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
10.0.1 272,792 12/9/2025
10.0.0 910,063 11/11/2025
10.0.0-rc.2.25502.107 96,102 10/14/2025
10.0.0-rc.1.25451.107 75,663 9/9/2025
10.0.0-preview.7.25380.108 34,917 8/12/2025
10.0.0-preview.6.25358.103 6,624 7/15/2025
10.0.0-preview.5.25277.114 35,308 6/6/2025
10.0.0-preview.4.25258.110 6,133 5/12/2025
10.0.0-preview.3.25172.1 7,230 4/10/2025
10.0.0-preview.2.25164.1 2,786 3/18/2025
10.0.0-preview.1.25120.3 124,028 2/25/2025
9.0.11 639,971 11/11/2025
9.0.10 1,828,354 10/14/2025
9.0.9 2,104,278 9/9/2025
9.0.8 1,954,653 8/5/2025
9.0.7 1,492,317 7/8/2025
9.0.6 1,852,919 6/10/2025
9.0.5 2,562,214 5/13/2025
9.0.4 2,619,523 4/8/2025
9.0.3 2,026,997 3/11/2025
9.0.2 2,185,730 2/11/2025
9.0.1 1,893,421 1/14/2025
9.0.0 4,399,425 11/12/2024
9.0.0-rc.2.24474.3 67,898 10/8/2024
9.0.0-rc.1.24452.1 44,833 9/10/2024
9.0.0-preview.7.24406.2 11,036 8/13/2024
9.0.0-preview.6.24328.4 12,874 7/9/2024
9.0.0-preview.5.24306.11 5,448 6/11/2024
9.0.0-preview.4.24267.6 3,915 5/21/2024
9.0.0-preview.3.24172.13 70,903 4/11/2024
9.0.0-preview.2.24128.4 5,255 3/12/2024
9.0.0-preview.1.24081.5 28,202 2/13/2024
8.0.22 810,362 11/11/2025
8.0.21 1,159,640 10/14/2025
8.0.20 1,339,459 9/9/2025
8.0.19 2,092,631 8/4/2025
8.0.18 1,144,242 7/8/2025
8.0.17 1,719,245 6/10/2025
8.0.16 1,633,659 5/13/2025
8.0.15 2,471,773 4/8/2025
8.0.14 2,488,446 3/11/2025
8.0.13 2,860,952 2/11/2025
8.0.12 2,665,043 1/14/2025
8.0.11 7,406,320 11/12/2024
8.0.10 9,578,100 10/8/2024
8.0.8 10,785,249 8/13/2024
8.0.7 7,707,766 7/9/2024
8.0.6 7,057,677 5/28/2024
8.0.5 2,765,550 5/14/2024
8.0.4 7,223,959 4/9/2024
8.0.3 4,622,591 3/12/2024
8.0.2 4,404,851 2/13/2024
8.0.1 4,923,863 1/9/2024
8.0.0 8,919,351 11/14/2023
8.0.0-rc.2.23480.2 65,974 10/10/2023
8.0.0-rc.1.23421.29 73,209 9/12/2023
8.0.0-preview.7.23375.9 13,773 8/8/2023
8.0.0-preview.6.23329.11 44,347 7/11/2023
8.0.0-preview.5.23302.2 13,020 6/13/2023
8.0.0-preview.4.23260.4 266,680 5/16/2023
8.0.0-preview.3.23177.8 3,702 4/11/2023
8.0.0-preview.2.23153.2 1,952 3/14/2023
8.0.0-preview.1.23112.2 41,670 2/21/2023
7.0.20 787,681 5/28/2024
7.0.19 191,130 5/14/2024
7.0.18 323,938 4/9/2024
7.0.17 566,277 3/12/2024
7.0.16 582,833 2/13/2024
7.0.15 778,552 1/9/2024
7.0.14 1,219,818 11/14/2023
7.0.13 2,633,357 10/24/2023
7.0.12 1,204,049 10/10/2023
7.0.11 3,893,476 9/12/2023
7.0.10 1,966,300 8/8/2023
7.0.9 1,507,678 7/11/2023
7.0.8 1,250,856 6/22/2023
7.0.7 686,374 6/13/2023
