text: // 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');
  // `fs.readFile('/')` does not fail on FreeBSD, because you can open and read
  // the directory there.
  if (common.isFreeBSD)
    common.skip('platform not supported.');
  
  const assert = require('assert');
  const exec = require('child_process').exec;
  const fixtures = require('../common/fixtures');
  
  function test(env, cb) {
    const filename = fixtures.path('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));
  }));
  