MAGETWO-52011: Second error message is not displayed when adding product with two invalid file fields to the cart

Author: irenelagno

dev/tests/integration/testsuite/Magento/Catalog/Model/Product/Type/AbstractTypeTest.php

@@ -190,7 +190,8 @@ public function testPrepareForCartOptionsException()
         );
         $product = $repository->get('simple');
         // fixture
-        $this->assertEquals(
+
+        $this->assertContains(
             'Please specify product\'s required option(s).',
             $this->_model->prepareForCart(new \Magento\Framework\DataObject(), $product)
         );