Description:
------------
The test provides invalid expectation and hides the real problem.
for some reason the second assignment statement changes the value of $bar.
It's done not on purpose.


$bar = new PDO("sqlite::memory:", null, null, array(PDO::ATTR_PERSISTENT => true));
$baz = new MyPDO("sqlite::memory:", null, null, array(PDO::ATTR_PERSISTENT => true));

var_dump($bar); // Prints object(MyPDO) instead of object(PDO)

the bug and test are fixed in phpng.