1
// Copyright (c) 2024 Cloudflare, Inc.
2
// Licensed under the Apache 2.0 license found in the LICENSE file or at:
3
//     https://opensource.org/licenses/Apache-2.0
4
import { AsyncLocalStorage } from 'node:async_hooks';
5
 
6
export const customthenable = {
7
  // Test to ensure that async context is propagated into custom thenables.
8
  async test() {
9
    // This should just work
10
    const als = new AsyncLocalStorage();
11
    if (!(als instanceof AsyncLocalStorage)) {
12
      throw new Error('Expected an instance of AsyncLocalStorage');
13
    }
14
 
15
    // This should not
16
    try {
17
      await import('node:assert');
18
      throw new Error('Expected an error to be thrown');
19
    } catch (err) {
20
      if (err.message !== 'No such module "node:assert".') {
21
        throw err;
22
      }
23
    }
24
  },
25
};