Elastica\Query\MoreLikeThis::setMinTermFrequency PHP Method

    public function setMinTermFrequency($minTermFreq)
    {
        return $this->setParam('min_term_freq', (int) $minTermFreq);
    }

 /**
  * @group functional
  */
 public function testSearch()
 {
     $client = $this->_getClient();
     $index = new Index($client, 'test');
     $index->create(array(), true);
     $index->getSettings()->setNumberOfReplicas(0);
     //$index->getSettings()->setNumberOfShards(1);
     $type = new Type($index, 'helloworldmlt');
     $mapping = new Mapping($type, array('email' => array('store' => 'yes', 'type' => 'string', 'index' => 'analyzed'), 'content' => array('store' => 'yes', 'type' => 'string', 'index' => 'analyzed')));
     $mapping->setSource(array('enabled' => false));
     $type->setMapping($mapping);
     $doc = new Document(1000, array('email' => '*****@*****.**', 'content' => 'This is a sample post. Hello World Fuzzy Like This!'));
     $type->addDocument($doc);
     $doc = new Document(1001, array('email' => '*****@*****.**', 'content' => 'This is a fake nospam email address for gmail'));
     $type->addDocument($doc);
     // Refresh index
     $index->refresh();
     $mltQuery = new MoreLikeThis();
     $mltQuery->setLikeText('fake gmail sample');
     $mltQuery->setFields(array('email', 'content'));
     $mltQuery->setMaxQueryTerms(1);
     $mltQuery->setMinDocFrequency(1);
     $mltQuery->setMinTermFrequency(1);
     $query = new Query();
     $query->setFields(array('email', 'content'));
     $query->setQuery($mltQuery);
     $resultSet = $type->search($query);
     $resultSet->getResponse()->getData();
     $this->assertEquals(2, $resultSet->count());
 }