1 files changed, 5 insertions, 16 deletions
diff --git a/test/parallel/test-child-process-exec-buffer.js b/test/parallel/test-child-process-exec-buffer.js
index 6f19ac859a..47879c05b2 100644
--- a/test/parallel/test-child-process-exec-buffer.js
+++ b/test/parallel/test-child-process-exec-buffer.js
@@ -1,33 +1,22 @@
 'use strict';
-require('../common');
+const common = require('../common');
 var assert = require('assert');
 var exec = require('child_process').exec;
 var os = require('os');
-
-var success_count = 0;
-
 var str = 'hello';
 
 // default encoding
-exec('echo ' + str, function(err, stdout, stderr) {
+exec('echo ' + str, common.mustCall(function(err, stdout, stderr) {
   assert.ok('string', typeof stdout, 'Expected stdout to be a string');
   assert.ok('string', typeof stderr, 'Expected stderr to be a string');
   assert.equal(str + os.EOL, stdout);
-
-  success_count++;
-});
+}));
 
 // no encoding (Buffers expected)
 exec('echo ' + str, {
   encoding: null
-}, function(err, stdout, stderr) {
+}, common.mustCall(function(err, stdout, stderr) {
   assert.ok(stdout instanceof Buffer, 'Expected stdout to be a Buffer');
   assert.ok(stderr instanceof Buffer, 'Expected stderr to be a Buffer');
   assert.equal(str + os.EOL, stdout.toString());
-
-  success_count++;
-});
-
-process.on('exit', function() {
-  assert.equal(2, success_count);
-});
+}));