feat(scoring): composite recency decay and severity weights persisted in DB [FASE-5.1]

backend/tests/test_phase5_snapshots.py

@@ -0,0 +1,102 @@
+"""Tests for Phase 5 snapshot evolution and breakdown fields."""
+
+from datetime import datetime, timedelta, timezone
+
+from app.models.coverage_snapshot import CoverageSnapshot
+from app.models.enums import TechniqueStatus
+from app.models.technique import Technique
+from app.services.snapshot_service import create_snapshot, get_coverage_evolution
+
+
+def test_create_snapshot_includes_tactic_breakdown(db, admin_user):
+    tech = Technique(
+        mitre_id="T1059",
+        name="Command and Scripting Interpreter",
+        tactic="execution",
+        status_global=TechniqueStatus.validated,
+    )
+    db.add(tech)
+    db.commit()
+
+    snap = create_snapshot(db, name="Phase5 test", user_id=admin_user.id)
+
+    assert snap.by_tactic
+    assert "execution" in snap.by_tactic
+    assert snap.by_status
+    assert snap.coverage_percentage >= 0
+    assert snap.never_tested_count >= 0
+
+
+def test_coverage_evolution_filters_by_months(db, admin_user):
+    now = datetime.now(timezone.utc)
+    old = CoverageSnapshot(
+        name="old",
+        organization_score=50.0,
+        total_techniques=10,
+        validated_count=5,
+        partial_count=1,
+        not_covered_count=1,
+        in_progress_count=1,
+        not_evaluated_count=2,
+        coverage_percentage=50.0,
+        by_tactic={"execution": {"total": 10, "validated": 5}},
+        by_status={"validated": 5},
+        stale_count=0,
+        never_tested_count=2,
+        created_by=admin_user.id,
+    )
+    old.created_at = now - timedelta(days=400)
+    recent = CoverageSnapshot(
+        name="recent",
+        organization_score=70.0,
+        total_techniques=10,
+        validated_count=7,
+        partial_count=1,
+        not_covered_count=0,
+        in_progress_count=1,
+        not_evaluated_count=1,
+        coverage_percentage=70.0,
+        by_tactic={"execution": {"total": 10, "validated": 7}},
+        by_status={"validated": 7},
+        stale_count=1,
+        never_tested_count=1,
+        created_by=admin_user.id,
+    )
+    db.add_all([old, recent])
+    db.commit()
+
+    evolution = get_coverage_evolution(db, months=6)
+    assert len(evolution) == 1
+    assert evolution[0]["org_score"] == 70.0
+    assert evolution[0]["coverage_pct"] == 70.0
+    assert evolution[0]["stale_count"] == 1
+
+
+def test_evolution_endpoint(client, db, admin_user, admin_token):
+    snap = CoverageSnapshot(
+        name="api-evolution",
+        organization_score=60.0,
+        total_techniques=5,
+        validated_count=3,
+        partial_count=0,
+        not_covered_count=0,
+        in_progress_count=0,
+        not_evaluated_count=2,
+        coverage_percentage=60.0,
+        by_tactic={},
+        by_status={"validated": 3},
+        stale_count=0,
+        never_tested_count=2,
+    )
+    db.add(snap)
+    db.commit()
+
+    response = client.get(
+        "/api/v1/snapshots/evolution?months=12",
+        headers={"Authorization": f"Bearer {admin_token}"},
+    )
+    assert response.status_code == 200
+    data = response.json()
+    assert isinstance(data, list)
+    assert len(data) >= 1
+    assert "org_score" in data[0]