Microsoft.AspNetCore.TestHost 10.0.0

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Microsoft.AspNetCore.TestHost --version 10.0.0
                    


                    

                
NuGet\Install-Package Microsoft.AspNetCore.TestHost -Version 10.0.0
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="10.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Microsoft.AspNetCore.TestHost" Version="10.0.0" />
                    


                            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 10.0.0
                    


                    

                
#r "nuget: Microsoft.AspNetCore.TestHost, 10.0.0"
#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@10.0.0
#: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=10.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Microsoft.AspNetCore.TestHost&version=10.0.0
                    


                            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 (186)

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/b0f34d51fccc69fd334253924abd8d6853fad7aa
Rystem.Test.XUnit

Rystem is a open-source framework to improve the System namespace in .Net
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.
Volo.Abp.AspNetCore.TestBase

Package Description

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
microsoft/agent-framework
A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.
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
Version Downloads Last Updated
10.0.0 331,950 11/11/2025
10.0.0-rc.2.25502.107 92,298 10/14/2025
10.0.0-rc.1.25451.107 74,327 9/9/2025
10.0.0-preview.7.25380.108 34,476 8/12/2025
10.0.0-preview.6.25358.103 6,267 7/15/2025
10.0.0-preview.5.25277.114 34,599 6/6/2025
10.0.0-preview.4.25258.110 5,362 5/12/2025
10.0.0-preview.3.25172.1 7,137 4/10/2025
10.0.0-preview.2.25164.1 2,748 3/18/2025
10.0.0-preview.1.25120.3 113,818 2/25/2025
9.0.11 240,430 11/11/2025
9.0.10 1,356,584 10/14/2025
9.0.9 1,836,124 9/9/2025
9.0.8 1,771,085 8/5/2025
9.0.7 1,343,676 7/8/2025
9.0.6 1,670,087 6/10/2025
9.0.5 2,415,497 5/13/2025
9.0.4 2,458,779 4/8/2025
9.0.3 1,896,164 3/11/2025
9.0.2 2,045,091 2/11/2025
9.0.1 1,766,424 1/14/2025
9.0.0 4,115,018 11/12/2024
9.0.0-rc.2.24474.3 66,307 10/8/2024
9.0.0-rc.1.24452.1 44,226 9/10/2024
9.0.0-preview.7.24406.2 10,267 8/13/2024
9.0.0-preview.6.24328.4 12,844 7/9/2024
9.0.0-preview.5.24306.11 5,308 6/11/2024
9.0.0-preview.4.24267.6 3,351 5/21/2024
9.0.0-preview.3.24172.13 70,702 4/11/2024
9.0.0-preview.2.24128.4 4,954 3/12/2024
9.0.0-preview.1.24081.5 28,104 2/13/2024
8.0.22 259,951 11/11/2025
8.0.21 823,871 10/14/2025
8.0.20 1,115,191 9/9/2025
8.0.19 1,837,794 8/4/2025
8.0.18 967,713 7/8/2025
8.0.17 1,543,604 6/10/2025
8.0.16 1,456,271 5/13/2025
8.0.15 2,271,225 4/8/2025
8.0.14 2,308,862 3/11/2025
8.0.13 2,654,129 2/11/2025
8.0.12 2,502,408 1/14/2025
8.0.11 7,026,505 11/12/2024
8.0.10 9,181,626 10/8/2024
8.0.8 10,398,404 8/13/2024
8.0.7 7,395,244 7/9/2024
8.0.6 6,832,222 5/28/2024
8.0.5 2,641,785 5/14/2024
8.0.4 6,948,538 4/9/2024
8.0.3 4,430,041 3/12/2024
8.0.2 4,254,324 2/13/2024
8.0.1 4,771,266 1/9/2024
8.0.0 8,458,416 11/14/2023
8.0.0-rc.2.23480.2 65,826 10/10/2023
8.0.0-rc.1.23421.29 72,107 9/12/2023
