public function testControl()
 {
     $form = new Form();
     $recaptcha = new \WebChemistry\Forms\Controls\Recaptcha('aev464vaew8vaet8', 'a1evt88av18avte');
     $form->addComponent($recaptcha, 'recaptcha');
     $this->assertSame('aev464vaew8vaet8', $recaptcha->getApiKey());
     $this->assertStringEqualsFile(E::dumpedFile('recaptcha'), $recaptcha->getControl());
 }