Fix BaseApi and corresponding tests

tests/Util/AppDouble.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Friendica\Test\Util;
+
+use Friendica\App;
+
+/**
+ * Making the App class overridable for specific situations
+ *
+ * @see App
+ */
+class AppDouble extends App
+{
+	/** @var bool Marks/Overwrites if the user is currently logged in */
+	protected $isLoggedIn = false;
+
+	/**
+	 * Manually overwrite the "isLoggedIn" behavior
+	 *
+	 * @param bool $isLoggedIn
+	 */
+	public function setIsLoggedIn(bool $isLoggedIn)
+	{
+		$this->isLoggedIn = $isLoggedIn;
+	}
+
+	public function isLoggedIn()
+	{
+		return $this->isLoggedIn;
+	}
+}

tests/src/Module/Api/ApiTest.php

@@ -21,12 +21,14 @@
 
 namespace Friendica\Test\src\Module\Api;
 
+use Friendica\App;
 use Friendica\Core\Addon;
 use Friendica\Core\Hook;
 use Friendica\Database\Database;
 use Friendica\DI;
 use Friendica\Security\Authentication;
 use Friendica\Test\FixtureTest;
+use Friendica\Test\Util\AppDouble;
 use Friendica\Test\Util\AuthenticationDouble;
 
 abstract class ApiTest extends FixtureTest
@@ -51,9 +53,13 @@ abstract class ApiTest extends FixtureTest
 		parent::setUp(); // TODO: Change the autogenerated stub
 
 		$this->dice = $this->dice
-			->addRule(Authentication::class, ['instanceOf' => AuthenticationDouble::class, 'shared' => true]);
+			->addRule(Authentication::class, ['instanceOf' => AuthenticationDouble::class, 'shared' => true])
+			->addRule(App::class, ['instanceOf' => AppDouble::class, 'shared' => true]);
 		DI::init($this->dice);
 
+		// Manual overwrite for API testrs :-)
+		DI::app()->setIsLoggedIn(true);
+
 		$this->installAuthTest();
 	}