⚗️ experimental change to avoid potential deadlock

[gimlichael]

PR Classification

Code improvement to introduce asynchronous host starting (and hopefully prevent deadlock as highlighted in this article.

PR Summary

Modified the AspNetCoreHostFixture class to start the host asynchronously.

• Added System.Threading.Tasks namespace,
• Changed host initialization to use Task.Run(() => host.StartAsync()).GetAwaiter().GetResult() instead of hb.Start().

Reason for change paired with referenced article: https://github.com/dotnet/runtime/blob/main/src/libraries/Microsoft.Extensions.Hosting.Abstractions/src/HostingAbstractionsHostBuilderExtensions.cs

Summary by CodeRabbit

• New Features

  • Introduced asynchronous host startup for improved scalability and responsiveness in ASP.NET Core applications.

• Bug Fixes

  • Removed the Meziantou.Xunit.ParallelTestFramework package, potentially altering the testing strategy.

• Chores

  • Deleted xunit.runner.json configuration file, indicating a shift in test environment management.

[coderabbitai]

Walkthrough

The changes involve modifications to the AspNetCoreHostFixture class for starting the ASP.NET Core host asynchronously, enhancing scalability. Additionally, the project file for functional tests has had a package reference removed, indicating a shift in testing strategy. The xunit.runner.json configuration file was deleted, suggesting a change in how the testing environment is managed, likely reverting to default settings.

Changes

Files	Change Summary
src/Cuemon.Extensions.Xunit.Hosting.AspNetCore/AspNetCoreHostFixture.cs	Modified the ConfigureHost method to start the ASP.NET Core host asynchronously using host.StartAsync(), replacing the direct call to Start(). Added using System.Threading.Tasks;.
test/Cuemon.AspNetCore.Mvc.FunctionalTests/Cuemon.AspNetCore.Mvc.FunctionalTests.csproj	Removed the package reference to Meziantou.Xunit.ParallelTestFramework, version 2.3.0.
test/Cuemon.AspNetCore.Mvc.Tests/xunit.runner.json	Deleted the xunit.runner.json configuration file, which included settings for shadow copying assemblies during tests.

Sequence Diagram(s)

sequenceDiagram
    participant Test as Test Code
    participant HostBuilder as Host Builder
    participant Host as ASP.NET Core Host

    Test->>HostBuilder: ConfigureHost()
    HostBuilder->>HostBuilder: Build()
    HostBuilder->>Host: StartAsync()
    Host-->>HostBuilder: Host Started
    HostBuilder-->>Test: Host Ready

Loading

🐰 In the meadow, changes bloom,
As hosts now start without a gloom.
Tests run faster, oh what a sight,
With every hop, we reach new height!
Let's cheer for code, both bold and bright! 🌼

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Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between cf9609d and fb1aa78.

Files selected for processing (3)

• src/Cuemon.Extensions.Xunit.Hosting.AspNetCore/AspNetCoreHostFixture.cs (2 hunks)
• test/Cuemon.AspNetCore.Mvc.FunctionalTests/Cuemon.AspNetCore.Mvc.FunctionalTests.csproj (0 hunks)
• test/Cuemon.AspNetCore.Mvc.Tests/xunit.runner.json (0 hunks)

Files not reviewed due to no reviewable changes (2)

• test/Cuemon.AspNetCore.Mvc.FunctionalTests/Cuemon.AspNetCore.Mvc.FunctionalTests.csproj
• test/Cuemon.AspNetCore.Mvc.Tests/xunit.runner.json

Additional comments not posted (4)

src/Cuemon.Extensions.Xunit.Hosting.AspNetCore/AspNetCoreHostFixture.cs (4)

3-3: LGTM!

The System.Threading.Tasks namespace is correctly added to support the asynchronous host starting changes.

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92-92: LGTM!

The host is correctly built using hb.Build() and assigned to a new variable host before starting it asynchronously.

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93-93: Great work on implementing the asynchronous host starting!

The host is correctly started asynchronously using Task.Run(() => host.StartAsync()).GetAwaiter().GetResult(). This approach ensures that the host is started in a non-blocking manner, allowing for better scalability and responsiveness, while still maintaining the synchronous behavior expected by the calling code.

The change aligns perfectly with the PR objective of introducing asynchronous host starting to potentially prevent deadlocks, as discussed in the referenced article.

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94-94: LGTM!

The built and started host is correctly assigned to the Host property, maintaining consistency with the existing code style.

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