import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
try:
    from guided_installer import run_command
except ImportError:  # no tkinter on this host
    run_command = None


@unittest.skipIf(run_command is None, "tkinter unavailable")
class RunCommandTest(unittest.TestCase):
    def test_success_logs_output(self):
        out = []
        self.assertTrue(run_command([sys.executable, "-c", "print('hi')"], out.append))
        self.assertIn("hi", "".join(out))

    def test_nonzero_exit(self):
        out = []
        self.assertFalse(run_command([sys.executable, "-c", "raise SystemExit(3)"], out.append))
        self.assertIn("exited with 3", out[-1])

    def test_missing_binary(self):
        out = []
        self.assertFalse(run_command(["/nonexistent-binary-xyz"], out.append))
        self.assertTrue(out[0].startswith("Failed:"))


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