"""mattermost-lts — INSTALL overlay (Phase 1d, DG4): override + extend-by-composition.
Reuses the generic "really serving" assertion, then ADDS a recipe-specific check: mattermost's REST
liveness endpoint /api/v4/system/ping answers 200 over real HTTPS through Traefik (proves the app +
its DB-backed API are up, not just a proxy 200). Assertion-only on the shared deployment."""

import os
import sys

sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "..", "runner"))
from harness import generic, lifecycle  # noqa: E402


def test_serving_and_api(live_app, meta):
    # extend-by-composition: reuse the generic "really serving" assertion first ...
    generic.assert_serving(live_app, meta)
    # ... then the recipe-specific assertion: the mattermost REST liveness endpoint answers 200.
    status = lifecycle.http_get(live_app, "/api/v4/system/ping")
    assert status == 200, f"expected 200 from {live_app}/api/v4/system/ping, got {status}"