8.0.0-preview.7.23375.9 13,727 8/8/2023
8.0.0-preview.6.23329.11 44,299 7/11/2023
8.0.0-preview.5.23302.2 13,005 6/13/2023
8.0.0-preview.4.23260.4 265,565 5/16/2023
8.0.0-preview.3.23177.8 3,663 4/11/2023
8.0.0-preview.2.23153.2 1,943 3/14/2023
8.0.0-preview.1.23112.2 41,650 2/21/2023
7.0.20 694,605 5/28/2024
7.0.19 122,057 5/14/2024
7.0.18 255,076 4/9/2024
7.0.17 493,755 3/12/2024
7.0.16 509,581 2/13/2024
7.0.15 707,961 1/9/2024
7.0.14 1,145,865 11/14/2023
7.0.13 2,479,507 10/24/2023
7.0.12 1,134,757 10/10/2023
7.0.11 3,732,540 9/12/2023
7.0.10 1,890,502 8/8/2023
7.0.9 1,436,381 7/11/2023
7.0.8 1,179,433 6/22/2023
7.0.7 610,737 6/13/2023
7.0.5 4,055,801 4/11/2023
7.0.4 2,118,209 3/14/2023
7.0.3 1,886,737 2/14/2023
7.0.2 1,936,863 1/10/2023
7.0.1 1,142,087 12/13/2022
7.0.0 3,971,214 11/7/2022
7.0.0-rc.2.22476.2 71,812 10/11/2022
7.0.0-rc.1.22427.2 23,862 9/14/2022
7.0.0-preview.7.22376.6 10,976 8/9/2022
7.0.0-preview.6.22330.3 4,181 7/12/2022
7.0.0-preview.5.22303.8 9,779 6/14/2022
7.0.0-preview.4.22251.1 2,423 5/10/2022
7.0.0-preview.3.22178.4 1,447 4/13/2022
7.0.0-preview.2.22153.2 1,232 3/14/2022
7.0.0-preview.1.22109.13 5,265 2/17/2022
6.0.36 1,655,488 11/12/2024
6.0.35 335,292 10/8/2024
6.0.33 1,434,487 8/13/2024
6.0.32 435,164 7/9/2024
6.0.31 652,840 5/28/2024
6.0.30 226,002 5/14/2024
6.0.29 908,553 4/9/2024
6.0.28 555,217 3/12/2024
6.0.27 1,042,831 2/13/2024
6.0.26 1,226,922 1/9/2024
6.0.25 2,083,275 11/14/2023
6.0.24 1,023,221 10/24/2023
6.0.23 727,419 10/10/2023
6.0.22 1,218,095 9/12/2023
6.0.21 1,843,179 8/8/2023
6.0.20 1,647,653 7/11/2023
6.0.19 1,034,463 6/22/2023
6.0.18 682,491 6/13/2023
6.0.16 3,509,120 4/11/2023
6.0.15 2,146,362 3/14/2023
6.0.14 2,465,753 2/14/2023
6.0.13 3,319,998 1/10/2023
6.0.12 3,003,346 12/13/2022
6.0.11 4,017,895 11/7/2022
6.0.10 5,632,017 10/11/2022
6.0.9 4,335,805 9/13/2022
6.0.8 5,130,601 8/9/2022
6.0.7 4,517,155 7/12/2022
6.0.6 3,453,778 6/14/2022
6.0.5 4,373,857 5/10/2022
6.0.4 4,076,181 4/11/2022
6.0.3 4,788,692 3/8/2022
6.0.2 3,955,591 2/8/2022
6.0.1 5,927,970 12/14/2021
6.0.0 7,179,115 11/8/2021
6.0.0-rc.2.21480.10 210,172 10/12/2021
6.0.0-rc.1.21452.15 177,754 9/14/2021
6.0.0-preview.7.21378.6 9,307 8/10/2021
6.0.0-preview.6.21355.2 5,474 7/14/2021
6.0.0-preview.5.21301.17 3,794 6/15/2021
6.0.0-preview.4.21253.5 6,960 5/24/2021
6.0.0-preview.3.21201.13 5,216 4/8/2021
6.0.0-preview.2.21154.6 1,254 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 1,638 2/12/2021 6.0.0-preview.1.21103.6 is deprecated because it is no longer maintained.
5.0.17 1,025,626 5/10/2022 5.0.17 is deprecated because it is no longer maintained.
5.0.16 193,235 4/11/2022 5.0.16 is deprecated because it is no longer maintained.
5.0.15 309,843 3/8/2022 5.0.15 is deprecated because it is no longer maintained.
5.0.14 293,723 2/8/2022 5.0.14 is deprecated because it is no longer maintained.
5.0.13 722,934 12/14/2021 5.0.13 is deprecated because it is no longer maintained.
5.0.12 847,030 11/7/2021 5.0.12 is deprecated because it is no longer maintained.
5.0.11 1,502,246 10/12/2021 5.0.11 is deprecated because it is no longer maintained.
5.0.10 1,526,264 9/14/2021 5.0.10 is deprecated because it is no longer maintained.
