`scripts/run_tests.sh tests/<dir>/` is how a change gets its regression
coverage run, so a test filed under the wrong directory is a test nobody
runs when that code changes. Two kinds of drift had accumulated.
Parallel directories for one source package, folded into the mirror:
tests/acp -> tests/acp_adapter (its __init__/conftest move with it)
tests/cli -> tests/hermes_cli (prompt_toolkit fixture merged into
hermes_cli/conftest.py)
tests/run_agent -> tests/agent (backoff fixture becomes
agent/conftest.py)
tests/relay -> tests/gateway/relay
tests/state -> tests/hermes_state
246 loose files at tests/ root, routed by the package they import/patch:
hermes_cli, hermes_state, agent, gateway, tools, plugins, tui_gateway, cron.
Installer and desktop-update script tests go to tests/scripts/{install,
desktop_update}/. 43 tests of root-level modules (batch_runner, utils,
hermes_constants, packaging) stay at the root.
Filenames drop their issue numbers (95 files: test_89315_x.py -> test_x.py);
the number stays in the module docstring where it has context.
Collisions: test_cli_skin_integration.py existed in both tests/ and tests/cli
with different subsets — merged into one (10 tests, all kept);
run_agent/test_pre_compress_memory_context.py -> agent/..._handoff.py;
tests/test_account_usage.py -> agent/test_account_usage_fetch.py;
tests/test_web_server.py -> hermes_cli/test_web_server_ws_ping.py.
Deleted: test_minisweagent_path.py (empty since PR #2804),
test_model_picker_scroll.py (tested a private copy of the logic, imported
nothing), test_process_loop_event_loop_warning.py (asserted asyncio behaviour,
imported nothing from Hermes).
Repo-root path arithmetic (Path(__file__).parents[N], dirname chains) is
bumped for the 202 files that changed depth and verified by evaluating every
such expression against the new location. classify_changes' desktop-updater
lane prefix, tests-os.yml's ignore glob and every in-tree path comment follow
the moves. tests/test_tests_tree_layout.py keeps the tree from drifting back.
CI git consolidates during incremental pack creation differently per
build (4 packs from 6 attempts on ubuntu-latest, 6 locally, 3 on the
previous run) — even pack-objects counts drift with auto-maintenance.
The fixture now only guarantees strictly-more-packs-than-threshold and
the test asserts consolidation strictly decreases the count.
Incremental 'git repack' consolidates small packs on newer git builds
(CI produced 3 packs from 6 commits), making the sprawl fixture count
nondeterministic. pack-objects with an explicit sha per commit creates
exactly one pack each on every git version.
Two gaps from the Aug 2026 'hermes -w timed out after 30s' incident:
1. Atomic failure cleanup: a timed-out/failed `git worktree add` left a
partially-materialized directory plus a LOCKED admin entry under
.git/worktrees/ (lock pid = the live hermes process that timed out),
which the startup pruner's dead-pid unlock never reaps — retries of
the same name fail forever. _cleanup_failed_worktree_add sweeps dir,
admin entry, and orphaned branch on every failure path (timeout,
nonzero exit, remote-base retry).
2. Pack maintenance: nothing consolidated the object store; on a
multi-agent box packs sprawl (39 packs / 638MB at the incident) and
every object lookup scans all pack indexes until worktree creation
blows its timeout. _maintain_pack_health repacks (niced, background,
fail-soft) when *.pack count reaches 15, wired into the existing
startup maintenance thread on both the CLI (-w) and TUI paths.
gc --auto doesn't cover this: its threshold is 50 packs.
Both sabotage-verified; full repack on the incident box: 39 packs ->
2, 638MB -> 287MB, worktree add 30s-timeout -> 0.5s.
ouyangbo
teknium1