sendorder.https.any.js

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This test has a WPT meta file that expects 3 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webtransport/sendorder.https.any.html - WPT Dashboard Interop Dashboard
- /webtransport/sendorder.https.any.serviceworker.html - WPT Dashboard Interop Dashboard
- /webtransport/sendorder.https.any.sharedworker.html - WPT Dashboard Interop Dashboard
- /webtransport/sendorder.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

// META: script=/common/utils.js

promise_test(async t => {

  // Establish a WebTransport session.

  const wt = new WebTransport(webtransport_url('echo.py'));

  await wt.ready;

  // Create a bidirectional stream with sendorder

  const {readable, writable} = await wt.createBidirectionalStream({sendOrder: 3});

  assert_equals(writable.sendOrder, 3);

  // Write a message to the writable end, and close it.

  const writer = writable.getWriter();

  const encoder = new TextEncoder();

  writer.write(encoder.encode('Hello World')).catch(() => {});

  await writer.close();

  // Read the data on the readable end.

  const reply = await read_stream_as_string(readable);

  // Check that the message from the readable end matches the writable end.

  assert_equals(reply, 'Hello World');

}, 'WebTransport client should be able to create and handle a bidirectional stream with sendOrder');

promise_test(async t => {

  // Establish a WebTransport session.

  const wt = new WebTransport(webtransport_url('echo.py'));

  await wt.ready;

  // Create a bidirectional stream with sendorder

  const {readable, writable} = await wt.createBidirectionalStream();

  assert_equals(writable.sendOrder, null);

  // modify it

  writable.sendOrder = 4;

  assert_equals(writable.sendOrder, 4);

}, 'WebTransport client should be able to modify unset sendOrder after stream creation');

promise_test(async t => {

  // Establish a WebTransport session.

  const wt = new WebTransport(webtransport_url('echo.py'));

  await wt.ready;

    // Create a bidirectional stream without sendorder

  const {readable, writable} = await wt.createBidirectionalStream({sendOrder: 3});

  assert_equals(writable.sendOrder, 3);

  // modify it

  writable.sendOrder = 5;

  assert_equals(writable.sendOrder, 5);

  writable.sendOrder = null;

  assert_equals(writable.sendOrder, null);

  // Note: this doesn't verify the underlying stack actually changes priority, just the API

  // for controlling sendOrder

}, 'WebTransport client should be able to modify existing sendOrder after stream creation');