diff --git a/spec/foreman/process_spec.rb b/spec/foreman/process_spec.rb
index d8380db..91841c5 100644
--- a/spec/foreman/process_spec.rb
+++ b/spec/foreman/process_spec.rb
@@ -121,6 +121,23 @@ describe Foreman::Process do
         output.should include('777')
       end
 
+      it 'should handle utf8 data' do
+        preserving_env do
+          ENV.clear
+          run_file 'ruby', <<-CODE
+            # encoding: BINARY
+            $stdout.sync = true
+            while true
+              puts "\u65e5\u672c\u8a9e\u6587\u5b57\u5217"
+              puts "\u0915\u0932\u094d\u0907\u0928\u0643\u0637\u0628\u041a\u0430\u043b\u0438\u043d\u0430"
+              puts "\xff\x03"
+              sleep 1
+            end
+          CODE
+        end
+        lambda { output.split("\n") }.should_not raise_error
+      end
+
       it 'should handle arguments' do
         pending
         run %{ sh -c "trap '' TERM; sleep 10" }