import subprocess
import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]


def test_source_preflight_handles_recursive_yaml_lists_without_host_packages():
    source = ROOT / 'scripts/prepare_controller_hub_release_volume.py'
    program = """
import importlib.util, sys
spec = importlib.util.spec_from_file_location('controller', sys.argv[1])
module = importlib.util.module_from_spec(spec)
spec.loader.exec_module(module)
module._preflight_source_compose(b'services: {deploy-control: {image: fixed}}\\nx-loop: &a [*a]\\n')
try:
    module._preflight_source_compose(b'services: {deploy-control: {image: fixed}}\\nx-loop: &a [*a, {env_file: /tmp/secret}]\\n')
except module.VolumeTransitionError as error:
    assert str(error) == 'controller_volume_external_source_invalid'
else:
    raise AssertionError('external source inside alias accepted')
"""
    result = subprocess.run([sys.executable, '-I', '-S', '-c', program, str(source)],
                            capture_output=True, text=True, timeout=15, check=False)
    assert result.returncode == 0, result.stderr