Add big proxy failing test

GH-77. Code by Robert Newson <robert.newson@gmail.com>

test/pummel/test-http-big-proxy-responses.js

@@ -0,0 +1,63 @@
+require('../common');
+var sys = require("sys"),
+fs = require("fs"),
+http = require("http"),
+url = require("url");
+
+// Produce a very large response.
+var chargen = http.createServer(function (req, res) {
+    var chunk = '01234567890123456789';
+    var len = req.headers['x-len'];
+    res.writeHead(200, {"transfer-encoding":"chunked"});
+    for (var i=0; i<len; i++) {
+  res.write(chunk);
+    }
+    res.end();
+});
+chargen.listen(9000);
+
+// Proxy to the chargen server.
+var proxy = http.createServer(function (req, res) {
+    var proxy_req = http.createClient(9000, 'localhost')
+  .request(req.method, req.url, req.headers);
+    proxy_req.addListener('response', function(proxy_res) {
+  res.writeHead(proxy_res.statusCode, proxy_res.headers);
+  proxy_res.addListener('data', function(chunk) {
+      res.write(chunk);
+  });
+  proxy_res.addListener('end', function() {
+      res.end();
+  });
+    });
+    proxy_req.end();
+});
+proxy.listen(9001);
+
+var done = false; 
+
+function call_chargen(list) {
+  if (list.length > 0) {
+    sys.debug("calling chargen for " + list[0] + " chunks.");
+    var req = http.createClient(9001, 'localhost').request('/', {'x-len': list[0]});
+    req.addListener('response', function(res) {
+      res.addListener('end', function() {
+        sys.debug("end for " + list[0] + " chunks.");
+        list.shift();
+        call_chargen(list);
+      });
+    });
+    req.end();
+  }
+  else {
+    sys.puts("End of list.");
+      proxy.end();
+      chargen.end();
+      done = true;
+  }
+}
+
+call_chargen([ 100, 1000, 10000, 100000, 1000000 ]);
+
+process.addListener('exit', function () {
+  assert.ok(done);
+});