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nodejs/test/parallel/test-fs-truncate-sync.js
Vinícius do Carmo efbda74686 test: expand test coverage of fs.js
* test calling truncateSync() passing a file descriptor
* test calling truncate() passing undefined as the 2nd argument

Refs: https://coverage.nodejs.org/coverage-8ab561b2432bdae3/root/fs.js.html
      (line 673 and 692)

PR-URL: https://github.com/nodejs/node/pull/10972
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
2017-01-26 11:36:08 -05:00

21 lines
476 B
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const tmp = common.tmpDir;
common.refreshTmpDir();
const filename = path.resolve(tmp, 'truncate-sync-file.txt');
fs.writeFileSync(filename, 'hello world', 'utf8');
const fd = fs.openSync(filename, 'r+');
fs.truncateSync(fd, 5);
assert(fs.readFileSync(fd).equals(Buffer.from('hello')));
fs.closeSync(fd);
fs.unlinkSync(filename);