cloudron-box/src/test/locks-test.js

import { describe, it, before, after } from 'mocha';
import BoxError from '../boxerror.js';
import common from './common.js';
import assert from 'node:assert/strict';
import safe from 'safetydance';
import locks from '../locks.js';

describe('Locks', function () {

    const { setup, cleanup } = common;

    before(setup);
    after(cleanup);

    it('can release all locks', async function () {
        await locks.releaseAll();
    });

    it('acquire lock foo', async function () {
        await locks.acquire('foo');
    });

    it('cannot reacquire lock foo', async function () {
        const [error] = await safe(locks.acquire('foo'));
        assert.equal(error.reason, BoxError.BAD_STATE);
    });

    it('cannot reacquire after release', async function () {
        await locks.release('foo');
        await locks.acquire('foo');
    });

    it('task gets a lock', async function () {
        locks.setTaskId('42');
        await locks.acquire('tasklock');
    });

    it('can wait for a lock', async function () {
        setTimeout(() => locks.releaseByTaskId('42'), 3000); // release in 3 seconds

        const startTime = Date.now();
        await locks.wait('tasklock'); // retries only in 10s
        const endTime = Date.now();
        assert.ok((endTime - startTime) > (9900));
        assert.ok((endTime - startTime) < (10100));
    });
});