From 62884585a79bfeade4238af563ac22a92a9cc3d7 Mon Sep 17 00:00:00 2001
From: chenyu <chenyu@fastmail.com>
Date: Tue, 27 Jan 2026 14:37:17 -0500
Subject: [PATCH] failed test case for copysign -0.0 (#14379)

* failed test case for copysign -0.0

* skip those
---
 test/test_ops.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/test/test_ops.py b/test/test_ops.py
index 39d70e661d..72d354f677 100644
--- a/test/test_ops.py
+++ b/test/test_ops.py
@@ -951,6 +951,11 @@ class TestOps(unittest.TestCase):
     for i in [-1.,0.,1.]:
       for j in [-1., 0., 1.]:
         helper_test_op(None, torch.copysign, Tensor.copysign, vals=[[i], [j]])
+  # TODO: fix copysign to distinguish between -0.0 and 0.0
+  @unittest.skipIf(COMPILE_ONLY or getenv("TINY_BACKEND"), "test requires runtime")
+  @unittest.expectedFailure
+  def test_copysign_signed_zero(self):
+    helper_test_op(None, torch.copysign, Tensor.copysign, vals=[[1.0, 1.0], [-0.0, 0.0]])
 
   def test_logaddexp(self):
     helper_test_op([(45,65), (45,65)], torch.logaddexp, Tensor.logaddexp)