public function testBackQuote()
{
$query = new InsertQuery('hoge', array('fuga' => 'piyo'));
$this->assertEquals('`tbl1`', $query->backQuote('tbl1'));
$this->assertEquals('`tbl\\`1`', $query->backQuote('tbl`1'));
$this->assertEquals('`tbl1\\\\`', $query->backQuote('tbl1\\'));
}
