micropython/tests/extmod/vfs_fat_more.py

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try:
import uos
except ImportError:
print("SKIP")
raise SystemExit
try:
uos.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]
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]
def ioctl(self, op, arg):
#print("ioctl(%d, %r)" % (op, arg))
if op == 4: # BP_IOCTL_SEC_COUNT
return len(self.data) // self.SEC_SIZE
if op == 5: # BP_IOCTL_SEC_SIZE
return self.SEC_SIZE
try:
bdev = RAMFS(50)
bdev2 = RAMFS(50)
except MemoryError:
print("SKIP")
raise SystemExit
# first we umount any existing mount points the target may have
try:
uos.umount('/')
except OSError:
pass
for path in uos.listdir('/'):
uos.umount('/' + path)
uos.VfsFat.mkfs(bdev)
uos.mount(bdev, '/')
print(uos.getcwd())
f = open('test.txt', 'w')
f.write('hello')
f.close()
print(uos.listdir())
print(uos.listdir('/'))
print(uos.stat('')[:-3])
print(uos.stat('/')[:-3])
print(uos.stat('test.txt')[:-3])
print(uos.stat('/test.txt')[:-3])
f = open('/test.txt')
print(f.read())
f.close()
uos.rename('test.txt', 'test2.txt')
print(uos.listdir())
uos.rename('test2.txt', '/test3.txt')
print(uos.listdir())
uos.rename('/test3.txt', 'test4.txt')
print(uos.listdir())
uos.rename('/test4.txt', '/test5.txt')
print(uos.listdir())
uos.mkdir('dir')
print(uos.listdir())
uos.mkdir('/dir2')
print(uos.listdir())
uos.mkdir('dir/subdir')
print(uos.listdir('dir'))
for exist in ('', '/', 'dir', '/dir', 'dir/subdir'):
try:
uos.mkdir(exist)
except OSError as er:
print('mkdir OSError', er.args[0] == 17) # EEXIST
uos.chdir('/')
print(uos.stat('test5.txt')[:-3])
uos.VfsFat.mkfs(bdev2)
uos.mount(bdev2, '/sys')
print(uos.listdir())
print(uos.listdir('sys'))
print(uos.listdir('/sys'))
uos.rmdir('dir2')
uos.remove('test5.txt')
print(uos.listdir())
uos.umount('/')
print(uos.getcwd())
print(uos.listdir())
print(uos.listdir('sys'))
# test importing a file from a mounted FS
import sys
sys.path.clear()
sys.path.append('/sys')
with open('sys/test_module.py', 'w') as f:
f.write('print("test_module!")')
import test_module