Ajustes conforme relatorio de testes 2026-08-27

tests/migration/test_original_contestation_validation.py

@@ -522,3 +522,38 @@ def test_validate_contestation_items_prefere_evidencia_vas_quando_item_aparece_e
     assert validation_log[-1]["status"] == "aprovado"
     assert validation_log[-1]["secao_vas"] is True
     assert validation_log[-1]["tipo_fatura"] == "servicos_contratados_de_parceiros"
+
+
+def test_parse_amount_preserva_decimal_json_e_ptbr() -> None:
+    assert contestation_validation._parse_amount("19.99") == contestation_validation.Decimal("19.99")
+    assert contestation_validation._parse_amount("R$ 19,99") == contestation_validation.Decimal("19.99")
+    assert contestation_validation._parse_amount("1.999,99") == contestation_validation.Decimal("1999.99")
+    assert contestation_validation._parse_amount("1,999.99") == contestation_validation.Decimal("1999.99")
+
+
+def test_validate_contestation_items_resolve_homonimo_por_valor_exato() -> None:
+    items = [{"item_name": "Tamboro Mensal", "claimed_amount": "19.99", "validated_amount": "19.99"}]
+    _, validation_log, error = validate_contestation_items(
+        items,
+        _vas_invoice(
+            {"desc": "Tamboro Mensal", "valor": "14.99"},
+            {"desc": "Tamboro Mensal", "valor": "19.99"},
+        ),
+    )
+    assert error is None
+    assert validation_log[-1]["status"] == "aprovado"
+    assert validation_log[-1]["valor_item_fatura"] == "19.99"
+
+
+def test_validate_contestation_items_bloqueia_valor_acima_de_todos_homonimos() -> None:
+    items = [{"item_name": "Tamboro Mensal", "claimed_amount": "29.98", "validated_amount": "29.98"}]
+    _, validation_log, error = validate_contestation_items(
+        items,
+        _vas_invoice(
+            {"desc": "Tamboro Mensal", "valor": "14.99"},
+            {"desc": "Tamboro Mensal", "valor": "19.99"},
+        ),
+    )
+    assert error == "Valor de ajuste do item 'Tamboro Mensal' excede o valor cobrado na fatura."
+    assert validation_log[-1]["erro"] == "valor_ajuste_maior_que_item"
+    assert validation_log[-1]["valor_item_fatura"] == "19.99"