test/openssl/test_ssl.rb (test_copy_stream): new test

I was worried r52750 would break IO.copy_stream with things like
OpenSSL sockets which wrap IOs, but require data to be run through
through encryption/decryption filters.  Apparently my worry
was unfounded, but perhaps this test will ensure this case continues
to work.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52751 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Thu Nov 26 07:22:55 2015  Eric Wong  <e@80x24.org>
+
+	* test/openssl/test_ssl.rb (test_copy_stream): new test
+
 Wed Nov 25 21:23:39 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* io.c (copy_stream_body): try to_io conversion before read,

test/openssl/test_ssl.rb

@@ -178,6 +178,20 @@ class OpenSSL::TestSSL < OpenSSL::SSLTestCase
     }
   end
 
+  def test_copy_stream
+    start_server(OpenSSL::SSL::VERIFY_NONE, true) do |server, port|
+      server_connect(port) do |ssl|
+        IO.pipe do |r, w|
+          str = "hello world\n"
+          w.write(str)
+          IO.copy_stream(r, ssl, str.bytesize)
+          IO.copy_stream(ssl, w, str.bytesize)
+          assert_equal str, r.read(str.bytesize)
+        end
+      end
+    end
+  end
+
   def test_client_auth_failure
     vflag = OpenSSL::SSL::VERIFY_PEER|OpenSSL::SSL::VERIFY_FAIL_IF_NO_PEER_CERT
     start_server(vflag, true, :ignore_listener_error => true){|server, port|