mirror of
https://github.com/microsoft/playwright.git
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517 lines
22 KiB
JavaScript
517 lines
22 KiB
JavaScript
/**
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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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const utils = require('./utils');
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const path = require('path');
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const {FFOX, CHROMIUM, WEBKIT} = utils.testOptions(browserType);
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describe('Page.evaluate', function() {
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it('should work', async({page, server}) => {
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const result = await page.evaluate(() => 7 * 3);
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expect(result).toBe(21);
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});
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it('should transfer NaN', async({page, server}) => {
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const result = await page.evaluate(a => a, NaN);
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expect(Object.is(result, NaN)).toBe(true);
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});
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it('should transfer -0', async({page, server}) => {
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const result = await page.evaluate(a => a, -0);
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expect(Object.is(result, -0)).toBe(true);
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});
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it('should transfer Infinity', async({page, server}) => {
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const result = await page.evaluate(a => a, Infinity);
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expect(Object.is(result, Infinity)).toBe(true);
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});
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it('should transfer -Infinity', async({page, server}) => {
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const result = await page.evaluate(a => a, -Infinity);
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expect(Object.is(result, -Infinity)).toBe(true);
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});
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it('should transfer arrays', async({page, server}) => {
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const result = await page.evaluate(a => a, [1, 2, 3]);
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expect(result).toEqual([1,2,3]);
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});
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it('should transfer arrays as arrays, not objects', async({page, server}) => {
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const result = await page.evaluate(a => Array.isArray(a), [1, 2, 3]);
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expect(result).toBe(true);
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});
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it('should transfer maps as empty objects', async({page, server}) => {
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const result = await page.evaluate(a => a.x.constructor.name + ' ' + JSON.stringify(a.x), {x: new Map([[1, 2]])});
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expect(result).toBe('Object {}');
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});
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it('should modify global environment', async({page}) => {
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await page.evaluate(() => window.globalVar = 123);
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expect(await page.evaluate('globalVar')).toBe(123);
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});
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it('should evaluate in the page context', async({page, server}) => {
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await page.goto(server.PREFIX + '/global-var.html');
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expect(await page.evaluate('globalVar')).toBe(123);
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});
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it('should return undefined for objects with symbols', async({page, server}) => {
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expect(await page.evaluate(() => [Symbol('foo4')])).toBe(undefined);
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expect(await page.evaluate(() => {
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const a = { };
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a[Symbol('foo4')] = 42;
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return a;
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})).toEqual({});
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expect(await page.evaluate(() => {
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return { foo: [{ a: Symbol('foo4') }] };
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})).toBe(undefined);
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});
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it('should work with function shorthands', async({page, server}) => {
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const a = {
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sum([a, b]) { return a + b; },
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async mult([a, b]) { return a * b; }
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};
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expect(await page.evaluate(a.sum, [1, 2])).toBe(3);
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expect(await page.evaluate(a.mult, [2, 4])).toBe(8);
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});
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it('should work with unicode chars', async({page, server}) => {
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const result = await page.evaluate(a => a['中文字符'], {'中文字符': 42});
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expect(result).toBe(42);
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});
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it('should throw when evaluation triggers reload', async({page, server}) => {
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let error = null;
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await page.evaluate(() => {
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location.reload();
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return new Promise(() => {});
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}).catch(e => error = e);
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expect(error.message).toContain('navigation');
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});
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it('should await promise', async({page, server}) => {
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const result = await page.evaluate(() => Promise.resolve(8 * 7));
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expect(result).toBe(56);
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});
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it('should work right after framenavigated', async({page, server}) => {
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let frameEvaluation = null;
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page.on('framenavigated', async frame => {
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frameEvaluation = frame.evaluate(() => 6 * 7);
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});
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await page.goto(server.EMPTY_PAGE);
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expect(await frameEvaluation).toBe(42);
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});
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it('should work right after a cross-origin navigation', async({page, server}) => {
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await page.goto(server.EMPTY_PAGE);
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let frameEvaluation = null;
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page.on('framenavigated', async frame => {
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frameEvaluation = frame.evaluate(() => 6 * 7);
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});
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await page.goto(server.CROSS_PROCESS_PREFIX + '/empty.html');
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expect(await frameEvaluation).toBe(42);
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});
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it('should work from-inside an exposed function', async({page, server}) => {
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// Setup inpage callback, which calls Page.evaluate
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await page.exposeFunction('callController', async function(a, b) {
