You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: no_parallel.rs
    path of file: ./repos/specs/tests
    
    the code of the file until where you have to start completion: #![cfg(not(feature = "parallel"))]

use std::rc::Rc;

use specs::{storage::VecStorage, Builder, Component, World, WorldExt};

#[derive(PartialEq)]
struct CompNonSend(Rc<u32>);

impl Component for CompNonSend {
    type Storage = VecStorage<Self>;
}

#[test]
fn non_send_component_
    
fn non_send_component_is_accepted() {
    let mut world = World::new();
    world.register::<CompNonSend>();

    let entity = world
        .create_entity()
        .with(CompNonSend(Rc::new(123)))
        .build();

    let comp_non_sends = world.read_storage::<CompNonSend>();
    let comp_non_send = comp_non_sends
        .get(entity)
        .expect("Expected component to exist.");
    assert_eq!(123, *comp_non_send.0);
}