playwright/tests/page/page-object-count.spec.ts

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/**
* Copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { test, expect } from './pageTest';
test('should count objects', async ({ page, browserName }) => {
test.skip(browserName !== 'chromium');
await page.setContent('<button>Submit</button>');
await page.evaluate(() => document.querySelectorAll('button'));
const proto = await page.evaluateHandle(() => HTMLButtonElement.prototype);
expect(await (proto as any)._objectCount()).toBe(1);
});