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
10.0.1 434,104 12/9/2025
10.0.0 1,033,257 11/11/2025
10.0.0-rc.2.25502.107 96,373 10/14/2025
10.0.0-rc.1.25451.107 75,882 9/9/2025
10.0.0-preview.7.25380.108 35,080 8/12/2025
10.0.0-preview.6.25358.103 6,819 7/15/2025
10.0.0-preview.5.25277.114 35,521 6/6/2025
10.0.0-preview.4.25258.110 6,461 5/12/2025
10.0.0-preview.3.25172.1 7,246 4/10/2025
10.0.0-preview.2.25164.1 2,810 3/18/2025
10.0.0-preview.1.25120.3 126,639 2/25/2025
9.0.11 766,517 11/11/2025
9.0.10 1,941,728 10/14/2025
9.0.9 2,183,320 9/9/2025
9.0.8 2,020,313 8/5/2025
9.0.7 1,551,372 7/8/2025
9.0.6 1,918,359 6/10/2025
9.0.5 2,619,649 5/13/2025
9.0.4 2,681,157 4/8/2025
9.0.3 2,082,957 3/11/2025
9.0.2 2,242,868 2/11/2025
9.0.1 1,947,996 1/14/2025
9.0.0 4,506,335 11/12/2024
9.0.0-rc.2.24474.3 68,104 10/8/2024
9.0.0-rc.1.24452.1 44,988 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 5,307 3/12/2024
9.0.0-preview.1.24081.5 28,211 2/13/2024
8.0.22 991,024 11/11/2025
8.0.21 1,243,324 10/14/2025
8.0.20 1,410,971 9/9/2025
8.0.19 2,164,338 8/4/2025
8.0.18 1,211,038 7/8/2025
8.0.17 1,784,344 6/10/2025
8.0.16 1,697,343 5/13/2025
8.0.15 2,541,125 4/8/2025
8.0.14 2,554,859 3/11/2025
8.0.13 2,932,657 2/11/2025
8.0.12 2,724,415 1/14/2025
8.0.11 7,519,698 11/12/2024
8.0.10 9,688,518 10/8/2024
8.0.8 10,893,639 8/13/2024
8.0.7 7,823,563 7/9/2024
8.0.6 7,137,006 5/28/2024
8.0.5 2,822,015 5/14/2024
8.0.4 7,333,854 4/9/2024
8.0.3 4,697,322 3/12/2024
8.0.2 4,464,508 2/13/2024
8.0.1 4,981,358 1/9/2024
8.0.0 9,061,730 11/14/2023
8.0.0-rc.2.23480.2 66,048 10/10/2023
8.0.0-rc.1.23421.29 73,458 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 13,027 6/13/2023
8.0.0-preview.4.23260.4 266,972 5/16/2023
8.0.0-preview.3.23177.8 3,713 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
7.0.20 833,463 5/28/2024
7.0.19 232,083 5/14/2024
7.0.18 365,115 4/9/2024
7.0.17 608,553 3/12/2024
7.0.16 625,017 2/13/2024
7.0.15 819,979 1/9/2024
7.0.14 1,262,079 11/14/2023
7.0.13 2,711,844 10/24/2023
7.0.12 1,245,491 10/10/2023
7.0.11 3,947,852 9/12/2023
7.0.10 2,008,912 8/8/2023
7.0.9 1,549,534 7/11/2023
7.0.8 1,292,572 6/22/2023
7.0.7 728,261 6/13/2023
7.0.5 4,186,962 4/11/2023
7.0.4 2,233,507 3/14/2023
7.0.3 2,007,478 2/14/2023
7.0.2 2,053,495 1/10/2023
7.0.1 1,254,437 12/13/2022
7.0.0 4,138,980 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 11,000 8/9/2022
7.0.0-preview.6.22330.3 4,211 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 5,294 2/17/2022
6.0.36 1,830,800 11/12/2024
6.0.35 451,843 10/8/2024
6.0.33 1,626,551 8/13/2024
6.0.32 552,054 7/9/2024
6.0.31 772,077 5/28/2024
6.0.30 335,755 5/14/2024
6.0.29 1,028,285 4/9/2024
6.0.28 668,473 3/12/2024
6.0.27 1,169,682 2/13/2024
6.0.26 1,348,497 1/9/2024
6.0.25 2,231,156 11/14/2023
6.0.24 1,139,979 10/24/2023
6.0.23 842,476 10/10/2023
6.0.22 1,340,710 9/12/2023
6.0.21 1,971,568 8/8/2023
6.0.20 1,779,071 7/11/2023
6.0.19 1,154,319 6/22/2023
6.0.18 795,054 6/13/2023
6.0.16 3,645,407 4/11/2023
6.0.15 2,273,818 3/14/2023
6.0.14 2,591,843 2/14/2023
6.0.13 3,465,000 1/10/2023
6.0.12 3,123,030 12/13/2022
6.0.11 4,160,122 11/7/2022
6.0.10 5,772,187 10/11/2022
6.0.9 4,477,603 9/13/2022
6.0.8 5,273,360 8/9/2022
6.0.7 4,648,367 7/12/2022
6.0.6 3,576,131 6/14/2022
6.0.5 4,512,526 5/10/2022
6.0.4 4,217,042 4/11/2022
6.0.3 4,934,985 3/8/2022
6.0.2 4,079,630 2/8/2022
6.0.1 6,063,611 12/14/2021
6.0.0 7,347,123 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 1,148,730 5/10/2022 5.0.17 is deprecated because it is no longer maintained.
