diff --git a/tests/Util/AuthTestConfig.php b/tests/Util/AuthTestConfig.php
new file mode 100644
index 0000000000..ad2592d077
--- /dev/null
+++ b/tests/Util/AuthTestConfig.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Friendica\Test\Util;
+
+class AuthTestConfig
+{
+	/** @var bool */
+	public static $authenticated = true;
+	/** @var int  */
+	public static $user_id = 42;
+}
diff --git a/tests/Util/authtest/authtest.php b/tests/Util/authtest/authtest.php
index cec0c066ed..7252b6653e 100644
--- a/tests/Util/authtest/authtest.php
+++ b/tests/Util/authtest/authtest.php
@@ -16,6 +16,6 @@ function authtest_install()
 
 function authtest_authenticate($a,&$b)
 {
-	$b['authenticated'] = 1;
-	$b['user_record']   = User::getById(42);
+	$b['authenticated'] = \Friendica\Test\Util\AuthTestConfig::$authenticated;
+	$b['user_record']   = User::getById(\Friendica\Test\Util\AuthTestConfig::$user_id);
 }
diff --git a/tests/legacy/ApiTest.php b/tests/legacy/ApiTest.php
index 4801da13a7..eb5394ec9e 100644
--- a/tests/legacy/ApiTest.php
+++ b/tests/legacy/ApiTest.php
@@ -199,25 +199,6 @@ class ApiTest extends FixtureTest
 		// We could probably do more checks here.
 	}
 
-	/**
-	 * Get the path to a temporary empty PNG image.
-	 *
-	 * @return string Path
-	 */
-	private function getTempImage()
-	{
-		$tmpFile = tempnam(sys_get_temp_dir(), 'tmp_file');
-		file_put_contents(
-			$tmpFile,
-			base64_decode(
-			// Empty 1x1 px PNG image
-				'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8/5+hHgAHggJ/PchI7wAAAABJRU5ErkJggg=='
-			)
-		);
-
-		return $tmpFile;
-	}
-
 	/**
 	 * Test the api_user() function.
 	 *
@@ -999,79 +980,7 @@ class ApiTest extends FixtureTest
 		$this->markTestIncomplete();
 	}
 
-	/**
-	 * Test the \Friendica\Module\Api\Twitter\Media\Upload module.
-	 * @runInSeparateProcess
-	 * @preserveGlobalState disabled
-	 */
-	public function testApiMediaUpload()
-	{
-		$this->expectException(\Friendica\Network\HTTPException\BadRequestException::class);
-		$_SERVER['REQUEST_METHOD'] = Router::POST;
-		(new Upload(DI::app(), DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), $_SERVER))->run();
-	}
 
-	/**
-	 * Test the \Friendica\Module\Api\Twitter\Media\Upload module without an authenticated user.
-	 *
-	 * @return void
-	 */
-	public function testApiMediaUploadWithoutAuthenticatedUser()
-	{
-		$this->expectException(\Friendica\Network\HTTPException\UnauthorizedException::class);
-		BasicAuth::setCurrentUserID();
-		$_SESSION['authenticated'] = false;
-		$_SERVER['REQUEST_METHOD'] = Router::POST;
-		(new Upload(DI::app(), DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), $_SERVER))->run();
-	}
-
-	/**
-	 * Test the \Friendica\Module\Api\Twitter\Media\Upload module with an invalid uploaded media.
-	 *
-	 * @return void
-	 */
-	public function testApiMediaUploadWithMedia()
-	{
-		$this->expectException(\Friendica\Network\HTTPException\InternalServerErrorException::class);
-		$_FILES = [
-			'media' => [
-				'id'       => 666,
-				'tmp_name' => 'tmp_name'
-			]
-		];
-		$_SERVER['REQUEST_METHOD'] = Router::POST;
-		(new Upload(DI::app(), DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), $_SERVER))->run();
-	}
-
-	/**
-	 * Test the \Friendica\Module\Api\Twitter\Media\Upload module with an valid uploaded media.
-	 *
-	 * @return void
-	 */
-	public function testApiMediaUploadWithValidMedia()
-	{
-		$_FILES    = [
-			'media' => [
-				'id'       => 666,
-				'size'     => 666,
-				'width'    => 666,
-				'height'   => 666,
-				'tmp_name' => $this->getTempImage(),
-				'name'     => 'spacer.png',
-				'type'     => 'image/png'
-			]
-		];
-
-		$_SERVER['REQUEST_METHOD'] = Router::POST;
-
-		$response = (new Upload(DI::app(), DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), $_SERVER))->run();
-		$media = json_decode($response->getBody(), true);
-
-		self::assertEquals('image/png', $media['image']['image_type']);
-		self::assertEquals(1, $media['image']['w']);
-		self::assertEquals(1, $media['image']['h']);
-		self::assertNotEmpty($media['image']['friendica_preview_url']);
-	}
 
