public function testParseIncompleteUsing()
{
$component = JoinKeyword::parse(new Parser(), $this->getTokensList('JOIN table2 USING (id)'));
$this->assertEquals(1, count($component));
$this->assertEquals('table2', $component[0]->expr->expr);
$this->assertEquals(null, $component[0]->on);
$this->assertEquals(array('id'), $component[0]->using->values);
}