task-controller-setPriority1.any.js

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /scheduler/task-controller-setPriority1.any.html - WPT Dashboard Interop Dashboard
- /scheduler/task-controller-setPriority1.any.serviceworker.html - WPT Dashboard Interop Dashboard
- /scheduler/task-controller-setPriority1.any.sharedworker.html - WPT Dashboard Interop Dashboard
- /scheduler/task-controller-setPriority1.any.worker.html - WPT Dashboard Interop Dashboard

// META: title=Scheduler: TaskController.setPriority()

// META: global=window,worker

'use strict';

promise_test(async t => {

  const controller = new TaskController();

  const signal = controller.signal;

  const tasks = [];

  const runOrder = [];

  const callback = id => { runOrder.push(id); };

  for (let i = 0; i < 5; i++)

    tasks.push(scheduler.postTask(() => callback(i), {signal}));

  tasks.push(scheduler.postTask(() => callback(5), {priority: 'user-blocking'}));

  tasks.push(scheduler.postTask(() => callback(6), {priority: 'user-visible' }));

  controller.setPriority('background');

  assert_equals(signal.priority, 'background');

  await Promise.all(tasks);

  assert_equals(runOrder.toString(), '5,6,0,1,2,3,4');

}, 'Test that TaskController.setPriority() changes the priority of all associated tasks');