 	/**
 	 * Test the api_statuses_repeat() function.
diff --git a/tests/src/Module/Api/ApiTest.php b/tests/src/Module/Api/ApiTest.php
index 98e9b2a03c..154f54a1cf 100644
--- a/tests/src/Module/Api/ApiTest.php
+++ b/tests/src/Module/Api/ApiTest.php
@@ -27,9 +27,11 @@ use Friendica\Core\Hook;
 use Friendica\Database\Database;
 use Friendica\DI;
 use Friendica\Security\Authentication;
+use Friendica\Security\BasicAuth;
 use Friendica\Test\FixtureTest;
 use Friendica\Test\Util\AppDouble;
 use Friendica\Test\Util\AuthenticationDouble;
+use Friendica\Test\Util\AuthTestConfig;
 
 abstract class ApiTest extends FixtureTest
 {
@@ -60,9 +62,19 @@ abstract class ApiTest extends FixtureTest
 		// Manual override to bypass API authentication
 		DI::app()->setIsLoggedIn(true);
 
+		AuthTestConfig::$authenticated = true;
+		AuthTestConfig::$user_id = 42;
+
 		$this->installAuthTest();
 	}
 
+	protected function tearDown(): void
+	{
+		BasicAuth::setCurrentUserID();
+
+		parent::tearDown(); // TODO: Change the autogenerated stub
+	}
+
 	/**
 	 * installs auththest.
 	 *
diff --git a/tests/src/Module/Api/Twitter/Media/UploadTest.php b/tests/src/Module/Api/Twitter/Media/UploadTest.php
new file mode 100644
index 0000000000..abc9d8fdc6
--- /dev/null
+++ b/tests/src/Module/Api/Twitter/Media/UploadTest.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace Friendica\Test\src\Module\Api\Twitter\Media;
+
+use Friendica\App\Router;
+use Friendica\DI;
+use Friendica\Module\Api\Twitter\Media\Upload;
+use Friendica\Network\HTTPException\BadRequestException;
+use Friendica\Network\HTTPException\InternalServerErrorException;
+use Friendica\Network\HTTPException\UnauthorizedException;
+use Friendica\Test\src\Module\Api\ApiTest;
+use Friendica\Test\Util\AuthTestConfig;
+
+class UploadTest extends ApiTest
+{
+	/**
+	 * Test the \Friendica\Module\Api\Twitter\Media\Upload module.
+	 */
+	public function testApiMediaUpload()
+	{
+		$this->expectException(BadRequestException::class);
+		$upload = new Upload(DI::app(), DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), ['REQUEST_METHOD' => Router::POST]);
+		$upload->run();
+	}
+
+	/**
+	 * Test the \Friendica\Module\Api\Twitter\Media\Upload module without an authenticated user.
+	 *
+	 * @return void
+	 */
+	public function testApiMediaUploadWithoutAuthenticatedUser()
+	{
+		$this->expectException(UnauthorizedException::class);
+		AuthTestConfig::$authenticated = false;
+		(new Upload(DI::app(), DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), ['REQUEST_METHOD' => Router::POST]))->run();
+	}
+
+	/**
+	 * Test the \Friendica\Module\Api\Twitter\Media\Upload module with an invalid uploaded media.
+	 *
+	 * @return void
+	 */
+	public function testApiMediaUploadWithMedia()
+	{
+		$this->expectException(InternalServerErrorException::class);
+		$_FILES = [
+			'media' => [
+				'id'       => 666,
+				'tmp_name' => 'tmp_name'
+			]
+		];
+		(new Upload(DI::app(), DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), ['REQUEST_METHOD' => Router::POST]))->run();
+	}
+
+	/**
+	 * Test the \Friendica\Module\Api\Twitter\Media\Upload module with an valid uploaded media.
+	 *
+	 * @return void
+	 */
+	public function testApiMediaUploadWithValidMedia()
+	{
+		$_FILES = [
+			'media' => [
+				'id'       => 666,
+				'size'     => 666,
+				'width'    => 666,
+				'height'   => 666,
+				'tmp_name' => $this->getTempImage(),
+				'name'     => 'spacer.png',
+				'type'     => 'image/png'
+			]
+		];
+
+		$response = (new Upload(DI::app(), DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), ['REQUEST_METHOD' => Router::POST]))->run();
+		$media    = json_decode($response->getBody(), true);
+
+		self::assertEquals('image/png', $media['image']['image_type']);
+		self::assertEquals(1, $media['image']['w']);
+		self::assertEquals(1, $media['image']['h']);
+		self::assertNotEmpty($media['image']['friendica_preview_url']);
+	}
+
+	/**
+	 * Get the path to a temporary empty PNG image.
+	 *
+	 * @return string Path
+	 */
+	private function getTempImage()
+	{
+		$tmpFile = tempnam(sys_get_temp_dir(), 'tmp_file');
+		file_put_contents(
+			$tmpFile,
+			base64_decode(
+			// Empty 1x1 px PNG image
+				'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8/5+hHgAHggJ/PchI7wAAAABJRU5ErkJggg=='
+			)
+		);
+
+		return $tmpFile;
+	}
+}