/**
* Tests integration of the FiltersAggregation anonymous example from the documentation.
*
* @link https://github.com/ongr-io/ElasticsearchDSL/blob/master/docs/Aggregation/Filters.md#anonymous-example
*/
public function testFiltersAggregationAnonymousExample()
{
$errorTermFilter = new TermQuery('body', 'error');
$warningTermFilter = new TermQuery('body', 'warning');
$histogramAggregation = new HistogramAggregation('monthly', 'timestamp');
$histogramAggregation->setInterval('1M');
$filterAggregation = new FiltersAggregation('grades_stats', ['error' => $errorTermFilter, 'warning' => $warningTermFilter], true);
$filterAggregation->addAggregation($histogramAggregation);
$search = new Search();
$search->addAggregation($filterAggregation);
$this->assertSame(['aggregations' => ['grades_stats' => ['filters' => ['filters' => [['term' => ['body' => 'error']], ['term' => ['body' => 'warning']]]], 'aggregations' => ['monthly' => ['histogram' => ['field' => 'timestamp', 'interval' => '1M']]]]]], $search->toArray());
}
