File: test-fs-sync-fd-leak.js

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// 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.

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

// ensure that (read|write|append)FileSync() closes the file descriptor
fs.openSync = function() {
  return 42;
};
fs.closeSync = function(fd) {
  assert.equal(fd, 42);
  close_called++;
};
fs.readSync = function() {
  throw new Error('BAM');
};
fs.writeSync = function() {
  throw new Error('BAM');
};

fs.fstatSync = function() {
  throw new Error('BAM');
};

ensureThrows(function() {
  fs.readFileSync('dummy');
});
ensureThrows(function() {
  fs.writeFileSync('dummy', 'xxx');
});
ensureThrows(function() {
  fs.appendFileSync('dummy', 'xxx');
});

var close_called = 0;
function ensureThrows(cb) {
  var got_exception = false;

  close_called = 0;
  try {
    cb();
  } catch (e) {
    assert.equal(e.message, 'BAM');
    got_exception = true;
  }

  assert.equal(close_called, 1);
  assert.equal(got_exception, true);
}