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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script>
ok(
SpecialPowers.getBoolPref("dom.webgpu.enabled"),
"Pref should be enabled."
);
const destroy_causes_lost = async function () {
const adapter = await navigator.gpu.requestAdapter();
ok(adapter !== undefined, "adapter !== undefined");
const device = await adapter.requestDevice();
ok(device !== undefined, "device !== undefined");
const lostPromise = device.lost;
device.destroy();
const deviceLostReason = await lostPromise;
is(
deviceLostReason.reason,
"destroyed",
"Destroy reason should correspond to GPUDeviceLostReason.destroyed"
);
is(deviceLostReason.message, "", "Destroy message should be blank");
};
const drop_causes_lost_is_unobservable = async function () {
const adapter = await navigator.gpu.requestAdapter();
ok(adapter !== undefined, "adapter !== undefined");
let lostPromise;
// Create a scope with a device that will go out of scope
// and then be dropped.
{
const device = await adapter.requestDevice();
ok(device !== undefined, "device !== undefined");
lostPromise = device.lost;
}
SimpleTest.requestFlakyTimeout(
"Racing against promise that should never resolve."
);
const TIMEOUT_MS = 5000;
let timeoutPromise = new Promise(resolve => {
let timeoutValue = { reason: "timeout" };
// eslint-disable-next-line mozilla/no-arbitrary-setTimeout
setTimeout(() => resolve(timeoutValue), TIMEOUT_MS);
});
const firstPromise = await Promise.race([lostPromise, timeoutPromise]);
is(
firstPromise.reason,
"timeout",
"timeoutPromise should return before lostPromise."
);
};
SimpleTest.waitForExplicitFinish();
destroy_causes_lost()
.then(() => drop_causes_lost_is_unobservable())
.catch(e => ok(false, `Unhandled exception ${e}`))
.finally(() => SimpleTest.finish());
</script>
</body>
</html>
|
