node/test/parallel/test-fs-truncate-fd.js
Rich Trott 7c79490bfb test: only refresh tmpDir for tests that need it
Expose `common.refreshTmpDir()` and only call it
for tests that use common.tmpDir or common.PIPE.

A positive side effect is the removal of a code
smell where child processes were detected by the
presence of `.send()`. Now each process can decide
for itself if it needs to refresh tmpDir.

PR-URL: https://github.com/nodejs/io.js/pull/1954
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>
2015-06-13 22:27:17 -07:00

26 lines
609 B
JavaScript

'use strict';
var common = require('../common');
var assert = require('assert');
var path = require('path');
var fs = require('fs');
var tmp = common.tmpDir;
common.refreshTmpDir();
var filename = path.resolve(tmp, 'truncate-file.txt');
var success = 0;
fs.writeFileSync(filename, 'hello world', 'utf8');
var fd = fs.openSync(filename, 'r+');
fs.truncate(fd, 5, function(err) {
assert.ok(!err);
assert.equal(fs.readFileSync(filename, 'utf8'), 'hello');
success++;
});
process.on('exit', function() {
fs.closeSync(fd);
fs.unlinkSync(filename);
assert.equal(success, 1);
console.log('ok');
});