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// Flags: --expose-gc
'use strict';
const common = require('../common');
const assert = require('assert');
const async_hooks = require('async_hooks');
const v8 = require('v8');
// Regression test for https://github.com/nodejs/node/issues/28786
// Make sure that creating a heap snapshot inside an async_hooks hook
// works for Promises.
const createSnapshot = common.mustCall(() => {
v8.getHeapSnapshot().resume();
}, 8); // 2 × init + 2 × resolve + 1 × (after + before) + 2 × destroy = 8 calls
const promiseIds = [];
async_hooks.createHook({
init(id, type) {
if (type === 'PROMISE') {
createSnapshot();
promiseIds.push(id);
}
},
before(id) {
if (promiseIds.includes(id)) createSnapshot();
},
after(id) {
if (promiseIds.includes(id)) createSnapshot();
},
promiseResolve(id) {
assert(promiseIds.includes(id));
createSnapshot();
},
destroy(id) {
if (promiseIds.includes(id)) createSnapshot();
}
}).enable();
Promise.resolve().then(() => {});
setImmediate(global.gc);
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