- Added missing test

ext/pcre/tests/bug52971.phpt

@@ -0,0 +1,43 @@
+--TEST--
+Bug #52971 (PCRE-Meta-Characters not working with utf-8)
+--SKIPIF--
+<?php if ((double)PCRE_VERSION < 8.1) die('skip PCRE_VERSION >= 8.1 is required!'); ?>
+--FILE--
+<?php
+
+$message = 'Der ist ein Süßwasserpool Süsswasserpool ... verschiedene Wassersportmöglichkeiten bei ...';
+
+$pattern = '/\bwasser/iu';
+preg_match_all($pattern, $message, $match, PREG_OFFSET_CAPTURE);
+var_dump($match);
+
+$pattern = '/[^\w]wasser/iu';
+preg_match_all($pattern, $message, $match, PREG_OFFSET_CAPTURE);
+var_dump($match);
+
+?>
+--EXPECTF--
+array(1) {
+  [0]=>
+  array(1) {
+    [0]=>
+    array(2) {
+      [0]=>
+      string(6) "Wasser"
+      [1]=>
+      int(61)
+    }
+  }
+}
+array(1) {
+  [0]=>
+  array(1) {
+    [0]=>
+    array(2) {
+      [0]=>
+      string(7) " Wasser"
+      [1]=>
+      int(60)
+    }
+  }
+}