enumeration.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/response-constraint/regex/enumeration.tentative.https.window.html - WPT Dashboard Interop Dashboard

// META: title=Language Model Response Regex - Enumeration

// 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();

  const session = await createLanguageModel();

  const regex = /^(Red|Green|Blue)$/;

  const response = await session.prompt(

      'Extract the color from "The sky was clear and blue"',

      {responseConstraint: regex});

  assert_true(typeof response === 'string');

  assert_true(regex.test(response),

              `Response "${response}" should match regex ${regex}`);

}, 'Prompt should work with an enumeration regex constraint.');