Symfony\Component\HttpFoundation\Request::isMethodCacheable PHP Method

    public function isMethodCacheable()
    {
        return in_array($this->getMethod(), array('GET', 'HEAD'));
    }

 /**
  * @dataProvider methodCacheableProvider
  */
 public function testMethodCacheable($method, $chacheable)
 {
     $request = new Request();
     $request->setMethod($method);
     $this->assertEquals($chacheable, $request->isMethodCacheable());
 }