Two modules still ran the checkout's run_loop.sh - which sources lib.sh
before it parses an option - with the process environment and no root of
their own: test_o2_race_free_lock's test_o2_12 (review claude; it was in the
sweep's list and missed in 8b47cc7) and test_o1_rebuttal's
test_v3_rebut_option_parsing_and_budget, whose calls pass no env (review
grok; outside the env-copy grep). Both now use own_workspace_root, and W1
runs one node of each: at 8b47cc7 W1 fails with the copy's .mam/shim/herdr.
A last pass over the test files that run lib.sh, run_loop.sh, the wrapper or a
skill script: every one is marked, uses mam_sandbox or pins WORKSPACE_ROOT,
or does not source lib.sh (b7 diff_collect, deploy, issue42, issue45 config,
issue5_phase0, local_mqtt).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HCGpJXhSZasJLU38ksDghe
d198dd5 fixed one helper; the same defect was in eleven more modules
(reviews grok and codex R1/R2): their shells inherited the process
environment, so each `source lib.sh` rewrote <WORKSPACE_ROOT>/.mam/shim/herdr
- the checkout's own when the variable is unset or names this checkout (which
pytest_configure keeps), another workspace's under --noconftest.
- conftest: own_workspace_root, an opt-in fixture setting WORKSPACE_ROOT to
<tmp_path>/.mam-test-state/workspace. Not autouse: runner.py and
mqtt_common read WORKSPACE_ROOT in-process, and some tests unset it on
purpose. mam_sandbox and explicit envs run later and still win.
- pytestmark usefixtures("own_workspace_root") in test_version_consistency,
test_b19_headless_reconcile_fixes, test_b8_send_keys_verification,
test_issue6_fail_closed, test_loop_cli, test_issue5_phase3_loop,
test_issue5_phase4_runtime, test_o3_scoped_guard, test_issue25_plan_reuse,
test_orc_onboard (their shells inherit os.environ, many with no env at all).
- test_orc_onboard (R2): SCRUBBED_ENV is taken at import and no longer
carries WORKSPACE_ROOT; every call builds _scrubbed_env(root) with the root
of the call (ws / cwd / mam_sandbox, else this test's).
- test_workspace_scope (unittest) and test_issue21_worktree_prereqs._mutate
pin the root they already create.
Tests (test_issue17_workspace_root_isolation.py): W1 copies the checkout and
runs one test of each of those modules there with WORKSPACE_ROOT naming the
copy - the copy gets no .mam; W2 imports test_orc_onboard under a sentinel
root, then calls it under another - the sentinel stays empty. At d198dd5 both
fail (the copy gets .mam/shim/herdr; the sentinel gets it).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HCGpJXhSZasJLU38ksDghe
GodopuandClaude Opus 5.5