Rakefile in clearance-0.11.1 vs Rakefile in clearance-0.11.2

@@ -5,18 +5,23 @@
 require 'rake'
 require 'rake/gempackagetask'
 require 'cucumber/rake/task'
 require 'diesel/tasks'
 require 'rspec/core/rake_task'
+require 'appraisal'
 
+desc "Default: run the specs and cucumber features"
+task :default => [:all]
+
+desc 'Test the plugin under all supported Rails versions.'
+task :all => ["appraisal:install"] do |t|
+  exec('rake appraisal spec cucumber')
+end
+
 RSpec::Core::RakeTask.new do |t|
   t.pattern = 'spec/**/*_spec.rb'
 end
 
 Cucumber::Rake::Task.new(:cucumber) do |t|
   t.fork = true
   t.cucumber_opts = ['--format', (ENV['CUCUMBER_FORMAT'] || 'progress')]
 end
-
-desc "Default: run the specs and cucumber features"
-task :default => [:spec, :cucumber]
-