MAGETWO-59739: [FT] Magento\Checkout\Test\TestCase\OnePageCheckoutTest fails randomly on CI

Author: irenelagno

dev/tests/functional/tests/app/Magento/Checkout/Test/Block/Onepage/Payment.php

@@ -90,7 +90,7 @@ public function selectPaymentMethod(array $payment, InjectableFixture $creditCar
         } catch (\Exception $exception) {
             throw new \Exception('Such payment method is absent.');
         }
-
+        $this->waitForElementVisible($paymentSelector);
         $paymentRadioButton = $this->_rootElement->find($paymentSelector);
         if ($paymentRadioButton->isVisible()) {
             $paymentRadioButton->click();