playwright/test/jshandle-as-element.spec.ts

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/**
* Copyright 2018 Google Inc. All rights reserved.
* Modifications 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 './playwright.fixtures';
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it('should work', async ({page}) => {
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const aHandle = await page.evaluateHandle(() => document.body);
const element = aHandle.asElement();
expect(element).toBeTruthy();
});
it('should return null for non-elements', async ({page}) => {
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const aHandle = await page.evaluateHandle(() => 2);
const element = aHandle.asElement();
expect(element).toBeFalsy();
});
it('should return ElementHandle for TextNodes', async ({page}) => {
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await page.setContent('<div>ee!</div>');
const aHandle = await page.evaluateHandle(() => document.querySelector('div').firstChild);
const element = aHandle.asElement();
expect(element).toBeTruthy();
expect(await page.evaluate(e => e.nodeType === Node.TEXT_NODE, element)).toBeTruthy();
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});
it('should work with nullified Node', async ({page}) => {
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await page.setContent('<section>test</section>');
await page.evaluate('delete Node');
const handle = await page.evaluateHandle(() => document.querySelector('section'));
const element = handle.asElement();
expect(element).not.toBe(null);
});