More tests and refactoring

tests/Notification/NtfyTest.php

@@ -0,0 +1,24 @@
+<?php declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+use App\Notification\Ntfy;
+
+use Ntfy\Server;
+use Ntfy\Client;
+use Ntfy\Message;
+final class NtfyTest extends TestCase
+{
+    /**
+     * @doesNotPerformAssertions
+     */
+    public function testDoesSomething(): void
+    {
+        //Dependency
+        $client = $this->createStub(Client::class);
+
+        $sut = new Ntfy($client);
+
+        $client->expects($this->once())->method('send');
+        $sut->send('title','text');
+    }
+}