Ensure shared example groups are reset after a run (as example groups…

… are).

Changelog.md

@@ -5,6 +5,7 @@ Bug fixes
 * Restore `--full_backtrace` option
 * Ensure that values passed to `config.filter_run` are respected when running
   over DRb (using spork).
+* Ensure shared example groups are reset after a run (as example groups are).
 
 ### 2.8.0 / 2012-01-04
 

lib/rspec/core/world.rb

@@ -4,12 +4,13 @@ class World
 
       include RSpec::Core::Hooks
 
-      attr_reader :example_groups, :filtered_examples, :wants_to_quit
-      attr_writer :wants_to_quit
+      attr_reader :example_groups, :shared_example_groups, :filtered_examples
+      attr_accessor :wants_to_quit
 
       def initialize(configuration=RSpec.configuration)
         @configuration = configuration
         @example_groups = [].extend(Extensions::Ordered)
+        @shared_example_groups = {}
         @filtered_examples = Hash.new { |hash,group|
           hash[group] = begin
             examples = group.examples.dup
@@ -22,6 +23,7 @@ def initialize(configuration=RSpec.configuration)
 
       def reset
         example_groups.clear
+        shared_example_groups.clear
       end
 
       def filter_manager
@@ -45,12 +47,10 @@ def configure_group(group)
         @configuration.configure_group(group)
       end
 
-      def shared_example_groups
-        @shared_example_groups ||= {}
-      end
-
       def example_count
-        example_groups.collect {|g| g.descendants}.flatten.inject(0) { |sum, g| sum += g.filtered_examples.size }
+        example_groups.collect {|g| g.descendants}.flatten.inject(0) do |sum, g|
+          sum += g.filtered_examples.size
+        end
       end
 
       def preceding_declaration_line(filter_line)

spec/rspec/core/world_spec.rb

@@ -64,7 +64,7 @@ module RSpec::Core
       context "with two exaples and the second example is registre first" do
         let(:second_group_declaration_line) { second_group.metadata[:example_group][:line_number] }
 
-        before do 
+        before do
           world.register(second_group)
           world.register(group)
         end