Files
atm/tests/test_handle_tick.py
Claude Agent e7369ca632 feat(run): arm + prime alerts, mid-session catchup, late-start guard
Notify on IDLE→ARMED and ARMED→PRIMED so the user gets staged warnings
before FIRE. If atm run starts mid-cycle on dark_green/dark_red, synth
a catchup arm so the prime alert still fires (audit tagged catchup:true).
If it starts on light_green/light_red, emit one late_start warn and skip
the FSM feed — FIRE already passed.

Extracted _handle_tick() as a pure helper (takes fsm + duck-typed
notifier/audit Protocols) so the dispatch is unit-testable without
mocking FanoutNotifier. 9 new tests cover arm, prime, refresh silence,
catchup synth-arm (+ audit), and late-start on both directions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-16 14:30:01 +00:00

221 lines
7.4 KiB
Python

"""Unit tests for atm.main._handle_tick.
Covers the six cases from the arm+prime notification plan:
1. fresh BUY arm (turquoise)
2. fresh SELL arm (yellow)
3. BUY prime (turquoise → dark_green)
4. silent refresh (turquoise → turquoise)
5. catchup synth-arm from dark_green + prime alert, audit tagged catchup:true
6. late-start guard (light_green from IDLE with first_accepted=True)
"""
from __future__ import annotations
from atm.main import _handle_tick
from atm.notifier import Alert
from atm.state_machine import State, StateMachine
class FakeNotifier:
"""Captures alerts instead of fanning out. send() is synchronous."""
def __init__(self) -> None:
self.alerts: list[Alert] = []
def send(self, alert: Alert) -> None:
self.alerts.append(alert)
class FakeAudit:
"""Captures audit events in-memory."""
def __init__(self) -> None:
self.events: list[dict] = []
def log(self, event: dict) -> None:
self.events.append(event)
# ---------------------------------------------------------------------------
# 1. fresh BUY arm
# ---------------------------------------------------------------------------
def test_handle_tick_arm_buy():
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
tr = _handle_tick(fsm, "turquoise", 1.0, notif, audit, first_accepted=False)
assert tr is not None
assert tr.next == State.ARMED_BUY
assert tr.reason == "arm"
assert len(notif.alerts) == 1
assert notif.alerts[0].kind == "arm"
assert notif.alerts[0].direction == "BUY"
assert "turquoise" in notif.alerts[0].title
# ---------------------------------------------------------------------------
# 2. fresh SELL arm
# ---------------------------------------------------------------------------
def test_handle_tick_arm_sell():
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
tr = _handle_tick(fsm, "yellow", 1.0, notif, audit, first_accepted=False)
assert tr is not None
assert tr.next == State.ARMED_SELL
assert len(notif.alerts) == 1
assert notif.alerts[0].kind == "arm"
assert notif.alerts[0].direction == "SELL"
assert "yellow" in notif.alerts[0].title
# ---------------------------------------------------------------------------
# 3. BUY prime — turquoise then dark_green
# ---------------------------------------------------------------------------
def test_handle_tick_prime_buy():
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
_handle_tick(fsm, "turquoise", 1.0, notif, audit, first_accepted=False)
tr2 = _handle_tick(fsm, "dark_green", 2.0, notif, audit, first_accepted=False)
assert tr2 is not None
assert tr2.next == State.PRIMED_BUY
assert len(notif.alerts) == 2
assert notif.alerts[0].kind == "arm"
assert notif.alerts[1].kind == "prime"
assert notif.alerts[1].direction == "BUY"
# Non-catchup prime alert must not mention catchup
assert "catchup" not in notif.alerts[1].title.lower()
# ---------------------------------------------------------------------------
# 4. refresh is silent — second turquoise in ARMED_BUY emits no alert
# ---------------------------------------------------------------------------
def test_handle_tick_refresh_no_alert():
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
_handle_tick(fsm, "turquoise", 1.0, notif, audit, first_accepted=False)
tr2 = _handle_tick(fsm, "turquoise", 2.0, notif, audit, first_accepted=False)
assert tr2 is not None
assert tr2.reason == "refresh"
assert len(notif.alerts) == 1 # only the first (real) arm
# ---------------------------------------------------------------------------
# 5. catchup synth-arm from dark_green with first_accepted=True
# ---------------------------------------------------------------------------
def test_handle_tick_catchup_dark_green():
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
tr = _handle_tick(fsm, "dark_green", 1.0, notif, audit, first_accepted=True)
# Synth arm + real prime feed → FSM lands in PRIMED_BUY
assert tr is not None
assert tr.next == State.PRIMED_BUY
assert tr.reason == "prime"
# Two alerts: synth-arm (catchup-tagged) + prime
assert len(notif.alerts) == 2
assert notif.alerts[0].kind == "arm"
assert notif.alerts[0].direction == "BUY"
assert "catchup" in notif.alerts[0].title.lower() or "catchup" in notif.alerts[0].body.lower()
assert notif.alerts[1].kind == "prime"
assert notif.alerts[1].direction == "BUY"
assert "catchup" in notif.alerts[1].title.lower() or "catchup" in notif.alerts[1].body.lower()
# Audit: both tick entries tagged catchup:true
catchup_events = [e for e in audit.events if e.get("catchup")]
assert len(catchup_events) == 2
synth = next(e for e in catchup_events if e.get("synthesized_from") == "dark_green")
assert synth["color"] == "turquoise"
assert synth["reason"] == "arm"
def test_handle_tick_catchup_dark_red():
"""Mirror of dark_green — SELL side."""
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
tr = _handle_tick(fsm, "dark_red", 1.0, notif, audit, first_accepted=True)
assert tr is not None
assert tr.next == State.PRIMED_SELL
assert len(notif.alerts) == 2
assert notif.alerts[0].direction == "SELL"
assert notif.alerts[1].direction == "SELL"
# ---------------------------------------------------------------------------
# 6. late-start: light_green from IDLE with first_accepted=True
# ---------------------------------------------------------------------------
def test_handle_tick_late_start():
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
tr = _handle_tick(fsm, "light_green", 1.0, notif, audit, first_accepted=True)
# FSM untouched
assert tr is None
assert fsm.state == State.IDLE
# Exactly one late_start alert
assert len(notif.alerts) == 1
assert notif.alerts[0].kind == "late_start"
assert notif.alerts[0].direction == "BUY"
# Audit has a late_start event
assert any(e.get("event") == "late_start" for e in audit.events)
def test_handle_tick_late_start_sell():
"""Mirror of light_green — light_red triggers SELL late_start."""
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
tr = _handle_tick(fsm, "light_red", 1.0, notif, audit, first_accepted=True)
assert tr is None
assert fsm.state == State.IDLE
assert len(notif.alerts) == 1
assert notif.alerts[0].kind == "late_start"
assert notif.alerts[0].direction == "SELL"
# ---------------------------------------------------------------------------
# Extra guard: first_accepted=True with turquoise is a normal arm (decision 3A)
# ---------------------------------------------------------------------------
def test_handle_tick_first_turquoise_no_catchup_label():
fsm = StateMachine(lockout_s=60)
notif = FakeNotifier()
audit = FakeAudit()
tr = _handle_tick(fsm, "turquoise", 1.0, notif, audit, first_accepted=True)
assert tr is not None
assert tr.next == State.ARMED_BUY
assert len(notif.alerts) == 1
assert notif.alerts[0].kind == "arm"
# Decision 3A: cannot distinguish fresh arm from catchup-at-arm-phase
assert "catchup" not in notif.alerts[0].title.lower()
assert "catchup" not in notif.alerts[0].body.lower()