diff --git a/tests/MessageHandler/ProcessWatchlistTriggerHandlerTest.php b/tests/MessageHandler/ProcessWatchlistTriggerHandlerTest.php
new file mode 100644
index 0000000..91d45cb
--- /dev/null
+++ b/tests/MessageHandler/ProcessWatchlistTriggerHandlerTest.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Tests\MessageHandler;
+
+use App\Message\ProcessWatchlistTrigger;
+use App\Message\UpdateDomainsFromWatchlist;
+use App\MessageHandler\ProcessWatchlistTriggerHandler;
+use App\Tests\State\WatchlistUpdateProcessorTest;
+use PHPUnit\Framework\Attributes\DependsExternal;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+use Symfony\Component\Messenger\TraceableMessageBus;
+
+final class ProcessWatchlistTriggerHandlerTest extends KernelTestCase
+{
+    #[DependsExternal(WatchlistUpdateProcessorTest::class, 'testCreateWatchlist')]
+    public function testSendMessage()
+    {
+        $container = self::getContainer();
+        $handler = $container->get(ProcessWatchlistTriggerHandler::class);
+
+        /** @var TraceableMessageBus $bus */
+        $bus = $container->get('messenger.bus.default');
+        $bus->reset();
+
+        $handler(new ProcessWatchlistTrigger());
+
+        $dispatched = $bus->getDispatchedMessages();
+        $this->assertNotEmpty($dispatched);
+        $this->assertInstanceOf(UpdateDomainsFromWatchlist::class, $dispatched[0]['message']);
+    }
+}