attempt of a test

Author: devnexen

ext/pgsql/tests/gh21575.phpt

@@ -0,0 +1,67 @@
+--TEST--
+GH-21575 - Memory leak with notices in pgsql persistent connections.
+--EXTENSIONS--
+pgsql
+--SKIPIF--
+<?php
+include("inc/skipif.inc");
+
+_skip_lc_messages($conn);
+
+$res = @pg_query($conn, "CREATE OR REPLACE FUNCTION test_notice() RETURNS boolean AS '
+begin
+        RAISE NOTICE ''test notice'';
+        return ''t'';
+end;
+' LANGUAGE plpgsql;");
+if (!$res) die('skip PLPGSQL not available');
+?>
+--INI--
+pgsql.ignore_notice=0
+--FILE--
+<?php
+include('inc/config.inc');
+include('inc/lcmess.inc');
+
+$db = pg_pconnect($conn_str);
+_set_lc_messages($db);
+
+pg_query($db, "CREATE OR REPLACE FUNCTION test_notice() RETURNS boolean AS '
+begin
+        RAISE NOTICE ''test notice'';
+        return ''t'';
+end;
+' LANGUAGE plpgsql;");
+
+/* Trigger a notice so the notice handler writes into the link handle. */
+pg_query($db, 'SET client_min_messages TO NOTICE;');
+pg_query($db, 'SELECT test_notice()');
+var_dump(pg_last_notice($db));
+pg_close($db);
+
+/* Reconnect with PGSQL_CONNECT_FORCE_NEW which calls PQreset().
+ * Before the fix, notices emitted during PQreset (e.g. collation version
+ * mismatch) would write into the stale (freed) link handle, causing a
+ * memory leak. We cannot reliably trigger such notices in a portable test,
+ * but this exercises the persistent reconnect + notice handling path. */
+$db2 = pg_pconnect($conn_str, PGSQL_CONNECT_FORCE_NEW);
+var_dump($db2 instanceof PgSql\Connection);
+pg_query($db2, 'SELECT test_notice()');
+var_dump(pg_last_notice($db2));
+
+pg_close($db2);
+
+echo "Done\n";
+?>
+--CLEAN--
+<?php
+include('inc/config.inc');
+$db = pg_connect($conn_str);
+pg_query($db, 'DROP FUNCTION IF EXISTS test_notice()');
+pg_close($db);
+?>
+--EXPECTF--
+string(%d) "NOTICE:  test notice"
+bool(true)
+string(%d) "NOTICE:  test notice"
+Done