fix(disposition): only send disposition to relevant links by role

Previously we ignored the role of the incoming disposition frame,
and forwarded these frames to the _dispositionRecieved method of
all links we knew about. This patch corrects this behavior, and
includes an integration test verifying that frames are forwarded
to the appropriate link types.

lib/session.js

@@ -119,9 +119,11 @@ function Session(conn) {
   this._allocatedHandles = {};
   this._linksByName = {};
   this._linksByRemoteHandle = {};
-  this._senderLinks = [];
   this._deliveryTag = 1;
 
+  this._senderLinks = [];
+  this._receiverLinks = [];
+
   var self = this;
   var stateMachine = {
     'UNMAPPED': {
@@ -216,6 +218,7 @@ Session.prototype.attachLink = function(linkPolicy) {
     this._senderLinks.push(link);
   } else {
     link = new ReceiverLink(this, policy.options.handle, policy);
+    this._receiverLinks.push(link);
   }
 
   this._allocatedHandles[policy.options.handle] = link;
@@ -414,9 +417,12 @@ Session.prototype._handleDisposition = function(frame) {
     state: frame.state
   };
 
-  _.values(this._linksByName).forEach(function(link) {
-    link._dispositionReceived(disposition);
-  });
+  var dispositionHandler = function(l) { l._dispositionReceived(disposition); };
+  if (frame.role === constants.linkRole.sender) {
+    this._receiverLinks.forEach(dispositionHandler);
+  } else {
+    this._senderLinks.forEach(dispositionHandler);
+  }
 
   this.emit(Session.DispositionReceived, disposition);
 };

test/integration/qpid/disposition.test.js

@@ -1,10 +1,14 @@
 'use strict';
-var AMQPClient = require('../../..').Client,
+var Promise = require('bluebird'),
+    AMQPClient = require('../../..').Client,
+    BrokerAgent = require('qmf2'),
+
+    Session = require('../../../lib/session'),
+
     c = require('../../../').Constants,
-    Promise = require('bluebird'),
+
     config = require('./config'),
-    expect = require('chai').expect,
-    BrokerAgent = require('qmf2');
+    expect = require('chai').expect;
 
 var test = {};
 describe('QPID', function() {
@@ -101,5 +105,28 @@ describe('Disposition', function() {
       });
   });
 
+  it('should forward disposition frames by link role', function(done) {
+    var queueName = 'test.disposition.queue';
+    var called = { receiver: false, sender: false };
+    return test.client.connect(config.address)
+      .then(function() {
+        return Promise.all([
+          test.client.createReceiver(queueName),
+          test.client.createSender(queueName)
+        ]);
+      })
+      .spread(function(receiver, sender) {
+        receiver._dispositionReceived = function(d) { called.receiver = true; };
+        sender._dispositionReceived = function(d) { called.sender = true; };
+
+        test.client._session.on(Session.DispositionReceived, function(d) {
+          expect(called).to.eql({ receiver: false, sender: true });
+          done();
+        });
+
+        return sender.send('test message');
+      });
+  });
+
 });
 });