nodejs/test/parallel/test-async-hooks-promise-triggerid.js

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'use strict';
const common = require('../common');
const assert = require('assert');
const async_hooks = require('async_hooks');
common.crashOnUnhandledRejection();
const promiseAsyncIds = [];
async_hooks.createHook({
init: common.mustCallAtLeast((id, type, triggerId) => {
if (type === 'PROMISE') {
// Check that the last known Promise is triggering the creation of
// this one.
assert.strictEqual(promiseAsyncIds[promiseAsyncIds.length - 1] || 1,
triggerId);
promiseAsyncIds.push(id);
}
}, 3),
before: common.mustCall((id) => {
assert.strictEqual(id, promiseAsyncIds[1]);
}),
after: common.mustCall((id) => {
assert.strictEqual(id, promiseAsyncIds[1]);
})
}).enable();
Promise.resolve(42).then(common.mustCall(() => {
assert.strictEqual(async_hooks.executionAsyncId(), promiseAsyncIds[1]);
assert.strictEqual(async_hooks.triggerAsyncId(), promiseAsyncIds[0]);
Promise.resolve(10);
}));