test: verify IPC messages are emitted on next tick

The test in this commit runs correctly if IPC messages are properly consumed and emitted. Otherwise, the test times out. Fixes: #6561 PR-URL: #6909 Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Colin Ihrig <[email protected]>

Author: santigimeno

test/parallel/test-cluster-ipc-throw.js

@@ -0,0 +1,23 @@
+'use strict';
+constcommon=require('../common');
+consthttp=require('http');
+constcluster=require('cluster');
+
+cluster.schedulingPolicy=cluster.SCHED_RR;
+
+constserver=http.createServer();
+
+if(cluster.isMaster){
+server.listen(common.PORT);
+constworker=cluster.fork();
+worker.on('exit',common.mustCall(()=>{
+server.close();
+}));
+}else{
+process.on('uncaughtException',common.mustCall((e)=>{}));
+server.listen(common.PORT);
+server.on('error',common.mustCall((e)=>{
+cluster.worker.disconnect();
+throwe;
+}));
+}