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'use strict';
const common = require('../common');
const assert = require('assert');
const { promiseHooks } = require('v8');
assert.throws(() => {
promiseHooks.onSettled(async function() { });
}, /The "settledHook" argument must be of type function/);
assert.throws(() => {
promiseHooks.onSettled(async function*() { });
}, /The "settledHook" argument must be of type function/);
let seen;
const stop = promiseHooks.onSettled(common.mustCall((promise) => {
seen = promise;
}, 4));
// Constructor resolve triggers hook
const promise = new Promise((resolve, reject) => {
assert.strictEqual(seen, undefined);
setImmediate(() => {
resolve();
assert.strictEqual(seen, promise);
seen = undefined;
constructorReject();
});
});
// Constructor reject triggers hook
function constructorReject() {
const promise = new Promise((resolve, reject) => {
assert.strictEqual(seen, undefined);
setImmediate(() => {
reject();
assert.strictEqual(seen, promise);
seen = undefined;
simpleResolveReject();
});
});
promise.catch(() => {});
}
// Sync resolve/reject helpers trigger hook
function simpleResolveReject() {
const resolved = Promise.resolve();
assert.strictEqual(seen, resolved);
seen = undefined;
const rejected = Promise.reject();
assert.strictEqual(seen, rejected);
seen = undefined;
stop();
rejected.catch(() => {});
}
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