"""Tests für Flask-App-Factory."""

import pytest as pt
from flask import Flask

from src.app import create_app


class TestCreateApp:
    """Tests für create_app."""

    def test_create_app_gibt_flask_app_zurueck(self) -> None:
        """create_app() gibt Flask-App zurück."""
        app = create_app()
        assert isinstance(app, Flask)

    def test_health_endpoint_ergibt_ok(self) -> None:
        """GET /health → 200, JSON mit 'status': 'ok'."""
        app = create_app()

        with app.test_client() as client:
            response = client.get("/health")
            assert response.status_code == 200
            data = response.get_json()
            assert data["status"] == "ok"

    def test_health_endpoint_queue_size_ist_integer(self) -> None:
        """GET /health → queue_size ist Integer."""
        app = create_app()

        with app.test_client() as client:
            response = client.get("/health")
            data = response.get_json()
            assert isinstance(data["queue_size"], int)