on init, connect to AWS and check for the AS group

spec/support/fake_auto_scaling.rb

@@ -2,5 +2,31 @@ module AWS
   class FakeAutoScaling
     def initialize
     end
+
+    def groups
+      @groups ||= GroupCollection.new
+    end
+
+    class GroupCollection
+      def initialize
+        @groups = {}
+      end
+
+      def [](name)
+        @groups[name]
+      end
+
+      def create(name, options = {})
+        @groups[name] = Group.new name
+      end
+    end
+
+    class Group
+      attr_reader :name
+
+      def initialize(name)
+        @name = name
+      end
+    end
   end
 end