[test] Add core `test-http-upgrade-server2` test

Modifications:

  * make client connect to `PROXY_PORT` instead of `PORT`

test/core/simple/test-http-upgrade-server2.js

+// 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 http = require('http');
+var net = require('net');
+
+var server = http.createServer(function(req, res) {
+  common.error('got req');
+  throw new Error('This shouldn\'t happen.');
+});
+
+server.on('upgrade', function(req, socket, upgradeHead) {
+  common.error('got upgrade event');
+  // test that throwing an error from upgrade gets
+  // is uncaught
+  throw new Error('upgrade error');
+});
+
+var gotError = false;
+
+process.on('uncaughtException', function(e) {
+  common.error('got \'clientError\' event');
+  assert.equal('upgrade error', e.message);
+  gotError = true;
+  process.exit(0);
+});
+
+
+server.listen(common.PORT, function() {
+  var c = net.createConnection(common.PROXY_PORT);
+
+  c.on('connect', function() {
+    common.error('client wrote message');
+    c.write('GET /blah HTTP/1.1\r\n' +
+            'Upgrade: WebSocket\r\n' +
+            'Connection: Upgrade\r\n' +
+            '\r\n\r\nhello world');
+  });
+
+  c.on('end', function() {
+    c.end();
+  });
+
+  c.on('close', function() {
+    common.error('client close');
+    server.close();
+  });
+});
+
+process.on('exit', function() {
+  assert.ok(gotError);
+});