@@ -0,0 +1,46 @@
+// 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 assert = require('assert');
+var child_process = require('child_process');
+var spawn = child_process.spawn;
+var fork = child_process.fork;
+
+if (process.argv[2] === 'fork') {
+  process.stdout.write(JSON.stringify(process.execArgv));
+  process.exit();
+} else if (process.argv[2] === 'child') {
+  fork(__filename, ['fork']);
+} else {
+  var execArgv = ['--harmony_proxies', '--max-stack-size=0'];
+  var args = [__filename, 'child', 'arg0'];
+
+  var child = spawn(process.execPath, execArgv.concat(args));
+  var out = '';
+
+  child.stdout.on('data', function (chunk) {
+    out += chunk;
+  });
+
+  child.on('exit', function () {
+    assert.deepEqual(JSON.parse(out), execArgv);
+  });
+}