Files
mergerfs/tests/TEST_posix_ioctl
Antonio SJ Musumeci 84e4cdeb7e make all integration tests self-contained with ephemeral mounts
- Add mergerfs_mount() context manager in posix_parity.py that creates
  temporary branch dirs in tests/.test_tmp/, mounts an ephemeral mergerfs
  instance, and cleans up after use.
- Add find_mergerfs(), find_fusermount(), mount_mergerfs(), unmount_mergerfs()
  helpers.
- Update run-tests to invoke each TEST_* script without a mountpoint arg.
- Update README.md to document the new `python3 tests/run-tests` invocation.
- Fix 44 tests to use mergerfs_mount() instead of expecting a pre-mounted path.
- Add tempfile import to 10 tests that were missing it.
- Fix TEST_mount_lifecycle to use mergerfs_mount() context manager.
- Fix TEST_posix_tmpfile missing join import.
- Fix TEST_cfg_xattr_modes error message framing (no "(known bug)").
- Fix TEST_posix_copy_file_range: loop-copy full size, compare st_size and
  SHA256 hash; add NativeTmp for space management; route native temp to
  tests/.test_tmp/ to avoid ENOSPC on /tmp.
- Fix TEST_posix_getattr_fgetattr: st_cmp skips st_size for dirs; add
  compare_ino param for safe inode comparison when inodecalc=passthrough.
- Fix TEST_unlink_rename, TEST_use_* tests: namespace cleanup, consistent
  variable naming, None check for cmpfunc.
- Fix TEST_readlink_semantics: remove type annotations to support older
  Python; wrap in mergerfs_mount() try/except.
- Add flush=True to run-tests print so test names show immediately.
2026-05-07 21:47:40 -04:00

70 lines
2.1 KiB
Python
Executable File

#!/usr/bin/env python3
import array
import fcntl
import os
import termios
import sys
import tempfile
from posix_parity import cleanup_dir
from posix_parity import compare_calls
from posix_parity import fail
from posix_parity import join
from posix_parity import mergerfs_mount
from posix_parity import temp_dir
from posix_parity import touch
def fionread(fd):
buf = array.array("i", [0])
fcntl.ioctl(fd, termios.FIONREAD, buf, True)
return buf[0]
def main():
try:
with mergerfs_mount() as (mount, _):
with tempfile.TemporaryDirectory() as native:
merge_base = temp_dir(mount)
try:
native_base = join(native, os.path.basename(merge_base))
os.makedirs(native_base, exist_ok=True)
merge_file = join(merge_base, "file")
native_file = join(native_base, "file")
touch(merge_file, b"hello-world")
touch(native_file, b"hello-world")
mfd = os.open(merge_file, os.O_RDONLY)
nfd = os.open(native_file, os.O_RDONLY)
try:
err = compare_calls("ioctl FIONREAD", lambda: fionread(mfd), lambda: fionread(nfd), lambda a, b: a == b)
if err:
return fail(err)
os.lseek(mfd, 5, os.SEEK_SET)
os.lseek(nfd, 5, os.SEEK_SET)
err = compare_calls(
"ioctl FIONREAD after seek",
lambda: fionread(mfd),
lambda: fionread(nfd),
lambda a, b: a == b,
)
if err:
return fail(err)
finally:
os.close(mfd)
os.close(nfd)
return 0
finally:
cleanup_dir(merge_base)
except RuntimeError as exc:
print(str(exc), end="")
return 77
if __name__ == "__main__":
raise SystemExit(main())