Edge case for node-inspector NetworkAgent

edge-case.diff

diff --git a/test/NetworkAgent.js b/test/NetworkAgent.js
index f63309b..0d21572 100644
--- a/test/NetworkAgent.js
+++ b/test/NetworkAgent.js
@@ -177,6 +177,15 @@ describe('NetworkAgent', function() {
 
       commandlet.stdin.write('send GET request\n');
     });
+
+    xit('should report queued requests', function(done) {
+      frontendClient.once('Network.requestWillBeSent', function(data) {
+        expect(data.documentURL).to.be.equal('http://127.0.0.1:1023/');
+        done();
+      });
+
+      commandlet.stdin.write('send queued GET request\n');
+    });
   });
 
 
diff --git a/test/fixtures/Commandlet.js b/test/fixtures/Commandlet.js
index 88d4be5..692b569 100644
--- a/test/fixtures/Commandlet.js
+++ b/test/fixtures/Commandlet.js
@@ -17,6 +17,23 @@ var commands = {
   'pause': function() {
     debugger;
   },
+  'send queued GET request': function() {
+    http.get({
+      method: 'GET',
+      host: '127.0.0.1',
+      port: 1023, // would trigger a ECONNREFUSED immediately
+      agent: new http.Agent({
+        // -1 simulates an exhausted connection pool
+        maxSockets: -1
+      })
+    }).end();
+  },
+  'send invalid hostname GET request': function() {
+    http.get({
+      method: 'GET',
+      host: 'invalid.hostname.tld'
+    }).end();
+  },
   'send GET request': function() {
     startServer({
         res: {

realistic.js

// Run with io.js 2.x
'use strict';

var http = require('http');

var addRequest = http.Agent.prototype.addRequest;

http.Agent.prototype.addRequest = function patched_addRequest(req, options) {
  req.once('socket', function() {
    console.log('Got socket for %j', options.pathname);
  });
  return addRequest.apply(this, arguments);
};

var server = http.createServer(function(req, res) {
  setTimeout(function() {
    res.end('ok');
  }, 750);
});

server.listen(0, function() {
  var port = server.address().port;

  function makeRequest(pathname) {
    return new Promise(function(resolve, reject) {
      var req = http.get({
        host: '127.0.0.1', pathname: pathname, port: port, headers: { Host: 'api.reddit.com' }
      }, function(res) {
        res.resume();
        resolve(res.statusCode);
      }).on('error', reject);

      // abort if the request takes >1s
      setTimeout(function() {
        resolve(`ETIMEDOUT: ${pathname}`);
        req.abort();
      }, 1000);
    });
  }

  http.globalAgent.maxSockets = 5;

  var paths = 'abcdefghijklmno'.split('').map(function(letter) {
      return `/${letter}`;
    });

  Promise.all(paths.map(makeRequest)).then(function(codes) {
    console.log(codes);
    server.close();
  }, throwError);
});

function throwError(err) {
  setImmediate(function() { throw err; });
}