public function testBasic()
{
$connection = new Druid(new Driver(), ['proxy' => 'tcp://127.0.0.1:8080']);
$queries = new GroupByQueryBuilder();
$queries->setDataSource('kpi_registrations_v1');
$queries->setGranularity('P1D', 'UTC');
$queries->addInterval(new \DateTime('2000-01-01'), new \DateTime());
$queries->addAggregator($queries->aggregator()->count('count_rows'));
$queries->addAggregator($queries->aggregator()->doubleSum('sum_rows', 'event_count_metric'));
$queries->addAggregator($queries->aggregator()->hyperUnique('registrations', 'registrations'));
$queries->addDimension('project', 'project');
$queries->addPostAggregator($queries->postAggregator()->arithmeticPostAggregator('average', '/', [$queries->postAggregator()->fieldAccessPostAggregator('sum_rows', 'sum_rows'), $queries->postAggregator()->fieldAccessPostAggregator('count_rows', 'count_rows')]));
$response = $connection->send($queries->getQuery());
$this->assertInstanceOf(ResponseInterface::class, $response);
}
