fix(parity): hermetic live-remote master reads under pytest (Closes #610)

Remediate PR #788 review F1/F2: suite-wide hermetic mode prevents git ls-remote from running in tests so feature worktrees no longer flip legacy runtime-context assertions to live_stale, and unit tests stay offline. Module flag survives patch.dict(clear=True); env override still wins. Co-Authored-By: Grok 4.5 <[email protected]>
2026-07-22 05:40:15 -05:00
parent 344dc41ce2
commit 57a52b1a99
3 changed files with 144 additions and 2 deletions
@@ -167,6 +167,35 @@ def _reset_mutation_authority(monkeypatch):
 import pytest


+@pytest.fixture(autouse=True)
+def _hermetic_live_remote_master_head():
+    """#610 / PR #788 F1/F2: keep live-remote parity reads offline in tests.
+
+    ``read_remote_master_head`` would otherwise ``git ls-remote`` whenever
+    ``GITEA_TEST_LIVE_REMOTE_HEAD`` is unset. Feature worktrees under
+    ``branches/`` always differ from live master, so legacy suites that assert
+    runtime-context ``safe_next_action`` flip to live_stale. Module-level
+    hermetic mode survives ``patch.dict(os.environ, …, clear=True)``.
+    Tests that exercise the real probe path call
+    ``master_parity_gate.set_hermetic_test_mode(False)`` and/or set
+    ``GITEA_TEST_ALLOW_LIVE_REMOTE_PROBE``.
+    """
+    try:
+        import master_parity_gate as _mpg
+
+        _mpg.set_hermetic_test_mode(True)
+    except Exception:
+        _mpg = None
+    try:
+        yield
+    finally:
+        if _mpg is not None:
+            try:
+                _mpg.set_hermetic_test_mode(False)
+            except Exception:
+                pass
+
+
@pytest.fixture(autouse=True)
 def _deterministic_workspace_remotes():
    try: