array-buffer-view-offset.tentative.https.window.js

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /ai/language-model/prompt/multimodal/image/array-buffer-view-offset.tentative.https.window.html - WPT Dashboard Interop Dashboard

// META: title=Language Model Prompt Multimodal Image - ArrayBufferView Offset

// META: script=/resources/testdriver.js

// META: script=/resources/testdriver-vendor.js

// META: script=../../../../resources/util.js

// META: timeout=long

'use strict';

promise_test(async (t) => {

  await ensureLanguageModel(kImageOptions);

  const imageData = await fetch(kValidImagePath);

  const session = await createLanguageModel(kImageOptions);

  const buffer = await imageData.arrayBuffer();

  // Add 256 bytes of padding in front of the image data.

  const bufferView = new Uint8Array(buffer);

  const newBufferArray = new ArrayBuffer(256 + buffer.byteLength);

  const imageView = new Uint8Array(newBufferArray, 256, buffer.byteLength);

  imageView.set(bufferView);

  const result = await session.prompt(

      messageWithContent(kImagePrompt, 'image', imageView));

  assert_regexp_match(result, kValidImageRegex);

  // Offset causes 56 bytes of blank data, resulting in a decoding error.

  await promise_rejects_dom(

      t, 'InvalidStateError',

      session.prompt(messageWithContent(

          kImagePrompt, 'image',

          new Uint8Array(newBufferArray, 200, buffer.byteLength))));

}, 'Prompt with ArrayBufferView image content with an offset.');