/**
* This test performs Solr searches using multifacets and checks whether they work
* as expected (adding 'OR something' to filter query should increase count of returned records
* in at least one case).
*/
public function testMultiFacetsSearch()
{
//configuration
$solr = $this->getServiceManager()->get('VuFind\\Search\\BackendManager')->get('Solr');
$connector = $solr->getConnector();
$this->assertNotNull($connector);
$config = $this->getServiceManager()->get('VuFind\\Config');
$this->assertNotNull($config);
$options = new Options($config);
$this->assertNotNull($options);
$params = new Params($options, $config);
$this->assertNotNull($params);
$testedFields = array('institution', 'format');
//try each field
foreach ($testedFields as $currentField) {
$params->addFacet($currentField, $currentField);
$paramBag = $params->getBackendParameters();
$this->assertTrue(is_array($paramBag->get('facet')));
$query = new Query("*:*");
$collection = $solr->search($query, 0, 0, $paramBag);
$this->assertNotNull($collection);
//get all possible filter values of current facet field
$facets = $collection->getFacets()->getFieldFacets()->getArrayCopy();
$list = $facets[$currentField];
$list->rewind();
$allFilters = array();
while ($list->valid()) {
$allFilters[] = $list->key();
$list->next();
}
for ($i = 0; $i < count($allFilters); $i++) {
for ($j = $i + 1; $j < count($allFilters); $j++) {
//test all possible pairs of filters for current facet field
$params = new Params($options, $config);
$params->addFacet($currentField, $currentField);
$params->setMultiselectFacets(array($currentField));
$params->addFilter($currentField . ':' . $allFilters[$i]);
$paramBag = $params->getBackendParameters();
$collection = $solr->search($query, 0, 0, $paramBag);
$this->assertNotNull($collection);
$total1 = $collection->getTotal();
$params->addFilter($currentField . ':' . $allFilters[$j]);
$paramBag = $params->getBackendParameters();
$collection = $solr->search($query, 0, 0, $paramBag);
$this->assertNotNull($collection);
$this->assertNotNull($collection);
$total2 = $collection->getTotal();
if ($total2 > $total1) {
//adding multifacet filter caused increasment of records in search results , we're done
return;
}
}
}
}
$this->fail("Multifacets test failed, multifacets has no effect on solr response." . " Tested fields: [ " . implode(", ", $testedFields) . " ]");
}
