Fixing RSpec deprecation warning 'mock is deprecated. Use double inst…

…ead.'

spec/command_spec.rb

@@ -50,21 +50,21 @@
       end
 
       it "calling the #call method by default when an object is called" do
-        object = mock 'Object'
+        object = double 'Object'
         object.should_receive(:call).once
         @command.when_called object
         @command.run 'foo'        
       end
 
       it "should allow #action as an alias to #when_called" do
-        object = mock 'Object'
+        object = double 'Object'
         object.should_receive(:call).once
         @command.action object
         @command.run 'foo'
       end
 
       it "calling an arbitrary method when an object is called" do
-        object = mock 'Object'
+        object = double 'Object'
         object.should_receive(:foo).once
         @command.when_called object, :foo
         @command.run 'foo'