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Reduce flakiness in long-running stateless HTTP tool timeout test (#1300)

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: halter73 <54385+halter73@users.noreply.github.com>
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Copilot 2026-02-18 21:56:23 -08:00 • committed by GitHub
commit 231e013160
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1 changed files with 39 additions and 24 deletions
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17
tests/ModelContextProtocol.AspNetCore.Tests/MapMcpTests.cs
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@ -245,9 +245,16 @@ public abstract class MapMcpTests(ITestOutputHelper testOutputHelper) : KestrelI
app.MapMcp(); app.MapMcp();
await app.StartAsync(TestContext.Current.CancellationToken); await app.StartAsync(TestContext.Current.CancellationToken);
// Retry a couple of times to reduce occasional flakiness on low-resource machines.
// If the server regresses to flushing only after tool completion, each attempt should still fail
// because HttpClient timeout (1 second) is below the tool duration (2 seconds).
for (var attempt = 0; attempt < 3; attempt++)
{
try
{
// Create a custom HttpClient with a very short timeout (1 second) // Create a custom HttpClient with a very short timeout (1 second)
// The tool will take 2 seconds to complete // The tool will take 2 seconds to complete
using var shortTimeoutClient = new HttpClient(SocketsHttpHandler) using var shortTimeoutClient = new HttpClient(SocketsHttpHandler, disposeHandler: false)
{ {
BaseAddress = new Uri("http://localhost:5000/"), BaseAddress = new Uri("http://localhost:5000/"),
Timeout = TimeSpan.FromSeconds(1) Timeout = TimeSpan.FromSeconds(1)
@ -273,6 +280,14 @@ public abstract class MapMcpTests(ITestOutputHelper testOutputHelper) : KestrelI
var content = Assert.Single(response.Content.OfType<TextContentBlock>()); var content = Assert.Single(response.Content.OfType<TextContentBlock>());
Assert.Equal("Operation completed after 2000ms", content.Text); Assert.Equal("Operation completed after 2000ms", content.Text);
return;
}
catch (OperationCanceledException) when (attempt < 2)
{
// Retry intermittent timeout-related failures on slow CI machines.
}
}
} }
private ClaimsPrincipal CreateUser(string name) private ClaimsPrincipal CreateUser(string name)