Magent should use the same settings as mongomapper, app config should load first, websocket spec is a little better.

config/app_config.yml

@@ -11,6 +11,8 @@ development:
   socket_port: 8080
   socket_collection_name: 'websocket'
   pubsub_server: 'https://pubsubhubbub.appspot.com/'
+  mongo_host: 'localhost'
+  mongo_post: 27017
 
 test:
   debug: false
@@ -18,6 +20,8 @@ test:
   socket_host: 0.0.0.0
   socket_port: 8081
   pubsub_server: 'https://pubsubhubbub.appspot.com/'
+  mongo_host: 'localhost'
+  mongo_post: 27017
 
 production:
   debug: false
@@ -25,3 +29,5 @@ production:
   socket_host: 0.0.0.0
   socket_port: 8080
   pubsub_server: 'https://pubsubhubbub.appspot.com/'
+  mongo_host: 'localhost'
+  mongo_post: 27017

config/initializers/_mongo.rb

@@ -5,7 +5,7 @@
 if ENV['MONGOHQ_URL']
   MongoMapper.config = {RAILS_ENV => {'uri' => ENV['MONGOHQ_URL']}}
 else
-  MongoMapper.connection = Mongo::Connection.new('localhost', 27017)
+  MongoMapper.connection = Mongo::Connection.new(APP_CONFIG['mongo_host'], APP_CONFIG['mongo_port'])
 end
 
 MongoMapper.database = "diaspora-#{Rails.env}"
@@ -16,3 +16,4 @@ if defined?(PhusionPassenger)
    end
 end
 
+Magent.connection  = Mongo::Connection.new(APP_CONFIG['mongo_host'], APP_CONFIG['mongo_port'])

spec/lib/websocket_spec.rb

@@ -19,18 +19,18 @@ describe Diaspora::WebSocket do
 
   describe 'queuing and dequeuing ' do
     before do
-      @post.socket_to_uid(@user.id, :aspect_ids => @aspect.id)
       @channel = Magent::GenericChannel.new('websocket')
+      @messages = @channel.message_count
+      @post.socket_to_uid(@user.id, :aspect_ids => @aspect.id)
     end
 
     it 'should send the queued job to Magent' do
-      @channel.message_count.should == 1
+      @channel.message_count.should == @messages + 1
     end
 
     it 'should dequeue the job successfully' do
-      messages = @channel.message_count
       @channel.dequeue
-      @channel.message_count.should == messages -1
+      @channel.message_count.should == @messages
     end
   end