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// Flags: --expose-internals 'use strict'; const common = require('../common'); const assert = require('assert'); const internal_async_hooks = require('internal/async_hooks'); const { spawn } = require('child_process'); const corruptedMsg = /async hook stack has become corrupted/; const heartbeatMsg = /heartbeat: still alive/; const { newAsyncId, getDefaultTriggerAsyncId, emitInit, emitBefore, emitAfter } = internal_async_hooks; const initHooks = require('./init-hooks'); if (process.argv[2] === 'child') { const hooks = initHooks(); hooks.enable(); // In both the below two cases 'before' of event2 is nested inside 'before' // of event1. // Therefore the 'after' of event2 needs to occur before the // 'after' of event 1. // The first test of the two below follows that rule, // the second one doesn't. const eventOneId = newAsyncId(); const eventTwoId = newAsyncId(); const triggerId = getDefaultTriggerAsyncId(); emitInit(eventOneId, 'event1', triggerId, {}); emitInit(eventTwoId, 'event2', triggerId, {}); // Proper unwind emitBefore(eventOneId, triggerId); emitBefore(eventTwoId, triggerId); emitAfter(eventTwoId); emitAfter(eventOneId); // Improper unwind emitBefore(eventOneId, triggerId); emitBefore(eventTwoId, triggerId); console.log('heartbeat: still alive'); emitAfter(eventOneId); } else { const args = ['--expose-internals'] .concat(process.argv.slice(1)) .concat('child'); let errData = Buffer.from(''); let outData = Buffer.from(''); const child = spawn(process.execPath, args); child.stderr.on('data', (d) => { errData = Buffer.concat([ errData, d ]); }); child.stdout.on('data', (d) => { outData = Buffer.concat([ outData, d ]); }); child.on('close', common.mustCall((code) => { assert.strictEqual(code, 1); assert.match(outData.toString(), heartbeatMsg, 'did not crash until we reached offending line of code ' + `(found ${outData})`); assert.match(errData.toString(), corruptedMsg, 'printed error contains corrupted message ' + `(found ${errData})`); })); }