From 8b161e0a7869f9a1c51f2509a69633bc80c98422 Mon Sep 17 00:00:00 2001
From: Rich Trott <rtrott@gmail.com>
Date: Fri, 19 May 2017 22:14:21 -0700
Subject: [PATCH] test: check number of message events

When a no-op message event handler is used in a test, make it clear what
is expected by using `common.mustCall()` and `common.mustNotCall()`.

PR-URL: https://github.com/nodejs/node/pull/13125
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michael Dawson <mhdawson@ibm.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
---
 test/parallel/test-child-process-fork-ref2.js | 4 ++--
 test/sequential/test-child-process-pass-fd.js | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/parallel/test-child-process-fork-ref2.js b/test/parallel/test-child-process-fork-ref2.js
index 9f59aa344aa2c9..cf50a17ad00c64 100644
--- a/test/parallel/test-child-process-fork-ref2.js
+++ b/test/parallel/test-child-process-fork-ref2.js
@@ -1,5 +1,5 @@
 'use strict';
-require('../common');
+const common = require('../common');
 const fork = require('child_process').fork;
 
 if (process.argv[2] === 'child') {
@@ -8,7 +8,7 @@ if (process.argv[2] === 'child') {
 
   setTimeout(function() {
     console.log('child -> will this keep it alive?');
-    process.on('message', function() { });
+    process.on('message', common.mustNotCall());
   }, 400);
 
 } else {
diff --git a/test/sequential/test-child-process-pass-fd.js b/test/sequential/test-child-process-pass-fd.js
index 2d05407e67b99f..b2481270faf065 100644
--- a/test/sequential/test-child-process-pass-fd.js
+++ b/test/sequential/test-child-process-pass-fd.js
@@ -45,7 +45,7 @@ if (process.argv[2] !== 'child') {
   // the only thing keeping this worker alive will be IPC. This is important,
   // because it means a worker with no parent will have no referenced handles,
   // thus no work to do, and will exit immediately, preventing process leaks.
-  process.on('message', common.noop);
+  process.on('message', common.mustCall());
 
   const server = net.createServer((c) => {
     process.once('message', function(msg) {