// 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 constants = require('constants');
var fs = require('fs');

var O_APPEND    = constants.O_APPEND    || 0;
var O_CREAT     = constants.O_CREAT     || 0;
var O_DIRECTORY = constants.O_DIRECTORY || 0;
var O_EXCL      = constants.O_EXCL      || 0;
var O_NOCTTY    = constants.O_NOCTTY    || 0;
var O_NOFOLLOW  = constants.O_NOFOLLOW  || 0;
var O_RDONLY    = constants.O_RDONLY    || 0;
var O_RDWR      = constants.O_RDWR      || 0;
var O_SYMLINK   = constants.O_SYMLINK   || 0;
var O_SYNC      = constants.O_SYNC      || 0;
var O_TRUNC     = constants.O_TRUNC     || 0;
var O_WRONLY    = constants.O_WRONLY    || 0;

assert.equal(fs._stringToFlags('r'),  O_RDONLY);
assert.equal(fs._stringToFlags('r+'), O_RDWR);
assert.equal(fs._stringToFlags('w'),  O_TRUNC|O_CREAT|O_WRONLY);
assert.equal(fs._stringToFlags('w+'), O_TRUNC|O_CREAT|O_RDWR);
assert.equal(fs._stringToFlags('a'),  O_APPEND|O_CREAT|O_WRONLY);
assert.equal(fs._stringToFlags('a+'), O_APPEND|O_CREAT|O_RDWR);

'+ +a +r +w rw wa war raw r++ a++ w++'.split(' ').forEach(function(flags) {
  assert.throws(function() { fs._stringToFlags(flags); });
});