function testDb_TabledatagatewayId()
{
$db = new A_Db_Tabledatagateway_MockDb();
$tdg = new Test1($db);
$this->assertEqual($tdg->getKey(), 'id');
$tdg = new Test1($db, '', 'bar');
$this->assertEqual($tdg->getKey(), 'bar');
$tdg = new Test2($db);
$this->assertEqual($tdg->getKey(), 'code');
}
