117 lines
4.0 KiB
Python
117 lines
4.0 KiB
Python
import pytest
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from v1.fall_state import Evidence, FallState, FallStateMachine
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CONFIG_VERSION = "cfg-test-20260721"
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def test_confirmed_event_is_emitted_once_after_persistent_evidence():
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machine = FallStateMachine(
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confirm_window_seconds=1.8,
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recovery_window_seconds=2.0,
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config_version=CONFIG_VERSION,
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)
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assert machine.update("P-0007", Evidence(True, True), now=0.0) == []
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events = machine.update("P-0007", Evidence(True, True), now=1.8)
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assert len(events) == 1
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assert events[0].track_id == "P-0007"
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assert events[0].latency_seconds == 1.8
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assert events[0].config_version == CONFIG_VERSION
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assert machine.update("P-0007", Evidence(True, True), now=2.0) == []
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assert machine.state_of("P-0007") is FallState.CONFIRMED
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def test_brief_low_posture_returns_to_normal_without_event():
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machine = FallStateMachine(
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confirm_window_seconds=1.0,
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recovery_window_seconds=2.0,
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config_version=CONFIG_VERSION,
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)
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machine.update("P-0007", Evidence(True, True), now=0.0)
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events = machine.update("P-0007", Evidence(True, False), now=0.3)
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assert events == []
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assert machine.state_of("P-0007") is FallState.NORMAL
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def test_rejected_pose_resets_suspect_and_cannot_shorten_confirmation_window():
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machine = FallStateMachine(
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confirm_window_seconds=1.0,
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recovery_window_seconds=2.0,
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config_version=CONFIG_VERSION,
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)
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machine.update("P-0007", Evidence(True, True), now=0.0)
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machine.update("P-0007", Evidence(False, False), now=0.9)
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events = machine.update("P-0007", Evidence(True, True), now=1.1)
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assert events == []
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assert machine.state_of("P-0007") is FallState.SUSPECT
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def test_recovery_must_persist_before_new_event_is_allowed():
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machine = FallStateMachine(
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confirm_window_seconds=1.0,
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recovery_window_seconds=2.0,
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config_version=CONFIG_VERSION,
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)
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machine.update("P-0007", Evidence(True, True), now=0.0)
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first_event = machine.update("P-0007", Evidence(True, True), now=1.0)
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assert len(first_event) == 1
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machine.update("P-0007", Evidence(True, False, True), now=1.1)
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machine.update("P-0007", Evidence(True, False, True), now=3.1)
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assert machine.state_of("P-0007") is FallState.NORMAL
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machine.update("P-0007", Evidence(True, True), now=4.0)
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second_event = machine.update("P-0007", Evidence(True, True), now=5.0)
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assert len(second_event) == 1
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assert first_event[0].event_id != second_event[0].event_id
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def test_confirmation_window_must_remain_within_customer_target():
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with pytest.raises(ValueError, match="between 1 and 3"):
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FallStateMachine(
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confirm_window_seconds=0.9,
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recovery_window_seconds=2.0,
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config_version=CONFIG_VERSION,
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)
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def test_each_track_has_an_independent_confirmation_window():
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machine = FallStateMachine(
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confirm_window_seconds=1.0,
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recovery_window_seconds=2.0,
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config_version=CONFIG_VERSION,
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)
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machine.update("P-0001", Evidence(True, True), now=0.0)
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machine.update("P-0002", Evidence(True, True), now=0.6)
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first_events = machine.update("P-0001", Evidence(True, True), now=1.0)
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second_events = machine.update("P-0002", Evidence(True, True), now=1.6)
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assert first_events[0].track_id == "P-0001"
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assert second_events[0].track_id == "P-0002"
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assert first_events[0].event_id != second_events[0].event_id
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def test_cooldown_delays_recovery_after_confirmation():
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machine = FallStateMachine(
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confirm_window_seconds=1.0,
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recovery_window_seconds=2.0,
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config_version=CONFIG_VERSION,
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cooldown_seconds=3.0,
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)
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machine.update("P-0007", Evidence(True, True), now=0.0)
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machine.update("P-0007", Evidence(True, True), now=1.0)
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machine.update("P-0007", Evidence(True, False, True), now=1.1)
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assert machine.state_of("P-0007") is FallState.CONFIRMED
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machine.update("P-0007", Evidence(True, False, True), now=4.0)
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assert machine.state_of("P-0007") is FallState.RECOVERING
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