MAGETWO-84702: [SE Dev] Error Messages edits, part 1 (966 of 1166 total)

- failed tests are fixed

Author: Dmytro Vilchynskyi

dev/tests/api-functional/testsuite/Magento/Customer/Api/AccountManagementTest.php

@@ -577,11 +577,11 @@ public function testValidateCustomerData()
         $this->assertFalse($validationResponse['valid']);
 
         $this->assertEquals(
-            'The "firstname" attribute value is empty. Set the attribute and try again.',
+            'The "First Name" attribute value is empty. Set the attribute and try again.',
             $validationResponse['messages'][0]
         );
         $this->assertEquals(
-            'The "lastname" attribute value is empty. Set the attribute and try again.',
+            'The "Last Name" attribute value is empty. Set the attribute and try again.',
             $validationResponse['messages'][1]
         );
     }

dev/tests/integration/testsuite/Magento/Catalog/Controller/Adminhtml/CategoryTest.php

@@ -339,7 +339,7 @@ public function testSaveActionCategoryWithDangerRequest()
         );
         $this->dispatch('backend/catalog/category/save');
         $this->assertSessionMessages(
-            $this->equalTo(['The "name" attribute value is empty. Set the attribute and try again.']),
+            $this->equalTo(['The "Name" attribute value is empty. Set the attribute and try again.']),
             \Magento\Framework\Message\MessageInterface::TYPE_ERROR
         );
     }