test

Lib/test/eintrdata/eintr_tester.py

@@ -252,8 +252,23 @@ class SocketEINTRTest(EINTRBaseTest):
                         lambda path: os.close(os.open(path, os.O_WRONLY)))
 
 
+@unittest.skipUnless(hasattr(signal, "setitimer"), "requires setitimer()")
+class TimeEINTRTest(EINTRBaseTest):
+    """ EINTR tests for the time module. """
+
+    def test_sleep(self):
+        t0 = time.monotonic()
+        time.sleep(2)
+        signal.alarm(0)
+        dt = time.monotonic() - t0
+        self.assertGreaterEqual(dt, 1.9)
+
+
 def test_main():
-    support.run_unittest(OSEINTRTest, SocketEINTRTest)
+    support.run_unittest(
+        OSEINTRTest,
+        SocketEINTRTest,
+        TimeEINTRTest)
 
 
 if __name__ == "__main__":

Lib/test/test_signal.py

@@ -419,17 +419,20 @@ class WakeupSignalTests(unittest.TestCase):
             TIMEOUT_HALF = 5
 
             signal.alarm(1)
-            before_time = time.time()
+
             # We attempt to get a signal during the sleep,
             # before select is called
-            time.sleep(TIMEOUT_FULL)
-            mid_time = time.time()
-            dt = mid_time - before_time
-            if dt >= TIMEOUT_HALF:
-                raise Exception("%s >= %s" % (dt, TIMEOUT_HALF))
+            try:
+                select.select([], [], [], TIMEOUT_FULL)
+            except InterruptedError:
+                pass
+            else:
+                raise Exception("select() was not interrupted")
+
+            before_time = time.time()
             select.select([read], [], [], TIMEOUT_FULL)
             after_time = time.time()
-            dt = after_time - mid_time
+            dt = after_time - before_time
             if dt >= TIMEOUT_HALF:
                 raise Exception("%s >= %s" % (dt, TIMEOUT_HALF))
         """, signal.SIGALRM)