diff --git a/tests/output/ob_016.phpt b/tests/output/ob_016.phpt
new file mode 100644
index 00000000000..3adbca17b84
--- /dev/null
+++ b/tests/output/ob_016.phpt
@@ -0,0 +1,20 @@
+--TEST--
+output buffering - unicode/binary
+--FILE--
+<?php
+declare(encoding="latin1");
+ini_set("unicode.output_encoding", "utf8");
+
+ob_start();
+echo "-aäoöuüsß-";
+$s = ob_get_clean();
+
+var_dump($s);
+var_dump(unicode_decode($s, unicode_semantics()?"utf8":"latin1"));
+?>
+--EXPECTF--
+string(10) "%s"
+unicode(10) "%s"
+--UEXPECTF--
+string(14) "%s"
+unicode(10) "%s"