From 9e19f782e574a17c566d1f51c5b7e32641c4e4f8 Mon Sep 17 00:00:00 2001
From: liuxingbaoyu <30521560+liuxingbaoyu@users.noreply.github.com>
Date: Sun, 9 Oct 2022 06:21:59 +0800
Subject: [PATCH] fix

---
 CHANGELOG.md                                  |  1 +
 .../src/__tests__/collectHandles.test.js      | 12 +++++++
 packages/jest-core/src/collectHandles.ts      | 31 +++++++++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8db5b756640b..c8d87a2d1d70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@
 - `[jest-reporters]` Revert: Transform file paths into hyperlinks ([#13399](https://github.com/facebook/jest/pull/13399))
 - `[@jest/types]` Infer type of `each` table correctly when the table is a tuple or array ([#13381](https://github.com/facebook/jest/pull/13381))
 - `[@jest/types]` Rework typings to allow the `*ReturnedWith` matchers to be called with no argument ([#13385](https://github.com/facebook/jest/pull/13385))
+- `[jest-core]` Fix `collectHandles` false positives for some special objects such as `TLSWRAP`. ([#13414](https://github.com/facebook/jest/pull/13414))
 
 ### Chore & Maintenance
 
diff --git a/packages/jest-core/src/__tests__/collectHandles.test.js b/packages/jest-core/src/__tests__/collectHandles.test.js
index 229ccb9a2c7a..2455149f4526 100644
--- a/packages/jest-core/src/__tests__/collectHandles.test.js
+++ b/packages/jest-core/src/__tests__/collectHandles.test.js
@@ -10,6 +10,7 @@ import * as crypto from 'crypto';
 import {promises as dns} from 'dns';
 import http from 'http';
 import {PerformanceObserver} from 'perf_hooks';
+import {TLSSocket} from 'tls';
 import zlib from 'zlib';
 import collectHandles from '../collectHandles';
 
@@ -134,4 +135,15 @@ describe('collectHandles', () => {
       expect.objectContaining({message: 'TCPSERVERWRAP'}),
     );
   });
+
+  it('should collect handles for some special objects such as `TLSWRAP`', async () => {
+    const handleCollector = collectHandles();
+
+    const socket = new TLSSocket();
+    socket.destroy();
+
+    const openHandles = await handleCollector();
+
+    expect(openHandles).toHaveLength(0);
+  });
 });
diff --git a/packages/jest-core/src/collectHandles.ts b/packages/jest-core/src/collectHandles.ts
index 5e69fd920e71..2cc5f7c76b7e 100644
--- a/packages/jest-core/src/collectHandles.ts
+++ b/packages/jest-core/src/collectHandles.ts
@@ -8,6 +8,8 @@
 /* eslint-disable local/ban-types-eventually */
 
 import * as asyncHooks from 'async_hooks';
+import * as v8 from 'v8';
+import * as vm from 'vm';
 import {promisify} from 'util';
 import stripAnsi = require('strip-ansi');
 import type {Config} from '@jest/types';
@@ -45,6 +47,27 @@ const hasWeakRef = typeof WeakRef === 'function';
 
 const asyncSleep = promisify(setTimeout);
 
+let gcFunc: typeof global.gc | undefined;
+function runGC() {
+  if (!gcFunc) {
+    if (typeof global.gc === 'function') {
+      gcFunc = global.gc;
+    } else {
+      v8.setFlagsFromString('--expose-gc');
+      gcFunc = vm.runInNewContext('gc');
+      v8.setFlagsFromString('--no-expose-gc');
+      if (!gcFunc) {
+        console.warn(
+          'Cannot find `global.gc` function. Please run node with `--expose-gc`',
+        );
+        gcFunc = () => {};
+      }
+    }
+  }
+
+  gcFunc();
+}
+
 // Inspired by https://github.com/mafintosh/why-is-node-running/blob/master/index.js
 // Extracted as we want to format the result ourselves
 export default function collectHandles(): HandleCollectionResult {
@@ -125,6 +148,14 @@ export default function collectHandles(): HandleCollectionResult {
     // callback, we will not yet have seen the resource be destroyed here.
     await asyncSleep(100);
 
+    if (activeHandles.size !== 0) {
+      // For some special objects such as `TLSWRAP`.
+      // Ref: https://github.com/facebook/jest/issues/11665
+      runGC();
+
+      await asyncSleep(0);
+    }
+
     hook.disable();
 
     // Get errors for every async resource still referenced at this moment