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bpo-32208: update threading.Semaphore docs and add unit test (#4709)

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* fix issue32208: update threading.Semaphore docs and add unit test to validate correct behavior

* add test for blocking

* Update threading.rst

* semaphore: remove documentation validation tests and move 'return value' test to BaseSemaphore
This commit is contained in:
Garrett Berg 2017-12-07 11:04:26 -07:00 • committed by Andrew Svetlov
parent 961dbe0548
commit a0374dd34a
2 changed files with 17 additions and 15 deletions
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6
Lib/test/lock_tests.py
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@ -629,13 +629,14 @@ class BaseSemaphoreTests(BaseTestCase):
sem = self.semtype(7)
sem.acquire()
N = 10
sem_results = []
results1 = []
results2 = []
phase_num = 0
def f():
sem.acquire()
sem_results.append(sem.acquire())
results1.append(phase_num)
sem.acquire()
sem_results.append(sem.acquire())
results2.append(phase_num)
b = Bunch(f, 10)
b.wait_for_started()
@ -659,6 +660,7 @@ class BaseSemaphoreTests(BaseTestCase):
# Final release, to let the last thread finish
sem.release()
b.wait_for_finished()
self.assertEqual(sem_results, [True] * (6 + 7 + 6 + 1))
def test_try_acquire(self):
sem = self.semtype(2)