public function testDeletePostsByHashtagId()
{
$dao = new PostMySQLDAO();
$output = $dao->getAllPostsByHashtagId(1, 'twitter', 20);
$this->assertEqual(sizeof($output), 20);
$output = $dao->getAllPostsByHashtagId(2, 'twitter', 20);
$this->assertEqual(sizeof($output), 20);
$output = $dao->deletePostsByHashtagId(1);
$this->assertEqual($output, 30);
$output = $dao->deletePostsByHashtagId(2);
$this->assertEqual($output, 30);
$output = $dao->getAllPostsByHashtagId(1, 'twitter', 20);
$this->assertEqual(sizeof($output), 0);
$output = $dao->getAllPostsByHashtagId(2, 'twitter', 20);
$this->assertEqual(sizeof($output), 0);
}
