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authorAntoine Pitrou <solipsis@pitrou.net>2011-03-24 14:47:39 (GMT)
committerAntoine Pitrou <solipsis@pitrou.net>2011-03-24 14:47:39 (GMT)
commitaebac0b55a1e3addb93ec7992046a4f9561b4175 (patch)
treee12ae3cf4a8e4d8a5aea041f493dcf0c8ac36041 /Lib/test/test_concurrent_futures.py
parent2024acd36ffa0b39229425843bfae572b50ef6e3 (diff)
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Add tests for the atexit hook in concurrent.futures (part of #11635)
Diffstat (limited to 'Lib/test/test_concurrent_futures.py')
-rw-r--r--Lib/test/test_concurrent_futures.py55
1 files changed, 40 insertions, 15 deletions
diff --git a/Lib/test/test_concurrent_futures.py b/Lib/test/test_concurrent_futures.py
index f639eec..2662af7 100644
--- a/Lib/test/test_concurrent_futures.py
+++ b/Lib/test/test_concurrent_futures.py
@@ -9,6 +9,9 @@ test.support.import_module('multiprocessing.synchronize')
# without thread support.
test.support.import_module('threading')
+from test.script_helper import assert_python_ok
+
+import sys
import threading
import time
import unittest
@@ -43,9 +46,30 @@ def sleep_and_raise(t):
time.sleep(t)
raise Exception('this is an exception')
+def sleep_and_print(t, msg):
+ time.sleep(t)
+ print(msg)
+ sys.stdout.flush()
+
class ExecutorMixin:
worker_count = 5
+
+ def setUp(self):
+ self.t1 = time.time()
+ try:
+ self.executor = self.executor_type(max_workers=self.worker_count)
+ except NotImplementedError as e:
+ self.skipTest(str(e))
+ self._prime_executor()
+
+ def tearDown(self):
+ self.executor.shutdown(wait=True)
+ dt = time.time() - self.t1
+ if test.support.verbose:
+ print("%.2fs" % dt, end=' ')
+ self.assertLess(dt, 60, "synchronization issue: test lasted too long")
+
def _prime_executor(self):
# Make sure that the executor is ready to do work before running the
# tests. This should reduce the probability of timeouts in the tests.
@@ -57,24 +81,11 @@ class ExecutorMixin:
class ThreadPoolMixin(ExecutorMixin):
- def setUp(self):
- self.executor = futures.ThreadPoolExecutor(max_workers=5)
- self._prime_executor()
-
- def tearDown(self):
- self.executor.shutdown(wait=True)
+ executor_type = futures.ThreadPoolExecutor
class ProcessPoolMixin(ExecutorMixin):
- def setUp(self):
- try:
- self.executor = futures.ProcessPoolExecutor(max_workers=5)
- except NotImplementedError as e:
- self.skipTest(str(e))
- self._prime_executor()
-
- def tearDown(self):
- self.executor.shutdown(wait=True)
+ executor_type = futures.ProcessPoolExecutor
class ExecutorShutdownTest(unittest.TestCase):
@@ -84,6 +95,20 @@ class ExecutorShutdownTest(unittest.TestCase):
self.executor.submit,
pow, 2, 5)
+ def test_interpreter_shutdown(self):
+ # Test the atexit hook for shutdown of worker threads and processes
+ rc, out, err = assert_python_ok('-c', """if 1:
+ from concurrent.futures import {executor_type}
+ from time import sleep
+ from test.test_concurrent_futures import sleep_and_print
+ t = {executor_type}(5)
+ t.submit(sleep_and_print, 1.0, "apple")
+ """.format(executor_type=self.executor_type.__name__))
+ # Errors in atexit hooks don't change the process exit code, check
+ # stderr manually.
+ self.assertFalse(err)
+ self.assertEqual(out.strip(), b"apple")
+
class ThreadPoolShutdownTest(ThreadPoolMixin, ExecutorShutdownTest):
def _prime_executor(self):