feat(backend): tighten CLM05 validation for CO Medicaid (CLM05-1 POS, CLM05-2 qualifier)

backend/tests/test_validator.py

@@ -150,3 +150,46 @@ def test_r100_payer_id_warning_only():
     report = validate(claim, cfg)
     assert any(i.rule == "R100_payer_id_matches" and i.severity == "warning" for i in report.warnings)
     assert report.passed is True
+
+
+def test_r032_passes_when_qualifier_b():
+    cfg = PayerConfig.co_medicaid()
+    claim = _build_claim()
+    claim.claim.facility_code_qualifier = "B"
+    report = validate(claim, cfg)
+    assert not any(i.rule == "R032_clm05_2_facility_qualifier" for i in report.errors + report.warnings)
+
+
+def test_r032_errors_when_qualifier_unknown():
+    cfg = PayerConfig.co_medicaid()
+    claim = _build_claim()
+    claim.claim.facility_code_qualifier = "X"
+    report = validate(claim, cfg)
+    assert any(i.rule == "R032_clm05_2_facility_qualifier" and i.severity == "error" for i in report.errors)
+    assert report.passed is False
+
+
+def test_r032_skipped_when_qualifier_none():
+    cfg = PayerConfig.co_medicaid()
+    claim = _build_claim()
+    # Default _build_claim leaves facility_code_qualifier unset (None).
+    assert claim.claim.facility_code_qualifier is None
+    report = validate(claim, cfg)
+    assert not any(i.rule == "R032_clm05_2_facility_qualifier" for i in report.errors + report.warnings)
+
+
+def test_r033_passes_with_valid_pos_code():
+    cfg = PayerConfig.co_medicaid()
+    claim = _build_claim()
+    claim.claim.place_of_service = "12"  # Office — valid CMS POS
+    report = validate(claim, cfg)
+    assert not any(i.rule == "R033_clm05_1_place_of_service_code" for i in report.errors + report.warnings)
+
+
+def test_r033_errors_with_invalid_pos_code():
+    cfg = PayerConfig.co_medicaid()
+    claim = _build_claim()
+    claim.claim.place_of_service = "999"  # not a valid CMS POS code
+    report = validate(claim, cfg)
+    assert any(i.rule == "R033_clm05_1_place_of_service_code" and i.severity == "error" for i in report.errors)
+    assert report.passed is False