circuitpython/tests/import/mpy_native.py

97 lines
2.3 KiB
Python

# test importing of .mpy files with native code (x64 only)
import sys, uio
try:
uio.IOBase
import uos
uos.mount
except (ImportError, AttributeError):
print("SKIP")
raise SystemExit
if not (sys.platform == "linux" and sys.maxsize > 2 ** 32):
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 = {
# bad architecture
"/mod0.mpy": b"M\x04\xff\x00\x10",
# test loading of viper and asm
"/mod1.mpy": (
b"M\x04\x0b\x1f\x20" # header
b"\x38" # n bytes, bytecode
b"\x01\x00\x00\x00\x00\x00\x05\x00\x00\x00\x00\xff" # prelude
b"\x11" # LOAD_CONST_NONE
b"\x5b" # RETURN_VALUE
b"\x02m\x02m\x00\x02" # simple_name, source_file, n_obj, n_raw_code
b"\x22" # n bytes, viper code
b"\x00\x00\x00\x00\x00\x00" # dummy machine code
b"\x00\x00" # qstr0
b"\x01\x0c\x0aprint" # n_qstr, qstr0
b"\x00\x00\x00" # scope_flags, n_obj, n_raw_code
b"\x23" # n bytes, asm code
b"\x00\x00\x00\x00\x00\x00\x00\x00" # dummy machine code
b"\x00\x00\x00" # scope_flags, n_pos_args, type_sig
),
}
# 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)
print(mod, "OK")
except ValueError as er:
print(mod, "ValueError", er)
# unmount and undo path addition
uos.umount("/userfs")
sys.path.pop()