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.

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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
10.0.1 438,462 12/9/2025
10.0.0 1,036,421 11/11/2025
10.0.0-rc.2.25502.107 96,376 10/14/2025
10.0.0-rc.1.25451.107 75,885 9/9/2025
10.0.0-preview.7.25380.108 35,085 8/12/2025
10.0.0-preview.6.25358.103 6,820 7/15/2025
10.0.0-preview.5.25277.114 35,523 6/6/2025
10.0.0-preview.4.25258.110 6,475 5/12/2025
10.0.0-preview.3.25172.1 7,246 4/10/2025
10.0.0-preview.2.25164.1 2,811 3/18/2025
10.0.0-preview.1.25120.3 126,648 2/25/2025
9.0.11 769,292 11/11/2025
9.0.10 1,945,315 10/14/2025
9.0.9 2,185,379 9/9/2025
9.0.8 2,022,113 8/5/2025
9.0.7 1,553,110 7/8/2025
9.0.6 1,920,223 6/10/2025
9.0.5 2,621,404 5/13/2025
9.0.4 2,682,904 4/8/2025
9.0.3 2,084,608 3/11/2025
9.0.2 2,244,463 2/11/2025
9.0.1 1,949,679 1/14/2025
9.0.0 4,509,863 11/12/2024
9.0.0-rc.2.24474.3 68,113 10/8/2024
9.0.0-rc.1.24452.1 44,991 9/10/2024
9.0.0-preview.7.24406.2 11,368 8/13/2024
9.0.0-preview.6.24328.4 12,883 7/9/2024
9.0.0-preview.5.24306.11 5,460 6/11/2024
9.0.0-preview.4.24267.6 3,953 5/21/2024
9.0.0-preview.3.24172.13 70,970 4/11/2024
9.0.0-preview.2.24128.4 5,325 3/12/2024
9.0.0-preview.1.24081.5 28,211 2/13/2024
8.0.22 998,646 11/11/2025
8.0.21 1,245,359 10/14/2025
8.0.20 1,412,851 9/9/2025
8.0.19 2,166,099 8/4/2025
8.0.18 1,213,011 7/8/2025
8.0.17 1,786,119 6/10/2025
8.0.16 1,699,031 5/13/2025
8.0.15 2,542,918 4/8/2025
8.0.14 2,556,688 3/11/2025
8.0.13 2,934,476 2/11/2025
8.0.12 2,726,251 1/14/2025
8.0.11 7,522,773 11/12/2024
8.0.10 9,690,987 10/8/2024
8.0.8 10,896,332 8/13/2024
8.0.7 7,827,378 7/9/2024
8.0.6 7,139,210 5/28/2024
8.0.5 2,823,799 5/14/2024
8.0.4 7,336,280 4/9/2024
8.0.3 4,699,807 3/12/2024
8.0.2 4,466,276 2/13/2024
8.0.1 4,983,035 1/9/2024
8.0.0 9,065,415 11/14/2023
8.0.0-rc.2.23480.2 66,048 10/10/2023
8.0.0-rc.1.23421.29 73,463 9/12/2023
8.0.0-preview.7.23375.9 13,794 8/8/2023
8.0.0-preview.6.23329.11 44,361 7/11/2023
8.0.0-preview.5.23302.2 13,028 6/13/2023
8.0.0-preview.4.23260.4 266,972 5/16/2023
8.0.0-preview.3.23177.8 3,714 4/11/2023
8.0.0-preview.2.23153.2 1,956 3/14/2023
8.0.0-preview.1.23112.2 41,680 2/21/2023
7.0.20 835,031 5/28/2024
7.0.19 233,575 5/14/2024
7.0.18 366,603 4/9/2024
7.0.17 610,095 3/12/2024
7.0.16 626,537 2/13/2024
7.0.15 821,470 1/9/2024
7.0.14 1,263,579 11/14/2023
7.0.13 2,714,855 10/24/2023
7.0.12 1,247,024 10/10/2023
7.0.11 3,949,353 9/12/2023
7.0.10 2,010,417 8/8/2023
7.0.9 1,551,046 7/11/2023
