def test_run():
for case in cases:
i, o = unzip(case)
check_run(i, list(o))
def test_unzip():
assert_equals(helper.unzip([(1, 2), (3, 4), (5, 6)]), [(1, 3, 5), (2, 4, 6)])
assert_equals(helper.unzip([(1, 2, 3), (4, 5, 6), (7, 8, 9)]), [(1, 4, 7), (2, 5, 8), (3, 6, 9)])