bun.sh/test/js/node/async_hooks/async_hooks.node.test.ts

import { AsyncLocalStorage } from "async_hooks";
import assert from "assert";

test("node async_hooks.AsyncLocalStorage enable disable", async () => {
  const asyncLocalStorage = new AsyncLocalStorage();

  asyncLocalStorage.run(new Map(), () => {
    asyncLocalStorage.getStore().set("foo", "bar");
    process.nextTick(() => {
      assert.strictEqual(asyncLocalStorage.getStore().get("foo"), "bar");
      process.nextTick(() => {
        assert.strictEqual(asyncLocalStorage.getStore(), undefined);
      });

      asyncLocalStorage.disable();
      assert.strictEqual(asyncLocalStorage.getStore(), undefined);

      // Calls to exit() should not mess with enabled status
      asyncLocalStorage.exit(() => {
        assert.strictEqual(asyncLocalStorage.getStore(), undefined);
      });
      assert.strictEqual(asyncLocalStorage.getStore(), undefined);

      process.nextTick(() => {
        assert.strictEqual(asyncLocalStorage.getStore(), undefined);
        asyncLocalStorage.run(new Map().set("bar", "foo"), () => {
          assert.strictEqual(asyncLocalStorage.getStore().get("bar"), "foo");

          done();
        });
      });
    });
  });
});