process: improve event-loop

PR-URL: #52108
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

Author: Uzlopak

lib/internal/process/promises.js

@@ -9,6 +9,7 @@
     at *
     at *
     at *
+    at *
 (node:*) Error: This was rejected
     at *
     at *

test/fixtures/errors/unhandled_promise_trace_warnings.snapshot

@@ -46,7 +46,9 @@ process.on('uncaughtException', common.mustCall((err, origin) => {
   counter.dec();
   assert.strictEqual(origin, 'unhandledRejection', err);
   const knownError = errors.shift();
-  assert.deepStrictEqual(err, knownError);
+  assert.strictEqual(err.name, knownError.name);
+  assert.strictEqual(err.toString(), knownError.toString());
+  assert.strictEqual(err.code, knownError.code);
   // Check if the errors are reference equal.
   assert(identical.shift() ? err === knownError : err !== knownError);
 }, 2));

test/parallel/test-promise-unhandled-default.js

@@ -46,7 +46,8 @@ process.on('uncaughtException', common.mustCall((err, origin) => {
   counter.dec();
   assert.strictEqual(origin, 'unhandledRejection', err);
   const knownError = errors.shift();
-  assert.deepStrictEqual(err, knownError);
+  assert.strictEqual(err.message, knownError.message);
+  assert.strictEqual(err.code, knownError.code);
   // Check if the errors are reference equal.
   assert(identical.shift() ? err === knownError : err !== knownError);
 }, 2));

test/parallel/test-promise-unhandled-error.js

@@ -0,0 +1,27 @@
+'use strict';
+
+require('../common');
+const assert = require('assert');
+
+function delay(time) {
+  return new Promise((resolve) => {
+    setTimeout(resolve, time);
+  });
+}
+
+async function test() {
+  for (let i = 0; i < 100000; i++) {
+    await new Promise((resolve, reject) => {
+      reject('value');
+    })
+      .then(() => { }, () => { });
+  }
+
+  const time0 = Date.now();
+  await delay(0);
+
+  const diff = Date.now() - time0;
+  assert.ok(Date.now() - time0 < 500, `Expected less than 500ms, got ${diff}ms`);
+}
+
+test();

test/parallel/test-promise-unhandled-issue-43655.js

@@ -47,7 +47,8 @@ process.on('uncaughtException', common.mustCall((err, origin) => {
   counter.dec();
   assert.strictEqual(origin, 'unhandledRejection', err);
   const knownError = errors.shift();
-  assert.deepStrictEqual(err, knownError);
+  assert.strictEqual(err.message, knownError.message);
+  assert.strictEqual(err.code, knownError.code);
   // Check if the errors are reference equal.
   assert(identical.shift() ? err === knownError : err !== knownError);
 }, 2));