v8/test/mjsunit/async-hooks/api-methods.js
Maya Lekova 8e0f67be3f Reland "[async] Expose async hooks to d8"
This is a reland of 3c4d0316e4

Original change's description:
> [async] Expose async hooks to d8
>
> This implementation follows the Node.js API as a guideline.
>
> Change-Id: I09274ea25ccdbb9794a7440d6c14f26b9febb4f4
> Reviewed-on: https://chromium-review.googlesource.com/1065818
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Reviewed-by: Ali Ijaz Sheikh <ofrobots@google.com>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#53551}

Change-Id: If2114db2ff179c6b07a40bc0c2dac3a41f37aea9
Bug: chromium:850530
Reviewed-on: https://chromium-review.googlesource.com/1088890
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53901}
2018-06-21 04:11:17 +00:00

69 lines
2.9 KiB
JavaScript

// Copyright 2018 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --expose-async-hooks
// Check for correct API methods
(function() {
assertTrue(async_hooks.hasOwnProperty('createHook'),
'Async hooks missing createHook method');
assertTrue(async_hooks.hasOwnProperty('executionAsyncId'),
'Async hooks missing executionAsyncId method');
assertTrue(async_hooks.hasOwnProperty('triggerAsyncId'),
'Async hooks missing triggerAsyncId method');
let ah = async_hooks.createHook({});
assertTrue(ah.hasOwnProperty('enable'), 'Async hooks missing enable method');
assertTrue(ah.hasOwnProperty('disable'),
'Async hooks missing disable method');
})();
// Check for correct enabling/disabling of async hooks
(function() {
let storedPromise;
let ah = async_hooks.createHook({
init(asyncId, type, triggerAsyncId, resource) {
storedPromise = resource.promise || resource;
}
});
ah.enable();
let createdPromise = new Promise(function(resolve) {
resolve(42);
});
assertSame(storedPromise, createdPromise,
"Async hooks weren't enabled correctly");
ah.disable();
createdPromise = Promise.resolve(52);
assertNotSame(storedPromise, createdPromise,
"Async hooks weren't disabled correctly");
ah.enable();
createdPromise = Promise.resolve(62);
assertSame(storedPromise, createdPromise,
"Async hooks weren't enabled correctly");
})();