From 7105b4cc637c02d9ed790ec682795c9f6ae3465c Mon Sep 17 00:00:00 2001
From: dayebishouji <1441423987@qq.com>
Date: Sat, 26 Sep 2026 11:45:10 +0800
Subject: [PATCH] test: keep Baseline fault injection effective on Windows

---
 .aoci/baseline.json                            | 10 +++++-----
 .../cli/index_entries_apply_atomic_test.go     | 18 ++++++++++++++----
 2 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/.aoci/baseline.json b/.aoci/baseline.json
index cacb1a93..441734e0 100644
--- a/.aoci/baseline.json
+++ b/.aoci/baseline.json
@@ -1,7 +1,7 @@
 {
   "version": 1,
   "created_at": "2026-08-07T17:44:36Z",
-  "updated_at": "2026-09-25T10:48:53Z",
+  "updated_at": "2026-09-26T03:39:41Z",
   "files": {
     ".gitattributes": {
       "role": "index",
@@ -1557,10 +1557,10 @@
     },
     "internal/cli/index_entries_apply_atomic_test.go": {
       "role": "observe",
-      "sha256": "374b9e938ae55b0a0159a843379ea390e61e113ac575141f8e6341bceac0d367",
-      "size": 16393,
-      "normalized_sha256": "374b9e938ae55b0a0159a843379ea390e61e113ac575141f8e6341bceac0d367",
-      "format_sha256": "374b9e938ae55b0a0159a843379ea390e61e113ac575141f8e6341bceac0d367",
+      "sha256": "e39bf6a626f094bd937ad7f903af0acd0a82aea3b94d49da8548396013da7729",
+      "size": 16584,
+      "normalized_sha256": "e39bf6a626f094bd937ad7f903af0acd0a82aea3b94d49da8548396013da7729",
+      "format_sha256": "e39bf6a626f094bd937ad7f903af0acd0a82aea3b94d49da8548396013da7729",
       "format_kind": "gofmt"
     },
     "internal/cli/index_entries_audit_test.go": {
diff --git a/internal/cli/index_entries_apply_atomic_test.go b/internal/cli/index_entries_apply_atomic_test.go
index 50d0e7bf..5a3f0b4f 100644
--- a/internal/cli/index_entries_apply_atomic_test.go
+++ b/internal/cli/index_entries_apply_atomic_test.go
@@ -36,9 +36,9 @@ const (
 	manualAtomicNewB = "b.go[XUT5T]: F:原子新职责乙 | R:a.go | A:- | S:-"
 )
 
-// blockBaselineBackupReplacement以非空目录占据备份目标。
-// POSIX rename不能覆盖目录，Windows回退删除也不能移除非空目录，
-// 因而两端都会在真实AtomicWrite备份阶段稳定失败。
+// blockBaselineBackupReplacement occupies the backup target with a nonempty
+// directory. Keep it open so Windows cannot rename it aside during AtomicWrite's
+// fallback; POSIX already rejects replacing the directory with a file.
 func blockBaselineBackupReplacement(t *testing.T, root string) func() {
 	t.Helper()
 	backupPath := filepath.Join(root, ".aoci", "baseline.json.bak")
@@ -49,12 +49,20 @@ func blockBaselineBackupReplacement(t *testing.T, root string) func() {
 	if err := os.WriteFile(blockerPath, []byte("block\n"), 0o644); err != nil {
 		t.Fatal(err)
 	}
+	backup, err := os.Open(backupPath)
+	if err != nil {
+		t.Fatal(err)
+	}
 	blocked := true
-	return func() {
+	unblock := func() {
+		t.Helper()
 		if !blocked {
 			return
 		}
 		blocked = false
+		if err := backup.Close(); err != nil {
+			t.Fatal(err)
+		}
 		if err := os.Remove(blockerPath); err != nil {
 			t.Fatal(err)
 		}
@@ -62,6 +70,8 @@ func blockBaselineBackupReplacement(t *testing.T, root string) func() {
 			t.Fatal(err)
 		}
 	}
+	t.Cleanup(unblock)
+	return unblock
 }
 
 // buildManualAtomicEntriesRepo构造不启用Host-Agent Plan防线的Endpoint草稿仓。