Refactor CI and runtime images to two-stage builds

backend/tests/integration/test_runtime_blackbox.py

@@ -0,0 +1,55 @@
+"""Runtime black-box integration tests executed over the container network."""
+
+from __future__ import annotations
+
+import json
+import os
+import urllib.error
+import urllib.request
+
+import pytest
+
+BACKEND_BASE_URL = os.getenv("INTEGRATION_BACKEND_URL", "http://backend:8000").rstrip(
+    "/"
+)
+
+
+def _fetch(path: str) -> tuple[int, str]:
+    """Fetch an endpoint and return status code and body text."""
+    url = f"{BACKEND_BASE_URL}{path}"
+    request = urllib.request.Request(url=url, method="GET")
+    try:
+        with urllib.request.urlopen(request, timeout=5) as response:
+            body = response.read().decode("utf-8", errors="replace")
+            return response.status, body
+    except urllib.error.HTTPError as exc:
+        body = exc.read().decode("utf-8", errors="replace")
+        return exc.code, body
+
+
+@pytest.mark.integration
+def test_root_endpoint_runtime() -> None:
+    """Runtime root endpoint should return backend API message."""
+    status, body = _fetch("/")
+    assert status == 200
+    payload = json.loads(body)
+    assert payload == {"message": "Plex Playlist Backend API"}
+
+
+@pytest.mark.integration
+def test_health_endpoint_runtime() -> None:
+    """Runtime health endpoint should report healthy database connectivity."""
+    status, body = _fetch("/health")
+    assert status == 200
+    payload = json.loads(body)
+    assert payload.get("status") == "healthy"
+    assert payload.get("database") == "connected"
+
+
+@pytest.mark.integration
+def test_compatibility_endpoint_runtime() -> None:
+    """Runtime compatibility endpoint should report policy check success."""
+    status, body = _fetch("/compatibility")
+    assert status == 200
+    payload = json.loads(body)
+    assert payload.get("ok") is True