public function testGetRelationshipInvalidRelationshipName()
 {
     $tbl = new Table("test_table", 'MyISAM');
     $error = false;
     try {
         $col = $tbl->getRelationship("myBadRelationship");
     } catch (\Exception $e) {
         $error = true;
     }
     $this->assertTrue($error);
 }