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-rw-r--r--Lib/test/test_asyncio/test_locks.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/test/test_asyncio/test_locks.py b/Lib/test/test_asyncio/test_locks.py
index 19ef877..539c5c3 100644
--- a/Lib/test/test_asyncio/test_locks.py
+++ b/Lib/test/test_asyncio/test_locks.py
@@ -684,6 +684,10 @@ class SemaphoreTests(unittest.TestCase):
finally:
events.set_event_loop(None)
+ def test_initial_value_zero(self):
+ sem = locks.Semaphore(0, loop=self.loop)
+ self.assertTrue(sem.locked())
+
def test_repr(self):
sem = locks.Semaphore(loop=self.loop)
self.assertTrue(repr(sem).endswith('[unlocked,value:1]>'))