5.0.9 1,623,881 8/10/2021 5.0.9 is deprecated because it is no longer maintained.
5.0.8 1,287,510 7/13/2021 5.0.8 is deprecated because it is no longer maintained.
5.0.7 1,723,647 6/8/2021 5.0.7 is deprecated because it is no longer maintained.
5.0.6 1,385,179 5/11/2021 5.0.6 is deprecated because it is no longer maintained.
5.0.5 1,956,357 4/6/2021 5.0.5 is deprecated because it is no longer maintained.
5.0.4 1,131,436 3/9/2021 5.0.4 is deprecated because it is no longer maintained.
5.0.3 1,350,407 2/9/2021 5.0.3 is deprecated because it is no longer maintained.
5.0.2 1,349,345 1/12/2021 5.0.2 is deprecated because it is no longer maintained.
5.0.1 942,804 12/8/2020 5.0.1 is deprecated because it is no longer maintained.
5.0.0 2,375,833 11/9/2020 5.0.0 is deprecated because it is no longer maintained.
5.0.0-rc.2.20475.17 18,186 10/13/2020 5.0.0-rc.2.20475.17 is deprecated because it is no longer maintained.
5.0.0-rc.1.20451.17 185,303 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 9,625 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 4,688 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 2,362 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 1,195 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 1,850 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 2,344 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 1,137 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 1,349 3/16/2020 5.0.0-preview.1.20124.5 is deprecated because it is no longer maintained.
3.1.32 796,759 12/13/2022
3.1.31 193,319 11/8/2022
3.1.30 736,048 10/11/2022
3.1.29 142,254 9/13/2022
3.1.28 192,267 8/9/2022
3.1.27 204,911 7/12/2022
3.1.26 196,066 6/14/2022
3.1.25 260,660 5/10/2022
3.1.24 224,939 4/11/2022
3.1.23 391,389 3/8/2022
3.1.22 995,753 12/14/2021
3.1.21 791,159 11/7/2021
3.1.20 701,394 10/11/2021
3.1.19 494,548 9/14/2021
3.1.18 1,086,033 8/10/2021
3.1.17 885,372 7/13/2021
3.1.16 796,192 6/8/2021
3.1.15 795,985 5/11/2021
3.1.14 1,786,330 4/6/2021
3.1.13 1,287,712 3/9/2021
3.1.12 1,012,596 2/9/2021
3.1.11 1,219,601 1/12/2021
3.1.10 3,096,922 11/9/2020
3.1.9 3,272,849 10/13/2020
3.1.8 3,296,728 9/8/2020
3.1.7 2,525,814 8/11/2020
3.1.6 2,467,615 7/14/2020
3.1.5 3,802,188 6/9/2020
3.1.4 2,345,757 5/12/2020
3.1.3 3,927,327 3/24/2020
3.1.2 2,931,861 2/18/2020
3.1.1 3,298,114 1/14/2020
3.1.0 3,430,392 12/3/2019
3.1.0-preview3.19555.2 3,662 11/13/2019 3.1.0-preview3.19555.2 is deprecated because it is no longer maintained.
3.1.0-preview2.19528.8 1,342 11/1/2019 3.1.0-preview2.19528.8 is deprecated because it is no longer maintained.
3.1.0-preview1.19508.20 1,954 10/15/2019 3.1.0-preview1.19508.20 is deprecated because it is no longer maintained.
3.0.3 265,496 2/18/2020 3.0.3 is deprecated because it is no longer maintained.
3.0.2 110,345 1/14/2020 3.0.2 is deprecated because it is no longer maintained.
3.0.0 4,427,546 9/23/2019 3.0.0 is deprecated because it is no longer maintained.
3.0.0-rc1.19457.4 16,000 9/16/2019 3.0.0-rc1.19457.4 is deprecated because it is no longer maintained.
3.0.0-preview9.19424.4 9,324 9/4/2019 3.0.0-preview9.19424.4 is deprecated because it is no longer maintained.