7.0.5 4,141,700 4/11/2023
7.0.4 2,191,830 3/14/2023
7.0.3 1,964,376 2/14/2023
7.0.2 2,010,720 1/10/2023
7.0.1 1,212,446 12/13/2022
7.0.0 4,087,698 11/7/2022
7.0.0-rc.2.22476.2 72,743 10/11/2022
7.0.0-rc.1.22427.2 23,955 9/14/2022
7.0.0-preview.7.22376.6 10,993 8/9/2022
7.0.0-preview.6.22330.3 4,202 7/12/2022
7.0.0-preview.5.22303.8 9,817 6/14/2022
7.0.0-preview.4.22251.1 2,436 5/10/2022
7.0.0-preview.3.22178.4 1,461 4/13/2022
7.0.0-preview.2.22153.2 1,265 3/14/2022
7.0.0-preview.1.22109.13 5,284 2/17/2022
6.0.36 1,776,942 11/12/2024
6.0.35 409,728 10/8/2024
6.0.33 1,570,527 8/13/2024
6.0.32 510,125 7/9/2024
6.0.31 729,528 5/28/2024
6.0.30 294,822 5/14/2024
6.0.29 985,587 4/9/2024
6.0.28 626,782 3/12/2024
6.0.27 1,126,063 2/13/2024
6.0.26 1,305,354 1/9/2024
6.0.25 2,185,562 11/14/2023
6.0.24 1,097,570 10/24/2023
6.0.23 800,244 10/10/2023
6.0.22 1,296,966 9/12/2023
6.0.21 1,927,555 8/8/2023
6.0.20 1,733,748 7/11/2023
6.0.19 1,110,922 6/22/2023
6.0.18 753,560 6/13/2023
6.0.16 3,599,801 4/11/2023
6.0.15 2,228,639 3/14/2023
6.0.14 2,547,859 2/14/2023
6.0.13 3,418,106 1/10/2023
6.0.12 3,080,131 12/13/2022
6.0.11 4,113,494 11/7/2022
6.0.10 5,726,540 10/11/2022
6.0.9 4,431,500 9/13/2022
6.0.8 5,226,406 8/9/2022
6.0.7 4,602,956 7/12/2022
6.0.6 3,532,727 6/14/2022
6.0.5 4,466,538 5/10/2022
6.0.4 4,169,834 4/11/2022
6.0.3 4,887,111 3/8/2022
6.0.2 4,035,358 2/8/2022
6.0.1 6,017,766 12/14/2021
6.0.0 7,293,795 11/8/2021
6.0.0-rc.2.21480.10 210,258 10/12/2021
6.0.0-rc.1.21452.15 177,826 9/14/2021
6.0.0-preview.7.21378.6 9,325 8/10/2021
6.0.0-preview.6.21355.2 5,486 7/14/2021
6.0.0-preview.5.21301.17 3,809 6/15/2021
6.0.0-preview.4.21253.5 6,977 5/24/2021
6.0.0-preview.3.21201.13 5,236 4/8/2021
6.0.0-preview.2.21154.6 1,273 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 1,660 2/12/2021 6.0.0-preview.1.21103.6 is deprecated because it is no longer maintained.
5.0.17 1,105,726 5/10/2022 5.0.17 is deprecated because it is no longer maintained.
5.0.16 260,330 4/11/2022 5.0.16 is deprecated because it is no longer maintained.
5.0.15 377,579 3/8/2022 5.0.15 is deprecated because it is no longer maintained.
5.0.14 361,452 2/8/2022 5.0.14 is deprecated because it is no longer maintained.
5.0.13 791,204 12/14/2021 5.0.13 is deprecated because it is no longer maintained.
5.0.12 915,349 11/7/2021 5.0.12 is deprecated because it is no longer maintained.
5.0.11 1,571,197 10/12/2021 5.0.11 is deprecated because it is no longer maintained.
