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test: add ES6 and improve test-fs-truncate #10167

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test: add ES6 and improve test-fs-truncate #10167

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42 changes: 21 additions & 21 deletions test/parallel/test-fs-truncate.js
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Original file line number Diff line number Diff line change
@@ -1,43 +1,43 @@
'use strict';
var common = require('../common');
var assert = require('assert');
var path = require('path');
var fs = require('fs');
var tmp = common.tmpDir;
var filename = path.resolve(tmp, 'truncate-file.txt');
var data = Buffer.alloc(1024 * 16, 'x');
const common = require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const tmp = common.tmpDir;
const filename = path.resolve(tmp, 'truncate-file.txt');
const data = Buffer.alloc(1024 * 16, 'x');

common.refreshTmpDir();

var stat;
let stat;

// truncateSync
fs.writeFileSync(filename, data);
stat = fs.statSync(filename);
assert.equal(stat.size, 1024 * 16);
assert.strictEqual(stat.size, 1024 * 16);

fs.truncateSync(filename, 1024);
stat = fs.statSync(filename);
assert.equal(stat.size, 1024);
assert.strictEqual(stat.size, 1024);

fs.truncateSync(filename);
stat = fs.statSync(filename);
assert.equal(stat.size, 0);
assert.strictEqual(stat.size, 0);

// ftruncateSync
fs.writeFileSync(filename, data);
var fd = fs.openSync(filename, 'r+');
const fd = fs.openSync(filename, 'r+');

stat = fs.statSync(filename);
assert.equal(stat.size, 1024 * 16);
assert.strictEqual(stat.size, 1024 * 16);

fs.ftruncateSync(fd, 1024);
stat = fs.statSync(filename);
assert.equal(stat.size, 1024);
assert.strictEqual(stat.size, 1024);

fs.ftruncateSync(fd);
stat = fs.statSync(filename);
assert.equal(stat.size, 0);
assert.strictEqual(stat.size, 0);

fs.closeSync(fd);

Expand All @@ -54,19 +54,19 @@ function testTruncate(cb) {
if (er) return cb(er);
fs.stat(filename, function(er, stat) {
if (er) return cb(er);
assert.equal(stat.size, 1024 * 16);
assert.strictEqual(stat.size, 1024 * 16);

fs.truncate(filename, 1024, function(er) {
if (er) return cb(er);
fs.stat(filename, function(er, stat) {
if (er) return cb(er);
assert.equal(stat.size, 1024);
assert.strictEqual(stat.size, 1024);

fs.truncate(filename, function(er) {
if (er) return cb(er);
fs.stat(filename, function(er, stat) {
if (er) return cb(er);
assert.equal(stat.size, 0);
assert.strictEqual(stat.size, 0);
cb();
});
});
Expand All @@ -82,21 +82,21 @@ function testFtruncate(cb) {
if (er) return cb(er);
fs.stat(filename, function(er, stat) {
if (er) return cb(er);
assert.equal(stat.size, 1024 * 16);
assert.strictEqual(stat.size, 1024 * 16);

fs.open(filename, 'w', function(er, fd) {
if (er) return cb(er);
fs.ftruncate(fd, 1024, function(er) {
if (er) return cb(er);
fs.stat(filename, function(er, stat) {
if (er) return cb(er);
assert.equal(stat.size, 1024);
assert.strictEqual(stat.size, 1024);

fs.ftruncate(fd, function(er) {
if (er) return cb(er);
fs.stat(filename, function(er, stat) {
if (er) return cb(er);
assert.equal(stat.size, 0);
assert.strictEqual(stat.size, 0);
fs.close(fd, cb);
});
});
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