diff --git a/src/Notifications/CheckFailedNotification.php b/src/Notifications/CheckFailedNotification.php
index 63a5771..99da4a1 100644
--- a/src/Notifications/CheckFailedNotification.php
+++ b/src/Notifications/CheckFailedNotification.php
@@ -21,6 +21,7 @@ class CheckFailedNotification extends Notification implements ShouldQueue
 
     public function __construct(protected Check $check, protected Result $result)
     {
+        //
     }
 
     public function getDriver(string $alias): string
diff --git a/tests/Feature/NotificationTest.php b/tests/Feature/NotificationTest.php
new file mode 100644
index 0000000..175db0a
--- /dev/null
+++ b/tests/Feature/NotificationTest.php
@@ -0,0 +1,79 @@
+<?php
+
+
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\Notification;
+use Vormkracht10\LaravelOK\Checks\Base\Check;
+use Vormkracht10\LaravelOK\Checks\Base\Result;
+use Vormkracht10\LaravelOK\Events\CheckFailed;
+use Vormkracht10\LaravelOK\Notifications\CheckFailedNotification;
+use function Pest\Laravel\travel;
+
+$failed = new class extends Check
+{
+    public function run(): Result
+    {
+        return Result::new()->failed('failed');
+    }
+};
+
+it('sends a notification if a check has failed', function () use ($failed) {
+
+    config()->set('ok.notifications.via.mail.to', 'test@example.com');
+
+    $check = $failed->setNotificationInterval(1);
+
+    $event = new CheckFailed($check, $check->run());
+
+    Notification::fake();
+
+    Cache::driver('file')->forget('laravel-ok::notifications::'.$check::class);
+
+    event($event);
+
+    Notification::assertSentTimes(
+        CheckFailedNotification::class, 1
+    );
+});
+
+it('doesn\'t send a notification if the notification interval has not yet passed', function () use ($failed) {
+    config()->set('ok.notifications.via.mail.to', 'test@example.com');
+
+    $check = $failed->setNotificationInterval(30);
+
+    $event = new CheckFailed($check, $check->run());
+
+    Notification::fake();
+
+    Cache::driver('file')->forget('laravel-ok::notifications::'.$check::class);
+
+    event($event);
+
+    event($event);
+
+    Notification::assertSentTimes(
+        CheckFailedNotification::class, 1
+    );
+});
+
+it('does send a notification when the notification interval has passed', function () use ($failed) {
+    config()->set('ok.notifications.via.mail.to', 'test@example.com');
+
+    $check = $failed->setNotificationInterval(30);
+
+    $event = new CheckFailed($check, $check->run());
+
+    Notification::fake();
+
+    Cache::driver('file')->forget('laravel-ok::notifications::'.$check::class);
+
+    event($event);
+
+    travel(30)->minutes();
+
+    event($event);
+
+    Notification::assertSentTimes(
+        CheckFailedNotification::class, 2
+    );
+});