Files
mergerfs/tests/TEST_posix_open_read_write
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

89 lines
3.0 KiB
Python
Executable File

#!/usr/bin/env python3
import os
import sys
import tempfile
from posix_parity import cleanup_dir
from posix_parity import cleanup_paths
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_open_read_write <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_missing = join(merge_base, "missing")
native_missing = join(native_base, "missing")
merge_dir = join(merge_base, "dir")
native_dir = join(native_base, "dir")
merge_notdir = join(merge_base, "notdir")
native_notdir = join(native_base, "notdir")
cleanup_paths([merge_file, merge_notdir])
touch(merge_file, b"123456", 0o644)
touch(native_file, b"123456", 0o644)
os.makedirs(merge_dir, exist_ok=True)
os.makedirs(native_dir, exist_ok=True)
touch(merge_notdir, b"x", 0o644)
touch(native_notdir, b"x", 0o644)
err = compare_calls("open ENOENT", lambda: os.open(merge_missing, os.O_RDONLY), lambda: os.open(native_missing, os.O_RDONLY))
if err:
return fail(err)
err = compare_calls("open EISDIR", lambda: os.open(merge_dir, os.O_WRONLY), lambda: os.open(native_dir, os.O_WRONLY))
if err:
return fail(err)
err = compare_calls(
"open ENOTDIR",
lambda: os.open(join(merge_notdir, "child"), os.O_RDONLY),
lambda: os.open(join(native_notdir, "child"), os.O_RDONLY),
)
if err:
return fail(err)
mfd = os.open(merge_file, os.O_RDWR)
nfd = os.open(native_file, os.O_RDWR)
try:
os.lseek(mfd, 0, os.SEEK_SET)
os.lseek(nfd, 0, os.SEEK_SET)
m_data = os.read(mfd, 6)
n_data = os.read(nfd, 6)
if m_data != n_data:
return fail(f"read parity mismatch mergerfs={m_data!r} native={n_data!r}")
os.lseek(mfd, 0, os.SEEK_SET)
os.lseek(nfd, 0, os.SEEK_SET)
mw = os.write(mfd, b"abc")
nw = os.write(nfd, b"abc")
if mw != nw:
return fail(f"write count mismatch mergerfs={mw} native={nw}")
finally:
os.close(mfd)
os.close(nfd)
return 0
finally:
cleanup_dir(merge_base)
if __name__ == "__main__":
raise SystemExit(main())