[test-quarantine] Quarantine IISExpress RequestResponseTests.ReadAndWriteSlowConnection

[DeagleGross]

Quarantines a flaky IIS connection test:

Test	Failures (30 days)	Issue
IISExpress.FunctionalTests.RequestResponseTests.ReadAndWriteSlowConnection	2	#162

The test sends a POST request one character at a time (10ms between each character) to simulate a slow connection. It has been failing intermittently by receiving an empty string instead of HTTP/1.1 200 OK response headers. This is consistent with IISExpress timing issues under CI load, where the slow-connection simulation interacts with connection timeouts or thread scheduling.

The using Microsoft.AspNetCore.InternalTesting; statement was already present in the file.

Associated issue: #162

Note

🔒 Integrity filter blocked 19 items

The following items were blocked because they don't meet the GitHub integrity level.

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• ... and 3 more items

To allow these resources, lower min-integrity in your GitHub frontmatter:

tools:
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Generated by Daily Test Quarantine Management · ◷

---

Note

This was originally intended as a pull request, but the git push operation failed.

Workflow Run: View run details and download patch artifact

The patch file is available in the agent artifact in the workflow run linked above.

To create a pull request with the changes:

# Download the artifact from the workflow run
gh run download 24028854426 -n agent -D /tmp/agent-24028854426

# Create a new branch
git checkout -b quarantine/2026-04-06-iis-read-write-slow-11791a9a9c47cbcc

# Apply the patch (--3way handles cross-repo patches where files may already exist)
git am --3way /tmp/agent-24028854426/aw-quarantine-2026-04-06-iis-read-write-slow.patch

# Push the branch to origin
git push origin quarantine/2026-04-06-iis-read-write-slow-11791a9a9c47cbcc

# Create the pull request
gh pr create --title '[test-quarantine] Quarantine IISExpress RequestResponseTests.ReadAndWriteSlowConnection' --base main --head quarantine/2026-04-06-iis-read-write-slow-11791a9a9c47cbcc --repo DeagleGross/aspnetcore

Show patch (36 lines)

From 2fe7bb9fc262eb428fadb27e6de7103abcbb2223 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]" <github-actions[bot]@users.noreply.github.com>
Date: Mon, 6 Apr 2026 11:21:41 +0000
Subject: [PATCH] Quarantine RequestResponseTests.ReadAndWriteSlowConnection

The test sends a request character-by-character (slow connection simulation)
and has been failing intermittently in IISExpress.FunctionalTests, receiving
an empty string instead of HTTP response headers (2 failures in 30 days).

This is consistent with a timing/connection issue in IISExpress under CI
load, where the slow-connection simulation interacts poorly with connection
timeouts or thread scheduling.

Associated issue: https://github.com/DeagleGross/aspnetcore/issues/162

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 .../IIS/IIS/test/Common.FunctionalTests/RequestResponseTests.cs  | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Servers/IIS/IIS/test/Common.FunctionalTests/RequestResponseTests.cs b/src/Servers/IIS/IIS/test/Common.FunctionalTests/RequestResponseTests.cs
index 4179953dcf..f7b2d3cda5 100644
--- a/src/Servers/IIS/IIS/test/Common.FunctionalTests/RequestResponseTests.cs
+++ b/src/Servers/IIS/IIS/test/Common.FunctionalTests/RequestResponseTests.cs
@@ -214,6 +214,7 @@ public class RequestResponseTests
     }
 
     [ConditionalFact]
+    [QuarantinedTest("https://github.com/DeagleGross/aspnetcore/issues/162")]
     public async Task ReadAndWriteSlowConnection()
     {
         using (var connection = _fixture.CreateTestConnection())
-- 
2.53.0