diff --git a/test/testutils.js b/test/testutils.js
index e2cd76520..a67472606 100644
--- a/test/testutils.js
+++ b/test/testutils.js
@@ -13,13 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable no-var */
 
 "use strict";
 
-var fs = require("fs");
-var path = require("path");
-var rimrafSync = require("rimraf").sync;
+const fs = require("fs");
+const path = require("path");
+const rimrafSync = require("rimraf").sync;
 
 exports.removeDirSync = function removeDirSync(dir) {
   fs.readdirSync(dir); // Will throw if dir is not a directory
@@ -29,14 +28,14 @@ exports.removeDirSync = function removeDirSync(dir) {
 };
 
 exports.copySubtreeSync = function copySubtreeSync(src, dest) {
-  var files = fs.readdirSync(src);
+  const files = fs.readdirSync(src);
   if (!fs.existsSync(dest)) {
     fs.mkdirSync(dest);
   }
   files.forEach(function (filename) {
-    var srcFile = path.join(src, filename);
-    var file = path.join(dest, filename);
-    var stats = fs.statSync(srcFile);
+    const srcFile = path.join(src, filename);
+    const file = path.join(dest, filename);
+    const stats = fs.statSync(srcFile);
     if (stats.isDirectory()) {
       copySubtreeSync(srcFile, file);
     } else {
@@ -49,8 +48,8 @@ exports.ensureDirSync = function ensureDirSync(dir) {
   if (fs.existsSync(dir)) {
     return;
   }
-  var parts = dir.split(path.sep),
-    i = parts.length;
+  const parts = dir.split(path.sep);
+  let i = parts.length;
   while (i > 1 && !fs.existsSync(parts.slice(0, i - 1).join(path.sep))) {
     i--;
   }