blob: b31b194b9f236d1d2db3ba61ce43863b23a6f6a5 [file] [log] [blame]
/**
* @license
* Copyright 2022 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import {assert} from '@open-wc/testing';
import '../../test/common-test-setup';
import {assertFails} from '../../test/test-utils';
import {FakeScheduler} from './fake-scheduler';
suite('fake scheduler', () => {
let scheduler: FakeScheduler<number>;
setup(() => {
scheduler = new FakeScheduler<number>();
});
test('schedules tasks', () => {
scheduler.schedule(async () => 1);
assert.equal(scheduler.scheduled.length, 1);
});
test('resolves tasks', async () => {
const promise = scheduler.schedule(async () => 1);
await scheduler.resolve();
const val = await promise;
assert.equal(val, 1);
});
test('rejects tasks', async () => {
const promise = scheduler.schedule(async () => 1);
assertFails(promise);
await scheduler.reject(new Error('Fake Error'));
});
test('propagates errors', async () => {
const error = new Error('This is an error');
const promise = scheduler.schedule(async () => {
throw error;
});
assertFails(promise, error);
await scheduler.resolve();
await promise.catch((reason: Error) => {
assert.equal(reason, error);
});
});
});