
6.0.1 6,033,904 12/14/2021
6.0.0 7,313,127 11/8/2021
6.0.0-rc.2.21480.10 210,263 10/12/2021
6.0.0-rc.1.21452.15 177,835 9/14/2021
6.0.0-preview.7.21378.6 9,329 8/10/2021
6.0.0-preview.6.21355.2 5,488 7/14/2021
6.0.0-preview.5.21301.17 3,812 6/15/2021
6.0.0-preview.4.21253.5 6,980 5/24/2021
6.0.0-preview.3.21201.13 5,240 4/8/2021
6.0.0-preview.2.21154.6 1,277 3/11/2021 6.0.0-preview.2.21154.6 is deprecated because it is no longer maintained.
6.0.0-preview.1.21103.6 1,662 2/12/2021 6.0.0-preview.1.21103.6 is deprecated because it is no longer maintained.
5.0.17 1,120,751 5/10/2022 5.0.17 is deprecated because it is no longer maintained.
5.0.16 274,578 4/11/2022 5.0.16 is deprecated because it is no longer maintained.
5.0.15 391,852 3/8/2022 5.0.15 is deprecated because it is no longer maintained.
5.0.14 375,769 2/8/2022 5.0.14 is deprecated because it is no longer maintained.
5.0.13 805,543 12/14/2021 5.0.13 is deprecated because it is no longer maintained.
5.0.12 929,690 11/7/2021 5.0.12 is deprecated because it is no longer maintained.
5.0.11 1,585,933 10/12/2021 5.0.11 is deprecated because it is no longer maintained.
5.0.10 1,610,230 9/14/2021 5.0.10 is deprecated because it is no longer maintained.
5.0.9 1,706,327 8/10/2021 5.0.9 is deprecated because it is no longer maintained.
5.0.8 1,370,338 7/13/2021 5.0.8 is deprecated because it is no longer maintained.
5.0.7 1,807,456 6/8/2021 5.0.7 is deprecated because it is no longer maintained.
5.0.6 1,467,799 5/11/2021 5.0.6 is deprecated because it is no longer maintained.
5.0.5 2,040,086 4/6/2021 5.0.5 is deprecated because it is no longer maintained.
5.0.4 1,214,273 3/9/2021 5.0.4 is deprecated because it is no longer maintained.
5.0.3 1,432,560 2/9/2021 5.0.3 is deprecated because it is no longer maintained.
5.0.2 1,431,407 1/12/2021 5.0.2 is deprecated because it is no longer maintained.
5.0.1 1,024,863 12/8/2020 5.0.1 is deprecated because it is no longer maintained.
5.0.0 2,475,679 11/9/2020 5.0.0 is deprecated because it is no longer maintained.
5.0.0-rc.2.20475.17 18,237 10/13/2020 5.0.0-rc.2.20475.17 is deprecated because it is no longer maintained.
5.0.0-rc.1.20451.17 185,335 9/14/2020 5.0.0-rc.1.20451.17 is deprecated because it is no longer maintained.
5.0.0-preview.8.20414.8 9,649 8/25/2020 5.0.0-preview.8.20414.8 is deprecated because it is no longer maintained.
5.0.0-preview.7.20365.19 4,715 7/21/2020 5.0.0-preview.7.20365.19 is deprecated because it is no longer maintained.
5.0.0-preview.6.20312.15 2,385 6/25/2020 5.0.0-preview.6.20312.15 is deprecated because it is no longer maintained.
5.0.0-preview.5.20279.2 1,218 6/10/2020 5.0.0-preview.5.20279.2 is deprecated because it is no longer maintained.
5.0.0-preview.4.20257.10 1,876 5/18/2020 5.0.0-preview.4.20257.10 is deprecated because it is no longer maintained.
5.0.0-preview.3.20215.14 2,370 4/23/2020 5.0.0-preview.3.20215.14 is deprecated because it is no longer maintained.
5.0.0-preview.2.20167.3 1,164 4/2/2020 5.0.0-preview.2.20167.3 is deprecated because it is no longer maintained.
5.0.0-preview.1.20124.5 1,374 3/16/2020 5.0.0-preview.1.20124.5 is deprecated because it is no longer maintained.
3.1.32 889,627 12/13/2022
3.1.31 275,478 11/8/2022
3.1.30 818,734 10/11/2022
3.1.29 223,980 9/13/2022
3.1.28 275,793 8/9/2022
3.1.27 286,636 7/12/2022
3.1.26 277,327 6/14/2022
3.1.25 342,506 5/10/2022
3.1.24 306,568 4/11/2022
3.1.23 473,665 3/8/2022
3.1.22 1,081,278 12/14/2021
3.1.21 874,455 11/7/2021
3.1.20 786,937 10/11/2021
3.1.19 577,504 9/14/2021
3.1.18 1,169,348 8/10/2021
3.1.17 967,574 7/13/2021
3.1.16 878,495 6/8/2021
3.1.15 878,909 5/11/2021
3.1.14 1,883,718 4/6/2021
3.1.13 1,372,835 3/9/2021
3.1.12 1,094,471 2/9/2021
3.1.11 1,305,176 1/12/2021
3.1.10 3,193,675 11/9/2020
3.1.9 3,360,564 10/13/2020
3.1.8 3,383,340 9/8/2020
3.1.7 2,611,294 8/11/2020
3.1.6 2,553,282 7/14/2020
3.1.5 3,898,652 6/9/2020
3.1.4 2,431,736 5/12/2020
3.1.3 4,016,011 3/24/2020
3.1.2 3,018,270 2/18/2020
3.1.1 3,386,404 1/14/2020
3.1.0 3,516,710 12/3/2019
3.1.0-preview3.19555.2 3,709 11/13/2019 3.1.0-preview3.19555.2 is deprecated because it is no longer maintained.
