echo-large-bidirectional-streams.https.any.js

Enable keyboard shortcuts

This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webtransport/echo-large-bidirectional-streams.https.any.html - WPT Dashboard Interop Dashboard
- /webtransport/echo-large-bidirectional-streams.https.any.serviceworker.html - WPT Dashboard Interop Dashboard
- /webtransport/echo-large-bidirectional-streams.https.any.sharedworker.html - WPT Dashboard Interop Dashboard
- /webtransport/echo-large-bidirectional-streams.https.any.worker.html - WPT Dashboard Interop Dashboard

// META: global=window,worker

// META: script=/common/get-host-info.sub.js

// META: script=resources/webtransport-test-helpers.sub.js

// 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');