scripts/run_tests.sh tests/gateway/ on a clean macOS checkout fails 7 tests
that pass on the Linux CI lane. The macOS CI lane runs only -m macos_only,
so these had never executed on a Mac. Each failure was diagnosed
individually, not assumed to share a cause:
* test_systemd_notify::test_notify_supports_systemd_abstract_socket
binds a NUL-prefixed abstract AF_UNIX name, a Linux kernel feature.
-> @pytest.mark.linux_only (the abstract socket IS the subject).
* test_shutdown_forensics::test_spawns_subprocess_and_writes_output
spawn_async_diagnostic() wraps a Linux-only script (ps --sort,
/proc/loadavg, dmesg, pstree) in GNU `timeout`, which macOS lacks.
Popen raises, the producer returns None by design (fail-soft).
-> @pytest.mark.linux_only, replacing a bare skipif(win32).
* test_scale_to_zero::test_suspend_self_{posts_suspend,non_2xx}
bound the fake flaps socket under pytest tmp_path, which exceeds
sun_path (104 B on macOS/BSD, 108 on Linux). Production connects to the
fixed /.fly/api so the code is not length-exposed; only the fake needed
a short home. -> short_sock_dir fixture (gettempdir -> /tmp fallback,
skip if neither fits). Verified with a 130-char TMPDIR on Linux.
* test_buzz_adapter::test_live_media_redacts_long_path_before_bounding
built 160-char path components; a single component is capped at 255 B
on both hosts and the full path hit PATH_MAX (1024) on macOS. The
invariant (path redacted BEFORE the 900-char bound) needs the path to
exceed 900 chars, not 1000+. -> grow 80-char components until the path
passes _MAX_CLI_MESSAGE_CHARS, assert < 1024. Mutation-checked: moving
the redaction after the bound fails the test.
* test_wecom_callback::{test_build_event_extracts_text_message,
test_poll_loop_dispatches_handle_message}
NOT environmental: `_build_event` parses with defusedxml, which ships
only via the `wecom` extra (or transitively via `youtube` -> [all] in
CI). A dev venv without it gets ET=None. -> dependency skipif on
DEFUSEDXML_AVAILABLE (not an OS marker; the 4 other tests in the file
still run).
Verified: scripts/run_tests.sh on macOS: 226 passed, 4 skipped (2
linux_only, 2 defusedxml). python:3.11-slim container with [dev,wecom]:
-m "linux_only and not integration" selects and passes both marked tests;
all 5 files 229 passed.
Ben Barclay
ecefb1e2a2