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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /compute-pressure/compute_pressure_multiple.https.window.html?globalScope=dedicated_worker - WPT Dashboard Interop Dashboard
- /compute-pressure/compute_pressure_multiple.https.window.html?globalScope=window - WPT Dashboard Interop Dashboard
// 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 => {
await create_virtual_pressure_source('cpu');
t.add_cleanup(async () => {
await remove_virtual_pressure_source('cpu');
});
const changes1_promise = new Promise((resolve, reject) => {
const observer = new PressureObserver(resolve);
t.add_cleanup(() => observer.disconnect());
observer.observe('cpu').catch(reject);
});
const changes2_promise = new Promise((resolve, reject) => {
const observer = new PressureObserver(resolve);
t.add_cleanup(() => observer.disconnect());
observer.observe('cpu').catch(reject);
});
const changes3_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 [changes1, changes2, changes3] =
await Promise.all([changes1_promise, changes2_promise, changes3_promise]);
for (const changes of [changes1, changes2, changes3]) {
assert_equals(changes[0].state, 'critical');
}
}, 'Three PressureObserver instances receive changes');
mark_as_done();