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 (188)

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
10.0.1 564,946 12/9/2025
10.0.0 1,149,842 11/11/2025
10.0.0-rc.2.25502.107 96,669 10/14/2025
10.0.0-rc.1.25451.107 76,179 9/9/2025
10.0.0-preview.7.25380.108 35,102 8/12/2025
10.0.0-preview.6.25358.103 7,005 7/15/2025
10.0.0-preview.5.25277.114 35,695 6/6/2025
10.0.0-preview.4.25258.110 6,596 5/12/2025
10.0.0-preview.3.25172.1 7,256 4/10/2025
10.0.0-preview.2.25164.1 2,826 3/18/2025
10.0.0-preview.1.25120.3 128,874 2/25/2025
9.0.11 848,856 11/11/2025
9.0.10 2,009,162 10/14/2025
9.0.9 2,230,072 9/9/2025
9.0.8 2,059,428 8/5/2025
9.0.7 1,581,218 7/8/2025
9.0.6 1,956,418 6/10/2025
9.0.5 2,652,352 5/13/2025
9.0.4 2,714,692 4/8/2025
9.0.3 2,112,200 3/11/2025
9.0.2 2,272,393 2/11/2025
9.0.1 1,975,809 1/14/2025
9.0.0 4,563,363 11/12/2024
9.0.0-rc.2.24474.3 68,396 10/8/2024
9.0.0-rc.1.24452.1 45,134 9/10/2024
9.0.0-preview.7.24406.2 11,467 8/13/2024
9.0.0-preview.6.24328.4 12,903 7/9/2024
9.0.0-preview.5.24306.11 5,465 6/11/2024
9.0.0-preview.4.24267.6 3,966 5/21/2024
9.0.0-preview.3.24172.13 71,013 4/11/2024
9.0.0-preview.2.24128.4 5,369 3/12/2024
9.0.0-preview.1.24081.5 28,218 2/13/2024
8.0.22 1,119,520 11/11/2025
8.0.21 1,300,585 10/14/2025
8.0.20 1,452,544 9/9/2025
8.0.19 2,211,142 8/4/2025
8.0.18 1,247,512 7/8/2025
8.0.17 1,822,414 6/10/2025
8.0.16 1,732,880 5/13/2025
8.0.15 2,582,084 4/8/2025
8.0.14 2,592,800 3/11/2025
8.0.13 2,971,891 2/11/2025
8.0.12 2,758,569 1/14/2025
8.0.11 7,590,492 11/12/2024
8.0.10 9,759,979 10/8/2024
8.0.8 10,962,891 8/13/2024
8.0.7 7,886,903 7/9/2024
8.0.6 7,183,608 5/28/2024
8.0.5 2,851,990 5/14/2024
8.0.4 7,402,214 4/9/2024
8.0.3 4,740,057 3/12/2024
8.0.2 4,496,687 2/13/2024
8.0.1 5,014,350 1/9/2024
8.0.0 9,152,610 11/14/2023
8.0.0-rc.2.23480.2 66,068 10/10/2023
8.0.0-rc.1.23421.29 73,611 9/12/2023
8.0.0-preview.7.23375.9 13,801 8/8/2023
8.0.0-preview.6.23329.11 44,366 7/11/2023
8.0.0-preview.5.23302.2 13,030 6/13/2023
8.0.0-preview.4.23260.4 267,133 5/16/2023
8.0.0-preview.3.23177.8 3,716 4/11/2023
8.0.0-preview.2.23153.2 1,956 3/14/2023
8.0.0-preview.1.23112.2 41,689 2/21/2023
7.0.20 856,268 5/28/2024
7.0.19 251,187 5/14/2024
7.0.18 384,070 4/9/2024
7.0.17 628,559 3/12/2024
7.0.16 644,690 2/13/2024
7.0.15 839,159 1/9/2024
7.0.14 1,281,590 11/14/2023
7.0.13 2,747,134 10/24/2023
7.0.12 1,264,439 10/10/2023
7.0.11 3,986,739 9/12/2023
7.0.10 2,029,121 8/8/2023
7.0.9 1,568,862 7/11/2023
7.0.8 1,312,042 6/22/2023
