"""Pure temporary-file supervisor bookkeeping tests, no actual child launch."""
from pathlib import Path
import tempfile
from types import SimpleNamespace
import unittest
from unittest.mock import patch
import run_normal as R

class SupervisorTests(unittest.TestCase):
    def test_launch_is_exclusive_not_completion(self):
        with tempfile.TemporaryDirectory() as temp,patch.object(R,'CONTROL',Path(temp)),patch.object(R,'authority',return_value={}):
            with patch.object(R.subprocess,'Popen',return_value=SimpleNamespace(pid=123)) as spawn:
                record=R.launch('a'*64)
                self.assertEqual(spawn.call_count,1)
                self.assertTrue(spawn.call_args.kwargs['start_new_session'])
                self.assertFalse(record['final_exit_observed'])
                self.assertFalse((Path(temp)/'exit.json').exists())
                with self.assertRaises(ValueError):R.launch('a'*64)
                self.assertEqual(spawn.call_count,1)

    def test_final_exit_is_parent_observed_not_learning(self):
        with tempfile.TemporaryDirectory() as temp,patch.object(R,'CONTROL',Path(temp)),patch.object(R,'authority',return_value={}):
            with patch.object(R.subprocess,'run',return_value=SimpleNamespace(returncode=0)):
                self.assertEqual(R.supervise('b'*64),0)
            record=R.read(Path(temp)/'exit.json')
            self.assertTrue(record['complete'] and record['final_exit_observed'])
            self.assertFalse(record['learning_success_claimed'])

    def test_failed_spawn_has_no_fabricated_exit(self):
        with tempfile.TemporaryDirectory() as temp,patch.object(R,'CONTROL',Path(temp)),patch.object(R,'authority',return_value={}):
            with patch.object(R.subprocess,'run',side_effect=OSError('fixture')):
                self.assertEqual(R.supervise('b'*64),1)
            record=R.read(Path(temp)/'exit.json')
            self.assertIsNone(record['exit_code'])
            self.assertFalse(record['complete'] or record['final_exit_observed'])

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