test: regression test for cluser.setupMaster()

Tests for the behaviour in v0.10.x which allows process.argv changes
to be honoured by cluster.setupMaster().

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

test/simple/test-cluster-setup-master-argv.js

@@ -0,0 +1,38 @@
+// 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 assert = require('assert');
+var cluster = require('cluster');
+
+setTimeout(assert.fail.bind(assert, 'setup not emitted'), 1000).unref();
+
+cluster.on('setup', function() {
+  var clusterArgs = cluster.settings.args;
+  var realArgs = process.argv;
+  assert.equal(clusterArgs[clusterArgs.length - 1],
+               realArgs[realArgs.length - 1]);
+});
+
+assert(process.argv[process.argv.length - 1] !== 'OMG,OMG');
+process.argv.push('OMG,OMG');
+process.argv.push('OMG,OMG');
+cluster.setupMaster();