From 7e36b7231574d0f9ab106f903a8d832f58157594 Mon Sep 17 00:00:00 2001
From: Younghee Kwon <youngheek@google.com>
Date: Fri, 9 Oct 2026 16:26:39 -0700
Subject: [PATCH] Skip MultiprocessingOptionsTest on Windows.

PiperOrigin-RevId: 996825735
---
 grain/_src/python/options_test.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/grain/_src/python/options_test.py b/grain/_src/python/options_test.py
index b1c555ea5..4544e9000 100644
--- a/grain/_src/python/options_test.py
+++ b/grain/_src/python/options_test.py
@@ -1,3 +1,4 @@
+import platform
 from unittest import mock
 
 from absl import logging
@@ -59,6 +60,10 @@ def test_prefetch_buffer_size_zero(self):
       mock_warning.assert_not_called()
 
 
+@absltest.skipIf(
+    platform.system() == "Windows",
+    "mp_prefetch can't hand over shared memory on Windows.",
+)
 class MultiprocessingOptionsTest(absltest.TestCase):
 
   def test_example_docstring(self):