diff --git a/tests/ApiTest.php b/tests/ApiTest.php
index a562901983..c8443512c8 100644
--- a/tests/ApiTest.php
+++ b/tests/ApiTest.php
@@ -5,6 +5,7 @@
 
 namespace Friendica\Test;
 
+use Friendica\App;
 use Friendica\Core\Config;
 use Friendica\Core\PConfig;
 use Friendica\Network\BadRequestException;
@@ -25,8 +26,13 @@ class ApiTest extends DatabaseTest
 	 */
 	protected function setUp()
 	{
+		global $a;
 		parent::setUp();
 
+		// Reusable App object
+		$this->app = new App(__DIR__.'/../');
+		$a = $this->app;
+
 		// User data that the test database is populated with
 		$this->selfUser = [
 			'id' => 42,
@@ -56,6 +62,13 @@ class ApiTest extends DatabaseTest
 			'authenticated' => true,
 			'uid' => $this->selfUser['id']
 		];
+
+		// Default config
+		Config::set('config', 'hostname', 'localhost');
+		Config::set('system', 'throttle_limit_day', 100);
+		Config::set('system', 'throttle_limit_week', 100);
+		Config::set('system', 'throttle_limit_month', 100);
+		Config::set('system', 'theme', 'system_theme');
 	}
 
 	/**
diff --git a/tests/DatabaseTest.php b/tests/DatabaseTest.php
index 04509724ac..e79e9237be 100644
--- a/tests/DatabaseTest.php
+++ b/tests/DatabaseTest.php
@@ -6,8 +6,6 @@
 namespace Friendica\Test;
 
 use dba;
-use Friendica\App;
-use Friendica\Core\Config;
 use Friendica\Database\DBStructure;
 use PHPUnit_Extensions_Database_DB_IDatabaseConnection;
 use PHPUnit\DbUnit\DataSet\YamlDataSet;
@@ -19,35 +17,9 @@ use PHPUnit\Framework\TestCase;
  */
 abstract class DatabaseTest extends TestCase
 {
-	/**
-	 * @var \Friendica\App
-	 */
-	protected $app;
 
 	use TestCaseTrait;
 
-	/**
-	 * Creates basic instances for testing with databases
-	 *
-	 * @throws \Exception
-	 */
-	protected function setUp()
-	{
-		global $a;
-		parent::setUp();
-
-		// Reusable App object
-		$this->app = new App(__DIR__.'/../');
-		$a = $this->app;
-
-		// Default config
-		Config::set('config', 'hostname', 'localhost');
-		Config::set('system', 'throttle_limit_day', 100);
-		Config::set('system', 'throttle_limit_week', 100);
-		Config::set('system', 'throttle_limit_month', 100);
-		Config::set('system', 'theme', 'system_theme');
-	}
-
 	/**
 	 * Renames an eventually existing .htconfig.php to .htconfig.php.tmp
 	 * Creates a new .htconfig.php for bin/worker.php execution
diff --git a/tests/src/Core/Cache/CacheTest.php b/tests/src/Core/Cache/CacheTest.php
index bbbb6506a4..5be0e4b893 100644
--- a/tests/src/Core/Cache/CacheTest.php
+++ b/tests/src/Core/Cache/CacheTest.php
@@ -2,6 +2,8 @@
 
 namespace Friendica\Test\src\Core\Cache;
 
+use Friendica\App;
+use Friendica\Core\Config;
 use Friendica\Test\DatabaseTest;
 use Friendica\Util\DateTimeFormat;
 
@@ -16,8 +18,20 @@ abstract class CacheTest extends DatabaseTest
 
 	protected function setUp()
 	{
+		global $a;
 		parent::setUp();
 		$this->instance = $this->getInstance();
+
+		// Reusable App object
+		$this->app = new App(__DIR__.'/../');
+		$a = $this->app;
+
+		// Default config
+		Config::set('config', 'hostname', 'localhost');
+		Config::set('system', 'throttle_limit_day', 100);
+		Config::set('system', 'throttle_limit_week', 100);
+		Config::set('system', 'throttle_limit_month', 100);
+		Config::set('system', 'theme', 'system_theme');
 	}
 
 	function testSimple() {
diff --git a/tests/src/Core/Lock/LockTest.php b/tests/src/Core/Lock/LockTest.php
index c8acd74067..dafbd74a6f 100644
--- a/tests/src/Core/Lock/LockTest.php
+++ b/tests/src/Core/Lock/LockTest.php
@@ -2,7 +2,10 @@
 
 namespace Friendica\Test\src\Core\Lock;
 
+use Friendica\App;
+use Friendica\Core\Config;
 use Friendica\Test\DatabaseTest;
+use PHPUnit\Framework\TestCase;
 
 abstract class LockTest extends DatabaseTest
 {
@@ -15,8 +18,20 @@ abstract class LockTest extends DatabaseTest
 
 	protected function setUp()
 	{
+		global $a;
 		parent::setUp();
 		$this->instance = $this->getInstance();
+
+		// Reusable App object
+		$this->app = new App(__DIR__.'/../');
+		$a = $this->app;
+
+		// Default config
+		Config::set('config', 'hostname', 'localhost');
+		Config::set('system', 'throttle_limit_day', 100);
+		Config::set('system', 'throttle_limit_week', 100);
+		Config::set('system', 'throttle_limit_month', 100);
+		Config::set('system', 'theme', 'system_theme');
 	}
 
 	public function testLock() {