public function testDoesInsightExist()
 {
     $dao = new InsightMySQLDAO();
     $result = $dao->doesInsightExist("avg_replies_per_week", 1);
     $this->assertTrue($result);
     $result = $dao->doesInsightExist("avg_replies_per_week", 10);
     $this->assertFalse($result);
     $result = $dao->doesInsightExist("yo_yo_yooo", 1);
     $this->assertFalse($result);
 }