Add couchbase with modifications, formalize broadcaster and make testable and some other stuff

spec/models/supplier_spec.rb

@@ -1,62 +1,67 @@
 require 'spec_helper'
 
 describe Supplier do
-  before :each do
-    @supplier = build :supplier
-  end
+  let(:supplier){ build :supplier }
   # property open
   describe :open do
     it 'should be false by default' do
-      @supplier.open.should == false
+      supplier.open.should == false
     end
 
     it 'should not be open? by default' do
-      @supplier.open?.should == false
+      supplier.open?.should == false
     end
 
     it 'should be closed? by default' do
-      @supplier.closed?.should == true
+      supplier.closed?.should == true
     end
 
     describe :mark_as_open! do
       before :each do
-        @supplier.mark_as_open!
+        supplier.mark_as_open!
       end
       it 'should be persisted in the database' do
-        @supplier.reload
-        @supplier.open.should == true
+        supplier.reload
+        supplier.open.should == true
       end
 
       it 'should be open?' do
-        @supplier.open?.should == true
+        supplier.open?.should == true
       end
 
       it 'should not be closed?' do
-        @supplier.closed?.should == false
+        supplier.closed?.should == false
       end
 
     end
 
     describe :mark_as_closed! do
       before :each do
-        @supplier.mark_as_open!
-        @supplier.mark_as_closed!
+        supplier.mark_as_open!
+        supplier.mark_as_closed!
       end
 
       it 'should be persisted in the database' do
-        @supplier.reload
-        @supplier.open.should == false
+        supplier.reload
+        supplier.open.should == false
       end
 
       it 'should be open?' do
-        @supplier.open?.should == false
+        supplier.open?.should == false
       end
 
       it 'should not be closed?' do
-        @supplier.closed?.should == true
+        supplier.closed?.should == true
       end
     end
 
   end
 
+  describe '#decrement_orders_delivered_count!' do
+    it 'decreases orders_delivered' do
+      Qwaiter::Counter.set "supplier:#{supplier.id}:orders_delivered", 9
+      supplier.decrement_orders_delivered_count!.should == 8
+    end
+  end
+
 end