diff --git a/.phpunit.result.cache b/.phpunit.result.cache
new file mode 100644
index 0000000000..aac751d9fb
--- /dev/null
+++ b/.phpunit.result.cache
@@ -0,0 +1 @@
+{"version":1,"defects":[],"times":{"phpbb\\feed\\event\\http_auth_subscriber_test::test_subscriber_events":0.006,"phpbb\\feed\\event\\http_auth_subscriber_test::test_non_feed_route_skipped":0.005,"phpbb\\feed\\event\\http_auth_subscriber_test::test_http_auth_disabled":0.001,"phpbb\\feed\\event\\http_auth_subscriber_test::test_user_already_logged_in":0.001}}
\ No newline at end of file
diff --git a/tests/feed/http_auth_subscriber_test.php b/tests/feed/http_auth_subscriber_test.php
new file mode 100644
index 0000000000..d3f00aef68
--- /dev/null
+++ b/tests/feed/http_auth_subscriber_test.php
@@ -0,0 +1,159 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\feed\event;
+
+class http_auth_subscriber_test extends \phpbb_test_case
+{
+	/** @var \PHPUnit\Framework\MockObject\MockObject|\phpbb\auth\auth */
+	protected $auth;
+
+	/** @var \PHPUnit\Framework\MockObject\MockObject|\phpbb\config\config */
+	protected $config;
+
+	/** @var \PHPUnit\Framework\MockObject\MockObject|\phpbb\request\request_interface */
+	protected $request;
+
+	/** @var \PHPUnit\Framework\MockObject\MockObject|\phpbb\user */
+	protected $user;
+
+	/** @var http_auth_subscriber */
+	protected $subscriber;
+
+	protected function setUp(): void
+	{
+		parent::setUp();
+
+		$this->auth = $this->getMockBuilder('\phpbb\auth\auth')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$this->config = new \phpbb\config\config(array(
+			'feed_http_auth' => 1,
+			'sitename' => 'Test Site',
+		));
+
+		$this->request = $this->getMockBuilder('\phpbb\request\request_interface')
+			->getMock();
+
+		$this->user = $this->getMockBuilder('\phpbb\user')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$this->user->data = array('is_registered' => false);
+
+		$this->subscriber = new http_auth_subscriber(
+			$this->auth,
+			$this->config,
+			$this->request,
+			$this->user
+		);
+	}
+
+	public function test_subscriber_events()
+	{
+		$events = http_auth_subscriber::getSubscribedEvents();
+		$this->assertArrayHasKey(\Symfony\Component\HttpKernel\KernelEvents::REQUEST, $events);
+	}
+
+	public function test_non_feed_route_skipped()
+	{
+		$request = $this->getMockBuilder('\Symfony\Component\HttpFoundation\Request')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$request->attributes = $this->getMockBuilder('\Symfony\Component\HttpFoundation\ParameterBag')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$request->attributes->expects($this->once())
+			->method('get')
+			->with('_route')
+			->willReturn('not_a_feed_route');
+
+		$event = $this->getMockBuilder('\Symfony\Component\HttpKernel\Event\GetResponseEvent')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$event->expects($this->once())
+			->method('getRequest')
+			->willReturn($request);
+
+		$event->expects($this->never())
+			->method('setResponse');
+
+		$this->subscriber->on_kernel_request($event);
+	}
+
+	public function test_http_auth_disabled()
+	{
+		$this->config['feed_http_auth'] = 0;
+
+		$request = $this->getMockBuilder('\Symfony\Component\HttpFoundation\Request')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$request->attributes = $this->getMockBuilder('\Symfony\Component\HttpFoundation\ParameterBag')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$request->attributes->expects($this->once())
+			->method('get')
+			->with('_route')
+			->willReturn('phpbb_feed_overall');
+
+		$event = $this->getMockBuilder('\Symfony\Component\HttpKernel\Event\GetResponseEvent')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$event->expects($this->once())
+			->method('getRequest')
+			->willReturn($request);
+
+		$event->expects($this->never())
+			->method('setResponse');
+
+		$this->subscriber->on_kernel_request($event);
+	}
+
+	public function test_user_already_logged_in()
+	{
+		$this->user->data = array('is_registered' => true);
+
+		$request = $this->getMockBuilder('\Symfony\Component\HttpFoundation\Request')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$request->attributes = $this->getMockBuilder('\Symfony\Component\HttpFoundation\ParameterBag')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$request->attributes->expects($this->once())
+			->method('get')
+			->with('_route')
+			->willReturn('phpbb_feed_overall');
+
+		$event = $this->getMockBuilder('\Symfony\Component\HttpKernel\Event\GetResponseEvent')
+			->disableOriginalConstructor()
+			->getMock();
+
+		$event->expects($this->once())
+			->method('getRequest')
+			->willReturn($request);
+
+		$event->expects($this->never())
+			->method('setResponse');
+
+		$this->subscriber->on_kernel_request($event);
+	}
+}