MAGETWO-87346: Uncaught 'undefined property' notices in REST tests - backport for 2.1-develop

Author: Stanislav Idolov

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

@@ -103,7 +103,7 @@ public function tearDown()
                 $this->assertTrue($response);
             }
         }
-        unset($this->accountManagement);
+        $this->accountManagement = null;
         $mediaDirectory = $this->fileSystem->getDirectoryWrite(DirectoryList::MEDIA);
         $mediaDirectory->delete(CustomerMetadataInterface::ENTITY_TYPE_CUSTOMER);
     }

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

@@ -94,7 +94,7 @@ public function setUp()
      */
     public function tearDown()
     {
-        unset($this->customerRepository);
+        $this->customerRepository = null;
 
         /** @var \Magento\Framework\Registry $registry */
         $registry = Bootstrap::getObjectManager()->get('Magento\Framework\Registry');

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

@@ -150,8 +150,8 @@ public function tearDown()
             $this->configValue
         );
         $this->config->save();
-        unset($this->accountManagement);
-        unset($this->subscriber);
+        $this->accountManagement = null;
+        $this->subscriber = null;
     }
 
     private function initSubscriber()

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

@@ -139,7 +139,7 @@ public function tearDown()
                 $this->assertTrue($response);
             }
         }
-        unset($this->customerRepository);
+        $this->customerRepository = null;
     }
 
     /**

dev/tests/api-functional/testsuite/Magento/Integration/Model/IntegrationTest.php

@@ -32,7 +32,7 @@ protected function setUp()
 
     protected function tearDown()
     {
-        unset($this->integration);
+        $this->integration = null;
         OauthHelper::clearApiAccessCredentials();
         parent::tearDown();
     }