7.0.8 1,294,073 6/22/2023
7.0.7 729,759 6/13/2023
7.0.5 4,188,552 4/11/2023
7.0.4 2,235,003 3/14/2023
7.0.3 2,009,004 2/14/2023
7.0.2 2,055,026 1/10/2023
7.0.1 1,255,935 12/13/2022
7.0.0 4,140,593 11/7/2022
7.0.0-rc.2.22476.2 72,962 10/11/2022
7.0.0-rc.1.22427.2 24,027 9/14/2022
7.0.0-preview.7.22376.6 11,001 8/9/2022
7.0.0-preview.6.22330.3 4,212 7/12/2022
7.0.0-preview.5.22303.8 9,876 6/14/2022
7.0.0-preview.4.22251.1 2,444 5/10/2022
7.0.0-preview.3.22178.4 1,471 4/13/2022
7.0.0-preview.2.22153.2 1,282 3/14/2022
7.0.0-preview.1.22109.13 5,295 2/17/2022
6.0.36 1,832,561 11/12/2024
6.0.35 453,437 10/8/2024
6.0.33 1,629,056 8/13/2024
6.0.32 553,595 7/9/2024
6.0.31 773,628 5/28/2024
6.0.30 337,243 5/14/2024
6.0.29 1,029,796 4/9/2024
6.0.28 669,975 3/12/2024
6.0.27 1,171,199 2/13/2024
6.0.26 1,350,002 1/9/2024
6.0.25 2,232,780 11/14/2023
6.0.24 1,141,522 10/24/2023
6.0.23 844,087 10/10/2023
6.0.22 1,342,264 9/12/2023
6.0.21 1,973,070 8/8/2023
6.0.20 1,780,641 7/11/2023
6.0.19 1,155,815 6/22/2023
6.0.18 796,553 6/13/2023
6.0.16 3,646,976 4/11/2023
6.0.15 2,275,421 3/14/2023
6.0.14 2,593,381 2/14/2023
6.0.13 3,466,551 1/10/2023
6.0.12 3,124,569 12/13/2022
6.0.11 4,161,894 11/7/2022
6.0.10 5,773,762 10/11/2022
6.0.9 4,479,197 9/13/2022
6.0.8 5,274,925 8/9/2022
6.0.7 4,649,939 7/12/2022
6.0.6 3,577,672 6/14/2022
6.0.5 4,514,249 5/10/2022
6.0.4 4,218,606 4/11/2022
6.0.3 4,936,582 3/8/2022
6.0.2 4,081,150 2/8/2022
6.0.1 6,065,278 12/14/2021
6.0.0 7,348,795 11/8/2021
6.0.0-rc.2.21480.10 210,280 10/12/2021
6.0.0-rc.1.21452.15 177,854 9/14/2021
6.0.0-preview.7.21378.6 9,333 8/10/2021
6.0.0-preview.6.21355.2 5,492 7/14/2021
6.0.0-preview.5.21301.17 3,818 6/15/2021
6.0.0-preview.4.21253.5 6,984 5/24/2021
6.0.0-preview.3.21201.13 5,245 4/8/2021
6.0.0-preview.2.21154.6 1,283 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 1,668 2/12/2021 6.0.0-preview.1.21103.6 is deprecated because it is no longer maintained.
5.0.17 1,150,324 5/10/2022 5.0.17 is deprecated because it is no longer maintained.
5.0.16 302,483 4/11/2022 5.0.16 is deprecated because it is no longer maintained.
5.0.15 419,825 3/8/2022 5.0.15 is deprecated because it is no longer maintained.
5.0.14 403,784 2/8/2022 5.0.14 is deprecated because it is no longer maintained.
5.0.13 833,678 12/14/2021 5.0.13 is deprecated because it is no longer maintained.
5.0.12 957,688 11/7/2021 5.0.12 is deprecated because it is no longer maintained.
5.0.11 1,614,818 10/12/2021 5.0.11 is deprecated because it is no longer maintained.
