/**
  * @test
  */
 public function getAffiliationKey()
 {
     $this->assertEquals('25fbb997438630f30b112d033ce2e621b34f3', $this->merchant->getAffiliationKey());
 }
 /**
  * @param  Merchant $merchant
  * @param  DOMDocument $document
  * @return \DOMElement
  */
 protected function createDadosEc($merchant, DOMDocument $document)
 {
     $dadosEc = $document->createElementNS(self::NS, 'dados-ec');
     $numero = $document->createElementNS(self::NS, 'numero', $merchant->getAffiliationId());
     $chave = $document->createElementNS(self::NS, 'chave', $merchant->getAffiliationKey());
     $dadosEc->appendChild($numero);
     $dadosEc->appendChild($chave);
     return $dadosEc;
 }