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<!DOCTYPE html>
<meta charset="utf-8"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="resources/webtransport-test-helpers.sub.js"></script>
<script>
// A test that aims to reproduce https://crbug.com/1369030 -- note that since
// the bug in question is a race condition, this test will probably be flaky if
// this is actually broken.
promise_test(async t => {
const wt = new WebTransport(webtransport_url('echo.py'));
await wt.ready;
const numBytes = 1024 * 1024;
const numStreams = 5;
for (let i = 0; i < numStreams; i++) {
const stream = await wt.createBidirectionalStream();
const writer = stream.writable.getWriter();
await writer.write(new Uint8Array(numBytes));
await writer.close();
const response = await (new Response(stream.readable).arrayBuffer());
assert_equals(response.byteLength, numBytes);
}
}, 'Ensure large bidirectional streams does not cause race condition');
</script>
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