5.0.10 1,638,545 9/14/2021 5.0.10 is deprecated because it is no longer maintained.
5.0.9 1,734,399 8/10/2021 5.0.9 is deprecated because it is no longer maintained.
5.0.8 1,398,406 7/13/2021 5.0.8 is deprecated because it is no longer maintained.
5.0.7 1,836,005 6/8/2021 5.0.7 is deprecated because it is no longer maintained.
5.0.6 1,495,949 5/11/2021 5.0.6 is deprecated because it is no longer maintained.
5.0.5 2,068,509 4/6/2021 5.0.5 is deprecated because it is no longer maintained.
5.0.4 1,242,342 3/9/2021 5.0.4 is deprecated because it is no longer maintained.
5.0.3 1,460,630 2/9/2021 5.0.3 is deprecated because it is no longer maintained.
5.0.2 1,459,412 1/12/2021 5.0.2 is deprecated because it is no longer maintained.
5.0.1 1,052,828 12/8/2020 5.0.1 is deprecated because it is no longer maintained.
5.0.0 2,506,139 11/9/2020 5.0.0 is deprecated because it is no longer maintained.
5.0.0-rc.2.20475.17 18,248 10/13/2020 5.0.0-rc.2.20475.17 is deprecated because it is no longer maintained.
5.0.0-rc.1.20451.17 185,348 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 9,656 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 4,724 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 2,391 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 1,222 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 1,885 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 2,376 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 1,170 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 1,380 3/16/2020 5.0.0-preview.1.20124.5 is deprecated because it is no longer maintained.
3.1.32 918,998 12/13/2022
3.1.31 303,474 11/8/2022
3.1.30 846,777 10/11/2022
3.1.29 251,867 9/13/2022
3.1.28 303,778 8/9/2022
3.1.27 314,571 7/12/2022
3.1.26 305,194 6/14/2022
3.1.25 370,409 5/10/2022
3.1.24 334,488 4/11/2022
3.1.23 501,593 3/8/2022
3.1.22 1,109,814 12/14/2021
3.1.21 902,708 11/7/2021
3.1.20 816,012 10/11/2021
3.1.19 605,517 9/14/2021
3.1.18 1,197,608 8/10/2021
3.1.17 995,748 7/13/2021
3.1.16 906,566 6/8/2021
3.1.15 906,925 5/11/2021
3.1.14 1,913,518 4/6/2021
3.1.13 1,401,141 3/9/2021
3.1.12 1,122,470 2/9/2021
3.1.11 1,333,640 1/12/2021
3.1.10 3,225,374 11/9/2020
3.1.9 3,389,369 10/13/2020
3.1.8 3,411,933 9/8/2020
3.1.7 2,639,909 8/11/2020
3.1.6 2,582,007 7/14/2020
3.1.5 3,928,485 6/9/2020
3.1.4 2,460,727 5/12/2020
3.1.3 4,045,031 3/24/2020
3.1.2 3,047,200 2/18/2020
3.1.1 3,415,355 1/14/2020
3.1.0 3,545,693 12/3/2019
3.1.0-preview3.19555.2 3,719 11/13/2019 3.1.0-preview3.19555.2 is deprecated because it is no longer maintained.
3.1.0-preview2.19528.8 1,372 11/1/2019 3.1.0-preview2.19528.8 is deprecated because it is no longer maintained.
3.1.0-preview1.19508.20 1,988 10/15/2019 3.1.0-preview1.19508.20 is deprecated because it is no longer maintained.
3.0.3 380,181 2/18/2020 3.0.3 is deprecated because it is no longer maintained.
3.0.2 219,233 1/14/2020 3.0.2 is deprecated because it is no longer maintained.
3.0.0 4,561,465 9/23/2019 3.0.0 is deprecated because it is no longer maintained.
3.0.0-rc1.19457.4 16,044 9/16/2019 3.0.0-rc1.19457.4 is deprecated because it is no longer maintained.
3.0.0-preview9.19424.4 9,363 9/4/2019 3.0.0-preview9.19424.4 is deprecated because it is no longer maintained.
