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
10.0.1 328,273 12/9/2025
10.0.0 956,782 11/11/2025
10.0.0-rc.2.25502.107 96,190 10/14/2025
10.0.0-rc.1.25451.107 75,722 9/9/2025
10.0.0-preview.7.25380.108 34,991 8/12/2025
10.0.0-preview.6.25358.103 6,690 7/15/2025
10.0.0-preview.5.25277.114 35,366 6/6/2025
10.0.0-preview.4.25258.110 6,367 5/12/2025
10.0.0-preview.3.25172.1 7,237 4/10/2025
10.0.0-preview.2.25164.1 2,791 3/18/2025
10.0.0-preview.1.25120.3 124,904 2/25/2025
9.0.11 688,576 11/11/2025
9.0.10 1,871,916 10/14/2025
9.0.9 2,134,009 9/9/2025
9.0.8 1,980,057 8/5/2025
9.0.7 1,515,120 7/8/2025
9.0.6 1,877,115 6/10/2025
9.0.5 2,583,336 5/13/2025
9.0.4 2,642,568 4/8/2025
9.0.3 2,048,210 3/11/2025
9.0.2 2,208,863 2/11/2025
9.0.1 1,914,057 1/14/2025
9.0.0 4,441,135 11/12/2024
9.0.0-rc.2.24474.3 67,991 10/8/2024
9.0.0-rc.1.24452.1 44,858 9/10/2024
9.0.0-preview.7.24406.2 11,159 8/13/2024
9.0.0-preview.6.24328.4 12,875 7/9/2024
9.0.0-preview.5.24306.11 5,453 6/11/2024
9.0.0-preview.4.24267.6 3,950 5/21/2024
9.0.0-preview.3.24172.13 70,933 4/11/2024
9.0.0-preview.2.24128.4 5,283 3/12/2024
9.0.0-preview.1.24081.5 28,206 2/13/2024
8.0.22 878,867 11/11/2025
8.0.21 1,192,976 10/14/2025
8.0.20 1,366,623 9/9/2025
8.0.19 2,119,633 8/4/2025
8.0.18 1,169,415 7/8/2025
8.0.17 1,744,277 6/10/2025
8.0.16 1,658,914 5/13/2025
8.0.15 2,499,254 4/8/2025
8.0.14 2,514,233 3/11/2025
8.0.13 2,888,599 2/11/2025
8.0.12 2,687,781 1/14/2025
8.0.11 7,450,371 11/12/2024
8.0.10 9,622,021 10/8/2024
8.0.8 10,826,011 8/13/2024
8.0.7 7,751,221 7/9/2024
8.0.6 7,085,741 5/28/2024
8.0.5 2,786,698 5/14/2024
8.0.4 7,268,727 4/9/2024
8.0.3 4,650,107 3/12/2024
8.0.2 4,427,791 2/13/2024
8.0.1 4,945,915 1/9/2024
8.0.0 8,973,219 11/14/2023
8.0.0-rc.2.23480.2 65,994 10/10/2023
8.0.0-rc.1.23421.29 73,290 9/12/2023
8.0.0-preview.7.23375.9 13,782 8/8/2023
8.0.0-preview.6.23329.11 44,354 7/11/2023
8.0.0-preview.5.23302.2 13,023 6/13/2023
8.0.0-preview.4.23260.4 266,807 5/16/2023
8.0.0-preview.3.23177.8 3,706 4/11/2023
8.0.0-preview.2.23153.2 1,953 3/14/2023
8.0.0-preview.1.23112.2 41,674 2/21/2023
7.0.20 805,109 5/28/2024
7.0.19 206,694 5/14/2024
7.0.18 339,654 4/9/2024
7.0.17 582,343 3/12/2024
7.0.16 598,708 2/13/2024
7.0.15 794,169 1/9/2024
7.0.14 1,235,953 11/14/2023
7.0.13 2,663,055 10/24/2023
7.0.12 1,219,790 10/10/2023
7.0.11 3,911,886 9/12/2023
7.0.10 1,982,498 8/8/2023
7.0.9 1,523,538 7/11/2023
7.0.8 1,266,492 6/22/2023
7.0.7 702,276 6/13/2023
7.0.5 4,158,723 4/11/2023
7.0.4 2,207,543 3/14/2023
7.0.3 1,980,591 2/14/2023
7.0.2 2,026,877 1/10/2023
7.0.1 1,228,294 12/13/2022
7.0.0 4,107,996 11/7/2022
7.0.0-rc.2.22476.2 72,751 10/11/2022
7.0.0-rc.1.22427.2 23,972 9/14/2022
7.0.0-preview.7.22376.6 10,996 8/9/2022
7.0.0-preview.6.22330.3 4,205 7/12/2022
7.0.0-preview.5.22303.8 9,827 6/14/2022
7.0.0-preview.4.22251.1 2,441 5/10/2022
7.0.0-preview.3.22178.4 1,466 4/13/2022
7.0.0-preview.2.22153.2 1,270 3/14/2022
7.0.0-preview.1.22109.13 5,289 2/17/2022
6.0.36 1,797,547 11/12/2024
6.0.35 425,613 10/8/2024
6.0.33 1,591,912 8/13/2024
6.0.32 525,930 7/9/2024
