- fix: add constructor

- test

tests/Unit/AppInfo/ApplicationTest.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\AToCal\Tests\Unit\AppInfo;
+
+use OCA\AToCal\AppInfo\Application;
+use PHPUnit\Framework\TestCase;
+use ReflectionMethod;
+
+class ApplicationTest extends TestCase
+{
+	public function testSupportsZeroArgumentConstruction(): void {
+		/*
+		 * The server container instantiates the app class without arguments,
+		 * see ServerContainer::getAppContainer(). The app class must pass the
+		 * app id to App::__construct() itself.
+		 */
+		$constructor = new ReflectionMethod(Application::class, '__construct');
+
+		$this->assertSame(0, $constructor->getNumberOfRequiredParameters());
+	}
+}