node/test/parallel/test-fs-null-bytes.js

'use strict';
const common = require('../common');
const assert = require('assert');
const fs = require('fs');

function check(async, sync) {
  const expected = /Path must be a string without null bytes/;
  const argsSync = Array.prototype.slice.call(arguments, 2);
  const argsAsync = argsSync.concat((er) => {
    assert(er && er.message.match(expected));
    assert.strictEqual(er.code, 'ENOENT');
  });

  if (sync)
    assert.throws(() => {
      sync.apply(null, argsSync);
    }, expected);

  if (async)
    async.apply(null, argsAsync);
}

check(fs.access, fs.accessSync, 'foo\u0000bar');
check(fs.access, fs.accessSync, 'foo\u0000bar', fs.F_OK);
check(fs.appendFile, fs.appendFileSync, 'foo\u0000bar', 'abc');
check(fs.chmod, fs.chmodSync, 'foo\u0000bar', '0644');
check(fs.chown, fs.chownSync, 'foo\u0000bar', 12, 34);
check(fs.link, fs.linkSync, 'foo\u0000bar', 'foobar');
check(fs.link, fs.linkSync, 'foobar', 'foo\u0000bar');
check(fs.lstat, fs.lstatSync, 'foo\u0000bar');
check(fs.mkdir, fs.mkdirSync, 'foo\u0000bar', '0755');
check(fs.open, fs.openSync, 'foo\u0000bar', 'r');
check(fs.readFile, fs.readFileSync, 'foo\u0000bar');
check(fs.readdir, fs.readdirSync, 'foo\u0000bar');
check(fs.readlink, fs.readlinkSync, 'foo\u0000bar');
check(fs.realpath, fs.realpathSync, 'foo\u0000bar');
check(fs.rename, fs.renameSync, 'foo\u0000bar', 'foobar');
check(fs.rename, fs.renameSync, 'foobar', 'foo\u0000bar');
check(fs.rmdir, fs.rmdirSync, 'foo\u0000bar');
check(fs.stat, fs.statSync, 'foo\u0000bar');
check(fs.symlink, fs.symlinkSync, 'foo\u0000bar', 'foobar');
check(fs.symlink, fs.symlinkSync, 'foobar', 'foo\u0000bar');
check(fs.truncate, fs.truncateSync, 'foo\u0000bar');
check(fs.unlink, fs.unlinkSync, 'foo\u0000bar');
check(null, fs.unwatchFile, 'foo\u0000bar', common.fail);
check(fs.utimes, fs.utimesSync, 'foo\u0000bar', 0, 0);
check(null, fs.watch, 'foo\u0000bar', common.fail);
check(null, fs.watchFile, 'foo\u0000bar', common.fail);
check(fs.writeFile, fs.writeFileSync, 'foo\u0000bar', 'abc');

// an 'error' for exists means that it doesn't exist.
// one of many reasons why this file is the absolute worst.
fs.exists('foo\u0000bar', common.mustCall((exists) => {
  assert(!exists);
}));
assert(!fs.existsSync('foo\u0000bar'));