6.0.31 745,795 5/28/2024
6.0.30 310,271 5/14/2024
6.0.29 1,001,674 4/9/2024
6.0.28 642,641 3/12/2024
6.0.27 1,142,535 2/13/2024
6.0.26 1,321,897 1/9/2024
6.0.25 2,202,814 11/14/2023
6.0.24 1,113,573 10/24/2023
6.0.23 816,116 10/10/2023
6.0.22 1,313,471 9/12/2023
6.0.21 1,944,117 8/8/2023
6.0.20 1,750,453 7/11/2023
6.0.19 1,127,447 6/22/2023
6.0.18 769,167 6/13/2023
6.0.16 3,617,287 4/11/2023
6.0.15 2,245,756 3/14/2023
6.0.14 2,564,382 2/14/2023
6.0.13 3,435,749 1/10/2023
6.0.12 3,096,435 12/13/2022
6.0.11 4,130,758 11/7/2022
6.0.10 5,743,966 10/11/2022
6.0.9 4,449,406 9/13/2022
6.0.8 5,244,471 8/9/2022
6.0.7 4,620,152 7/12/2022
6.0.6 3,549,187 6/14/2022
6.0.5 4,483,920 5/10/2022
6.0.4 4,187,791 4/11/2022
6.0.3 4,905,530 3/8/2022
6.0.2 4,052,147 2/8/2022
6.0.1 6,035,058 12/14/2021
6.0.0 7,314,391 11/8/2021
6.0.0-rc.2.21480.10 210,264 10/12/2021
6.0.0-rc.1.21452.15 177,837 9/14/2021
6.0.0-preview.7.21378.6 9,330 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 6,982 5/24/2021
6.0.0-preview.3.21201.13 5,240 4/8/2021
6.0.0-preview.2.21154.6 1,278 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 1,663 2/12/2021 6.0.0-preview.1.21103.6 is deprecated because it is no longer maintained.
5.0.17 1,121,958 5/10/2022 5.0.17 is deprecated because it is no longer maintained.
5.0.16 275,699 4/11/2022 5.0.16 is deprecated because it is no longer maintained.
5.0.15 392,975 3/8/2022 5.0.15 is deprecated because it is no longer maintained.
5.0.14 376,894 2/8/2022 5.0.14 is deprecated because it is no longer maintained.
5.0.13 806,668 12/14/2021 5.0.13 is deprecated because it is no longer maintained.
5.0.12 930,810 11/7/2021 5.0.12 is deprecated because it is no longer maintained.
5.0.11 1,587,096 10/12/2021 5.0.11 is deprecated because it is no longer maintained.
5.0.10 1,611,374 9/14/2021 5.0.10 is deprecated because it is no longer maintained.
5.0.9 1,707,451 8/10/2021 5.0.9 is deprecated because it is no longer maintained.
5.0.8 1,371,469 7/13/2021 5.0.8 is deprecated because it is no longer maintained.
5.0.7 1,808,598 6/8/2021 5.0.7 is deprecated because it is no longer maintained.
5.0.6 1,468,921 5/11/2021 5.0.6 is deprecated because it is no longer maintained.
5.0.5 2,041,231 4/6/2021 5.0.5 is deprecated because it is no longer maintained.
5.0.4 1,215,403 3/9/2021 5.0.4 is deprecated because it is no longer maintained.
5.0.3 1,433,692 2/9/2021 5.0.3 is deprecated because it is no longer maintained.
5.0.2 1,432,536 1/12/2021 5.0.2 is deprecated because it is no longer maintained.
5.0.1 1,025,986 12/8/2020 5.0.1 is deprecated because it is no longer maintained.
5.0.0 2,476,826 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.1.20451.17 185,336 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 9,651 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 4,716 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 2,386 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 1,877 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 2,371 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.
