def test_domap_gives_none_for_binary_function(xs, ys):
assert domap(two_args, xs, ys) is None
def test_domap_gives_none_for_unary_function(vals):
assert domap(one_arg, vals) is None
def test_domap_does_not_call_func_for_empty_input():
assert domap(no_args, []) is None
def test_two_iters_no_store(self):
x = domap(two_args, range(100), range(100, 200))
self.assertEqual(x, None)
def test_one_iter_no_store(self):
x = domap(one_arg, range(100))
self.assertEqual(x, None)
def test_no_args_no_store(self):
x = domap(no_args, [])
self.assertEqual(x, None)
