✨ Added new tests and fixed small bugs

classquiz/storage/local_storage.py

@@ -12,11 +12,6 @@ import aiofiles.os
 _DEFAULT_CHUNK_SIZE = 32768  # bytes; arbitrary
 
 
-async def aioshutil_copyfileobj(async_fsrc, async_fdst, *, chunksize: int = _DEFAULT_CHUNK_SIZE) -> None:
-    while (chunk := await async_fsrc.read(chunksize)) != b"":
-        await async_fdst.write(chunk)
-
-
 class LocalStorage:
     def __init__(self, base_path: str):
         self.base_path = base_path

classquiz/storage/s3_storage.py

@@ -134,8 +134,9 @@ class S3Storage:
         )
 
     def size(self, file_name: str) -> int | None:
-        res = self.client.stat_object(bucket_name=self.bucket_name, object_name=file_name)
-        if res is None:
+        try:
+            res = self.client.stat_object(bucket_name=self.bucket_name, object_name=file_name)
+        except minio.error.S3Error:
             return None
         return res.size