public function testIsValidForHost()
 {
     $_SERVER['HTTP_HOST'] = 'localhost';
     $this->_model->start();
     $reflection = new \ReflectionMethod($this->_model, '_addHost');
     $reflection->setAccessible(true);
     $reflection->invoke($this->_model);
     $this->assertFalse($this->_model->isValidForHost('test.com'));
     $this->assertTrue($this->_model->isValidForHost('localhost'));
     $this->_model->destroy();
 }