test_error_scope.html

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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 func = async function () {

        const adapter = await navigator.gpu.requestAdapter();

        const device = await adapter.requestDevice();

        device.pushErrorScope("validation");

        const buffer = device.createBuffer({ size: 0, usage: 0 });

        const error = await device.popErrorScope();

        isnot(

          error,

          null,

          "Attempt to createBuffer with size 0 and usage 0 should generate an error."

);

        try {

          await device.popErrorScope();

          ok(false, "Should have thrown");

        } catch (ex) {

          ok(ex.name == "OperationError", "Should throw an OperationError");

};

      SimpleTest.waitForExplicitFinish();

      func()

        .catch(e => ok(false, "Unhandled exception " + e))

        .finally(() => SimpleTest.finish());

    </script>

  </body>

</html>