circuitpython/tests/extmod/vfs_fat_case.py

76 lines
1.7 KiB
Python

import errno
import os as os
try:
os.VfsFat
except AttributeError:
print("SKIP")
raise SystemExit
class RAMFS:
SEC_SIZE = 512
def __init__(self, blocks):
self.data = bytearray(blocks * self.SEC_SIZE)
def readblocks(self, n, buf):
# print("readblocks(%s, %x(%d))" % (n, id(buf), len(buf)))
for i in range(len(buf)):
buf[i] = self.data[n * self.SEC_SIZE + i]
return 0
def writeblocks(self, n, buf):
# print("writeblocks(%s, %x)" % (n, id(buf)))
for i in range(len(buf)):
self.data[n * self.SEC_SIZE + i] = buf[i]
return 0
def ioctl(self, op, arg):
# print("ioctl(%d, %r)" % (op, arg))
if op == 4: # MP_BLOCKDEV_IOCTL_BLOCK_COUNT
return len(self.data) // self.SEC_SIZE
if op == 5: # MP_BLOCKDEV_IOCTL_BLOCK_SIZE
return self.SEC_SIZE
try:
bdev = RAMFS(50)
except MemoryError:
print("SKIP")
raise SystemExit
os.VfsFat.mkfs(bdev)
vfs = os.VfsFat(bdev)
os.mount(vfs, "/ramdisk")
os.chdir("/ramdisk")
vfs.label = "labelæ"
# This label would normally be LABELÆ but our limited upper casing does "LABELæ"
print(vfs.label)
# Check ASCII case-insensitivity
vfs.mkdir("fooaz")
print(os.listdir(""))
vfs.rmdir("fOOAZ")
# Check ASCII case-insensitivity for long names (8+ characters)
vfs.mkdir("123456789fooaz")
print(os.listdir(""))
vfs.rmdir("123456789fOOAZ")
# Characters outside of a-z are case sensitive.
vfs.mkdir("extended_æ")
print(os.listdir(""))
# Normally this would work ok. With our limited uppercasing, it won't.
try:
vfs.rmdir("extended_Æ")
except OSError as e:
print(e.errno == errno.ENOENT)
vfs.rmdir("extended_æ")
# Emoji test for fun.
vfs.mkdir("emoji_😀")
vfs.rmdir("emoji_😀")