test <class 'VfsLfs1'>
<io.TextIOWrapper>
<io.FileIO>
open OSError
littlefs
littlefs
b'littlefsmore'
b'littlefs'
b'littlefsMORE'
0
3
open OSError
littlefs
b'littlefsMORE'
test <class 'VfsLfs2'>
<io.TextIOWrapper>
<io.FileIO>
open OSError
littlefs
littlefs
b'littlefsmore'
b'littlefs'
b'littlefsMORE'
0
3
open OSError
littlefs
b'littlefsMORE'