function testSelectSubdirectories()
 {
     $results = AnalyzeFiles::rules()->directory($this->directory)->create(function ($rules) {
         $rules->add(function ($data) {
             $data->fileEndsWith('.php');
             $data->filesInside(array('sub1', 'sub2'));
             $data->validation(function ($validation) {
                 $validation->whereSearch('Carlos');
             });
         });
     });
     $this->assertTrue(is_array($results));
     $this->assertFalse($results['sub1/sub1.php']['result']);
     $this->assertTrue($results['sub2/sub2.php']['result']);
 }