feat(fusion_accounting_followup): risk_scorer service

Made-with: Cursor

fusion_accounting_followup/tests/__init__.py

@@ -1,2 +1,3 @@
 from . import test_overdue_aging
 from . import test_level_resolver
+from . import test_risk_scorer

fusion_accounting_followup/tests/test_risk_scorer.py

@@ -0,0 +1,48 @@
+from odoo.tests.common import TransactionCase
+from odoo.tests import tagged
+from odoo.addons.fusion_accounting_followup.services.risk_scorer import (
+    score_partner, PartnerRiskScore,
+)
+
+
+@tagged('post_install', '-at_install')
+class TestRiskScorer(TransactionCase):
+
+    def test_no_history_returns_low(self):
+        result = score_partner()
+        self.assertEqual(result.band, 'low')
+        self.assertLess(result.score, 30)
+
+    def test_chronic_late_pays_returns_high(self):
+        result = score_partner(
+            total_invoices=20, paid_late_count=18,
+            avg_days_late=45, longest_overdue_days=90,
+            open_overdue_amount=15000, average_invoice_amount=2000,
+        )
+        self.assertIn(result.band, ('high', 'critical'))
+        self.assertGreater(len(result.drivers), 0)
+
+    def test_one_off_overdue_returns_medium(self):
+        result = score_partner(
+            total_invoices=10, paid_late_count=1,
+            avg_days_late=20, longest_overdue_days=45,
+            open_overdue_amount=2000, average_invoice_amount=2000,
+        )
+        self.assertIn(result.band, ('low', 'medium'))
+
+    def test_score_capped_at_100(self):
+        result = score_partner(
+            total_invoices=10, paid_late_count=10,
+            avg_days_late=180, longest_overdue_days=300,
+            open_overdue_amount=999999, average_invoice_amount=1000,
+        )
+        self.assertLessEqual(result.score, 100)
+
+    def test_score_floored_at_0(self):
+        result = score_partner()
+        self.assertGreaterEqual(result.score, 0)
+
+    def test_band_thresholds(self):
+        for s, expected_band in [(10, 'low'), (40, 'medium'), (70, 'high'), (90, 'critical')]:
+            r = PartnerRiskScore(score=s, band=expected_band, drivers=[])
+            self.assertEqual(r.band, expected_band)