Mypal/dom/performance/tests/test_worker_performance_now.js
2019-03-11 13:26:37 +03:00

31 lines
890 B
JavaScript

function ok(a, msg) {
dump("OK: " + !!a + " => " + a + ": " + msg + "\n");
postMessage({type: 'status', status: !!a, msg: a + ": " + msg });
}
function workerTestDone() {
postMessage({ type: 'finish' });
}
function workerTestGetOSCPU(cb) {
addEventListener('message', function workerTestGetOSCPUCB(e) {
if (e.data.type !== 'returnOSCPU') {
return;
}
removeEventListener('message', workerTestGetOSCPUCB);
cb(e.data.result);
});
postMessage({
type: 'getOSCPU'
});
}
ok(self.performance, "Performance object should exist.");
ok(typeof self.performance.now == 'function', "Performance object should have a 'now' method.");
var n = self.performance.now(), d = Date.now();
ok(n >= 0, "The value of now() should be equal to or greater than 0.");
ok(self.performance.now() >= n, "The value of now() should monotonically increase.");
workerTestDone();