move from RAILS_ROOT to Rails.root

README

@@ -67,15 +67,15 @@ In your test_helper.rb/spec_helper.rb:
     require 'dataset'
     class MiniTest::Unit::TestCase
       include Dataset
-      datasets_directory "#{RAILS_ROOT}/spec/datasets"
+      datasets_directory "#{Rails.root}/spec/datasets"
     end
 
 If you don't use rspec_on_rails, or you have specs that aren't of the RailsExampleGroup type, you should do this in spec_helper.rb:
 
     require 'dataset'
     class Spec::Example::ExampleGroup
       include Dataset
-      datasets_directory "#{RAILS_ROOT}/spec/datasets"
+      datasets_directory "#{Rails.root}/spec/datasets"
     end
 
 If you were a user of the Scenarios plugin, and want to do as little as possible to get going (assumes you are using rspec_on_rails):
@@ -93,7 +93,7 @@ If you were a user of the Scenarios plugin, and want to do as little as possible
         @suffix ||= 'Scenario'
       end
     end
-    Dataset::Resolver.default = ScenariosResolver.new("#{RAILS_ROOT}/spec/scenarios")
+    Dataset::Resolver.default = ScenariosResolver.new("#{Rails.root}/spec/scenarios")
 
 
 == Credits

lib/dataset/tasks.rb

@@ -8,8 +8,8 @@
       context = Class.new do
         extend Dataset::ContextClassMethods
         datasets_directory [
-          "#{RAILS_ROOT}/spec/datasets",
-          "#{RAILS_ROOT}/test/datasets"
+          "#{Rails.root}/spec/datasets",
+          "#{Rails.root}/test/datasets"
         ].detect {|path| File.directory?(path)}
         add_dataset *dataset_names
         dataset_session.load_datasets_for self

spec/spec_helper.rb

@@ -17,9 +17,15 @@ def with_sandboxed_options
 end
 
 $LOAD_PATH << SPEC_ROOT
-RAILS_ROOT = "#{SPEC_ROOT}/.."
-$LOAD_PATH << "#{RAILS_ROOT}/lib"
-RAILS_LOG_FILE = "#{RAILS_ROOT}/log/test.log"
+unless defined?(Rails)
+  Rails = Module.new do
+    def self.root
+      SPEC_ROOT + '/..'
+    end
+  end
+end
+$LOAD_PATH << "#{Rails.root}/lib"
+RAILS_LOG_FILE = "#{Rails.root}/log/test.log"
 SQLITE_DATABASE = "#{SPEC_ROOT}/sqlite3.db"
 
 require 'fileutils'