Method test_batched

Lib/test/test_itertools.py:2221–2232

(self)

        self.assertRaises(ZeroDivisionError, list, accumulate(E(s)))

    def test_batched(self):
        s = 'abcde'
        r = [('a', 'b'), ('c', 'd'), ('e',)]
        n = 2
        for g in (G, I, Ig, L, R):
            with self.subTest(g=g):
                self.assertEqual(list(batched(g(s), n)), r)
        self.assertEqual(list(batched(S(s), 2)), [])
        self.assertRaises(TypeError, batched, X(s), 2)
        self.assertRaises(TypeError, batched, N(s), 2)
        self.assertRaises(ZeroDivisionError, list, batched(E(s), 2))
        self.assertRaises(ZeroDivisionError, list, batched(E2(s), 4))

    def test_chain(self):
        for s in ("123", "", range(1000), ('do', 1.2), range(2000,2200,5)):