Try to unregirster share backend after each test

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Author: MorrisJobke

apps/files_sharing/tests/SharedStorageTest.php

@@ -71,6 +71,9 @@ protected function tearDown(): void {
 
 		\OC\Files\Filesystem::getLoader()->removeStorageWrapper('oc_trashbin');
 
+		\OC\Share\Share::unregisterBackend('file');
+		\OC\Share\Share::unregisterBackend('folder');
+
 		parent::tearDown();
 	}
 

lib/private/Share/Share.php

@@ -91,6 +91,15 @@ public static function registerBackend($itemType, $class, $collectionOf = null,
 		return false;
 	}
 
+	/**
+	 * Unregister a sharing backend
+	 * @param string $itemType Item type
+	 * @internal FOR TESTING ONLY
+	 */
+	public static function unregisterBackend($itemType) {
+		unset(self::$backendTypes[$itemType]);
+	}
+
 	/**
 	 * Get the items of item type shared with the current user
 	 * @param string $itemType