5.0.16 300,992 4/11/2022 5.0.16 is deprecated because it is no longer maintained.
5.0.15 418,335 3/8/2022 5.0.15 is deprecated because it is no longer maintained.
5.0.14 402,291 2/8/2022 5.0.14 is deprecated because it is no longer maintained.
5.0.13 832,187 12/14/2021 5.0.13 is deprecated because it is no longer maintained.
5.0.12 956,197 11/7/2021 5.0.12 is deprecated because it is no longer maintained.
5.0.11 1,613,318 10/12/2021 5.0.11 is deprecated because it is no longer maintained.
5.0.10 1,637,051 9/14/2021 5.0.10 is deprecated because it is no longer maintained.
5.0.9 1,732,905 8/10/2021 5.0.9 is deprecated because it is no longer maintained.
5.0.8 1,396,911 7/13/2021 5.0.8 is deprecated because it is no longer maintained.
5.0.7 1,834,492 6/8/2021 5.0.7 is deprecated because it is no longer maintained.
5.0.6 1,494,452 5/11/2021 5.0.6 is deprecated because it is no longer maintained.
5.0.5 2,067,006 4/6/2021 5.0.5 is deprecated because it is no longer maintained.
5.0.4 1,240,846 3/9/2021 5.0.4 is deprecated because it is no longer maintained.
5.0.3 1,459,129 2/9/2021 5.0.3 is deprecated because it is no longer maintained.
5.0.2 1,457,918 1/12/2021 5.0.2 is deprecated because it is no longer maintained.
5.0.1 1,051,334 12/8/2020 5.0.1 is deprecated because it is no longer maintained.
5.0.0 2,504,580 11/9/2020 5.0.0 is deprecated because it is no longer maintained.
5.0.0-rc.2.20475.17 18,247 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 1,883 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.
3.1.32 917,452 12/13/2022
3.1.31 301,984 11/8/2022
3.1.30 845,284 10/11/2022
3.1.29 250,378 9/13/2022
3.1.28 302,289 8/9/2022
3.1.27 313,083 7/12/2022
3.1.26 303,703 6/14/2022
3.1.25 368,920 5/10/2022
3.1.24 332,998 4/11/2022
3.1.23 500,103 3/8/2022
3.1.22 1,108,312 12/14/2021
3.1.21 901,209 11/7/2021
3.1.20 814,489 10/11/2021
3.1.19 604,027 9/14/2021
3.1.18 1,196,096 8/10/2021
3.1.17 994,242 7/13/2021
3.1.16 905,070 6/8/2021
3.1.15 905,430 5/11/2021
3.1.14 1,912,018 4/6/2021
3.1.13 1,399,618 3/9/2021
3.1.12 1,120,978 2/9/2021
3.1.11 1,332,140 1/12/2021
3.1.10 3,223,710 11/9/2020
3.1.9 3,387,868 10/13/2020
3.1.8 3,410,404 9/8/2020
3.1.7 2,638,402 8/11/2020
3.1.6 2,580,494 7/14/2020
3.1.5 3,926,973 6/9/2020
3.1.4 2,459,177 5/12/2020
3.1.3 4,043,516 3/24/2020
3.1.2 3,045,642 2/18/2020
3.1.1 3,413,849 1/14/2020
3.1.0 3,544,188 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.
3.0.3 378,611 2/18/2020 3.0.3 is deprecated because it is no longer maintained.
3.0.2 217,744 1/14/2020 3.0.2 is deprecated because it is no longer maintained.
3.0.0 4,559,909 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 7,744 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.
2.3.0 213,798 1/14/2025
2.2.0 13,271,470 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 7,595,855 6/18/2018
2.1.0 1,786,941 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 13,833 4/10/2018 2.1.0-preview2-final is deprecated because it is no longer maintained.
2.1.0-preview1-final 29,440 2/26/2018 2.1.0-preview1-final is deprecated because it is no longer maintained.
2.0.3 409,371 5/7/2018 2.0.3 is deprecated because it is no longer maintained.
2.0.2 871,351 3/13/2018 2.0.2 is deprecated because it is no longer maintained.
2.0.1 1,454,469 11/14/2017 2.0.1 is deprecated because it is no longer maintained.
2.0.0 1,152,471 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.
1.1.3 276,101 9/20/2017 1.1.3 is deprecated because it is no longer maintained.
1.1.2 720,105 5/9/2017 1.1.2 is deprecated because it is no longer maintained.
1.1.1 421,588 3/6/2017 1.1.1 is deprecated because it is no longer maintained.
1.1.0 509,930 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.
1.0.5 164,411 11/14/2017 1.0.5 is deprecated because it is no longer maintained.
1.0.4 144,395 9/20/2017 1.0.4 is deprecated because it is no longer maintained.
1.0.3 197,070 5/9/2017 1.0.3 is deprecated because it is no longer maintained.
1.0.2 307,707 3/6/2017 1.0.2 is deprecated because it is no longer maintained.
1.0.1 154,393 12/12/2016 1.0.1 is deprecated because it is no longer maintained.
1.0.0 445,993 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.