asyncio: Fix BaseSelectorEventLoopTests (#4595)

Currently, two tests fail with PYTHONASYNCIODEBUG=1 (or using -X
dev).

diff --git a/Lib/test/test_asyncio/test_selector_events.py b/Lib/test/test_asyncio/test_selector_events.py
index e67afcc72040989f4dd9feea3a61bdc574f4d0fa..2adb43ae725af3592dc61cef8e0a2d048b35723a 100644 (file)
--- a/Lib/test/test_asyncio/test_selector_events.py
+++ b/Lib/test/test_asyncio/test_selector_events.py
@@ -187,6 +187,7 @@ class BaseSelectorEventLoopTests(test_utils.TestCase):
         sock = mock.Mock()
         sock.fileno.return_value = 10
         sock.recv.side_effect = BlockingIOError
+        sock.gettimeout.return_value = 0.0
 
         self.loop.add_reader = mock.Mock()
         self.loop.remove_reader = mock.Mock()
@@ -267,6 +268,7 @@ class BaseSelectorEventLoopTests(test_utils.TestCase):
         sock = mock.Mock()
         sock.fileno.return_value = 10
         sock.send.side_effect = BlockingIOError
+        sock.gettimeout.return_value = 0.0
 
         self.loop.add_writer = mock.Mock()
         self.loop.remove_writer = mock.Mock()