Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test has a WPT meta file that expects 5 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /compute-pressure/compute_pressure_basic.https.window.html?globalScope=dedicated_worker - WPT Dashboard Interop Dashboard
- /compute-pressure/compute_pressure_basic.https.window.html?globalScope=window - WPT Dashboard Interop Dashboard
// META: timeout=long
// META: variant=?globalScope=window
// META: variant=?globalScope=dedicated_worker
// META: script=/resources/testdriver.js
// META: script=/resources/testdriver-vendor.js
// META: script=/common/utils.js
// META: script=/common/dispatcher/dispatcher.js
// META: script=./resources/common.js
'use strict';
pressure_test(async (t) => {
const observer = new PressureObserver(() => {
assert_unreached('The observer callback should not be called');
});
await create_virtual_pressure_source('cpu', {supported: false});
t.add_cleanup(async () => {
await remove_virtual_pressure_source('cpu');
});
return promise_rejects_dom(t, 'NotSupportedError', observer.observe('cpu'));
}, 'Return NotSupportedError when calling observer()');
pressure_test(async (t) => {
await create_virtual_pressure_source('cpu');
t.add_cleanup(async () => {
await remove_virtual_pressure_source('cpu');
});
const changes = await new Promise((resolve, reject) => {
const observer = new PressureObserver(resolve);
t.add_cleanup(() => observer.disconnect());
observer.observe('cpu').catch(reject);
update_virtual_pressure_source('cpu', 'critical').catch(reject);
});
assert_equals(1, changes.length);
assert_equals(changes[0].state, 'critical');
assert_equals(changes[0].source, 'cpu');
assert_equals(typeof changes[0].time, 'number');
}, 'Basic functionality test');
pressure_test(async (t) => {
await create_virtual_pressure_source('cpu');
t.add_cleanup(async () => {
await remove_virtual_pressure_source('cpu');
});
const observer = new PressureObserver(() => {
assert_unreached('The observer callback should not be called');
});
await update_virtual_pressure_source('cpu', 'critical');
const promise = observer.observe('cpu');
observer.unobserve('cpu');
return promise_rejects_dom(t, 'AbortError', promise);
}, 'Removing observer before observe() resolves works');
pressure_test(async (t) => {
await create_virtual_pressure_source('cpu');
t.add_cleanup(async () => {
await remove_virtual_pressure_source('cpu');
});
const callbackPromises = [];
const observePromises = [];
for (let i = 0; i < 2; i++) {
callbackPromises.push(new Promise(resolve => {
const observer = new PressureObserver(resolve);
t.add_cleanup(() => observer.disconnect());
observePromises.push(observer.observe('cpu'));
}));
}
await Promise.all(observePromises);
await update_virtual_pressure_source('cpu', 'critical');
return Promise.all(callbackPromises);
}, 'Calling observe() multiple times works');
pressure_test(async (t) => {
await create_virtual_pressure_source('cpu');
t.add_cleanup(async () => {
await remove_virtual_pressure_source('cpu');
});
const observer1_promise = new Promise((resolve, reject) => {
const observer = new PressureObserver(resolve);
t.add_cleanup(() => observer.disconnect());
observer.observe('cpu').catch(reject);
});
await update_virtual_pressure_source('cpu', 'critical');
const observer1_changes = await observer1_promise;
assert_equals(1, observer1_changes.length);
assert_equals(observer1_changes[0].source, 'cpu');
assert_equals(observer1_changes[0].state, 'critical');
const observer2_changes = await new Promise((resolve, reject) => {
const observer = new PressureObserver(resolve);
t.add_cleanup(() => observer.disconnect());
observer.observe('cpu').catch(reject);
});
assert_equals(1, observer2_changes.length);
assert_equals(observer2_changes[0].source, 'cpu');
assert_equals(observer2_changes[0].state, 'critical');
}, 'Starting a new observer after an observer has started works');
mark_as_done();