From fe97e5db9c6677a25442897b50750ed6789ce568 Mon Sep 17 00:00:00 2001
From: Jesse Grabowski <jessegrabowski@gmail.com>
Date: Tue, 31 Dec 2024 23:22:55 +0800
Subject: [PATCH] Subtract 1 from LU pivot indices

---
 tests/link/numba/test_slinalg.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/link/numba/test_slinalg.py b/tests/link/numba/test_slinalg.py
index 284c9227a7..7b0215bbc5 100644
--- a/tests/link/numba/test_slinalg.py
+++ b/tests/link/numba/test_slinalg.py
@@ -252,7 +252,10 @@ def getrf(x):
 
     assert info == 0
     assert_allclose(LU, lu)
-    assert_allclose(IPIV, ipiv)
+
+    # TODO: It seems IPIV is 1-indexed in FORTRAN, so we need to subtract 1. I can't find evidence that scipy is doing
+    #  this, though.
+    assert_allclose(IPIV - 1, ipiv)
 
 
 @pytest.mark.parametrize("trans", [0, 1])