node/test/parallel/test-fs-mkdtemp.js
Sakthipriyan Vairamani c4fadbc15d fs: execute mkdtemp's callback with no context
All the callback functions in `fs` module are supposed to be executed
with no context (`this` value should not be a valid object). But
`mkdtemp`'s callback will have the `FSReqWrap` object as the context.

Sample code to reproduce the problem

    'use strict';

    const fs = require('fs');
    fs.mkdtemp('/tmp/abcd', null, function() {
      console.log(this);
    });

This would print

    FSReqWrap { oncomplete: [Function] }

But that should have printed `null` and this patch fixes that.

PR-URL: https://github.com/nodejs/node/pull/7068
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-06-04 16:31:18 +05:30

37 lines
1.2 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const fs = require('fs');
const path = require('path');
const Buffer = require('buffer').Buffer;
common.refreshTmpDir();
const tmpFolder = fs.mkdtempSync(path.join(common.tmpDir, 'foo.'));
assert(path.basename(tmpFolder).length === 'foo.XXXXXX'.length);
assert(common.fileExists(tmpFolder));
const utf8 = fs.mkdtempSync(path.join(common.tmpDir, '\u0222abc.'));
assert.equal(Buffer.byteLength(path.basename(utf8)),
Buffer.byteLength('\u0222abc.XXXXXX'));
assert(common.fileExists(utf8));
function handler(err, folder) {
assert.ifError(err);
assert(common.fileExists(folder));
assert.strictEqual(this, null);
}
fs.mkdtemp(path.join(common.tmpDir, 'bar.'), common.mustCall(handler));
// Same test as above, but making sure that passing an options object doesn't
// affect the way the callback function is handled.
fs.mkdtemp(path.join(common.tmpDir, 'bar.'), {}, common.mustCall(handler));
// Making sure that not passing a callback doesn't crash, as a default function
// is passed internally.
assert.doesNotThrow(() => fs.mkdtemp(path.join(common.tmpDir, 'bar-')));
assert.doesNotThrow(() => fs.mkdtemp(path.join(common.tmpDir, 'bar-'), {}));