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c4706d3c92
Adds meshai.notifications.evac_phase.detect_phase, wired into the IPAWS formatter/adapter, to classify READY/SET/GO evacuation phases from real FEMA IPAWS alert headline/CMAMtext strings. Includes explicit false-positive guards since a wrong GO detection would broadcast an evacuation order that was never issued.
76 lines
2.9 KiB
Python
76 lines
2.9 KiB
Python
"""Tests for meshai.notifications.evac_phase.detect_phase.
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Cases are drawn from REAL FEMA IPAWS alert headline/CMAMtext/description
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strings (see tests/fixtures/ipaws/) plus explicit false-positive guards, since
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a wrong GO detection would broadcast an evacuation order that was never
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issued.
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"""
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from __future__ import annotations
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import pytest
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from meshai.notifications.evac_phase import detect_phase
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# ============================================================
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# real strings -> expected phase
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# ============================================================
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@pytest.mark.parametrize("text, expected", [
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("LEVEL 1 READY - Evacuation Status", "READY"),
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("Level 2 Set Alert", "SET"),
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("LEVEL I SET Alert", "SET"), # word beats numeral; err upward
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("Level 3 - Go Now", "GO"),
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("Level 3- Go Now", "GO"),
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("Ohio Gulch GO Evacuation Status", "GO"),
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("Indian Creek Set to GO.", "GO"), # highest wins, NOT SET
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("Immediate Evacuation", "GO"),
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("Prepare to Evacuate", "SET"),
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("BRUSH FIRE", None),
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("Owyhee County Closure Area", None),
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("Endangered Missing Person Alert", None),
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(
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"Jackson County Sheriff's Office- Level 3 GO NOW evacuation notice "
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"UPGRADED for JAC-126",
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"GO",
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),
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])
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def test_detect_phase_real_strings(text, expected):
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assert detect_phase(text) == expected
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# ============================================================
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# false-positive guards — bare lowercase / narrative usage must NOT match
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# ============================================================
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@pytest.mark.parametrize("text", [
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"residents should go to the Blaine County Fairgrounds",
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"crews are set to arrive by 0600",
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"evacuate via Go Creek Road",
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])
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def test_detect_phase_false_positive_guards(text):
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assert detect_phase(text) is None
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# ============================================================
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# precedence + multi-arg scanning
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# ============================================================
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def test_precedence_highest_always_wins_regardless_of_arg_order():
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# SET language in the first text, GO language in the second — GO must win.
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assert detect_phase("Prepare to Evacuate", "Level 3 - Go Now") == "GO"
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# Same phrases, arguments reversed — still GO (order-independent).
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assert detect_phase("Level 3 - Go Now", "Prepare to Evacuate") == "GO"
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def test_detect_phase_scans_all_texts_together():
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# No single text alone carries a phase; combined they do (SET here,
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# since "LEVEL 2" is an explicit SET phrase and no GO phrase is present).
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assert detect_phase("Jackson County Sheriff's Office", "Level 2 Set Alert") == "SET"
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def test_detect_phase_none_texts_and_empty_input_are_safe():
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assert detect_phase(None, None) is None
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assert detect_phase() is None
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assert detect_phase("") is None
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assert detect_phase(None, "BRUSH FIRE", None) is None
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