added RSpec and RSpec on Rails

vendor/gems/rspec-1.1.2/lib/spec/extensions/class.rb

@@ -0,0 +1,24 @@
+class Class
+  # Creates a new subclass of self, with a name "under" our own name.
+  # Example:
+  #
+  #   x = Foo::Bar.subclass('Zap'){}
+  #   x.name # => Foo::Bar::Zap_1
+  #   x.superclass.name # => Foo::Bar
+  def subclass(base_name, &body)
+    klass = Class.new(self)
+    class_name = "#{base_name}_#{class_count!}"
+    instance_eval do
+      const_set(class_name, klass)
+    end
+    klass.instance_eval(&body)
+    klass
+  end
+
+  private
+  def class_count!
+    @class_count ||= 0
+    @class_count += 1
+    @class_count
+  end
+end