MAGETWO-63154: Special characters in store name converted to numerical character references in email subject

- Integration test added.

Author: arnie1947

dev/tests/integration/testsuite/Magento/Customer/Controller/AccountTest.php

@@ -64,6 +64,38 @@ public function testLogoutAction()
         $this->assertRedirect($this->stringContains('customer/account/logoutSuccess'));
     }
 
+    /**
+     * Test that forgot password email message displays special characters correctly.
+     *
+     * @magentoConfigFixture current_store customer/password/limit_password_reset_requests_method 0
+     * @magentoConfigFixture current_store customer/password/forgot_email_template customer_password_forgot_email_template
+     * @magentoConfigFixture current_store customer/password/forgot_email_identity support
+     * @magentoConfigFixture current_store general/store_information/name Test special' characters
+     * @magentoDataFixture Magento/Customer/_files/customer.php
+     */
+    public function testForgotPasswordEmailMessageWithSpecialCharacters()
+    {
+        $email = 'customer@example.com';
+
+        $this->getRequest()
+            ->setPostValue([
+                'email' => $email,
+            ]);
+
+        $this->dispatch('customer/account/forgotPasswordPost');
+        $this->assertRedirect($this->stringContains('customer/account/'));
+
+        /** @var \Magento\TestFramework\Mail\Template\TransportBuilderMock $transportBuilder */
+        $transportBuilder = $this->_objectManager->get(
+            \Magento\TestFramework\Mail\Template\TransportBuilderMock::class
+        );
+        $subject = $transportBuilder->getSentMessage()->getSubject();
+        $this->assertContains(
+            'Test special\' characters',
+            $subject
+        );
+    }
+
     /**
      * @magentoDataFixture Magento/Customer/_files/customer.php
      */