- Added test relative to the fix in rev #305346.

Author: cataphract

ext/standard/tests/file/stream_enclosed.phpt

@@ -0,0 +1,20 @@
+--TEST--
+Unexposed/leaked stream encloses another stream
+--SKIPIF--
+<?php
+if (!function_exists('leak_variable')) die("skip only debug builds");
+--FILE--
+<?php
+$s = fopen('php://temp/maxmemory=1024','wb+');
+
+$t = fopen('php://temp/maxmemory=1024','wb+');
+
+/* force conversion of inner stream to STDIO. */
+$i = 0;
+while ($i++ < 5000) {
+    fwrite($t, str_repeat('a',1024));
+}
+
+leak_variable($s, true);
+leak_variable($t, true);
+--EXPECT--