gentoo-overlay/dev-python/dask/files/dask-2021.10.0-warning.patch

From f59293c180f846a220762701006d25655095991f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Sat, 23 Oct 2021 09:09:29 +0200
Subject: [PATCH] Fix test_describe_empty to work without global -Werror

Fix test_describe_empty to work when the test suite is run without
global -Werror.  This is e.g. desirable for packagers who don't want
the test suite for a fixed version to suddenly start failing due to
DeprecationWarnings in dependencies that otherwise don't break
the package.

Since the test expects either a ValueError or a RuntimeWarning, it seems
that the easiest way to assert for that is to inject the "error" filter
for the scope of the call.
---
 dask/dataframe/tests/test_dataframe.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/dask/dataframe/tests/test_dataframe.py b/dask/dataframe/tests/test_dataframe.py
index 32edb488..e0d88ba8 100644
--- a/dask/dataframe/tests/test_dataframe.py
+++ b/dask/dataframe/tests/test_dataframe.py
@@ -570,7 +570,11 @@ def test_describe_empty():
     )
 
     with pytest.raises((ValueError, RuntimeWarning)):
-        ddf_len0.describe(percentiles_method="dask").compute()
+        with warnings.catch_warnings():
+            # ensure that the warning is turned into an error since this is
+            # the easiest way to assert for exception-or-warning
+            warnings.simplefilter("error")
+            ddf_len0.describe(percentiles_method="dask").compute()
 
     with pytest.raises(ValueError):
         ddf_nocols.describe(percentiles_method="dask").compute()
-- 
2.33.1