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return await page.evaluate(({ a, b }) => a * b, { a, b });
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});
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const result = await page.evaluate(async function() {
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return await callController(9, 3);
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});
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expect(result).toBe(27);
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});
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it('should reject promise with exception', async({page, server}) => {
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let error = null;
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await page.evaluate(() => not_existing_object.property).catch(e => error = e);
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expect(error).toBeTruthy();
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expect(error.message).toContain('not_existing_object');
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});
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it('should support thrown strings as error messages', async({page, server}) => {
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let error = null;
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await page.evaluate(() => { throw 'qwerty'; }).catch(e => error = e);
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expect(error).toBeTruthy();
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expect(error.message).toContain('qwerty');
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});
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it('should support thrown numbers as error messages', async({page, server}) => {
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let error = null;
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await page.evaluate(() => { throw 100500; }).catch(e => error = e);
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expect(error).toBeTruthy();
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expect(error.message).toContain('100500');
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});
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it('should return complex objects', async({page, server}) => {
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const object = {foo: 'bar!'};
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const result = await page.evaluate(a => a, object);
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expect(result).not.toBe(object);
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expect(result).toEqual(object);
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});
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it('should return NaN', async({page, server}) => {
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const result = await page.evaluate(() => NaN);
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expect(Object.is(result, NaN)).toBe(true);
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});
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it('should return -0', async({page, server}) => {
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const result = await page.evaluate(() => -0);
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expect(Object.is(result, -0)).toBe(true);
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});
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it('should return Infinity', async({page, server}) => {
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const result = await page.evaluate(() => Infinity);
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expect(Object.is(result, Infinity)).toBe(true);
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});
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it('should return -Infinity', async({page, server}) => {
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const result = await page.evaluate(() => -Infinity);
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expect(Object.is(result, -Infinity)).toBe(true);
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});
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it('should throw when passed more than one parameter', async({page, server}) => {
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const expectThrow = async f => {
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let error;
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await f().catch(e => error = e);
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expect('' + error).toContain('Too many arguments');
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}
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await expectThrow(() => page.evaluate((a, b) => false, 1, 2));
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await expectThrow(() => page.evaluateHandle((a, b) => false, 1, 2));
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await expectThrow(() => page.$eval('sel', (a, b) => false, 1, 2));
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await expectThrow(() => page.$$eval('sel', (a, b) => false, 1, 2));
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await expectThrow(() => page.evaluate((a, b) => false, 1, 2));
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const frame = page.mainFrame();
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await expectThrow(() => frame.evaluate((a, b) => false, 1, 2));
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await expectThrow(() => frame.evaluateHandle((a, b) => false, 1, 2));
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await expectThrow(() => frame.$eval('sel', (a, b) => false, 1, 2));
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await expectThrow(() => frame.$$eval('sel', (a, b) => false, 1, 2));
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await expectThrow(() => frame.evaluate((a, b) => false, 1, 2));
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});
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it('should accept "undefined" as one of multiple parameters', async({page, server}) => {
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const result = await page.evaluate(({ a, b }) => Object.is(a, undefined) && Object.is(b, 'foo'), { a: undefined, b: 'foo' });
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expect(result).toBe(true);
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});
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it('should properly serialize undefined arguments', async({page}) => {
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expect(await page.evaluate(x => ({a: x}), undefined)).toEqual({});
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});
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it('should properly serialize undefined fields', async({page}) => {
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expect(await page.evaluate(() => ({a: undefined}))).toEqual({});
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});
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it('should properly serialize null arguments', async({page}) => {
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expect(await page.evaluate(x => x, null)).toEqual(null);
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});
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it('should properly serialize null fields', async({page}) => {
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expect(await page.evaluate(() => ({a: null}))).toEqual({a: null});
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});
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it('should return undefined for non-serializable objects', async({page, server}) => {
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expect(await page.evaluate(() => window)).toBe(undefined);
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});
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it('should fail for circular object', async({page, server}) => {
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const result = await page.evaluate(() => {
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const a = {};
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const b = {a};
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a.b = b;
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return a;
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});
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expect(result).toBe(undefined);
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});
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it('should be able to throw a tricky error', async({page, server}) => {
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const windowHandle = await page.evaluateHandle(() => window);
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const errorText = await windowHandle.jsonValue().catch(e => e.message);
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const error = await page.evaluate(errorText => {
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throw new Error(errorText);
