lib/spank/ioc.rb in spank-0.0.1385937112 vs lib/spank/ioc.rb in spank-0.0.1393558686

@@ -1,11 +1,24 @@
 module Spank
   class IOC
-    def self.bind_to(container)
-      @@container = container
-    end
+    class << self
+      def bind_to(container)
+        @@container = container
+      end
 
-    def self.resolve(symbol)
-      @@container.resolve(symbol)
+      def resolve(symbol)
+        raise create_error unless class_variable_defined?(:@@container)
+        @@container.resolve(symbol)
+      end
+
+      def unbind
+        remove_class_variable(:@@container) if class_variable_defined?(:@@container)
+      end
+
+      private
+
+      def create_error
+        ContainerError.new("Spank::IOC.bind_to(container) has not been called.")
+      end
     end
   end
 end