--- /dev/null
+<?php
+
+namespace Drupal\Tests\syslog\Kernel;
+
+use Drupal\KernelTests\KernelTestBase;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\RequestStack;
+
+/**
+ * Test syslog logger functionality.
+ *
+ * @group syslog
+ * @coversDefaultClass \Drupal\syslog\Logger\SysLog
+ */
+class SyslogTest extends KernelTestBase {
+
+ public static $modules = ['syslog', 'syslog_test'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->installConfig(['syslog']);
+ }
+
+ /**
+ * @covers ::log
+ */
+ public function testSyslogWriting() {
+
+ $request = Request::create('/page-not-found', 'GET', [], [], [], ['REMOTE_ADDR' => '1.2.3.4']);
+ $request->headers->set('Referer', 'other-site');
+ \Drupal::requestStack()->push($request);
+
+ $user = $this->getMockBuilder('Drupal\Core\Session\AccountInterface')->getMock();
+ $user->method('id')->willReturn(42);
+ $this->container->set('current_user', $user);
+
+ \Drupal::logger('my_module')->warning('My warning message.', ['link' => '/my-link']);
+
+ $log_filename = $this->container->get('file_system')->realpath('public://syslog.log');
+ $logs = explode(PHP_EOL, file_get_contents($log_filename));
+ $log = explode('|', $logs[0]);
+
+ global $base_url;
+ $this->assertEquals($base_url, $log[0]);
+ $this->assertEquals('my_module', $log[2]);
+ $this->assertEquals('1.2.3.4', $log[3]);
+ $this->assertEquals($base_url . '/page-not-found', $log[4]);
+ $this->assertEquals('other-site', $log[5]);
+ $this->assertEquals('42', $log[6]);
+ $this->assertEquals('/my-link', $log[7]);
+ $this->assertEquals('My warning message.', $log[8]);
+ }
+
+}