"""Unit tests for GatewayService.""" import pytest from app.modules.payments.services.gateway_service import GatewayService @pytest.mark.unit @pytest.mark.payments class TestGatewayService: """Test suite for GatewayService.""" def setup_method(self): self.service = GatewayService() def test_service_instantiation(self): """Service can be instantiated.""" assert self.service is not None