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PRD 0021 chunk 2. New tmux integration: when `\$TMUX` is set
and the operator presses Enter on a focused agent row, the
dashboard spawns / respawns the right pane with that bottle's
claude session instead of taking over the terminal via
curses.endwin.
Mechanics:
- `_in_tmux()` — true when `\$TMUX` is set.
- `_tmux_split_pane_create` — first attach: `tmux split-window
-h -P -F '#{pane_id}'` opens a right pane and prints its id
for tracking.
- `_tmux_respawn_pane` — subsequent attaches: `tmux
respawn-pane -k -t <id>` swaps the content without
re-splitting.
- `_tmux_pane_exists` — `tmux list-panes` check before
respawn so a manually-closed pane gracefully falls back to
a fresh split.
- `_attach_in_tmux` — owns the create-or-respawn state
machine, mutates `tmux_state` ({pane_id, slug}) so the
main loop tracks the right-pane occupant.
- `_attach_via_handoff` — the previous curses-endwin path,
extracted as the fallback when tmux is missing or fails.
- `_attach_to_bottle` dispatches: in tmux + state available →
`_attach_in_tmux`; otherwise → handoff.
Main loop gets `tmux_state: dict = {"pane_id": None, "slug":
None}`. Chunks 3 + 4 wire it through the new-agent flow and
the stop hook.
`FileNotFoundError`-safe `subprocess.run` calls around every
tmux invocation — a missing tmux binary cleanly falls back to
the handoff for that keypress. 478 unit tests pass (10 new
for the pure argv builders + `_claude_runtime_args`).
Tests
Plain-Python test suite using stdlib unittest. No external
dependencies. Unit tests run anywhere Python 3 is present; integration
tests need Docker and skip cleanly otherwise.
Layout
tests/
fixtures.py # JSON manifest builders (shared)
_docker.py # docker-availability skip helper (shared)
unit/
test_pipelock_classify.py
test_pipelock_allowlist.py
test_pipelock_yaml.py
test_manifest_runtime.py
integration/
test_pipelock_sidecar_smoke.py
test_dry_run_plan.py
test_orphan_cleanup.py
canaries/
test_pipelock_image.py # opt-in; see below
Classification falls out of the directory — no hand-maintained list to keep in sync.
Running
python -m unittest discover -t . -s tests/unit -v # unit only
python -m unittest discover -t . -s tests/integration -v # integration only
python -m unittest discover -t . -s tests -v # both (recursive)
python -m unittest tests.unit.test_pipelock_yaml # one file
Discovery is invoked with -t . (top-level dir = repo root) so the
claude_bottle package on sys.path resolves correctly.
What the integration tests cover
test_pipelock_sidecar_smoke.py— drivesDockerPipelockProxy.prepare.start(the production code path) against a real Docker daemon and probes the sidecar's/healthfrom an in-network curl container.
test_dry_run_plan.py—cli.py start --dry-run --format=jsonemits a structured plan that contains the resolved egress allowlist and the bottle's runtime, and creates zero Docker resources.test_orphan_cleanup.py—network_removeandPipelockProxy.stopare idempotent against missing resources, so the EXIT trap can call them unconditionally.
Canaries
tests/canaries/ holds upstream-regression checks (e.g. the pinned
pipelock digest's binary still runs). These are gated on
CLAUDE_BOTTLE_RUN_CANARIES=1 and not part of the per-push suite.
They're invoked by the scheduled canaries workflow.
CLAUDE_BOTTLE_RUN_CANARIES=1 python -m unittest discover -t . -s tests/canaries -v
What's NOT covered
claude_bottle/ssh.pyend-to-end (would need a fake SSH host inside the container).- A live SSH-through-pipelock tunnel against a real Tailscale-style IP.
- DLP false-positive measurements.
- TLS handling / cert pinning behavior.
Adding a test
- Pick the directory:
tests/unit/for a pure unit test,tests/integration/for one that needs Docker. - Filename:
test_<topic>.py. - Boilerplate:
import unittest from claude_bottle.<module> import <symbol> class TestThing(unittest.TestCase): def test_x(self): ... if __name__ == "__main__": unittest.main() - For Docker-dependent tests, decorate the class with
@skip_unless_docker()fromtests._docker.