From cb5118ae0394b6075f0c3ca2a9c8733ecca37b9c Mon Sep 17 00:00:00 2001
From: Justus Magin <keewis@posteo.de>
Date: Tue, 25 Jun 2024 00:51:13 +0200
Subject: [PATCH] switch to unit `"D"`

Apparently, `pandas` deprecated lower-case `"d"`.
---
 xarray/tests/test_missing.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xarray/tests/test_missing.py b/xarray/tests/test_missing.py
index 3adcc132b61..da9513a7c71 100644
--- a/xarray/tests/test_missing.py
+++ b/xarray/tests/test_missing.py
@@ -84,7 +84,7 @@ def make_interpolate_example_data(shape, frac_nan, seed=12345, non_uniform=False
 
     if non_uniform:
         # construct a datetime index that has irregular spacing
-        deltas = pd.to_timedelta(rs.normal(size=shape[0], scale=10), unit="d")
+        deltas = pd.to_timedelta(rs.normal(size=shape[0], scale=10), unit="D")
         coords = {"time": (pd.Timestamp("2000-01-01") + deltas).sort_values()}
     else:
         coords = {"time": pd.date_range("2000-01-01", freq="D", periods=shape[0])}