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products/Sources/formale Sprachen/C/Firefox/dom/webgpu/tests/mochitest/ (Firefox Browser Version 153.0.1^©) Datei vom 27.6.2026 mit Größe 2 kB

Quelle test_device_lost.html

Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/webgpu/tests/mochitest/test_device_lost.html

<!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 () {
        info("destroy_causes_lost START");
        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();
        info("waiting for lostPromise");
        const deviceLostReason = await lostPromise;
        info("lostPromise has resolved");

        is(
          deviceLostReason.reason,
          "destroyed",
          "Destroy reason should correspond to GPUDeviceLostReason.destroyed"
        );
        is(deviceLostReason.message, "Device destroyed", "Destroy message does not match");
        info("destroy_causes_lost END");
      };

      const drop_causes_lost_is_unobservable = async function () {
        info("drop_causes_lost_is_unobservable START");
        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");

          // Create a new promise that will resolve when the original
          // lost promise resolves or rejects, either of which will be
          // noted as an error.
          lostPromise = device.lost.then(
            resolve => {
              ok(false, "device.lost should never resolve");
              resolve("unexpected resolve");
            },
            reject => {
              ok(false, "device.lost should never reject");
              reject("unexpected reject");
            }
          );
        }

        // Give a chance (one event cycle) for the lostPromise to resolve or
        // reject, but don't wait for any specific amount of time.
        await new Promise(SimpleTest.executeSoon);
        info("drop_causes_lost_is_unobservable END");
      };

      SimpleTest.waitForExplicitFinish();

      destroy_causes_lost()
        .then(() => drop_causes_lost_is_unobservable())
        .catch(e => ok(false, `Unhandled exception ${e}`))
        .finally(() => SimpleTest.finish());
    </script>
  </body>
</html>

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¤ Dauer der Verarbeitung: 0.3 Sekunden ¤

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