public function testLimit()
{
$query = new Query($this->_queryArr);
$expected = 10;
$result = $query->limit();
$this->assertEqual($expected, $result);
$query->limit(5);
$expected = 5;
$result = $query->limit();
$this->assertEqual($expected, $result);
$query->limit(false);
$this->assertNull($query->limit());
}