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}, errorText).catch(e => e);
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expect(error.message).toContain(errorText);
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});
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it('should accept a string', async({page, server}) => {
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const result = await page.evaluate('1 + 2');
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expect(result).toBe(3);
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});
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it('should accept a string with semi colons', async({page, server}) => {
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const result = await page.evaluate('1 + 5;');
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expect(result).toBe(6);
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});
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it('should accept a string with comments', async({page, server}) => {
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const result = await page.evaluate('2 + 5;\n// do some math!');
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expect(result).toBe(7);
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});
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it('should accept element handle as an argument', async({page, server}) => {
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await page.setContent('<section>42</section>');
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const element = await page.$('section');
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const text = await page.evaluate(e => e.textContent, element);
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expect(text).toBe('42');
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});
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it('should throw if underlying element was disposed', async({page, server}) => {
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await page.setContent('<section>39</section>');
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const element = await page.$('section');
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expect(element).toBeTruthy();
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await element.dispose();
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let error = null;
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await page.evaluate(e => e.textContent, element).catch(e => error = e);
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expect(error.message).toContain('JSHandle is disposed');
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});
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it('should simulate a user gesture', async({page, server}) => {
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const result = await page.evaluate(() => {
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document.body.appendChild(document.createTextNode('test'));
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document.execCommand('selectAll');
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return document.execCommand('copy');
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});
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expect(result).toBe(true);
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});
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it('should throw a nice error after a navigation', async({page, server}) => {
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const errorPromise = page.evaluate(() => new Promise(f => window.__resolve = f)).catch(e => e);
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await Promise.all([
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page.waitForNavigation(),
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page.evaluate(() => {
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window.location.reload();
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setTimeout(() => window.__resolve(42), 1000);
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})
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]);
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const error = await errorPromise;
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expect(error.message).toContain('navigation');
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});
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it('should not throw an error when evaluation does a navigation', async({page, server}) => {
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await page.goto(server.PREFIX + '/one-style.html');
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const result = await page.evaluate(() => {
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window.location = '/empty.html';
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return [42];
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});
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expect(result).toEqual([42]);
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});
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it.slow()('should transfer 100Mb of data from page to node.js', async({page, server}) => {
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const a = await page.evaluate(() => Array(100 * 1024 * 1024 + 1).join('a'));
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expect(a.length).toBe(100 * 1024 * 1024);
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});
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it('should throw error with detailed information on exception inside promise ', async({page, server}) => {
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let error = null;
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await page.evaluate(() => new Promise(() => {
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throw new Error('Error in promise');
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})).catch(e => error = e);
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expect(error.message).toContain('Error in promise');
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});
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it('should work even when JSON is set to null', async ({ page }) => {
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await page.evaluate(() => { window.JSON.stringify = null; window.JSON = null; });
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const result = await page.evaluate(() => ({abc: 123}));
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expect(result).toEqual({abc: 123});
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});
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it('should await promise from popup', async function({page, server}) {
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await page.goto(server.EMPTY_PAGE);
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const result = await page.evaluate(() => {
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const win = window.open('about:blank');
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return new win.Promise(f => f(42));
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});
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expect(result).toBe(42);
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});
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it('should work with new Function() and CSP', async({page, server}) => {
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server.setCSP('/empty.html', 'script-src ' + server.PREFIX);
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await page.goto(server.PREFIX + '/empty.html');
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expect(await page.evaluate(() => new Function('return true')())).toBe(true);
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});
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it('should work with non-strict expressions', async({page, server}) => {
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expect(await page.evaluate(() => {
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y = 3.14;
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return y;
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})).toBe(3.14);
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});
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it('should respect use strict expression', async({page, server}) => {
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const error = await page.evaluate(() => {
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"use strict";
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variableY = 3.14;
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return variableY;
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}).catch(e => e);
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expect(error.message).toContain('variableY');
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});
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it('should not leak utility script', async({page, server}) => {
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expect(await page.evaluate(() => this === window)).toBe(true);
