task-controller-setPriority-repeated.any.js

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

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

// 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); };

  tasks.push(scheduler.postTask(() => callback(0), {signal}));

  tasks.push(scheduler.postTask(() => callback(1), {priority: 'user-blocking'}));

  tasks.push(scheduler.postTask(() => callback(2), {priority: 'user-visible' }));

  controller.setPriority('background');

  assert_equals(signal.priority, 'background');

  await Promise.all(tasks);

  assert_equals(runOrder.toString(), '1,2,0');

  while (tasks.length) { tasks.pop(); }

  while (runOrder.length) { runOrder.pop(); }

  tasks.push(scheduler.postTask(() => callback(3), {signal}));

  tasks.push(scheduler.postTask(() => callback(4), {priority: 'user-blocking'}));

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

  controller.setPriority('user-blocking');

  assert_equals(signal.priority, 'user-blocking');

  await Promise.all(tasks);

  assert_equals(runOrder.toString(), '3,4,5');

}, 'TaskController.setPriority() changes the priority of all associated tasks when called repeatedly');

promise_test(async t => {

  const controller = new TaskController();

  const signal = controller.signal;

  const tasks = [];

  const runOrder = [];

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

  tasks.push(scheduler.postTask(() => callback(0), {signal}));

  tasks.push(scheduler.postTask(() => callback(1), {priority: 'user-blocking'}));

  tasks.push(scheduler.postTask(() => callback(2), {priority: 'user-visible' }));

  controller.setPriority('background');

  assert_equals(signal.priority, 'background');

  controller.setPriority('user-visible');

  assert_equals(signal.priority, 'user-visible');

  controller.setPriority('user-blocking');

  assert_equals(signal.priority, 'user-blocking');

  await Promise.all(tasks);

  assert_equals(runOrder.toString(), '0,1,2');

}, 'TaskController.setPriority() changes the priority of all associated tasks when called repeatedly before tasks run');