3.0.0-preview8.19405.7 38,659 8/13/2019 3.0.0-preview8.19405.7 is deprecated because it is no longer maintained.
3.0.0-preview7.19365.7 14,260 7/23/2019 3.0.0-preview7.19365.7 is deprecated because it is no longer maintained.
3.0.0-preview6.19307.2 7,516 6/12/2019 3.0.0-preview6.19307.2 is deprecated because it is no longer maintained.
3.0.0-preview5-19227-01 11,945 5/6/2019 3.0.0-preview5-19227-01 is deprecated because it is no longer maintained.
3.0.0-preview4-19216-03 2,551 4/18/2019 3.0.0-preview4-19216-03 is deprecated because it is no longer maintained.
3.0.0-preview3-19153-02 2,374 3/6/2019 3.0.0-preview3-19153-02 is deprecated because it is no longer maintained.
3.0.0-preview-19075-0444 7,745 1/29/2019 3.0.0-preview-19075-0444 is deprecated because it is no longer maintained.
3.0.0-preview-18579-0056 4,663 12/3/2018 3.0.0-preview-18579-0056 is deprecated because it is no longer maintained.
2.3.0 215,295 1/14/2025
2.2.0 13,273,070 12/3/2018 2.2.0 is deprecated because it is no longer maintained.
2.2.0-preview3-35497 23,995 10/17/2018 2.2.0-preview3-35497 is deprecated because it is no longer maintained.
2.2.0-preview2-35157 13,651 9/12/2018 2.2.0-preview2-35157 is deprecated because it is no longer maintained.
2.2.0-preview1-35029 14,253 8/22/2018 2.2.0-preview1-35029 is deprecated because it is no longer maintained.
2.1.1 7,597,399 6/18/2018
2.1.0 1,788,460 5/29/2018
2.1.0-rc1-final 37,941 5/6/2018 2.1.0-rc1-final is deprecated because it is no longer maintained.
2.1.0-preview2-final 13,834 4/10/2018 2.1.0-preview2-final is deprecated because it is no longer maintained.
2.1.0-preview1-final 29,441 2/26/2018 2.1.0-preview1-final is deprecated because it is no longer maintained.
2.0.3 410,860 5/7/2018 2.0.3 is deprecated because it is no longer maintained.
2.0.2 872,852 3/13/2018 2.0.2 is deprecated because it is no longer maintained.
2.0.1 1,455,960 11/14/2017 2.0.1 is deprecated because it is no longer maintained.
2.0.0 1,153,965 8/11/2017 2.0.0 is deprecated because it is no longer maintained.
2.0.0-preview2-final 10,597 6/28/2017 2.0.0-preview2-final is deprecated because it is no longer maintained.
2.0.0-preview1-final 21,344 5/10/2017 2.0.0-preview1-final is deprecated because it is no longer maintained.
1.1.3 277,590 9/20/2017 1.1.3 is deprecated because it is no longer maintained.
1.1.2 721,595 5/9/2017 1.1.2 is deprecated because it is no longer maintained.
1.1.1 423,079 3/6/2017 1.1.1 is deprecated because it is no longer maintained.
1.1.0 511,420 11/16/2016 1.1.0 is deprecated because it is no longer maintained.
1.1.0-preview1-final 6,233 10/24/2016 1.1.0-preview1-final is deprecated because it is no longer maintained.
1.0.5 165,900 11/14/2017 1.0.5 is deprecated because it is no longer maintained.
1.0.4 145,883 9/20/2017 1.0.4 is deprecated because it is no longer maintained.
1.0.3 198,559 5/9/2017 1.0.3 is deprecated because it is no longer maintained.
1.0.2 309,198 3/6/2017 1.0.2 is deprecated because it is no longer maintained.
1.0.1 155,882 12/12/2016 1.0.1 is deprecated because it is no longer maintained.
1.0.0 447,484 6/27/2016 1.0.0 is deprecated because it is no longer maintained.
1.0.0-rc2-final 16,664 5/16/2016 1.0.0-rc2-final is deprecated because it is no longer maintained.