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// META: script=/resources/test-only-api.js
// META: script=resources/pressure-helpers.js
// META: global=window,dedicatedworker,sharedworker
'use strict';
pressure_test(async (t, mockPressureService) => {
const changes = await new Promise(resolve => {
const observer = new PressureObserver(resolve);
t.add_cleanup(() => observer.disconnect());
observer.observe('cpu');
mockPressureService.setPressureUpdate('cpu', 'critical');
mockPressureService.startPlatformCollector(/*sampleRate=*/ 5.0);
});
assert_true(changes.length === 1);
assert_equals(changes[0].state, 'critical');
assert_equals(changes[0].source, 'cpu');
assert_equals(typeof changes[0].time, 'number');
}, 'Basic factors functionality test');
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