tests: fix health

Author: giancarloromeo

services/notifications/tests/unit/test_api_rest__health.py

@@ -7,15 +7,12 @@
 from fastapi.testclient import TestClient
 from models_library.api_schemas__common.health import HealthCheckGet
 from models_library.errors import (
-    POSRGRES_DATABASE_UNHEALTHY_MSG,
     RABBITMQ_CLIENT_UNHEALTHY_MSG,
 )
-from models_library.healthchecks import IsNonResponsive
 from pytest_mock import MockerFixture
 from simcore_service_notifications.api.rest._health import HealthCheckError
 
 pytest_simcore_core_services_selection = [
-    "postgres",
     "rabbit",
 ]
 
@@ -26,23 +23,6 @@ def test_health_ok(test_client: TestClient):
     assert HealthCheckGet.model_validate(response.json())
 
 
-@pytest.fixture
-def mock_postgres_liveness(mocker: MockerFixture, test_client: TestClient) -> None:
-    mocker.patch.object(
-        test_client.app.state.postgres_liveness,
-        "_liveness_result",
-        new=IsNonResponsive(reason="fake"),
-    )
-
-
-def test_health_postgres_unhealthy(
-    mock_postgres_liveness: None, test_client: TestClient
-):
-    with pytest.raises(HealthCheckError) as exc:
-        test_client.get("/")
-    assert POSRGRES_DATABASE_UNHEALTHY_MSG in f"{exc.value}"
-
-
 @pytest.fixture
 def mock_rabbit_healthy(mocker: MockerFixture, test_client: TestClient) -> None:
     mocker.patch.object(