changeset:   88654:3637ccf9516a
parent:      88652:8fe59931b64d
user:        Victor Stinner <victor.stinner@gmail.com>
date:        Thu Jan 23 15:07:26 2014 +0100
files:       Lib/test/test_selectors.py
description:
Issue #20311: add debug help in test_selectors


diff -r 8fe59931b64d -r 3637ccf9516a Lib/test/test_selectors.py
--- a/Lib/test/test_selectors.py	Thu Jan 23 11:25:48 2014 +0100
+++ b/Lib/test/test_selectors.py	Thu Jan 23 15:07:26 2014 +0100
@@ -5,7 +5,7 @@
 import signal
 import socket
 from test import support
-from time import sleep, perf_counter
+from time import sleep, perf_counter, get_clock_info
 import unittest
 import unittest.mock
 try:
@@ -377,7 +377,10 @@
             t0 = perf_counter()
             s.select(timeout)
             dt = perf_counter() - t0
-            self.assertGreaterEqual(dt, timeout)
+            clock = get_clock_info('perf_counter')
+            self.assertGreaterEqual(dt, timeout,
+                                    "%.30f < %.30f ; clock=%s"
+                                    % (dt, timeout, clock))
 
 
 class ScalableSelectorMixIn: