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'use strict';
require('../common');
var assert = require('assert');
var fs = require('fs');
var O_APPEND = fs.constants.O_APPEND || 0;
var O_CREAT = fs.constants.O_CREAT || 0;
var O_EXCL = fs.constants.O_EXCL || 0;
var O_RDONLY = fs.constants.O_RDONLY || 0;
var O_RDWR = fs.constants.O_RDWR || 0;
var O_TRUNC = fs.constants.O_TRUNC || 0;
var O_WRONLY = fs.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);
assert.equal(fs._stringToFlags('wx'), O_TRUNC | O_CREAT | O_WRONLY | O_EXCL);
assert.equal(fs._stringToFlags('xw'), O_TRUNC | O_CREAT | O_WRONLY | O_EXCL);
assert.equal(fs._stringToFlags('wx+'), O_TRUNC | O_CREAT | O_RDWR | O_EXCL);
assert.equal(fs._stringToFlags('xw+'), O_TRUNC | O_CREAT | O_RDWR | O_EXCL);
assert.equal(fs._stringToFlags('ax'), O_APPEND | O_CREAT | O_WRONLY | O_EXCL);
assert.equal(fs._stringToFlags('xa'), O_APPEND | O_CREAT | O_WRONLY | O_EXCL);
assert.equal(fs._stringToFlags('ax+'), O_APPEND | O_CREAT | O_RDWR | O_EXCL);
assert.equal(fs._stringToFlags('xa+'), O_APPEND | O_CREAT | O_RDWR | O_EXCL);
('+ +a +r +w rw wa war raw r++ a++ w++ x +x x+ rx rx+ wxx wax xwx xxx')
.split(' ')
.forEach(function(flags) {
assert.throws(function() { fs._stringToFlags(flags); });
});
assert.throws(
() => fs._stringToFlags({}),
/Unknown file open flag: \[object Object\]/
);
assert.throws(
() => fs._stringToFlags(true),
/Unknown file open flag: true/
);
assert.throws(
() => fs._stringToFlags(null),
/Unknown file open flag: null/
);
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