7.0.7 747,631 6/13/2023
7.0.5 4,208,917 4/11/2023
7.0.4 2,253,224 3/14/2023
7.0.3 2,028,419 2/14/2023
7.0.2 2,073,306 1/10/2023
7.0.1 1,273,698 12/13/2022
7.0.0 4,165,821 11/7/2022
7.0.0-rc.2.22476.2 73,232 10/11/2022
7.0.0-rc.1.22427.2 24,034 9/14/2022
7.0.0-preview.7.22376.6 11,002 8/9/2022
7.0.0-preview.6.22330.3 4,213 7/12/2022
7.0.0-preview.5.22303.8 9,878 6/14/2022
7.0.0-preview.4.22251.1 2,445 5/10/2022
7.0.0-preview.3.22178.4 1,472 4/13/2022
7.0.0-preview.2.22153.2 1,285 3/14/2022
7.0.0-preview.1.22109.13 5,299 2/17/2022
6.0.36 1,858,296 11/12/2024
6.0.35 471,687 10/8/2024
6.0.33 1,652,003 8/13/2024
6.0.32 571,882 7/9/2024
6.0.31 792,587 5/28/2024
6.0.30 354,650 5/14/2024
6.0.29 1,048,780 4/9/2024
6.0.28 688,218 3/12/2024
6.0.27 1,191,001 2/13/2024
6.0.26 1,369,609 1/9/2024
6.0.25 2,255,304 11/14/2023
6.0.24 1,160,012 10/24/2023
6.0.23 862,287 10/10/2023
6.0.22 1,361,199 9/12/2023
6.0.21 1,993,132 8/8/2023
6.0.20 1,801,378 7/11/2023
6.0.19 1,174,413 6/22/2023
6.0.18 814,390 6/13/2023
6.0.16 3,668,706 4/11/2023
6.0.15 2,295,392 3/14/2023
6.0.14 2,612,802 2/14/2023
6.0.13 3,488,336 1/10/2023
6.0.12 3,143,591 12/13/2022
6.0.11 4,184,144 11/7/2022
6.0.10 5,794,337 10/11/2022
6.0.9 4,500,875 9/13/2022
6.0.8 5,296,932 8/9/2022
6.0.7 4,670,255 7/12/2022
6.0.6 3,596,867 6/14/2022
6.0.5 4,534,418 5/10/2022
6.0.4 4,240,033 4/11/2022
6.0.3 4,960,067 3/8/2022
6.0.2 4,100,482 2/8/2022
6.0.1 6,086,047 12/14/2021
6.0.0 7,373,663 11/8/2021
6.0.0-rc.2.21480.10 210,282 10/12/2021
6.0.0-rc.1.21452.15 177,867 9/14/2021
6.0.0-preview.7.21378.6 9,339 8/10/2021
6.0.0-preview.6.21355.2 5,496 7/14/2021
6.0.0-preview.5.21301.17 3,821 6/15/2021
6.0.0-preview.4.21253.5 6,988 5/24/2021
6.0.0-preview.3.21201.13 5,248 4/8/2021
6.0.0-preview.2.21154.6 1,286 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 1,671 2/12/2021 6.0.0-preview.1.21103.6 is deprecated because it is no longer maintained.
5.0.17 1,169,389 5/10/2022 5.0.17 is deprecated because it is no longer maintained.
5.0.16 319,632 4/11/2022 5.0.16 is deprecated because it is no longer maintained.
5.0.15 436,991 3/8/2022 5.0.15 is deprecated because it is no longer maintained.
5.0.14 421,062 2/8/2022 5.0.14 is deprecated because it is no longer maintained.
5.0.13 850,961 12/14/2021 5.0.13 is deprecated because it is no longer maintained.
5.0.12 974,983 11/7/2021 5.0.12 is deprecated because it is no longer maintained.
5.0.11 1,632,399 10/12/2021 5.0.11 is deprecated because it is no longer maintained.
