Cielo\Transaction::setGenerateToken PHP Method

    public function setGenerateToken($generateToken)
    {
        if (!is_bool($generateToken)) {
            throw new \UnexpectedValueException('O campo generate-token deve ser um boolean');
        }
        $this->generateToken = $generateToken;
    }

 /**
  * @test
  */
 public function setGenerateTokenThrowsUnexpectedValue()
 {
     $this->setExpectedException(\UnexpectedValueException::class);
     $this->transaction->setGenerateToken(0);
 }