magento/graphql-ce#486: Add customer account validation in Quote operations

Author: naydav

dev/tests/api-functional/testsuite/Magento/GraphQl/Quote/Guest/SetPaymentMethodAndPlaceOrderTest.php

@@ -79,6 +79,7 @@ public function testSetPaymentOnCartWithSimpleProduct()
     /**
      * @magentoApiDataFixture Magento/GraphQl/Catalog/_files/simple_product.php
      * @magentoApiDataFixture Magento/GraphQl/Quote/_files/guest/create_empty_cart.php
+     * @magentoApiDataFixture Magento/GraphQl/Quote/_files/guest/set_guest_email.php
      * @magentoApiDataFixture Magento/GraphQl/Quote/_files/add_simple_product.php
      *
      * @expectedException Exception
@@ -116,6 +117,7 @@ public function testSetPaymentOnCartWithVirtualProduct()
     /**
      * @magentoApiDataFixture Magento/GraphQl/Catalog/_files/simple_product.php
      * @magentoApiDataFixture Magento/GraphQl/Quote/_files/guest/create_empty_cart.php
+     * @magentoApiDataFixture Magento/GraphQl/Quote/_files/guest/set_guest_email.php
      * @magentoApiDataFixture Magento/GraphQl/Quote/_files/add_simple_product.php
      * @magentoApiDataFixture Magento/GraphQl/Quote/_files/set_new_shipping_address.php
      *
@@ -191,6 +193,7 @@ public function testSetPaymentMethodToCustomerCart()
     /**
      * @magentoApiDataFixture Magento/GraphQl/Catalog/_files/simple_product.php
      * @magentoApiDataFixture Magento/GraphQl/Quote/_files/guest/create_empty_cart.php
+     * @magentoApiDataFixture Magento/GraphQl/Quote/_files/guest/set_guest_email.php
      * @magentoApiDataFixture Magento/GraphQl/Quote/_files/add_simple_product.php
      * @magentoApiDataFixture Magento/GraphQl/Quote/_files/set_new_shipping_address.php
      * @expectedException Exception