Covering the logged in to access the Returns form use case

Author: eduard13

dev/tests/integration/testsuite/Magento/Sales/Controller/Guest/FormTest.php

@@ -44,6 +44,19 @@ public function testViewOrderAsLoggedIn()
         $this->assertRedirect($this->stringContains('sales/order/history/'));
     }
 
+    /**
+     * Test attempting to open the Returns form as logged in customer
+     *
+     * @magentoDataFixture Magento/Sales/_files/order.php
+     * @magentoDataFixture Magento/Customer/_files/customer.php
+     */
+    public function testAttemptToOpenTheFormAsLoggedIn()
+    {
+        $this->login(1);
+        $this->dispatch('sales/guest/form/');
+        $this->assertRedirect($this->stringContains('customer/account'));
+    }
+
     /**
      * Test Return Order for guest with incorrect data
      */