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참고/playwright-main/tests/page/page-wait-for-selector-1.spec.ts
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241
참고/playwright-main/tests/page/page-wait-for-selector-1.spec.ts
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/**
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* Copyright 2018 Google Inc. All rights reserved.
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* Modifications copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import type { Frame } from '@playwright/test';
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import { test as it, expect, rafraf } from './pageTest';
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import { attachFrame, detachFrame } from '../config/utils';
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async function giveItTimeToLog(frame: Frame) {
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await rafraf(frame, 2);
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}
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const addElement = (tag: string) => document.body.appendChild(document.createElement(tag));
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it('should throw on waitFor', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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let error;
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// @ts-expect-error waitFor is undocumented
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await page.waitForSelector('*', { waitFor: 'attached' }).catch(e => error = e);
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expect(error!.message).toContain('options.waitFor is not supported, did you mean options.state?');
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});
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it('should tolerate waitFor=visible', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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let error = false;
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// @ts-expect-error waitFor is undocumented
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await page.waitForSelector('*', { waitFor: 'visible' }).catch(() => error = true);
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expect(error).toBe(false);
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});
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it('should immediately resolve promise if node exists', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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const frame = page.mainFrame();
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await frame.waitForSelector('*');
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await frame.evaluate(addElement, 'div');
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await frame.waitForSelector('div', { state: 'attached' });
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});
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it('elementHandle.waitForSelector should immediately resolve if node exists', async ({ page }) => {
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await page.setContent(`<span>extra</span><div><span>target</span></div>`);
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const div = (await page.$('div'))!;
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const span = await div.waitForSelector('span', { state: 'attached' });
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expect(await span.evaluate(e => e.textContent)).toBe('target');
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});
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it('elementHandle.waitForSelector should wait', async ({ page }) => {
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await page.setContent(`<div></div>`);
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const div = (await page.$('div'))!;
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const promise = div.waitForSelector('span', { state: 'attached' });
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await div.evaluate(div => div.innerHTML = '<span>target</span>');
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const span = await promise;
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expect(await span.evaluate(e => e.textContent)).toBe('target');
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});
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it('elementHandle.waitForSelector should timeout', async ({ page }) => {
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await page.setContent(`<div></div>`);
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const div = (await page.$('div'))!;
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const error = await div.waitForSelector('span', { timeout: 100 }).catch(e => e);
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expect(error.message).toContain('Timeout 100ms exceeded.');
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});
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it('elementHandle.waitForSelector should throw on navigation', async ({ page, server }) => {
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await page.setContent(`<div></div>`);
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const div = (await page.$('div'))!;
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const promise = div.waitForSelector('span').catch(e => e);
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// Give it some time before navigating.
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for (let i = 0; i < 10; i++)
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await page.evaluate(() => 1);
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await page.goto(server.EMPTY_PAGE);
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const error = await promise;
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expect(error.message).toContain(`waiting for locator('span') to be visible`);
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});
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it('should work with removed MutationObserver', async ({ page }) => {
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await page.evaluate(() => delete (window as any).MutationObserver);
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const [handle] = await Promise.all([
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page.waitForSelector('.zombo'),
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page.setContent(`<div class='zombo'>anything</div>`),
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]);
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expect(await page.evaluate(x => x.textContent, handle)).toBe('anything');
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});
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it('should resolve promise when node is added', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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const frame = page.mainFrame();
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const watchdog = frame.waitForSelector('div', { state: 'attached' });
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await frame.evaluate(addElement, 'br');
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await frame.evaluate(addElement, 'div');
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const eHandle = await watchdog;
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const tagName = await eHandle.getProperty('tagName').then(e => e.jsonValue());
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expect(tagName).toBe('DIV');
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});
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it('should report logs while waiting for visible', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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const frame = page.mainFrame();
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const watchdog = frame.waitForSelector('div', { timeout: 5000 });
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await frame.evaluate(() => {
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const div = document.createElement('div');
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div.className = 'foo bar';
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div.id = 'mydiv';
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div.setAttribute('style', 'display: none');
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div.setAttribute('foo', '123456789012345678901234567890123456789012345678901234567890');
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div.textContent = 'abcdefghijklmnopqrstuvwyxzabcdefghijklmnopqrstuvwyxzabcdefghijklmnopqrstuvwyxz';
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document.body.appendChild(div);
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});
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await giveItTimeToLog(frame);
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await frame.evaluate(() => document.querySelector('div')!.remove());
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await giveItTimeToLog(frame);
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await frame.evaluate(() => {
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const div = document.createElement('div');
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div.className = 'another';
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div.style.display = 'none';
