public function testReplaceDocument()
{
$user = new My_ShantyMongo_User();
$user->email = '*****@*****.**';
$user->sex = 'F';
$user->name->first = 'Madeline';
$user->name->last = 'Veenstra';
$user->save();
//Test original document is as expected.
$userId = $user->getId();
$userRow = $this->_userCollection->findOne(array('_id' => new MongoId($userId->__toString())));
$this->assertEquals('*****@*****.**', $userRow['email']);
$replacementUser = new My_ShantyMongo_User();
$replacementUser->setId($userId);
$replacementUser->email = '*****@*****.**';
$replacementUser->sex = 'M';
$replacementUser->name->first = 'Dave';
$replacementUser->name->last = 'Smithers';
$replacementUser->save();
//Test replaced document is as expected.
$userReplacementDoc = $this->_userCollection->findOne(array('_id' => new MongoId($userId->__toString())));
$this->assertEquals('*****@*****.**', $userReplacementDoc['email']);
}
