node/test/parallel/test-fs-readfile-error.js

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';
const common = require('../common');
const assert = require('assert');
const exec = require('child_process').exec;
const path = require('path');

// `fs.readFile('/')` does not fail on FreeBSD, because you can open and read
// the directory there.
if (common.isFreeBSD) {
  common.skip('platform not supported.');
  return;
}

function test(env, cb) {
  const filename = path.join(common.fixturesDir, 'test-fs-readfile-error.js');
  const execPath = `"${process.execPath}" "${filename}"`;
  const options = { env: Object.assign(process.env, env) };
  exec(execPath, options, common.mustCall((err, stdout, stderr) => {
    assert(err);
    assert.strictEqual(stdout, '');
    assert.notStrictEqual(stderr, '');
    cb(String(stderr));
  }));
}

test({ NODE_DEBUG: '' }, common.mustCall((data) => {
  assert(/EISDIR/.test(data));
  assert(!/test-fs-readfile-error/.test(data));
}));

test({ NODE_DEBUG: 'fs' }, common.mustCall((data) => {
  assert(/EISDIR/.test(data));
  assert(/test-fs-readfile-error/.test(data));
}));