Closed
Description
Version
28.1.3
Steps to reproduce
I'm not exactly sure what component of my codebase is triggering the handle, but the stacktrace (see below) and other reports seem to indicate this is from scheduler, particularly this line. I will try to isolate an MVP demonstration of code that triggers this.
Downgrading to 27.x seems to fix the problem.
The line in question from scheduler calls new MessageChannel(), and the 28.0 changelog does mention #12553, which could be related?
Expected behavior
Test suite exits with no open handles.
Actual behavior
Jest has detected the following 1 open handle potentially keeping Jest from exiting:
● MESSAGEPORT
3 | import {Appearance, AppState, LogBox, Platform, useColorScheme} from 'react-native';
4 | import {DarkTheme, DefaultTheme, NavigationContainer, useNavigationContainerRef} from '@react-navigation/native';
> 5 | import {createNativeStackNavigator} from '@react-navigation/native-stack';
| ^
6 | import * as SecureStore from 'expo-secure-store';
7 | import Orbit from "@orbit/core";
8 | import {DataProvider} from "react-orbitjs";
at node_modules/scheduler/cjs/scheduler.development.js:178:17
at Object.<anonymous> (node_modules/scheduler/cjs/scheduler.development.js:645:5)
at Object.<anonymous> (node_modules/scheduler/index.js:6:20)
at require (node_modules/react-native/Libraries/Renderer/implementations/ReactNativeRenderer-dev.js:23:17)
at Object.<anonymous> (node_modules/react-native/Libraries/Renderer/implementations/ReactNativeRenderer-dev.js:17:3)
at Object.require (node_modules/react-native/Libraries/Renderer/shims/ReactNative.js:21:17)
at Object.require (node_modules/react-native/Libraries/Animated/AnimatedEvent.js:16:21)
at Object.require (node_modules/react-native/Libraries/Animated/AnimatedMock.js:13:44)
at Object.require (node_modules/react-native/Libraries/Animated/Animated.js:19:22)
at Object.require [as Animated] (node_modules/react-native/index.js:260:12)
at Object.Animated (node_modules/@react-navigation/elements/lib/commonjs/PlatformPressable.tsx:21:27)
at Object.<anonymous> (node_modules/@react-navigation/elements/lib/commonjs/Header/HeaderBackButton.tsx:14:1)
at Object.<anonymous> (node_modules/@react-navigation/elements/lib/commonjs/index.tsx:5:1)
at Object.<anonymous> (node_modules/@react-navigation/native-stack/lib/commonjs/views/NativeStackView.native.tsx:1:1)
at Object.<anonymous> (node_modules/@react-navigation/native-stack/lib/commonjs/navigators/createNativeStackNavigator.tsx:19:1)
at Object.<anonymous> (node_modules/@react-navigation/native-stack/lib/commonjs/index.tsx:4:1)
at Object.<anonymous> (App.tsx:5:1)
at Object.<anonymous> (__tests__/App.test.tsx:1:1)
Additional context
Similar reports at #12852 (comment), node-fetch/node-fetch#1479 (comment) and callstack/react-native-testing-library#1007 (comment)
Environment
$ npx envinfo --preset jest
System:
OS: Linux 5.18 Debian GNU/Linux 10 (buster) 10 (buster)
CPU: (12) x64 Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz
Binaries:
Node: 16.13.1 - /usr/local/bin/node
Yarn: 1.22.15 - /usr/local/bin/yarn
npm: 8.1.2 - /usr/local/bin/npm
npmPackages:
jest: ^27 => 27.5.1 (This shows the working version of jest, otherwise this is the same environment.)