Rakefile in digest-crc-0.6.1 vs Rakefile in digest-crc-0.6.2

@@ -21,22 +21,35 @@
 CLEAN.include('ext/digest/crc*/extconf.h')
 CLEAN.include('ext/digest/crc*/Makefile')
 CLEAN.include('ext/digest/crc*/*.o')
 CLEAN.include('ext/digest/crc*/*.so')
 
+file 'spec/integration/docker/digest-crc.gem' do |t|
+  sh "gem build -o #{t.name} digest-crc.gemspec"
+end
+
 require 'rspec/core/rake_task'
 namespace :spec do
-  RSpec::Core::RakeTask.new(:pure)
+  RSpec::Core::RakeTask.new(:pure) do |t|
+    t.exclude_pattern = 'spec/integration/*_spec.rb'
+  end
   task :pure => :clean
 
   if RUBY_ENGINE == 'ruby'
-    RSpec::Core::RakeTask.new(:c_exts)
+    RSpec::Core::RakeTask.new(:c_exts) do |t|
+      t.exclude_pattern = 'spec/integration/*_spec.rb'
+    end
     task :c_exts => 'build:c_exts'
   end
+
+  RSpec::Core::RakeTask.new(:integration) do |t|
+    t.pattern = 'spec/integration/*_spec.rb'
+  end
 end
 
 task :spec => 'spec:pure'
 task :spec => 'spec:c_exts' if RUBY_ENGINE == 'ruby'
+
 task :test => :spec
 task :default => :spec
 
 require 'yard'
 YARD::Rake::YardocTask.new