hermes-agent/tests/hermes_cli/test_update_zip_atomic_replace.py
Teknium 6b81590c55
test: prune low-value tests suite-wide (wave 1) — 46,820 → 28,106 test functions
Systematic prune per AGENTS.md test policy, one pass over every major
test tree (gateway, hermes_cli, tools, agent, run_agent, plugins, cli,
cron, tui_gateway, honcho/openviking, root-level):

- DELETE: source-reading tests (read_text/getsource on prod files),
  change-detector tests (exact catalog counts, model-name snapshots,
  config version literals), mock-echo tests (assert a mock returns what
  it was told), assertion-free/trivial tests, near-duplicate
  parametrizations (boundaries + one representative kept), async/sync
  twin duplicates, cosmetic within-file variations.
- KEEP (mandatory): security/redaction/approval guards, message-role
  alternation invariants, prompt-caching/deterministic-call-id
  invariants, issue-number regression tests (deduped), E2E tests.
- 6 test files deleted outright (script-style/no-assert or fully
  redundant); conftest.py, fakes/, fixtures/ untouched.
- tests/acp/conftest.py added: autouse fixture stubs the live
  models.dev/GitHub/Copilot/Anthropic inventory fetches that ACP server
  tests performed on every session create — test_server.py 147s → 3.4s,
  and the tests are now genuinely hermetic.
- Sleep-based slowness shrunk where safe (codex_ttfb_watchdog,
  compression_concurrent_fork, etc.); no wall-clock assertion tightened.

Verification: full hermetic suite via scripts/run_tests.sh —
2439 files, 31,130 tests passed, 0 failed, 0 flaky retries, 315s wall
(baseline: 583s wall, 13,564s subprocess CPU).
2026-07-29 13:10:23 -07:00

39 lines
1.3 KiB
Python

"""Regression: the ZIP-update directory replace must never leave a half-deleted tree.
Issue #49145: on Windows the ZIP-update path did ``rmtree(dst); copytree(...)``.
A copy that failed partway (file locks / flaky I/O — the very conditions the ZIP
path exists to work around) left the directory deleted with nothing copied back,
which broke ``hermes --tui`` because ``ui-tui/`` had vanished.
``_atomic_replace_dir`` stages the new copy first and only swaps it in on full
success, so a mid-copy failure leaves the original directory intact.
"""
from __future__ import annotations
import shutil
from pathlib import Path
import pytest
from hermes_cli.main import _atomic_replace_dir
def test_atomic_replace_swaps_content_on_success(tmp_path: Path) -> None:
src = tmp_path / "src" / "ui-tui"
src.mkdir(parents=True)
(src / "new.txt").write_text("NEW")
dst = tmp_path / "install" / "ui-tui"
dst.mkdir(parents=True)
(dst / "old.txt").write_text("OLD")
_atomic_replace_dir(str(src), str(dst))
assert (dst / "new.txt").read_text() == "NEW"
assert not (dst / "old.txt").exists()
# No staging/backup siblings left behind.
assert not (dst.parent / "ui-tui.hermes-update-staging").exists()
assert not (dst.parent / "ui-tui.hermes-update-old").exists()