array copy on write tests

Zend/tests/array_append_COW.phpt

@@ -0,0 +1,17 @@
+--TEST--
+ Tests that array manipulation code is correctly dealing with copy on write and
+ splitting on  reference.
+--FILE--
+<?php
+	$a=array();
+	$b=1;
+	$c=&$b;
+	$a[]=$b;
+	$b=2;
+	var_dump ($a);
+?>
+--EXPECT--
+array(1) {
+  [0]=>
+  int(1)
+}

Zend/tests/array_unshift_COW.phpt

@@ -0,0 +1,17 @@
+--TEST--
+ Tests that array unshift code is correctly dealing with copy on write and
+ splitting on  reference.
+--FILE--
+<?php
+	$a=array();
+	$b=1;
+	$c=&$b;
+	array_unshift ($a,$b);
+	$b=2;
+	var_dump ($a);
+?>
+--EXPECT--
+array(1) {
+  [0]=>
+  int(1)
+}