micropython/tests/extmod/vfs_fat_ramdisk.py
Damien George 5ef0d2ab14 tests/extmod: Remove conditional import of uos_vfs, it no longer exists.
This conditional import was only used to get the tests working on the unix
coverage build, which has now switched to use VFS by default so the uos
module alone has the required functionality.
2018-06-06 14:28:23 +10:00

98 lines
2.1 KiB
Python

try:
import uerrno
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)
except MemoryError:
print("SKIP")
raise SystemExit
uos.VfsFat.mkfs(bdev)
print(b"FOO_FILETXT" not in bdev.data)
print(b"hello!" not in bdev.data)
vfs = uos.VfsFat(bdev)
uos.mount(vfs, "/ramdisk")
print("statvfs:", vfs.statvfs("/ramdisk"))
print("getcwd:", vfs.getcwd())
try:
vfs.stat("no_file.txt")
except OSError as e:
print(e.args[0] == uerrno.ENOENT)
with vfs.open("foo_file.txt", "w") as f:
f.write("hello!")
print(list(vfs.ilistdir()))
print("stat root:", vfs.stat("/"))
print("stat file:", vfs.stat("foo_file.txt")[:-3]) # timestamps differ across runs
print(b"FOO_FILETXT" in bdev.data)
print(b"hello!" in bdev.data)
vfs.mkdir("foo_dir")
vfs.chdir("foo_dir")
print("getcwd:", vfs.getcwd())
print(list(vfs.ilistdir()))
with vfs.open("sub_file.txt", "w") as f:
f.write("subdir file")
try:
vfs.chdir("sub_file.txt")
except OSError as e:
print(e.args[0] == uerrno.ENOENT)
vfs.chdir("..")
print("getcwd:", vfs.getcwd())
uos.umount(vfs)
vfs = uos.VfsFat(bdev)
print(list(vfs.ilistdir(b"")))
# list a non-existent directory
try:
vfs.ilistdir(b"no_exist")
except OSError as e:
print('ENOENT:', e.args[0] == uerrno.ENOENT)