From 04dce89790881d3bc1a4659a4020e7899759be13 Mon Sep 17 00:00:00 2001
From: Paul Sokolovsky <pfalcon@users.sourceforge.net>
Date: Mon, 10 Aug 2020 20:54:49 +0300
Subject: [PATCH] unittest: Add dummy TestCase.assertWarns() context manager.

Signed-off-by: Paul Sokolovsky <pfalcon@users.sourceforge.net>
---
 python-stdlib/unittest/unittest.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/python-stdlib/unittest/unittest.py b/python-stdlib/unittest/unittest.py
index deb678b9..5911117c 100644
--- a/python-stdlib/unittest/unittest.py
+++ b/python-stdlib/unittest/unittest.py
@@ -161,6 +161,9 @@ class TestCase:
 
         assert False, "%r not raised" % exc
 
+    def assertWarns(self, warn):
+        return NullContext()
+
 
 def skip(msg):
     def _decor(fun):