5.0.10 1,595,791 9/14/2021 5.0.10 is deprecated because it is no longer maintained.
5.0.9 1,691,985 8/10/2021 5.0.9 is deprecated because it is no longer maintained.
5.0.8 1,355,972 7/13/2021 5.0.8 is deprecated because it is no longer maintained.
5.0.7 1,792,917 6/8/2021 5.0.7 is deprecated because it is no longer maintained.
5.0.6 1,453,462 5/11/2021 5.0.6 is deprecated because it is no longer maintained.
5.0.5 2,025,568 4/6/2021 5.0.5 is deprecated because it is no longer maintained.
5.0.4 1,199,955 3/9/2021 5.0.4 is deprecated because it is no longer maintained.
5.0.3 1,418,267 2/9/2021 5.0.3 is deprecated because it is no longer maintained.
5.0.2 1,417,094 1/12/2021 5.0.2 is deprecated because it is no longer maintained.
5.0.1 1,010,581 12/8/2020 5.0.1 is deprecated because it is no longer maintained.
5.0.0 2,459,495 11/9/2020 5.0.0 is deprecated because it is no longer maintained.
5.0.0-rc.2.20475.17 18,232 10/13/2020 5.0.0-rc.2.20475.17 is deprecated because it is no longer maintained.
5.0.0-rc.1.20451.17 185,330 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 9,645 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 4,709 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 2,380 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 1,213 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 1,873 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 2,364 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 1,155 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 1,369 3/16/2020 5.0.0-preview.1.20124.5 is deprecated because it is no longer maintained.
3.1.32 874,319 12/13/2022
3.1.31 261,229 11/8/2022
3.1.30 804,468 10/11/2022
3.1.29 209,734 9/13/2022
3.1.28 261,552 8/9/2022
3.1.27 272,378 7/12/2022
3.1.26 263,098 6/14/2022
3.1.25 328,256 5/10/2022
3.1.24 292,321 4/11/2022
3.1.23 459,324 3/8/2022
3.1.22 1,066,654 12/14/2021
3.1.21 859,958 11/7/2021
3.1.20 772,023 10/11/2021
3.1.19 563,166 9/14/2021
3.1.18 1,154,861 8/10/2021
3.1.17 953,225 7/13/2021
3.1.16 864,158 6/8/2021
3.1.15 864,544 5/11/2021
3.1.14 1,867,559 4/6/2021
3.1.13 1,358,352 3/9/2021
3.1.12 1,080,158 2/9/2021
3.1.11 1,290,643 1/12/2021
3.1.10 3,177,537 11/9/2020
3.1.9 3,345,703 10/13/2020
3.1.8 3,368,606 9/8/2020
3.1.7 2,596,616 8/11/2020
3.1.6 2,538,588 7/14/2020
3.1.5 3,883,304 6/9/2020
3.1.4 2,416,963 5/12/2020
3.1.3 4,001,101 3/24/2020
3.1.2 3,003,348 2/18/2020
3.1.1 3,371,384 1/14/2020
3.1.0 3,502,011 12/3/2019
3.1.0-preview3.19555.2 3,703 11/13/2019 3.1.0-preview3.19555.2 is deprecated because it is no longer maintained.
3.1.0-preview2.19528.8 1,359 11/1/2019 3.1.0-preview2.19528.8 is deprecated because it is no longer maintained.
3.1.0-preview1.19508.20 1,976 10/15/2019 3.1.0-preview1.19508.20 is deprecated because it is no longer maintained.
3.0.3 336,084 2/18/2020 3.0.3 is deprecated because it is no longer maintained.
3.0.2 177,191 1/14/2020 3.0.2 is deprecated because it is no longer maintained.
3.0.0 4,513,174 9/23/2019 3.0.0 is deprecated because it is no longer maintained.
3.0.0-rc1.19457.4 16,035 9/16/2019 3.0.0-rc1.19457.4 is deprecated because it is no longer maintained.
3.0.0-preview9.19424.4 9,349 9/4/2019 3.0.0-preview9.19424.4 is deprecated because it is no longer maintained.