3.1.32 890,777 12/13/2022
3.1.31 276,601 11/8/2022
3.1.30 819,855 10/11/2022
3.1.29 225,102 9/13/2022
3.1.28 276,914 8/9/2022
3.1.27 287,755 7/12/2022
3.1.26 278,449 6/14/2022
3.1.25 343,629 5/10/2022
3.1.24 307,691 4/11/2022
3.1.23 474,787 3/8/2022
3.1.22 1,082,406 12/14/2021
3.1.21 875,583 11/7/2021
3.1.20 788,109 10/11/2021
3.1.19 578,627 9/14/2021
3.1.18 1,170,472 8/10/2021
3.1.17 968,705 7/13/2021
3.1.16 879,619 6/8/2021
3.1.15 880,035 5/11/2021
3.1.14 1,884,854 4/6/2021
3.1.13 1,373,962 3/9/2021
3.1.12 1,095,596 2/9/2021
3.1.11 1,306,299 1/12/2021
3.1.10 3,194,970 11/9/2020
3.1.9 3,361,702 10/13/2020
3.1.8 3,384,471 9/8/2020
3.1.7 2,612,423 8/11/2020
3.1.6 2,554,443 7/14/2020
3.1.5 3,899,815 6/9/2020
3.1.4 2,432,910 5/12/2020
3.1.3 4,017,140 3/24/2020
3.1.2 3,019,400 2/18/2020
3.1.1 3,387,528 1/14/2020
3.1.0 3,517,845 12/3/2019
3.1.0-preview3.19555.2 3,711 11/13/2019 3.1.0-preview3.19555.2 is deprecated because it is no longer maintained.
3.1.0-preview2.19528.8 1,366 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.
3.0.3 352,164 2/18/2020 3.0.3 is deprecated because it is no longer maintained.
3.0.2 192,527 1/14/2020 3.0.2 is deprecated because it is no longer maintained.
3.0.0 4,531,203 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 9,356 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 14,251 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 11,942 5/6/2019 3.0.0-preview5-19227-01 is deprecated because it is no longer maintained.
3.0.0-preview4-19216-03 2,546 4/18/2019 3.0.0-preview4-19216-03 is deprecated because it is no longer maintained.
3.0.0-preview3-19153-02 2,370 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 4,656 12/3/2018 3.0.0-preview-18579-0056 is deprecated because it is no longer maintained.
2.3.0 187,285 1/14/2025
2.2.0 13,240,479 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 13,633 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 7,566,521 6/18/2018
2.1.0 1,760,228 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 13,825 4/10/2018 2.1.0-preview2-final is deprecated because it is no longer maintained.
2.1.0-preview1-final 29,422 2/26/2018 2.1.0-preview1-final is deprecated because it is no longer maintained.
2.0.3 384,153 5/7/2018 2.0.3 is deprecated because it is no longer maintained.
2.0.2 846,049 3/13/2018 2.0.2 is deprecated because it is no longer maintained.
2.0.1 1,429,052 11/14/2017 2.0.1 is deprecated because it is no longer maintained.
2.0.0 1,126,976 8/11/2017 2.0.0 is deprecated because it is no longer maintained.
2.0.0-preview2-final 10,592 6/28/2017 2.0.0-preview2-final is deprecated because it is no longer maintained.
2.0.0-preview1-final 21,336 5/10/2017 2.0.0-preview1-final is deprecated because it is no longer maintained.
1.1.3 250,891 9/20/2017 1.1.3 is deprecated because it is no longer maintained.
1.1.2 694,678 5/9/2017 1.1.2 is deprecated because it is no longer maintained.
1.1.1 396,356 3/6/2017 1.1.1 is deprecated because it is no longer maintained.
1.1.0 484,705 11/16/2016 1.1.0 is deprecated because it is no longer maintained.
1.1.0-preview1-final 6,226 10/24/2016 1.1.0-preview1-final is deprecated because it is no longer maintained.
1.0.5 139,208 11/14/2017 1.0.5 is deprecated because it is no longer maintained.
1.0.4 119,192 9/20/2017 1.0.4 is deprecated because it is no longer maintained.
1.0.3 171,869 5/9/2017 1.0.3 is deprecated because it is no longer maintained.
1.0.2 282,458 3/6/2017 1.0.2 is deprecated because it is no longer maintained.
1.0.1 129,188 12/12/2016 1.0.1 is deprecated because it is no longer maintained.
1.0.0 420,716 6/27/2016 1.0.0 is deprecated because it is no longer maintained.
1.0.0-rc2-final 16,658 5/16/2016 1.0.0-rc2-final is deprecated because it is no longer maintained.