backups: use a real targetId

src/test/storage-test.js

@@ -24,7 +24,7 @@ const backupTargets = require('../backuptargets.js'),
 const chunk = s3._chunk;
 
 describe('Storage', function () {
-    const { setup, cleanup } = common;
+    const { setup, cleanup, getDefaultBackupTarget } = common;
 
     before(setup);
     after(cleanup);
@@ -41,9 +41,7 @@ describe('Storage', function () {
 
         before(async function () {
             gTmpFolder = fs.mkdtempSync(path.join(os.tmpdir(), 'filesystem-storage-test_'));
-
-            defaultBackupTarget = await backupTargets._getDefault();
-
+            defaultBackupTarget = await getDefaultBackupTarget();
             gBackupConfig.backupFolder = path.join(gTmpFolder, 'backups/');
         });