public void testUnpacking() {
String s = "a, *b, c = range(5)";
Module ast = (Module) parseLegalDocStr(s);
Assign assign = (Assign) ast.body[0];
Tuple tup = (Tuple) assign.targets[0];
Starred starred = (Starred) tup.elts[1];
Name name = (Name) starred.value;
assertEquals("b", name.id);
assertEquals(Name.Store, name.ctx);
parseLegalDocStrWithoutTree(s);