Build independent base gameplay and source-bound native verification

tests/test_environment_restart_runner.py

@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+"""Negative runner checks stop before any native process/audio initialization."""
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+import unittest
+
+ROOT = Path(__file__).resolve().parents[1]
+
+class EnvironmentRestartRunnerTests(unittest.TestCase):
+    def invoke(self, profile, *extra):
+        return subprocess.run([sys.executable, str(ROOT/'tools/headless_workbench.py'),
+            '--compat', str(profile/'missing-prefix'), '--profile', str(profile),
+            '--smoke', 'environment-restart', '--project', 'core', '--rounds', '2',
+            *extra], text=True, capture_output=True)
+
+    def test_requires_two_core_rounds(self):
+        with tempfile.TemporaryDirectory() as directory:
+            for extra in [('--rounds','1'), ('--rounds','3'), ('--project','chat')]:
+                with self.subTest(extra=extra):
+                    result = self.invoke(Path(directory), *extra)
+                    self.assertNotEqual(result.returncode, 0)
+                    self.assertIn('requires --project core --rounds 2', result.stderr)
+
+    def test_every_existing_fixture_file_is_refused_and_preserved(self):
+        for name in ['erri-environment-restart.json', 'erri-environment-restart.json.bak',
+                     'erri-environment-restart.json.tmp', 'erri-environment-restart-round.json']:
+            with self.subTest(name=name), tempfile.TemporaryDirectory() as directory:
+                profile = Path(directory)
+                path = profile/name
+                path.write_text('prior evidence')
+                result = self.invoke(profile)
+                self.assertNotEqual(result.returncode, 0)
+                self.assertIn('fixture paths must not preexist', result.stderr)
+                self.assertEqual(path.read_text(), 'prior evidence')
+
+    def test_broken_fixture_symlink_is_refused(self):
+        with tempfile.TemporaryDirectory() as directory:
+            profile = Path(directory)
+            (profile/'erri-environment-restart.json').symlink_to(profile/'missing-target')
+            result = self.invoke(profile)
+            self.assertIn('fixture paths must not preexist', result.stderr)
+            self.assertTrue((profile/'erri-environment-restart.json').is_symlink())
+
+    def test_empty_fixture_reaches_existing_prefix_guard_without_side_effects(self):
+        with tempfile.TemporaryDirectory() as directory:
+            profile = Path(directory)
+            result = self.invoke(profile)
+            self.assertNotEqual(result.returncode, 0)
+            self.assertIn('must be a disposable cloned prefix', result.stderr)
+            self.assertEqual(list(profile.iterdir()), [])
+
+    def test_existing_environment_outcome_does_not_acquire_restart_path_policy(self):
+        with tempfile.TemporaryDirectory() as directory:
+            profile = Path(directory)
+            (profile/'erri-environment-restart.json').write_text('prior evidence')
+            result = self.invoke(profile, '--smoke', 'environment', '--rounds', '1')
+            self.assertIn('must be a disposable cloned prefix', result.stderr)
+            self.assertNotIn('fixture paths must not preexist', result.stderr)
+
+if __name__ == '__main__': unittest.main()