| // 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'); |
| |
| var filename = common.tmpDir + '/truncate-file.txt'; |
| |
| // Synchronous test. |
| (function() { |
| fs.writeFileSync(filename, '0123456789'); |
| assert.equal(fs.readFileSync(filename).toString(), '0123456789'); |
| fs.truncateSync(filename, 5); |
| assert.equal(fs.readFileSync(filename).toString(), '01234'); |
| })(); |
| |
| // Asynchronous test. |
| (function() { |
| fs.writeFileSync(filename, '0123456789'); |
| assert.equal(fs.readFileSync(filename).toString(), '0123456789'); |
| fs.truncate(filename, 5, common.mustCall(function(err) { |
| if (err) throw err; |
| assert.equal(fs.readFileSync(filename).toString(), '01234'); |
| })); |
| })(); |