public function testInsertHashtags()
 {
     $ht = array('bob', 'dole');
     $this->hashtagpost_dao->insertHashtagPosts($ht, '39089424330978176', 'twitter');
     $this->hashtagpost_dao->insertHashtagPosts($ht, '39089424330978177', 'twitter');
     $res1 = $this->hashtagpost_dao->getHashtagsForPost('39089424330978176', 'twitter');
     $res2 = $this->hashtagpost_dao->getHashtagsForPost('39089424330978177', 'twitter');
     $this->assertEqual(sizeof($res1), 2);
     $this->assertEqual(sizeof($res2), 2);
     $this->assertEqual($res2[1]['hashtag_id'], 3);
     //setup generated 1 prev hashtag
     $res3 = $this->hashtag_dao->getHashtag('dole', 'twitter');
     $this->assertEqual($res3->count_cache, 2);
     $res4 = $this->hashtagpost_dao->getHashtagPostsByHashtagID(2);
     //setup has generated 2 prev hashtags
     $this->assertEqual(sizeof($res4), 2);
     $this->assertEqual($res4[0]['post_id'], '39089424330978176');
 }