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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.ok(heartbeatMsg.test(outData.toString()),
'did not crash until we reached offending line of code ' +
`(found ${outData})`);
assert.ok(corruptedMsg.test(errData.toString()),
'printed error contains corrupted message ' +
`(found ${errData})`);
}));
}
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