Add wildlife threat classification with size heuristics

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/unit/test_wildlife.py

@@ -0,0 +1,50 @@
+"""Tests for wildlife threat classification."""
+
+from vigilar.config import WildlifeConfig, WildlifeThreatMap, WildlifeSizeHeuristics
+from vigilar.detection.person import Detection
+from vigilar.detection.wildlife import classify_wildlife_threat
+
+
+def _make_config(**kwargs):
+    return WildlifeConfig(**kwargs)
+
+
+class TestWildlifeThreatClassification:
+    def test_bear_is_predator(self):
+        cfg = _make_config()
+        d = Detection(class_name="bear", class_id=21, confidence=0.9, bbox=(100, 100, 200, 300))
+        level, species = classify_wildlife_threat(d, cfg, frame_area=1920 * 1080)
+        assert level == "PREDATOR"
+        assert species == "bear"
+
+    def test_bird_is_passive(self):
+        cfg = _make_config()
+        d = Detection(class_name="bird", class_id=14, confidence=0.8, bbox=(10, 10, 30, 20))
+        level, species = classify_wildlife_threat(d, cfg, frame_area=1920 * 1080)
+        assert level == "PASSIVE"
+        assert species == "bird"
+
+    def test_unknown_small_is_nuisance(self):
+        cfg = _make_config()
+        d = Detection(class_name="unknown", class_id=99, confidence=0.7, bbox=(100, 100, 30, 30))
+        level, species = classify_wildlife_threat(d, cfg, frame_area=1920 * 1080)
+        assert level == "NUISANCE"
+        assert species == "unknown"
+
+    def test_unknown_medium_is_predator(self):
+        cfg = _make_config()
+        d = Detection(class_name="unknown", class_id=99, confidence=0.7, bbox=(100, 100, 300, 300))
+        level, species = classify_wildlife_threat(d, cfg, frame_area=1920 * 1080)
+        assert level == "PREDATOR"
+
+    def test_unknown_large_is_passive(self):
+        cfg = _make_config()
+        d = Detection(class_name="unknown", class_id=99, confidence=0.7, bbox=(100, 100, 600, 500))
+        level, species = classify_wildlife_threat(d, cfg, frame_area=1920 * 1080)
+        assert level == "PASSIVE"
+
+    def test_custom_threat_map(self):
+        cfg = _make_config(threat_map=WildlifeThreatMap(predator=["bear", "wolf"]))
+        d = Detection(class_name="wolf", class_id=99, confidence=0.85, bbox=(100, 100, 200, 200))
+        level, _ = classify_wildlife_threat(d, cfg, frame_area=1920 * 1080)
+        assert level == "PREDATOR"