3.1.0-preview2.19528.8 1,364 11/1/2019 3.1.0-preview2.19528.8 is deprecated because it is no longer maintained.
3.1.0-preview1.19508.20 1,982 10/15/2019 3.1.0-preview1.19508.20 is deprecated because it is no longer maintained.
3.0.3 350,962 2/18/2020 3.0.3 is deprecated because it is no longer maintained.
3.0.2 191,409 1/14/2020 3.0.2 is deprecated because it is no longer maintained.
3.0.0 4,530,060 9/23/2019 3.0.0 is deprecated because it is no longer maintained.
3.0.0-rc1.19457.4 16,040 9/16/2019 3.0.0-rc1.19457.4 is deprecated because it is no longer maintained.
3.0.0-preview9.19424.4 9,355 9/4/2019 3.0.0-preview9.19424.4 is deprecated because it is no longer maintained.
3.0.0-preview8.19405.7 38,651 8/13/2019 3.0.0-preview8.19405.7 is deprecated because it is no longer maintained.
3.0.0-preview7.19365.7 14,249 7/23/2019 3.0.0-preview7.19365.7 is deprecated because it is no longer maintained.
3.0.0-preview6.19307.2 7,508 6/12/2019 3.0.0-preview6.19307.2 is deprecated because it is no longer maintained.
3.0.0-preview5-19227-01 11,941 5/6/2019 3.0.0-preview5-19227-01 is deprecated because it is no longer maintained.
3.0.0-preview4-19216-03 2,544 4/18/2019 3.0.0-preview4-19216-03 is deprecated because it is no longer maintained.
3.0.0-preview3-19153-02 2,369 3/6/2019 3.0.0-preview3-19153-02 is deprecated because it is no longer maintained.
3.0.0-preview-19075-0444 7,740 1/29/2019 3.0.0-preview-19075-0444 is deprecated because it is no longer maintained.
3.0.0-preview-18579-0056 4,655 12/3/2018 3.0.0-preview-18579-0056 is deprecated because it is no longer maintained.
2.3.0 186,159 1/14/2025
2.2.0 13,239,197 12/3/2018 2.2.0 is deprecated because it is no longer maintained.
2.2.0-preview3-35497 23,986 10/17/2018 2.2.0-preview3-35497 is deprecated because it is no longer maintained.
2.2.0-preview2-35157 13,632 9/12/2018 2.2.0-preview2-35157 is deprecated because it is no longer maintained.
2.2.0-preview1-35029 14,247 8/22/2018 2.2.0-preview1-35029 is deprecated because it is no longer maintained.
2.1.1 7,565,363 6/18/2018
2.1.0 1,759,086 5/29/2018
2.1.0-rc1-final 37,932 5/6/2018 2.1.0-rc1-final is deprecated because it is no longer maintained.
2.1.0-preview2-final 13,823 4/10/2018 2.1.0-preview2-final is deprecated because it is no longer maintained.
2.1.0-preview1-final 29,418 2/26/2018 2.1.0-preview1-final is deprecated because it is no longer maintained.
2.0.3 383,034 5/7/2018 2.0.3 is deprecated because it is no longer maintained.
2.0.2 844,927 3/13/2018 2.0.2 is deprecated because it is no longer maintained.
2.0.1 1,427,931 11/14/2017 2.0.1 is deprecated because it is no longer maintained.
2.0.0 1,125,802 8/11/2017 2.0.0 is deprecated because it is no longer maintained.
2.0.0-preview2-final 10,590 6/28/2017 2.0.0-preview2-final is deprecated because it is no longer maintained.
2.0.0-preview1-final 21,334 5/10/2017 2.0.0-preview1-final is deprecated because it is no longer maintained.
1.1.3 249,771 9/20/2017 1.1.3 is deprecated because it is no longer maintained.
1.1.2 693,553 5/9/2017 1.1.2 is deprecated because it is no longer maintained.
1.1.1 395,233 3/6/2017 1.1.1 is deprecated because it is no longer maintained.
1.1.0 483,585 11/16/2016 1.1.0 is deprecated because it is no longer maintained.
1.1.0-preview1-final 6,224 10/24/2016 1.1.0-preview1-final is deprecated because it is no longer maintained.
1.0.5 138,089 11/14/2017 1.0.5 is deprecated because it is no longer maintained.
1.0.4 118,072 9/20/2017 1.0.4 is deprecated because it is no longer maintained.
1.0.3 170,750 5/9/2017 1.0.3 is deprecated because it is no longer maintained.
1.0.2 281,336 3/6/2017 1.0.2 is deprecated because it is no longer maintained.
1.0.1 128,068 12/12/2016 1.0.1 is deprecated because it is no longer maintained.
1.0.0 419,580 6/27/2016 1.0.0 is deprecated because it is no longer maintained.
1.0.0-rc2-final 16,657 5/16/2016 1.0.0-rc2-final is deprecated because it is no longer maintained.