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# test importing of invalid .mpy files
import sys, uio
try:
uio.IOBase
import uos
uos.mount
except (ImportError, AttributeError):
print("SKIP")
raise SystemExit
class UserFile(uio.IOBase):
def __init__(self, data):
self.data = data
self.pos = 0
def read(self):
return self.data
def readinto(self, buf):
n = 0
while n < len(buf) and self.pos < len(self.data):
buf[n] = self.data[self.pos]
n += 1
self.pos += 1
return n
def ioctl(self, req, arg):
return 0
class UserFS:
def __init__(self, files):
self.files = files
def mount(self, readonly, mksfs):
pass
def umount(self):
pass
def stat(self, path):
if path in self.files:
return (32768, 0, 0, 0, 0, 0, 0, 0, 0, 0)
raise OSError
def open(self, path, mode):
return UserFile(self.files[path])
# these are the test .mpy files
user_files = {
'/mod0.mpy': b'', # empty file
'/mod1.mpy': b'M', # too short header
'/mod2.mpy': b'M\x00\x00\x00', # bad version
'/mod3.mpy': b'M\x00\x00\x00\x7f', # qstr window too large
}
# create and mount a user filesystem
uos.mount(UserFS(user_files), '/userfs')
sys.path.append('/userfs')
# import .mpy files from the user filesystem
for i in range(len(user_files)):
mod = 'mod%u' % i
try:
__import__(mod)
except ValueError as er:
print(mod, 'ValueError', er)
# unmount and undo path addition
uos.umount('/userfs')
sys.path.pop()
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