File: test_queue_write_invalid_device.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();

        // Destroy the device, making it invalid.
        device.destroy();

        // Creating a buffer on an invalid device will create an invalid
        // buffer.
        const buffer = device.createBuffer({
          size: 16,
          usage:
            GPUBufferUsage.COPY_DST |
            GPUBufferUsage.COPY_SRC |
            GPUBufferUsage.VERTEX,
        });
        const arrayBuf = new ArrayBuffer(16);
        new Int32Array(arrayBuf).fill(5);

        // Writing to an invalid buffer should not throw an error.
        device.queue.writeBuffer(buffer, 0, arrayBuf, 0);
      };

      SimpleTest.waitForExplicitFinish();
      func()
        .catch(e => ok(false, "Unhandled exception " + e))
        .finally(() => SimpleTest.finish());
    </script>
  </body>
</html>