Files
mergerfs/tests/TEST_posix_fsync_flush
T
Antonio SJ Musumeci ef1e01b5a5 Add unit and integration tests for recently changed code
Unit tests (29 new in tests/tests.cpp):
- str::eq() and str::startswith() char* nullptr safety
- str::from() u64/s64/int suffix parsing (K/M/G/T, overflow, invalid)
- num::humanize() byte formatting (0, 512, 1K, 1M, 1G, 1T, non-exact)
- RmdirErr priority error accumulation (ENOTEMPTY/EEXIST override rules)
- HashSet inline-to-heap growth, empty string, and large insertion
- fs::inode algorithm switching (valid/invalid names, passthrough raw ino,
  distinct inodes across algorithms)
- RND::rand64() bounds (range, max, shrink_to_rand_elem)
- Branches::Impl copy and move assignment re-links default_minfreespace

Integration tests (5 new in tests/):
- TEST_policy_lup: LUP policy create and search
- TEST_rmdir_enotempty_priority: rmdir returns ENOTEMPTY for non-empty dirs
- TEST_open_after_unlink: read/write via fd after unlink
- TEST_api_xattr: mergerfs xattr API (fullpath, relpath, basepath, allpaths)
- TEST_movefile_enospc: moveonenospc configuration round-trip

Also: remove xattr nosys checks from TEST_cfg_xattr_modes, reformat
integration test scripts to use temp_dir/cleanup_dir helpers, and
minor parameter alignment changes in fuse_getxattr, fuse_init,
fuse_rename.
2026-04-29 17:41:00 -04:00

85 lines
2.8 KiB
Python
Executable File

#!/usr/bin/env python3
import os
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 temp_dir
from posix_parity import touch
def main():
if len(sys.argv) != 2:
print("usage: TEST_posix_fsync_flush <mountpoint>", file=sys.stderr)
return 1
mount = sys.argv[1]
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")
merge_dir = join(merge_base, "dir")
native_dir = join(native_base, "dir")
touch(merge_file, b"abc")
touch(native_file, b"abc")
os.makedirs(merge_dir, exist_ok=True)
os.makedirs(native_dir, exist_ok=True)
mfd = os.open(merge_file, os.O_RDWR)
nfd = os.open(native_file, os.O_RDWR)
try:
os.lseek(mfd, 0, os.SEEK_END)
os.lseek(nfd, 0, os.SEEK_END)
os.write(mfd, b"-merge")
os.write(nfd, b"-native")
err = compare_calls("fsync file", lambda: os.fsync(mfd), lambda: os.fsync(nfd))
if err:
return fail(err)
finally:
os.close(mfd)
os.close(nfd)
mdirfd = os.open(merge_dir, os.O_RDONLY | os.O_DIRECTORY)
ndirfd = os.open(native_dir, os.O_RDONLY | os.O_DIRECTORY)
try:
err = compare_calls("fsync dir", lambda: os.fsync(mdirfd), lambda: os.fsync(ndirfd))
if err:
return fail(err)
finally:
os.close(mdirfd)
os.close(ndirfd)
bad_m = os.open(merge_file, os.O_RDONLY)
bad_n = os.open(native_file, os.O_RDONLY)
os.close(bad_m)
os.close(bad_n)
err = compare_calls("fsync EBADF", lambda: os.fsync(bad_m), lambda: os.fsync(bad_n))
if err:
return fail(err)
# Close-to-flush parity check: both paths should preserve appended payload.
with open(merge_file, "rb") as mf, open(native_file, "rb") as nf:
mdata = mf.read()
ndata = nf.read()
if not (mdata.startswith(b"abc") and ndata.startswith(b"abc")):
return fail(f"flush content prefix mismatch mergerfs={mdata!r} native={ndata!r}")
return 0
finally:
cleanup_dir(merge_base)
if __name__ == "__main__":
raise SystemExit(main())