5.0.10 1,656,202 9/14/2021 5.0.10 is deprecated because it is no longer maintained.
5.0.9 1,751,759 8/10/2021 5.0.9 is deprecated because it is no longer maintained.
5.0.8 1,415,733 7/13/2021 5.0.8 is deprecated because it is no longer maintained.
5.0.7 1,853,525 6/8/2021 5.0.7 is deprecated because it is no longer maintained.
5.0.6 1,513,297 5/11/2021 5.0.6 is deprecated because it is no longer maintained.
5.0.5 2,085,978 4/6/2021 5.0.5 is deprecated because it is no longer maintained.
5.0.4 1,259,641 3/9/2021 5.0.4 is deprecated because it is no longer maintained.
5.0.3 1,477,901 2/9/2021 5.0.3 is deprecated because it is no longer maintained.
5.0.2 1,476,633 1/12/2021 5.0.2 is deprecated because it is no longer maintained.
5.0.1 1,070,020 12/8/2020 5.0.1 is deprecated because it is no longer maintained.
5.0.0 2,526,126 11/9/2020 5.0.0 is deprecated because it is no longer maintained.
5.0.0-rc.2.20475.17 18,251 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 9,661 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 4,727 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 2,392 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 1,223 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 1,888 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 2,377 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 1,172 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 1,383 3/16/2020 5.0.0-preview.1.20124.5 is deprecated because it is no longer maintained.
3.1.32 937,862 12/13/2022
3.1.31 320,966 11/8/2022
3.1.30 864,259 10/11/2022
3.1.29 269,077 9/13/2022
3.1.28 321,023 8/9/2022
3.1.27 331,736 7/12/2022
3.1.26 322,318 6/14/2022
3.1.25 387,592 5/10/2022
3.1.24 351,694 4/11/2022
3.1.23 518,827 3/8/2022
3.1.22 1,127,679 12/14/2021
3.1.21 920,241 11/7/2021
3.1.20 833,936 10/11/2021
3.1.19 622,818 9/14/2021
3.1.18 1,215,061 8/10/2021
3.1.17 1,013,084 7/13/2021
3.1.16 923,884 6/8/2021
3.1.15 924,384 5/11/2021
3.1.14 1,933,119 4/6/2021
3.1.13 1,418,926 3/9/2021
3.1.12 1,139,682 2/9/2021
3.1.11 1,351,229 1/12/2021
3.1.10 3,244,823 11/9/2020
3.1.9 3,407,396 10/13/2020
3.1.8 3,430,126 9/8/2020
3.1.7 2,657,714 8/11/2020
3.1.6 2,599,675 7/14/2020
3.1.5 3,947,184 6/9/2020
3.1.4 2,478,555 5/12/2020
3.1.3 4,063,518 3/24/2020
3.1.2 3,065,323 2/18/2020
3.1.1 3,433,992 1/14/2020
3.1.0 3,563,932 12/3/2019
3.1.0-preview3.19555.2 3,722 11/13/2019 3.1.0-preview3.19555.2 is deprecated because it is no longer maintained.
3.1.0-preview2.19528.8 1,373 11/1/2019 3.1.0-preview2.19528.8 is deprecated because it is no longer maintained.
3.1.0-preview1.19508.20 1,991 10/15/2019 3.1.0-preview1.19508.20 is deprecated because it is no longer maintained.
3.0.3 397,869 2/18/2020 3.0.3 is deprecated because it is no longer maintained.
3.0.2 236,306 1/14/2020 3.0.2 is deprecated because it is no longer maintained.
3.0.0 4,581,774 9/23/2019 3.0.0 is deprecated because it is no longer maintained.
3.0.0-rc1.19457.4 16,048 9/16/2019 3.0.0-rc1.19457.4 is deprecated because it is no longer maintained.
3.0.0-preview9.19424.4 9,365 9/4/2019 3.0.0-preview9.19424.4 is deprecated because it is no longer maintained.
3.0.0-preview8.19405.7 38,662 8/13/2019 3.0.0-preview8.19405.7 is deprecated because it is no longer maintained.
