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<?php
namespace Elastica\Test\Aggregation;
use Elastica\Document;
use Elastica\Aggregation\Histogram;
use Elastica\Query;
class HistogramTest extends BaseAggregationTest
{
protected function setUp()
{
parent::setUp();
$this->_index = $this->_createIndex("histogram");
$docs = array(
new Document("1", array("price" => 5, "color" => "blue")),
new Document("2", array("price" => 8, "color" => "blue")),
new Document("3", array("price" => 1, "color" => "red")),
new Document("4", array("price" => 30, "color" => "green")),
new Document("5", array("price" => 40, "color" => "red")),
new Document("6", array("price" => 35, "color" => "green")),
new Document("7", array("price" => 42, "color" => "red")),
new Document("8", array("price" => 41, "color" => "blue")),
);
$this->_index->getType("test")->addDocuments($docs);
$this->_index->refresh();
}
public function testHistogramAggregation()
{
$agg = new Histogram("hist", "price", 10);
$agg->setMinimumDocumentCount(0); // should return empty buckets
$query = new Query();
$query->addAggregation($agg);
$results = $this->_index->search($query)->getAggregation("hist");
$buckets = $results['buckets'];
$this->assertEquals(5, sizeof($buckets));
$this->assertEquals(30, $buckets[3]['key']);
$this->assertEquals(2, $buckets[3]['doc_count']);
}
}
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