public function testFacetMultipleStringKeySingle()
 {
     $facets = array('facet' => array('and' => 'value1', 'or' => 'value2'));
     $searcher = new Searcher();
     $musts = array();
     $filters = array();
     $searcher->_filterBySelectedFacets('facet', $facets, 'term', $musts, $filters);
     $this->assertCount(1, $musts);
     $this->assertCount(1, $filters);
     $this->assertEquals(array(array('term' => array('facet' => 'value1'))), $musts);
     $this->assertEquals(array(array('term' => array('facet' => 'value2'))), $filters);
 }