gh-110088, gh-109878: Fix test_asyncio timeouts (#110092)

Fix test_asyncio timeouts: don't measure the maximum duration, a test
should not measure a CI performance. Only measure the minimum
duration when a task has a timeout or delay. Add CLOCK_RES to
test_asyncio.utils.

1 files changed, 4 insertions, 4 deletions

diff --git a/Lib/test/test_asyncio/test_events.py b/Lib/test/test_asyncio/test_events.py
index f22cb5e..3ee6565 100644
--- a/Lib/test/test_asyncio/test_events.py
+++ b/Lib/test/test_asyncio/test_events.py
@@ -293,10 +293,11 @@ class EventLoopTestsMixin:
     # 15.6 msec, we use fairly long sleep times here (~100 msec).
 
     def test_run_until_complete(self):
+        delay = 0.100
         t0 = self.loop.time()
-        self.loop.run_until_complete(asyncio.sleep(0.1))
-        t1 = self.loop.time()
-        self.assertTrue(0.08 <= t1-t0 <= 0.8, t1-t0)
+        self.loop.run_until_complete(asyncio.sleep(delay))
+        dt = self.loop.time() - t0
+        self.assertGreaterEqual(dt, delay - test_utils.CLOCK_RES)
 
     def test_run_until_complete_stopped(self):
 
@@ -1717,7 +1718,6 @@ class EventLoopTestsMixin:
         self.loop._run_once = _run_once
 
         async def wait():
-            loop = self.loop
             await asyncio.sleep(1e-2)
             await asyncio.sleep(1e-4)
             await asyncio.sleep(1e-6)