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<?php
namespace Elastica\Test\Aggregation;
use Elastica\Aggregation\SignificantTerms;
use Elastica\Document;
use Elastica\Filter\Terms as TermsFilter;
use Elastica\Query;
use Elastica\Query\Terms;
class SignificantTermsTest extends BaseAggregationTest
{
protected function _getIndexForTest()
{
$index = $this->_createIndex();
$colors = array('blue', 'blue', 'red', 'red', 'green', 'yellow', 'white', 'cyan', 'magenta');
$temperatures = array(1500, 1500, 1500, 1500, 2500, 3500, 4500, 5500, 6500, 7500, 7500, 8500, 9500);
$docs = array();
for ($i = 0;$i < 250;$i++) {
$docs[] = new Document($i, array('color' => $colors[$i % count($colors)], 'temperature' => $temperatures[$i % count($temperatures)]));
}
$index->getType('test')->addDocuments($docs);
$index->refresh();
return $index;
}
/**
* @group functional
*/
public function testSignificantTermsAggregation()
{
$agg = new SignificantTerms('significantTerms');
$agg->setField('temperature');
$agg->setSize(1);
$termsQuery = new Terms();
$termsQuery->setTerms('color', array('blue', 'red', 'green', 'yellow', 'white'));
$query = new Query($termsQuery);
$query->addAggregation($agg);
$results = $this->_getIndexForTest()->search($query)->getAggregation('significantTerms');
$this->assertEquals(1, count($results['buckets']));
$this->assertEquals(63, $results['buckets'][0]['doc_count']);
$this->assertEquals(79, $results['buckets'][0]['bg_count']);
$this->assertEquals('1500', $results['buckets'][0]['key_as_string']);
}
/**
* @group functional
*/
public function testSignificantTermsAggregationWithBackgroundFilter()
{
$agg = new SignificantTerms('significantTerms');
$agg->setField('temperature');
$agg->setSize(1);
$termsFilter = new TermsFilter();
$termsFilter->setTerms('color', array('blue', 'red', 'green', 'yellow'));
$agg->setBackgroundFilter($termsFilter);
$termsQuery = new Terms();
$termsQuery->setTerms('color', array('blue', 'red', 'green', 'yellow', 'white'));
$query = new Query($termsQuery);
$query->addAggregation($agg);
$results = $this->_getIndexForTest()->search($query)->getAggregation('significantTerms');
$this->assertEquals(15, $results['buckets'][0]['doc_count']);
$this->assertEquals(12, $results['buckets'][0]['bg_count']);
$this->assertEquals('4500', $results['buckets'][0]['key_as_string']);
}
}
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