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Fix race in FrameAfterTrailers_UnexpectedFrameError #31061

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Mar 19, 2021
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Original file line number Diff line number Diff line change
Expand Up @@ -1685,6 +1685,10 @@ public async Task FrameAfterTrailers_UnexpectedFrameError()
var requestStream = await InitializeConnectionAndStreamsAsync(_noopApplication);

await requestStream.SendHeadersAsync(headers, endStream: false);

// The app no-ops quickly. Wait for it here so it's not a race with the error response.
await requestStream.ExpectHeadersAsync();

await requestStream.SendDataAsync(Encoding.UTF8.GetBytes("Hello world"));
await requestStream.SendHeadersAsync(trailers, endStream: false);
await requestStream.SendDataAsync(Encoding.UTF8.GetBytes("This is invalid."));
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