[test] Add core `test-http` test

Modifications:

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

test/core/simple/test-http.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 url = require('url');
+
+function p(x) {
+  common.error(common.inspect(x));
+}
+
+var responses_sent = 0;
+var responses_recvd = 0;
+var body0 = '';
+var body1 = '';
+
+var server = http.Server(function(req, res) {
+  if (responses_sent == 0) {
+    assert.equal('GET', req.method);
+    assert.equal('/hello', url.parse(req.url).pathname);
+
+    console.dir(req.headers);
+    assert.equal(true, 'accept' in req.headers);
+    assert.equal('*/*', req.headers['accept']);
+
+    assert.equal(true, 'foo' in req.headers);
+    assert.equal('bar', req.headers['foo']);
+  }
+
+  if (responses_sent == 1) {
+    assert.equal('POST', req.method);
+    assert.equal('/world', url.parse(req.url).pathname);
+    this.close();
+  }
+
+  req.on('end', function() {
+    res.writeHead(200, {'Content-Type': 'text/plain'});
+    res.write('The path was ' + url.parse(req.url).pathname);
+    res.end();
+    responses_sent += 1;
+  });
+
+  //assert.equal('127.0.0.1', res.connection.remoteAddress);
+});
+server.listen(common.PORT);
+
+server.on('listening', function() {
+  var agent = new http.Agent({ port: common.PROXY_PORT, maxSockets: 1 });
+  http.get({
+    port: common.PROXY_PORT,
+    path: '/hello',
+    headers: {'Accept': '*/*', 'Foo': 'bar'},
+    agent: agent
+  }, function(res) {
+    assert.equal(200, res.statusCode);
+    responses_recvd += 1;
+    res.setEncoding('utf8');
+    res.on('data', function(chunk) { body0 += chunk; });
+    common.debug('Got /hello response');
+  });
+
+  setTimeout(function() {
+    var req = http.request({
+      port: common.PROXY_PORT,
+      method: 'POST',
+      path: '/world',
+      agent: agent
+    }, function(res) {
+      assert.equal(200, res.statusCode);
+      responses_recvd += 1;
+      res.setEncoding('utf8');
+      res.on('data', function(chunk) { body1 += chunk; });
+      common.debug('Got /world response');
+    });
+    req.end();
+  }, 1);
+});
+
+process.on('exit', function() {
+  common.debug('responses_recvd: ' + responses_recvd);
+  assert.equal(2, responses_recvd);
+
+  common.debug('responses_sent: ' + responses_sent);
+  assert.equal(2, responses_sent);
+
+  assert.equal('The path was /hello', body0);
+  assert.equal('The path was /world', body1);
+});
+