fix(tests): missing success information

tests/test_backup.py

@@ -99,7 +99,6 @@ def check_backup_is_incremental(path: str) -> bool:
     print("Checking that backup is incremental:")
 
     dirs = os.listdir(path)
-    is_incremental = True
     for directory in dirs:
         files_count = 0
         folder_path = os.path.join(path, directory)
@@ -107,10 +106,11 @@ def check_backup_is_incremental(path: str) -> bool:
             files_count = len(os.listdir(folder_path))
             if files_count == 0:
                 u.error("Folder {} is empty".format(folder_path))
-                is_incremental = False
                 os.rmdir(folder_path)
+                return False
+    u.success("Folder {} is not empty".format(folder_path))
 
-    return is_incremental
+    return True
 
 
 def check_local_backup(path: str) -> bool: