reflex/tests/test_node_version.py

"""Test for latest node version being able to run reflex."""

from __future__ import annotations

from collections.abc import Generator
from typing import Any

import httpx
import pytest
from playwright.sync_api import Page, expect

from reflex.testing import AppHarness


def TestNodeVersionApp():
    """A test app for node latest version."""
    import reflex as rx
    from reflex.utils.prerequisites import get_node_version

    class TestNodeVersionConfig(rx.Config):
        pass

    class TestNodeVersionState(rx.State):
        @rx.var
        def node_version(self) -> str:
            return str(get_node_version())

    app = rx.App()

    @app.add_page
    def index():
        return rx.heading("Node Version check v", TestNodeVersionState.node_version)


@pytest.fixture()
def node_version_app(tmp_path) -> Generator[AppHarness, Any, None]:
    """Fixture to start TestNodeVersionApp app at tmp_path via AppHarness.

    Args:
        tmp_path: pytest tmp_path fixture

    Yields:
        running AppHarness instance
    """
    with AppHarness.create(
        root=tmp_path,
        app_source=TestNodeVersionApp,
    ) as harness:
        yield harness


def test_node_version(node_version_app: AppHarness, page: Page):
    """Test for latest node version being able to run reflex.

    Args:
        node_version_app: running AppHarness instance
        page: playwright page instance
    """

    def get_latest_node_version():
        response = httpx.get("https://nodejs.org/dist/index.json")
        versions = response.json()

        # Assuming the first entry in the API response is the most recent version
        if versions:
            latest_version = versions[0]["version"]
            return latest_version
        return None

    assert node_version_app.frontend_url is not None
    page.goto(node_version_app.frontend_url)
    expect(page.get_by_role("heading")).to_have_text(
        f"Node Version check {get_latest_node_version()}"
    )