new test

ext/pcre/tests/bug42298.phpt

@@ -0,0 +1,46 @@
+--TEST--
+Bug #42298 (pcre gives bogus results with /u)
+--FILE--
+<?php
+$str = "A\xc2\xa3BC";
+preg_match_all('/\S\S/u', $str, $m);	var_dump($m);
+preg_match_all('/\S{2}/u', $str, $m);	var_dump($m);
+
+$str = "A\xe2\x82\xac ";
+preg_match_all('/\W\W/u', $str, $m);	var_dump($m);
+preg_match_all('/\W{2}/u', $str, $m);	var_dump($m);
+
+?>
+--EXPECT--
+array(1) {
+  [0]=>
+  array(2) {
+    [0]=>
+    string(3) "A£"
+    [1]=>
+    string(2) "BC"
+  }
+}
+array(1) {
+  [0]=>
+  array(2) {
+    [0]=>
+    string(3) "A£"
+    [1]=>
+    string(2) "BC"
+  }
+}
+array(1) {
+  [0]=>
+  array(1) {
+    [0]=>
+    string(4) "€ "
+  }
+}
+array(1) {
+  [0]=>
+  array(1) {
+    [0]=>
+    string(4) "€ "
+  }
+}