nodejs/test/parallel/test-fs-write-file-invalid-path.js

'use strict';

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

if (!common.isWindows)
  common.skip('This test is for Windows only.');

const tmpdir = require('../common/tmpdir');
tmpdir.refresh();

const DATA_VALUE = 'hello';

// Refs: https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
// Ignore '/', '\\' and ':'
const RESERVED_CHARACTERS = '<>"|?*';

[...RESERVED_CHARACTERS].forEach((ch) => {
  const pathname = tmpdir.resolve(`somefile_${ch}`);
  assert.throws(
    () => {
      fs.writeFileSync(pathname, DATA_VALUE);
    },
    /^Error: ENOENT: no such file or directory, open '.*'$/,
    `failed with '${ch}'`);
});

// Test for ':' (NTFS data streams).
// Refs: https://msdn.microsoft.com/en-us/library/windows/desktop/bb540537.aspx
const pathname = tmpdir.resolve('foo:bar');
fs.writeFileSync(pathname, DATA_VALUE);

let content = '';
const fileDataStream = fs.createReadStream(pathname, {
  encoding: 'utf8'
});

fileDataStream.on('data', (data) => {
  content += data;
});

fileDataStream.on('end', common.mustCall(() => {
  assert.strictEqual(content, DATA_VALUE);
}));