GraphQl-222: Apply changes from CR for PR 162

- Fix API-functional tests

Author: Valeriy Nayda

dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/AccountInformationTest.php

@@ -238,7 +238,7 @@ public function testUpdateAccountInformationIfCustomerIsLocked()
     /**
      * @magentoApiDataFixture Magento/Customer/_files/customer.php
      * @expectedException \Exception
-     * @expectedExceptionMessage For changing "email" you should provide current "password".
+     * @expectedExceptionMessage Provide the current "password" to change "email".
      */
     public function testUpdateEmailIfPasswordIsMissed()
     {

dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/RevokeCustomerTokenTest.php

@@ -23,7 +23,9 @@ public function testRevokeCustomerTokenValidCredentials()
     {
         $query = <<<QUERY
             mutation {
-                revokeCustomerToken
+                revokeCustomerToken {
+                    result
+                }
             }
 QUERY;
 
@@ -35,7 +37,7 @@ public function testRevokeCustomerTokenValidCredentials()
 
         $headerMap = ['Authorization' => 'Bearer ' . $customerToken];
         $response = $this->graphQlQuery($query, [], '', $headerMap);
-        $this->assertTrue($response['revokeCustomerToken']);
+        $this->assertTrue($response['revokeCustomerToken']['result']);
     }
 
     /**
@@ -46,7 +48,9 @@ public function testRevokeCustomerTokenForGuestCustomer()
     {
         $query = <<<QUERY
             mutation {
-                revokeCustomerToken
+                revokeCustomerToken {
+                    result
+                }
             }
 QUERY;
         $this->graphQlQuery($query, [], '');