:chairflip:

src/python/grpcio_tests/commands.py

@@ -227,10 +227,7 @@ class TestGevent(setuptools.Command):
     )
     BANNED_WINDOWS_TESTS = (
         # TODO(https://github.com/grpc/grpc/pull/15411) enable this test
-        'unit._dns_resolver_test.DNSResolverTest.test_connect_loopback',
+        'unit._dns_resolver_test.DNSResolverTest.test_connect_loopback',)
-        # TODO(https://github.com/grpc/grpc/issues/22257)
-        'unit._contextvars_propagation_test.ContextVarsPropagationTest',
-    )
     description = 'run tests with gevent.  Assumes grpc/gevent are installed'
     user_options = []
 

src/python/grpcio_tests/tests/unit/_contextvars_propagation_test.py

@@ -15,6 +15,7 @@
 
 import contextlib
 import logging
+import os
 import sys
 import unittest
 
@@ -98,6 +99,8 @@ else:
             pass
 
 
+# TODO(https://github.com/grpc/grpc/issues/22257)
+@unittest.skipIf(os.name == "nt", "LocalCredentials not supported on Windows.")
 class ContextVarsPropagationTest(unittest.TestCase):
 
     def test_propagation_to_auth_plugin(self):