web-lock.tentative.https.window.js

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/anonymous-iframe/web-lock.tentative.https.window.html - WPT Dashboard Interop Dashboard

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

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

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

// META: script=/html/cross-origin-embedder-policy/credentialless/resources/common.js

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

// A script acquiring a lock. It can be released using window.releaseLocks

const acquire_script = (key, response) =>  `

  window.releaseLocks ||= [];

  navigator.locks.request("${key}", async lock => {

    send("${response}", "locked")

    await new Promise(r => releaseLocks.push(r));

    send("${response}", "unlocked");

});

`;

const release_script = (response) => `

  for (release of releaseLocks)

    release();

`;

// Assert that |context| holds |expected_keys|.

const assertHeldKeys = async (context, expected_keys) => {

  const queue = token();

  send(context, `

    const list = await navigator.locks.query();

    send("${queue}", JSON.stringify(list));

`);

  const state = JSON.parse(await receive(queue));

  const held = state.held.map(x => x.name);

  assert_equals(held.length, expected_keys.length);

  assert_array_equals(held.sort(), expected_keys.sort());

promise_test(async test => {

  const origin = get_host_info().HTTPS_REMOTE_ORIGIN;

  const key_1 = token();

  const key_2 = token();

  // 2 actors: A credentialless iframe and a normal one.

  const iframe_credentialless = newIframeCredentialless(origin);

  const iframe_normal = newIframe(origin);

  const response_queue_1 = token();

  const response_queue_2 = token();

  // 1. Hold two different locks on both sides.

  send(iframe_credentialless, acquire_script(key_1, response_queue_1));

  send(iframe_normal, acquire_script(key_2, response_queue_2));

  assert_equals(await receive(response_queue_1), "locked");

  assert_equals(await receive(response_queue_2), "locked");

  await assertHeldKeys(iframe_credentialless, [key_1]);

  await assertHeldKeys(iframe_normal, [key_2]);

  // 2. Try to acquire the lock with the same key on the opposite side. It

  //    shouldn't block, because they are partitioned.

  send(iframe_credentialless , acquire_script(key_2, response_queue_1));

  send(iframe_normal, acquire_script(key_1, response_queue_2));

  assert_equals(await receive(response_queue_1), "locked");

  assert_equals(await receive(response_queue_2), "locked");

  await assertHeldKeys(iframe_credentialless, [key_1, key_2]);

  await assertHeldKeys(iframe_normal, [key_1, key_2]);

  // 3. Cleanup: release the 4 locks (2 on each sides).

  send(iframe_credentialless, release_script(response_queue_1));

  assert_equals(await receive(response_queue_1), "unlocked");

  assert_equals(await receive(response_queue_1), "unlocked");

  await assertHeldKeys(iframe_credentialless, []);

  await assertHeldKeys(iframe_normal, [key_1, key_2]);

  send(iframe_normal, release_script(response_queue_2));

  assert_equals(await receive(response_queue_2), "unlocked");

  assert_equals(await receive(response_queue_2), "unlocked");

  await assertHeldKeys(iframe_credentialless, []);

  await assertHeldKeys(iframe_normal, []);

})