test: check RR scheduler has necessary methods

The RR cluster scheduler replaces the normal StreamWrap handle. Because
of this the AsyncListener method failed to be in place when domains were
in use.

The issue was resolved in 828f145 by reverting having domains use
AsyncListeners.

Signed-off-by: Trevor Norris <trev.norris@gmail.com>

test/simple/test-cluster-rr-domain-listen.js

@@ -0,0 +1,51 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var common = require('../common');
+var cluster = require('cluster');
+var domain = require('domain');
+
+// RR is the default for v0.11.9+ so the following line is redundant:
+// cluster.schedulingPolicy = cluster.SCHED_RR;
+
+if (cluster.isWorker) {
+  var d = domain.create();
+  d.run(function () { });
+
+  var http = require('http');
+  http.Server(function() { }).listen(common.PORT, '127.0.0.1');
+
+} else if (cluster.isMaster) {
+  var worker;
+
+  //Kill worker when listening
+  cluster.on('listening', function() {
+    worker.kill();
+  });
+
+  //Kill process when worker is killed
+  cluster.on('exit', function() {
+    process.exit(0);
+  });
+
+  //Create worker
+  worker = cluster.fork();
+}