test: add ES6 and strictEqual to test-fs-truncate

- use const and let for variables - replace assert.equal with assert.strictEqual PR-URL: #10167 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Italo A. Casas <[email protected]>

Author: edsadr

test/parallel/test-fs-truncate.js

@@ -1,43 +1,43 @@
 'use strict';
-varcommon=require('../common');
-varassert=require('assert');
-varpath=require('path');
-varfs=require('fs');
-vartmp=common.tmpDir;
-varfilename=path.resolve(tmp,'truncate-file.txt');
-vardata=Buffer.alloc(1024*16,'x');
+constcommon=require('../common');
+constassert=require('assert');
+constpath=require('path');
+constfs=require('fs');
+consttmp=common.tmpDir;
+constfilename=path.resolve(tmp,'truncate-file.txt');
+constdata=Buffer.alloc(1024*16,'x');
 
 common.refreshTmpDir();
 
-varstat;
+letstat;
 
 // 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);
-varfd=fs.openSync(filename,'r+');
+constfd=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);
 
@@ -54,19 +54,19 @@ function testTruncate(cb){
 if(er)returncb(er);
 fs.stat(filename,function(er,stat){
 if(er)returncb(er);
-assert.equal(stat.size,1024*16);
+assert.strictEqual(stat.size,1024*16);
 
 fs.truncate(filename,1024,function(er){
 if(er)returncb(er);
 fs.stat(filename,function(er,stat){
 if(er)returncb(er);
-assert.equal(stat.size,1024);
+assert.strictEqual(stat.size,1024);
 
 fs.truncate(filename,function(er){
 if(er)returncb(er);
 fs.stat(filename,function(er,stat){
 if(er)returncb(er);
-assert.equal(stat.size,0);
+assert.strictEqual(stat.size,0);
 cb();
 });
 });
@@ -82,21 +82,21 @@ function testFtruncate(cb){
 if(er)returncb(er);
 fs.stat(filename,function(er,stat){
 if(er)returncb(er);
-assert.equal(stat.size,1024*16);
+assert.strictEqual(stat.size,1024*16);
 
 fs.open(filename,'w',function(er,fd){
 if(er)returncb(er);
 fs.ftruncate(fd,1024,function(er){
 if(er)returncb(er);
 fs.stat(filename,function(er,stat){
 if(er)returncb(er);
-assert.equal(stat.size,1024);
+assert.strictEqual(stat.size,1024);
 
 fs.ftruncate(fd,function(er){
 if(er)returncb(er);
 fs.stat(filename,function(er,stat){
 if(er)returncb(er);
-assert.equal(stat.size,0);
+assert.strictEqual(stat.size,0);
 fs.close(fd,cb);
 });
 });