deno.land / std@0.166.0 / node / _tools / test / parallel / test-child-process-execfilesync-maxbuf.js

test-child-process-execfilesync-maxbuf.js
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// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
'use strict';require('../common');
// This test checks that the maxBuffer option for child_process.execFileSync()// works as expected.
const assert = require('assert');const { getSystemErrorName } = require('util');const { execFileSync } = require('child_process');const msgOut = 'this is stdout';const msgOutBuf = Buffer.from(`${msgOut}\n`);
const args = [ '-e', `console.log("${msgOut}");`,];
// Verify that an error is returned if maxBuffer is surpassed.{ assert.throws(() => { execFileSync(process.execPath, args, { maxBuffer: 1 }); }, (e) => { assert.ok(e, 'maxBuffer should error'); assert.strictEqual(e.code, 'ENOBUFS'); assert.strictEqual(getSystemErrorName(e.errno), 'ENOBUFS'); // We can have buffers larger than maxBuffer because underneath we alloc 64k // that matches our read sizes. assert.deepStrictEqual(e.stdout, msgOutBuf); return true; });}
// Verify that a maxBuffer size of Infinity works.{ const ret = execFileSync(process.execPath, args, { maxBuffer: Infinity });
assert.deepStrictEqual(ret, msgOutBuf);}
// Default maxBuffer size is 1024 * 1024.{ assert.throws(() => { execFileSync( process.execPath, ['-e', "console.log('a'.repeat(1024 * 1024))"] ); }, (e) => { assert.ok(e, 'maxBuffer should error'); assert.strictEqual(e.code, 'ENOBUFS'); assert.strictEqual(getSystemErrorName(e.errno), 'ENOBUFS'); return true; });}
std

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Tagged at
a year ago