Method test_semaphore

Lib/test/test_asyncio/test_locks.py:938–949

(self)

        self.assertTrue(RGX_REPR.match(repr(sem)))

    async def test_semaphore(self):
        sem = asyncio.Semaphore()
        self.assertEqual(1, sem._value)

        with self.assertRaisesRegex(
            TypeError,
            "'Semaphore' object can't be awaited",
        ):
            await sem

        self.assertFalse(sem.locked())
        self.assertEqual(1, sem._value)

    def test_semaphore_value(self):
        self.assertRaises(ValueError, asyncio.Semaphore, -1)