3.0.0-preview8.19405.7 38,511 8/13/2019 3.0.0-preview8.19405.7 is deprecated because it is no longer maintained.
3.0.0-preview7.19365.7 14,223 7/23/2019 3.0.0-preview7.19365.7 is deprecated because it is no longer maintained.
3.0.0-preview6.19307.2 7,480 6/12/2019 3.0.0-preview6.19307.2 is deprecated because it is no longer maintained.
3.0.0-preview5-19227-01 11,909 5/6/2019 3.0.0-preview5-19227-01 is deprecated because it is no longer maintained.
3.0.0-preview4-19216-03 2,509 4/18/2019 3.0.0-preview4-19216-03 is deprecated because it is no longer maintained.
3.0.0-preview3-19153-02 2,343 3/6/2019 3.0.0-preview3-19153-02 is deprecated because it is no longer maintained.
3.0.0-preview-19075-0444 7,700 1/29/2019 3.0.0-preview-19075-0444 is deprecated because it is no longer maintained.
3.0.0-preview-18579-0056 4,626 12/3/2018 3.0.0-preview-18579-0056 is deprecated because it is no longer maintained.
2.3.0 95,380 1/14/2025
2.2.0 13,114,528 12/3/2018 2.2.0 is deprecated because it is no longer maintained.
2.2.0-preview3-35497 23,949 10/17/2018 2.2.0-preview3-35497 is deprecated because it is no longer maintained.
2.2.0-preview2-35157 13,585 9/12/2018 2.2.0-preview2-35157 is deprecated because it is no longer maintained.
2.2.0-preview1-35029 14,210 8/22/2018 2.2.0-preview1-35029 is deprecated because it is no longer maintained.
2.1.1 7,461,402 6/18/2018
2.1.0 1,670,745 5/29/2018
2.1.0-rc1-final 37,859 5/6/2018 2.1.0-rc1-final is deprecated because it is no longer maintained.
2.1.0-preview2-final 13,762 4/10/2018 2.1.0-preview2-final is deprecated because it is no longer maintained.
2.1.0-preview1-final 29,311 2/26/2018 2.1.0-preview1-final is deprecated because it is no longer maintained.
2.0.3 301,895 5/7/2018 2.0.3 is deprecated because it is no longer maintained.
2.0.2 763,033 3/13/2018 2.0.2 is deprecated because it is no longer maintained.
2.0.1 1,345,506 11/14/2017 2.0.1 is deprecated because it is no longer maintained.
2.0.0 1,043,256 8/11/2017 2.0.0 is deprecated because it is no longer maintained.
2.0.0-preview2-final 10,552 6/28/2017 2.0.0-preview2-final is deprecated because it is no longer maintained.
2.0.0-preview1-final 21,297 5/10/2017 2.0.0-preview1-final is deprecated because it is no longer maintained.
1.1.3 168,712 9/20/2017 1.1.3 is deprecated because it is no longer maintained.
1.1.2 610,807 5/9/2017 1.1.2 is deprecated because it is no longer maintained.
1.1.1 314,046 3/6/2017 1.1.1 is deprecated because it is no longer maintained.
1.1.0 402,314 11/16/2016 1.1.0 is deprecated because it is no longer maintained.
1.1.0-preview1-final 6,177 10/24/2016 1.1.0-preview1-final is deprecated because it is no longer maintained.
1.0.5 57,051 11/14/2017 1.0.5 is deprecated because it is no longer maintained.
1.0.4 37,044 9/20/2017 1.0.4 is deprecated because it is no longer maintained.
1.0.3 89,719 5/9/2017 1.0.3 is deprecated because it is no longer maintained.
1.0.2 200,122 3/6/2017 1.0.2 is deprecated because it is no longer maintained.
1.0.1 47,027 12/12/2016 1.0.1 is deprecated because it is no longer maintained.
1.0.0 337,775 6/27/2016 1.0.0 is deprecated because it is no longer maintained.
1.0.0-rc2-final 16,618 5/16/2016 1.0.0-rc2-final is deprecated because it is no longer maintained.