php __wakeup bug.phpt

--TEST--
Bug: When an object is unserialized within the unserialize method of a Serializable implementation, its __wakeup method will be called _after_ the unserialize call is finished, making the object invalid during the unserialize call.
--FILE--
<?php
class Foo
{
    public function __sleep()
    {
        return [];
    }

    public function __wakeup()
    {
        echo 'Called ' . __METHOD__ . PHP_EOL;
    }
}

class Bar implements \Serializable
{
    private $foo;

    public function __construct(Foo $foo)
    {
        $this->foo = $foo;
    }

    public function serialize()
    {
        return serialize($this->foo);
    }

    public function unserialize($serialized)
    {
        echo 'unserialize Foo' . PHP_EOL;
        $this->foo = unserialize($serialized);
        echo 'end unserialize Foo' . PHP_EOL;
    }
}

$foo = new Foo();
$bar = new Bar($foo);
$barStr = serialize($bar);
$newBar = unserialize($barStr);
--EXPECTF--
unserialize Foo
Called Foo::__wakeup
end unserialize Foo