'use strict'; const common = require('../common'); const assert = require('assert'); const child_process = require('child_process'); const { once } = require('events'); if (process.argv[2] !== 'child') { for (const value of [null, 42, Infinity, 'foo']) { common.expectsError(() => { child_process.spawn(process.execPath, [], { serialization: value }); }, { code: 'ERR_INVALID_OPT_VALUE', message: `The value "${value}" is invalid ` + 'for option "options.serialization"' }); } (async () => { const cp = child_process.spawn(process.execPath, [__filename, 'child'], { stdio: ['ipc', 'inherit', 'inherit'], serialization: 'advanced' }); const circular = {}; circular.circular = circular; for await (const message of [ { uint8: new Uint8Array(4) }, { float64: new Float64Array([ Math.PI ]) }, { buffer: Buffer.from('Hello!') }, { map: new Map([{ a: 1 }, { b: 2 }]) }, { bigInt: 1337n }, circular, new Error('Something went wrong'), new RangeError('Something range-y went wrong'), ]) { cp.send(message); const [ received ] = await once(cp, 'message'); assert.deepStrictEqual(received, message); } cp.disconnect(); })().then(common.mustCall()); } else { process.on('message', (msg) => process.send(msg)); }