pjb3 · February 6, 2010 21:20 · Feb 6, 2010
diff --git a/floppy.rb b/floppy.rb
@@ -0,0 +1,40 @@
+class Floppy
+  def method_missing(method, *args)
+    super unless args.length > 0 && method.to_s[-1..-1] == "="
+
+    if args.first.is_a?(Proc)
+      (class << self; self; end).class_eval do  
+        define_method(method.to_s[0..-2].to_sym, args.first)  
+      end  
+    else
+      (class << self; self; end).send(:attr_accessor, method.to_s[0...-1])
+      send(method, args.first)
+    end
+  end  
+end
+
+require 'test/unit'
+
+class FloppyTest < Test::Unit::TestCase
+
+  def setup
+    @foo = Floppy.new
+  end
+
+  def test_assign_proc_adds_method
+    @foo.bar = lambda { "bar" }
+    assert_equal "bar", @foo.bar
+  end
+
+  def test_assign_object_add_attr
+    @foo.name = "Foo"
+    assert_equal "Foo", @foo.name
+  end
+
+  def test_method_method_still_works
+    assert_raise NoMethodError do
+      @foo.alakazam
+    end
+  end
+
+end