Rakefile in tms_client-0.4.1 vs Rakefile in tms_client-0.5.1

@@ -1,13 +1,25 @@
+require "rubygems"
+require "bundler/setup"
 require 'rspec/core/rake_task'
-require 'rubygems/tasks'
-require 'rubygems/tasks/scm'
+unless defined?(JRUBY_VERSION)
+  require 'rubygems/tasks'
+  require 'rubygems/tasks/scm'
+  Gem::Tasks.new
+end
 require 'yard'
 
 YARD::Rake::YardocTask.new do |t|
-  t.files   = ['lib/**/*.rb']
+  t.files = ['lib/**/*.rb']
 end
 
 RSpec::Core::RakeTask.new(:spec)
-Gem::Tasks.new
+
+
+desc "Run spec with all supported versions of active support"
+task :compatibility_spec do
+  [2, 3, 4].each do |n|
+    puts `ACTIVE_SUPPORT_VERSION='~> #{n}' bundle ; rake spec`
+  end
+end
 
 task :default => :spec
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