diff --git a/tests/src/Kernel/DBLogPersistentTest.php b/tests/src/Kernel/DBLogPersistentTest.php
new file mode 100644
index 0000000..f47e84d
--- /dev/null
+++ b/tests/src/Kernel/DBLogPersistentTest.php
@@ -0,0 +1,130 @@
+<?php
+
+namespace Drupal\Tests\dblog_persistent\Kernel;
+
+use Drupal\Core\Logger\RfcLogLevel;
+use Drupal\dblog_persistent\Entity\Channel;
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Test basic functionality of the module.
+ *
+ * @group dblog_persistent
+ */
+class DBLogPersistentTest extends KernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'dblog',
+    'dblog_persistent',
+    'system',
+    'user',
+  ];
+
+  /**
+   * The dblog_persistent.storage service.
+   *
+   * @var \Drupal\dblog_persistent\DbLogPersistentStorageInterface
+   */
+  private $storage;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+    $this->installSchema('dblog', 'watchdog');
+    $this->installSchema('dblog_persistent', 'dblog_persistent');
+    $this->installEntitySchema('user');
+    $this->installConfig([
+      'dblog',
+      'dblog_persistent',
+    ]);
+    $this->storage = \Drupal::service('dblog_persistent.storage');
+  }
+
+  /**
+   * Test functionality.
+   */
+  public function testPersistentLog() {
+    Channel::create([
+      'id' => 'channel1',
+      'label' => 'Channel 1',
+      'types' => ['type1' => 'type1'],
+      'levels' => [RfcLogLevel::INFO => RfcLogLevel::INFO],
+      'message' => 'substring',
+    ])->save();
+
+    Channel::create([
+      'id' => 'channel2',
+      'label' => 'Channel 2',
+    ])->save();
+
+    $logger1 = \Drupal::logger('type1');
+    $logger1->info('1: This message contains substring and should be logged.');
+    $logger1->info('2: This message should not be logged.');
+    $logger1->warning('3: This message contains substring and should not be logged.');
+
+    $logger2 = \Drupal::logger('type2');
+    $logger2->info('4: This message contains substring and should not be logged.');
+
+    $messages = [];
+    foreach ($this->storage->getChannel('channel1') as $record) {
+      $messages[] = [
+        'type'     => $record->type,
+        'severity' => $record->severity,
+        'message'  => $record->message,
+      ];
+    }
+    $this->assertEqual($messages, [
+      [
+        'type'     => 'type1',
+        'severity' => RfcLogLevel::INFO,
+        'message'  => '1: This message contains substring and should be logged.',
+      ],
+    ]);
+
+    $messages = [];
+    foreach ($this->storage->getChannel('channel2') as $record) {
+      $messages[] = [
+        'type'     => $record->type,
+        'severity' => $record->severity,
+        'message'  => $record->message,
+      ];
+    }
+    $this->assertEqual($messages, [
+      [
+        'type'     => 'type1',
+        'severity' => RfcLogLevel::INFO,
+        'message'  => '1: This message contains substring and should be logged.',
+      ],
+      [
+        'type'     => 'type1',
+        'severity' => RfcLogLevel::INFO,
+        'message'  => '2: This message should not be logged.',
+      ],
+      [
+        'type'     => 'type1',
+        'severity' => RfcLogLevel::WARNING,
+        'message'  => '3: This message contains substring and should not be logged.',
+      ],
+      [
+        'type'     => 'type2',
+        'severity' => RfcLogLevel::INFO,
+        'message'  => '4: This message contains substring and should not be logged.',
+      ],
+    ]);
+
+    $this->assertEqual($this->storage->countChannel('channel1'), 1);
+    $this->assertEqual($this->storage->countChannel('channel2'), 4);
+
+    $this->storage->clearChannel('channel1');
+
+    $this->assertEqual($this->storage->countChannel('channel1'), 0);
+    $this->assertEqual($this->storage->countChannel('channel2'), 4);
+
+  }
+
+}