Method test_chain

Lib/test/test_itertools.py:1553–1554

(self)

        self.assertEqual(list(accumulate([1,2,3,4,5])), [1, 3, 6, 10, 15])

    def test_chain(self):
        self.assertEqual(''.join(chain('ABC', 'DEF')), 'ABCDEF')

    def test_chain_from_iterable(self):
        self.assertEqual(''.join(chain.from_iterable(['ABC', 'DEF'])), 'ABCDEF')