import subprocess
import unittest
from pathlib import Path

ROOT = Path(__file__).resolve().parent.parent


class Launcher(unittest.TestCase):
    def test_syntax(self):
        self.assertEqual(subprocess.run(["bash", "-n", str(ROOT / "deck-it")]).returncode, 0)

    def test_env_prints_keys(self):
        out = subprocess.run(["bash", str(ROOT / "deck-it"), "env"],
                             capture_output=True, text=True, cwd=ROOT).stdout
        for key in ("MON=", "PORT=", "VNC_PORT="):
            self.assertIn(key, out)


if __name__ == "__main__":
    unittest.main()