MAGETWO-86048: Special characters in CSV return error: General system exception happened

Author: zakdma

dev/tests/functional/tests/app/Magento/CatalogRule/Test/Constraint/AssertCatalogPriceRuleAppliedShoppingCart.php

@@ -6,6 +6,7 @@
 
 namespace Magento\CatalogRule\Test\Constraint;
 
+use Magento\Checkout\Test\Constraint\Utils\CartPageLoadTrait;
 use Magento\Customer\Test\Fixture\Customer;
 use Magento\Checkout\Test\Page\CheckoutCart;
 use Magento\Mtf\Constraint\AbstractConstraint;
@@ -16,6 +17,8 @@
  */
 class AssertCatalogPriceRuleAppliedShoppingCart extends AbstractConstraint
 {
+    use CartPageLoadTrait;
+
     /**
      * Assert that Catalog Price Rule is applied for product(s) in Shopping Cart
      * according to Priority(Priority/Stop Further Rules Processing).
@@ -48,6 +51,7 @@ public function processAssert(
             ['products' => $products]
         )->run();
         $checkoutCartPage->open();
+        $this->waitForCartPageLoaded($checkoutCartPage);
         foreach ($products as $key => $product) {
             $actualPrice = $checkoutCartPage->getCartBlock()->getCartItem($product)->getSubtotalPrice();
             \PHPUnit_Framework_Assert::assertEquals(