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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_observe_idempotent.https.window.html?globalScope=dedicated_worker - WPT Dashboard Interop Dashboard
- /compute-pressure/compute_pressure_observe_idempotent.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 update = await new Promise((resolve, reject) => {
const observer = new PressureObserver(resolve);
t.add_cleanup(() => observer.disconnect());
observer.observe('cpu').catch(reject);
observer.observe('cpu').catch(reject);
observer.observe('cpu').catch(reject);
update_virtual_pressure_source('cpu', 'critical').catch(reject);
});
assert_equals(update[0].state, 'critical');
}, 'PressureObserver.observe() is idempotent');
mark_as_done();