remove some hard coding in return value

features/multi-methods.feature

@@ -1,6 +1,6 @@
 Feature: Multi-methods
 
-  Scenario: simple hello, world, one path
+  Scenario Outline: simple one path
     Given the following code
     """
       class HelloWorldReturner
@@ -9,7 +9,7 @@ Feature: Multi-methods
         multi_method :hello_world do
           router {|*args| :hello_world}
           implementation_for :hello_world do
-            'you worked'
+            "<expected_return_value>"
           end
         end
       end
@@ -19,4 +19,9 @@ Feature: Multi-methods
       p = HelloWorldReturner.new
       p.hello_world
     """
-    Then the return should be "you worked"
+    Then the return should be "<expected_return_value>"
+
+    Examples:
+    |expected_return_value|
+    |you worked|
+    |another value|

features/support/env.rb

@@ -1,4 +1,4 @@
 $LOAD_PATH.unshift(File.dirname(__FILE__) + '/../../lib')
-require 'multi-methods'
+require 'multi_methods'
 
 require 'spec/expectations'

lib/multi_methods.rb

@@ -0,0 +1,27 @@
+module MultiMethods
+  def self.included(base)
+    base.extend ClassMethods
+  end
+
+  class ImplementationCapture
+    attr_accessor :methods
+    def initialize
+      @methods = {}
+    end
+    def router
+
+    end
+    def implementation_for symbol, &block
+      @methods[symbol] = block
+    end
+  end
+
+  module ClassMethods
+    def multi_method name, &block
+      implementation = ImplementationCapture.new
+      implementation.instance_eval(&block)
+      define_method name, implementation.methods[:hello_world]
+    end
+  end
+
+end

spec/multi-methods_spec.rb

@@ -1,40 +1,33 @@
 require File.expand_path(File.dirname(__FILE__) + '/spec_helper')
 
 
-class Foo
+class HelloWorldReturner
   include MultiMethods
 
-  multi_method :bar do
+  multi_method :hello_world do
+    router {|*args| :hello_world}
+    implementation_for :hello_world do
+      'you worked'
+    end
   end
 end
 
-class HelloWorldReturner
+class HelloWorldReturner2
   include MultiMethods
 
   multi_method :hello_world do
     router {|*args| :hello_world}
     implementation_for :hello_world do
-      'you worked'
+      'another return'
     end
   end
 end
 
 describe MultiMethods do
-
-  context "getting it compiling" do
-    it "allows me to include and call on a class" do
-      Foo.new
-    end
-  end
-
   context "calling the created method" do
-    it "has the method" do
-      Foo.new.bar
-    end
     it "returns the appropriate value" do
       HelloWorldReturner.new.hello_world.should == "you worked"
+      HelloWorldReturner2.new.hello_world.should == "another return"
     end
   end
-
-
 end

spec/spec_helper.rb

@@ -1,6 +1,6 @@
 $LOAD_PATH.unshift(File.dirname(__FILE__))
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
-require 'multi-methods'
+require 'multi_methods'
 require 'spec'
 require 'spec/autorun'