--- /dev/null
+#!/usr/bin/env ruby
+
+#
+# if run as script, load the file as library while starting irb
+#
+if __FILE__ == $0
+ irb = RUBY_PLATFORM =~ /(:?mswin|mingw)/ ? 'irb.bat' : 'irb'
+ ENV['ADAPTER'] = ARGV[0]
+ exec "#{irb} -f -r #{$0} --simple-prompt"
+end
+
+#
+# check if the given adapter is supported (default: mysql)
+#
+adapters = %w[mysql sqlite oracle oracle_enhanced postgresql ibm_db]
+adapter = ENV['ADAPTER'] || 'mysql'
+unless adapters.include? adapter
+ puts "Usage: #{__FILE__} <adapter>"
+ puts ''
+ puts 'Adapters: '
+ puts adapters.map{ |adapter| " #{adapter}" }.join("\n")
+ exit 1
+end
+
+#
+# load all necessary libraries
+#
+require 'rubygems'
+require 'local/database_connections'
+
+$LOAD_PATH.unshift 'lib'
+
+begin
+ require 'local/paths'
+ $LOAD_PATH.unshift "#{ENV['EDGE_RAILS_DIR']}/activerecord/lib" if ENV['EDGE_RAILS_DIR']
+ $LOAD_PATH.unshift "#{ENV['EDGE_RAILS_DIR']}/activesupport/lib" if ENV['EDGE_RAILS_DIR']
+rescue
+end
+
+require 'active_support'
+require 'active_record'
+
+require "test/connections/native_#{adapter}/connection"
+require 'composite_primary_keys'
+
+PROJECT_ROOT = File.join(File.dirname(__FILE__), '..')
+Dir[File.join(PROJECT_ROOT,'test/fixtures/*.rb')].each { |model| require model }
+