MAGETWO-82530: Redirect fix when Unsubscribe execute

Author: SeruyV

dev/tests/integration/testsuite/Magento/Newsletter/Controller/UnSubscriberTest.php

@@ -0,0 +1,64 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Newsletter\Controller;
+
+use Magento\TestFramework\TestCase\AbstractController;
+
+/**
+ * Test Unsubscriber controller
+ *
+ * @magentoDataFixture Magento/Newsletter/_files/subscribers.php
+ * @magentoAppArea     frontend
+ */
+class UnSubscriberTest extends AbstractController
+{
+
+    /**
+     * @var Subscriber
+     */
+    private $model;
+
+    protected function setUp()
+    {
+        $this->model = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(
+            \Magento\Newsletter\Model\Subscriber::class
+        );
+        parent::setUp();
+    }
+
+    /**
+     * @return void
+     */
+    public function testSuccessUnsubscribeSubscribedUser()
+    {
+        $subscriber = $this->model->loadByCustomerId(1);
+        $this->getRequest()
+            ->setParam('id', $subscriber->getId())
+            ->setParam('code', 'zxayquyajua23iq29gxwu2eax2qb6gvy');
+
+        $this->dispatch('newsletter/subscriber/unsubscribe');
+
+        $this->assertSessionMessages($this->equalTo(['You unsubscribed.']));
+        $this->assertRedirect($this->anything());
+    }
+
+    /**
+     * @return void
+     */
+    public function testFailureUnsubscribeSubscribedUser()
+    {
+        $subscriber = $this->model->loadByCustomerId(1);
+        $this->getRequest()
+            ->setParam('id', $subscriber->getId())
+            ->setParam('code', 'randomcode');
+
+        $this->dispatch('newsletter/subscriber/unsubscribe');
+
+        $this->assertSessionMessages($this->equalTo(['This is an invalid subscription confirmation code.']));
+        $this->assertRedirect($this->anything());
+    }
+}

dev/tests/integration/testsuite/Magento/Newsletter/_files/subscribers.php

@@ -22,6 +22,7 @@
 $subscriber->setStoreId($currentStore)
     ->setCustomerId(1)
     ->setSubscriberEmail('customer@example.com')
+    ->setSubscriberConfirmCode('zxayquyajua23iq29gxwu2eax2qb6gvy')
     ->setSubscriberStatus(\Magento\Newsletter\Model\Subscriber::STATUS_SUBSCRIBED)
     ->save();
 $firstSubscriberId = $subscriber->getId();