Method test_get_map

Lib/test/test_selectors.py:240–267

(self)

        self.assertRaises(KeyError, s.get_key, 999999)

    def test_get_map(self):
        s = self.SELECTOR()
        self.addCleanup(s.close)

        rd, wr = self.make_socketpair()
        sentinel = object()

        keys = s.get_map()
        self.assertFalse(keys)
        self.assertEqual(len(keys), 0)
        self.assertEqual(list(keys), [])
        self.assertEqual(keys.get(rd), None)
        self.assertEqual(keys.get(rd, sentinel), sentinel)
        key = s.register(rd, selectors.EVENT_READ, "data")
        self.assertIn(rd, keys)
        self.assertEqual(key, keys.get(rd))
        self.assertEqual(key, keys[rd])
        self.assertEqual(len(keys), 1)
        self.assertEqual(list(keys), [rd.fileno()])
        self.assertEqual(list(keys.values()), [key])

        # unknown file obj
        with self.assertRaises(KeyError):
            keys[999999]

        # Read-only mapping
        with self.assertRaises(TypeError):
            del keys[rd]

    def test_select(self):
        s = self.SELECTOR()