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document.body.appendChild(div);
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});
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await giveItTimeToLog(frame);
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const error = await watchdog.catch(e => e);
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expect(error.message).toContain(`frame.waitForSelector: Timeout 5000ms exceeded.`);
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expect(error.message).toContain(`waiting for locator(\'div\') to be visible`);
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expect(error.message).toContain(`locator resolved to hidden <div id="mydiv" class="foo bar" foo=\"123456789012345678901234567890123456789012345678901234567890\">abcdefghijklmnopqrstuvwyxzabcdefghijklmnopqrstuvw…</div>`);
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expect(error.message).toContain(`locator resolved to hidden <div class="another"></div>`);
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});
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it('should report logs while waiting for hidden', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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const frame = page.mainFrame();
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await frame.evaluate(() => {
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const div = document.createElement('div');
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div.className = 'foo bar';
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div.id = 'mydiv';
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div.textContent = 'hello';
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document.body.appendChild(div);
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});
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const watchdog = frame.waitForSelector('div', { state: 'hidden', timeout: 5000 });
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await giveItTimeToLog(frame);
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await frame.evaluate(() => {
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document.querySelector('div')!.remove();
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const div = document.createElement('div');
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div.className = 'another';
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div.textContent = 'hello';
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document.body.appendChild(div);
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});
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await giveItTimeToLog(frame);
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const error = await watchdog.catch(e => e);
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expect(error.message).toContain(`frame.waitForSelector: Timeout 5000ms exceeded.`);
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expect(error.message).toContain(`waiting for locator(\'div\') to be hidden`);
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expect(error.message).toContain(`locator resolved to visible <div id="mydiv" class="foo bar">hello</div>`);
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expect(error.message).toContain(`locator resolved to visible <div class="another">hello</div>`);
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});
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it('should report logs when the selector resolves to multiple elements', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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await page.setContent(`
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<button style="display: none; position: absolute; top: 0px; left: 0px; width: 100%;">Reset</button>
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<button>Reset</button>
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`);
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const error = await page.click('text=Reset', {
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timeout: 1000
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}).catch(e => e);
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expect(error.toString()).toContain('locator resolved to 2 elements. Proceeding with the first one: <button>Reset</button>');
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});
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it('should resolve promise when node is added in shadow dom', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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const watchdog = page.waitForSelector('span');
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await page.evaluate(() => {
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const div = document.createElement('div');
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div.attachShadow({ mode: 'open' });
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document.body.appendChild(div);
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});
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await page.waitForTimeout(100);
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await page.evaluate(() => {
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const span = document.createElement('span');
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span.textContent = 'Hello from shadow';
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document.querySelector('div')!.shadowRoot!.appendChild(span);
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});
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const handle = await watchdog;
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expect(await handle.evaluate(e => e.textContent)).toBe('Hello from shadow');
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});
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it('should work when node is added through innerHTML', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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const watchdog = page.waitForSelector('h3 div', { state: 'attached' });
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await page.evaluate(addElement, 'span');
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await page.evaluate(() => document.querySelector('span')!.innerHTML = '<h3><div></div></h3>');
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await watchdog;
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});
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it('page.waitForSelector is shortcut for main frame', async ({ page, server }) => {
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await page.goto(server.EMPTY_PAGE);
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await attachFrame(page, 'frame1', server.EMPTY_PAGE);
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const otherFrame = page.frames()[1];
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const watchdog = page.waitForSelector('div', { state: 'attached' });
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await otherFrame.evaluate(addElement, 'div');
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await page.evaluate(addElement, 'div');
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const eHandle = await watchdog;
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expect(await eHandle.ownerFrame()).toBe(page.mainFrame());
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});
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it('should run in specified frame', async ({ page, server }) => {
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await attachFrame(page, 'frame1', server.EMPTY_PAGE);
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await attachFrame(page, 'frame2', server.EMPTY_PAGE);
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const frame1 = page.frames()[1];
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const frame2 = page.frames()[2];
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const waitForSelectorPromise = frame2.waitForSelector('div', { state: 'attached' });
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await frame1.evaluate(addElement, 'div');
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await frame2.evaluate(addElement, 'div');
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const eHandle = await waitForSelectorPromise;
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expect(await eHandle.ownerFrame()).toBe(frame2);
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});
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it('should throw when frame is detached', async ({ page, server }) => {
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await attachFrame(page, 'frame1', server.EMPTY_PAGE);
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const frame = page.frames()[1];
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let waitError = null;
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const waitPromise = frame.waitForSelector('.box').catch(e => waitError = e);
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await detachFrame(page, 'frame1');
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await waitPromise;
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expect(waitError).toBeTruthy();
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expect(waitError!.message).toContain('frame.waitForSelector: Frame was detached');
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});
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