3.0.0-preview8.19405.7 38,646 8/13/2019 3.0.0-preview8.19405.7 is deprecated because it is no longer maintained.
3.0.0-preview7.19365.7 14,245 7/23/2019 3.0.0-preview7.19365.7 is deprecated because it is no longer maintained.
3.0.0-preview6.19307.2 7,501 6/12/2019 3.0.0-preview6.19307.2 is deprecated because it is no longer maintained.
3.0.0-preview5-19227-01 11,936 5/6/2019 3.0.0-preview5-19227-01 is deprecated because it is no longer maintained.
3.0.0-preview4-19216-03 2,538 4/18/2019 3.0.0-preview4-19216-03 is deprecated because it is no longer maintained.
3.0.0-preview3-19153-02 2,363 3/6/2019 3.0.0-preview3-19153-02 is deprecated because it is no longer maintained.
3.0.0-preview-19075-0444 7,731 1/29/2019 3.0.0-preview-19075-0444 is deprecated because it is no longer maintained.
3.0.0-preview-18579-0056 4,651 12/3/2018 3.0.0-preview-18579-0056 is deprecated because it is no longer maintained.
2.3.0 170,649 1/14/2025
2.2.0 13,220,534 12/3/2018 2.2.0 is deprecated because it is no longer maintained.
2.2.0-preview3-35497 23,978 10/17/2018 2.2.0-preview3-35497 is deprecated because it is no longer maintained.
2.2.0-preview2-35157 13,624 9/12/2018 2.2.0-preview2-35157 is deprecated because it is no longer maintained.
2.2.0-preview1-35029 14,239 8/22/2018 2.2.0-preview1-35029 is deprecated because it is no longer maintained.
2.1.1 7,548,632 6/18/2018
2.1.0 1,744,308 5/29/2018
2.1.0-rc1-final 37,922 5/6/2018 2.1.0-rc1-final is deprecated because it is no longer maintained.
2.1.0-preview2-final 13,812 4/10/2018 2.1.0-preview2-final is deprecated because it is no longer maintained.
2.1.0-preview1-final 29,401 2/26/2018 2.1.0-preview1-final is deprecated because it is no longer maintained.
2.0.3 368,804 5/7/2018 2.0.3 is deprecated because it is no longer maintained.
2.0.2 830,590 3/13/2018 2.0.2 is deprecated because it is no longer maintained.
2.0.1 1,413,579 11/14/2017 2.0.1 is deprecated because it is no longer maintained.
2.0.0 1,111,468 8/11/2017 2.0.0 is deprecated because it is no longer maintained.
2.0.0-preview2-final 10,586 6/28/2017 2.0.0-preview2-final is deprecated because it is no longer maintained.
2.0.0-preview1-final 21,330 5/10/2017 2.0.0-preview1-final is deprecated because it is no longer maintained.
1.1.3 235,549 9/20/2017 1.1.3 is deprecated because it is no longer maintained.
1.1.2 679,142 5/9/2017 1.1.2 is deprecated because it is no longer maintained.
1.1.1 380,997 3/6/2017 1.1.1 is deprecated because it is no longer maintained.
1.1.0 469,345 11/16/2016 1.1.0 is deprecated because it is no longer maintained.
1.1.0-preview1-final 6,220 10/24/2016 1.1.0-preview1-final is deprecated because it is no longer maintained.
1.0.5 123,872 11/14/2017 1.0.5 is deprecated because it is no longer maintained.
1.0.4 103,857 9/20/2017 1.0.4 is deprecated because it is no longer maintained.
1.0.3 156,532 5/9/2017 1.0.3 is deprecated because it is no longer maintained.
1.0.2 267,106 3/6/2017 1.0.2 is deprecated because it is no longer maintained.
1.0.1 113,852 12/12/2016 1.0.1 is deprecated because it is no longer maintained.
1.0.0 405,291 6/27/2016 1.0.0 is deprecated because it is no longer maintained.
1.0.0-rc2-final 16,651 5/16/2016 1.0.0-rc2-final is deprecated because it is no longer maintained.