node/test/parallel/test-async-local-storage-ex...

29 lines
865 B
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const { AsyncLocalStorage } = require('async_hooks');
const als = new AsyncLocalStorage();
// The _propagate function only exists on the old JavaScript implementation.
if (typeof als._propagate === 'function') {
// The als instance should be getting removed from the storageList in
// lib/async_hooks.js when exit(...) is called, therefore when the nested runs
// are called there should be no copy of the als in the storageList to run the
// _propagate method on.
als._propagate = common.mustNotCall('_propagate() should not be called');
}
const done = common.mustCall();
const data = true;
function run(count) {
if (count === 0) return done();
assert.notStrictEqual(als.getStore(), data);
als.run(data, () => {
als.exit(run, --count);
});
}
run(100);