function testSave()
 {
     AbstractSession::destroySafely();
     call_user_func($this->handler . '::init', $this->wrapper);
     $_SESSION['foo'] = 'bar';
     $id = session_id();
     session_write_close();
     $sessFetched = $this->wrapper->get($this->prefix . $id);
     $this->assertNotEmpty($sessFetched, _unit_dump(['id' => $id, 'fetched' => $sessFetched, 'all' => $this->wrapper->getAll(), 'is_available' => $this->wrapper->isAvailable()]));
     $this->assertTrue(stripos($sessFetched, 'foo') !== false, '"foo" not found in session data');
     $this->assertTrue(stripos($sessFetched, 'bar') !== false, '"bar" not found in session data');
 }