public function testDiffListTableColumns()
{
$offlineTable = $this->createTableSchema();
$onlineTable = $this->sm->listTableDetails('points');
$comparator = new \Doctrine\DBAL\Schema\Comparator();
$diff = $comparator->diffTable($offlineTable, $onlineTable);
$this->assertFalse($diff, 'No differences should be detected with the offline vs online schema.');
}