MAGETWO-33654: Unable to save newsletter subscription information of customer in backend

Author: slopok

app/code/Magento/Customer/Test/Unit/Controller/Adminhtml/Index/SaveTest.php

@@ -9,6 +9,8 @@
 use Magento\Framework\Controller\Result\Redirect;
 
 /**
+ * @SuppressWarnings(PHPMD.TooManyFields)
+ * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
  * @covers \Magento\Customer\Controller\Adminhtml\Index\Save
  * @TODO: Add coverage code with addresses logic
  */

dev/tests/integration/testsuite/Magento/Customer/Controller/Adminhtml/IndexTest.php

@@ -330,6 +330,7 @@ public function testSaveActionExistingCustomerUnsubscribeNewsletter()
 
         $post = [
             'customer' => ['entity_id' => $customerId],
+            'subscription' => 'false'
         ];
         $this->getRequest()->setPostValue($post);
         $this->getRequest()->setParam('id', 1);