3.0.0-preview7.19365.7 14,263 7/23/2019 3.0.0-preview7.19365.7 is deprecated because it is no longer maintained.
3.0.0-preview6.19307.2 7,518 6/12/2019 3.0.0-preview6.19307.2 is deprecated because it is no longer maintained.
3.0.0-preview5-19227-01 11,947 5/6/2019 3.0.0-preview5-19227-01 is deprecated because it is no longer maintained.
3.0.0-preview4-19216-03 2,555 4/18/2019 3.0.0-preview4-19216-03 is deprecated because it is no longer maintained.
3.0.0-preview3-19153-02 2,375 3/6/2019 3.0.0-preview3-19153-02 is deprecated because it is no longer maintained.
3.0.0-preview-19075-0444 7,746 1/29/2019 3.0.0-preview-19075-0444 is deprecated because it is no longer maintained.
3.0.0-preview-18579-0056 4,664 12/3/2018 3.0.0-preview-18579-0056 is deprecated because it is no longer maintained.
2.3.9 71 1/7/2026
2.3.8 90 1/7/2026
2.3.0 234,085 1/14/2025
2.2.0 13,296,122 12/3/2018 2.2.0 is deprecated because it is no longer maintained.
2.2.0-preview3-35497 24,000 10/17/2018 2.2.0-preview3-35497 is deprecated because it is no longer maintained.
2.2.0-preview2-35157 13,655 9/12/2018 2.2.0-preview2-35157 is deprecated because it is no longer maintained.
2.2.0-preview1-35029 14,256 8/22/2018 2.2.0-preview1-35029 is deprecated because it is no longer maintained.
2.1.1 7,617,836 6/18/2018
2.1.0 1,806,764 5/29/2018
2.1.0-rc1-final 37,942 5/6/2018 2.1.0-rc1-final is deprecated because it is no longer maintained.
2.1.0-preview2-final 13,839 4/10/2018 2.1.0-preview2-final is deprecated because it is no longer maintained.
2.1.0-preview1-final 29,454 2/26/2018 2.1.0-preview1-final is deprecated because it is no longer maintained.
2.0.3 427,947 5/7/2018 2.0.3 is deprecated because it is no longer maintained.
2.0.2 890,076 3/13/2018 2.0.2 is deprecated because it is no longer maintained.
2.0.1 1,473,222 11/14/2017 2.0.1 is deprecated because it is no longer maintained.
2.0.0 1,171,284 8/11/2017 2.0.0 is deprecated because it is no longer maintained.
2.0.0-preview2-final 10,612 6/28/2017 2.0.0-preview2-final is deprecated because it is no longer maintained.
2.0.0-preview1-final 21,345 5/10/2017 2.0.0-preview1-final is deprecated because it is no longer maintained.
1.1.3 294,666 9/20/2017 1.1.3 is deprecated because it is no longer maintained.
1.1.2 738,946 5/9/2017 1.1.2 is deprecated because it is no longer maintained.
1.1.1 440,171 3/6/2017 1.1.1 is deprecated because it is no longer maintained.
1.1.0 528,509 11/16/2016 1.1.0 is deprecated because it is no longer maintained.
1.1.0-preview1-final 6,235 10/24/2016 1.1.0-preview1-final is deprecated because it is no longer maintained.
1.0.5 182,973 11/14/2017 1.0.5 is deprecated because it is no longer maintained.
1.0.4 162,953 9/20/2017 1.0.4 is deprecated because it is no longer maintained.
1.0.3 215,632 5/9/2017 1.0.3 is deprecated because it is no longer maintained.
1.0.2 326,287 3/6/2017 1.0.2 is deprecated because it is no longer maintained.
1.0.1 172,953 12/12/2016 1.0.1 is deprecated because it is no longer maintained.
1.0.0 464,652 6/27/2016 1.0.0 is deprecated because it is no longer maintained.
1.0.0-rc2-final 16,668 5/16/2016 1.0.0-rc2-final is deprecated because it is no longer maintained.