Rakefile in better_ipaddr-0.5.0 vs Rakefile in better_ipaddr-0.6.0

@@ -5,6 +5,11 @@
   t.libs << "spec"
   t.libs << "lib"
   t.test_files = FileList["spec/**/*_spec.rb"]
 end
 
-task default: :spec
+Rake::TestTask.new(:spec_ipaddr) do |t|
+  t.libs << "lib"
+  t.test_files = FileList["spec/extra/**/test_ipaddr.rb"]
+end
+
+task default: %i[spec spec_ipaddr]