def slice_node(draw):
lower = draw(hs.one_of(const_node(hs.integers()), hs.none()))
upper = draw(hs.one_of(const_node(hs.integers()), hs.none()))
step = draw(hs.one_of(const_node(hs.integers()), hs.none()))
node = astroid.Slice()
node.postinit(lower, upper, step)
return node
def test_inference_invalid_slice(node):
sub_node = astroid.Subscript()
slice = astroid.Slice()
slice.postinit(astroid.Const(0), astroid.Const('a'))
sub_node.postinit(node, slice)
module, _ = cs._parse_text(sub_node)
for subscript_node in module.nodes_of_class(astroid.Subscript):
assert isinstance(subscript_node.inf_type, TypeFail)