14 lines
605 B
JavaScript
14 lines
605 B
JavaScript
// META: title=Scheduler: TaskSignal onprioritychange
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// META: global=window,worker
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'use strict';
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async_test(t => {
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const controller = new TaskController({priority: 'user-visible'});
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controller.signal.onprioritychange = t.step_func_done((event) => {
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assert_equals(controller.signal.priority, 'background');
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assert_equals(event.type, 'prioritychange');
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assert_equals(event.target.priority, 'background');
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assert_equals(event.previousPriority, 'user-visible');
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});
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controller.setPriority('background');
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}, 'Test that TaskSignal.onprioritychange listens for prioritychange events');
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