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});
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it('should not leak handles', async({page, server}) => {
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const error = await page.evaluate(() => handles.length).catch(e => e);
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expect(error.message).toContain(' handles');
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});
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it('should work with CSP', async({page, server}) => {
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server.setCSP('/empty.html', `script-src 'self'`);
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await page.goto(server.EMPTY_PAGE);
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expect(await page.evaluate(() => 2 + 2)).toBe(4);
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});
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it('should evaluate exception', async({page, server}) => {
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const error = await page.evaluate(() => {
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return (function functionOnStack() {
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return new Error('error message');
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})();
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});
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expect(error).toContain('Error: error message');
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expect(error).toContain('functionOnStack');
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});
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it('should evaluate exception', async({page, server}) => {
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const error = await page.evaluate(`new Error('error message')`);
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expect(error).toContain('Error: error message');
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});
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it('should evaluate date as {}', async({page}) => {
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const result = await page.evaluate(() => ({ date: new Date() }));
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expect(result).toEqual({ date: {} });
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});
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it('should jsonValue() date as {}', async({page}) => {
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const resultHandle = await page.evaluateHandle(() => ({ date: new Date() }));
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expect(await resultHandle.jsonValue()).toEqual({ date: {} });
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});
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it.fail(FFOX)('should not use toJSON when evaluating', async({page, server}) => {
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const result = await page.evaluate(() => ({ toJSON: () => 'string', data: 'data' }));
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expect(result).toEqual({ data: 'data', toJSON: {} });
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});
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it.fail(FFOX)('should not use toJSON in jsonValue', async({page, server}) => {
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const resultHandle = await page.evaluateHandle(() => ({ toJSON: () => 'string', data: 'data' }));
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expect(await resultHandle.jsonValue()).toEqual({ data: 'data', toJSON: {} });
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});
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});
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describe('Page.addInitScript', function() {
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it('should evaluate before anything else on the page', async({page, server}) => {
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await page.addInitScript(function(){
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window.injected = 123;
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});
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await page.goto(server.PREFIX + '/tamperable.html');
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expect(await page.evaluate(() => window.result)).toBe(123);
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});
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it('should work with a path', async({page, server}) => {
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await page.addInitScript({ path: path.join(__dirname, 'assets/injectedfile.js') });
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await page.goto(server.PREFIX + '/tamperable.html');
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expect(await page.evaluate(() => window.result)).toBe(123);
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});
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it('should work with content', async({page, server}) => {
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await page.addInitScript({ content: 'window.injected = 123' });
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await page.goto(server.PREFIX + '/tamperable.html');
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expect(await page.evaluate(() => window.result)).toBe(123);
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});
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it('should throw without path and content', async({page, server}) => {
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const error = await page.addInitScript({ foo: 'bar' }).catch(e => e);
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expect(error.message).toBe('Either path or content property must be present');
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});
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it('should work with browser context scripts', async({browser, server}) => {
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const context = await browser.newContext();
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await context.addInitScript(() => window.temp = 123);
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const page = await context.newPage();
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await page.addInitScript(() => window.injected = window.temp);
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await page.goto(server.PREFIX + '/tamperable.html');
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expect(await page.evaluate(() => window.result)).toBe(123);
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await context.close();
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});
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it('should work with browser context scripts with a path', async({browser, server}) => {
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const context = await browser.newContext();
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await context.addInitScript({ path: path.join(__dirname, 'assets/injectedfile.js') });
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const page = await context.newPage();
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await page.goto(server.PREFIX + '/tamperable.html');
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expect(await page.evaluate(() => window.result)).toBe(123);
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await context.close();
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});
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it('should work with browser context scripts for already created pages', async({browser, server}) => {
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const context = await browser.newContext();
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const page = await context.newPage();
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await context.addInitScript(() => window.temp = 123);
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await page.addInitScript(() => window.injected = window.temp);
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await page.goto(server.PREFIX + '/tamperable.html');
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expect(await page.evaluate(() => window.result)).toBe(123);
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await context.close();
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});
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it('should support multiple scripts', async({page, server}) => {
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await page.addInitScript(function(){
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window.script1 = 1;
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});
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await page.addInitScript(function(){
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window.script2 = 2;
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});
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await page.goto(server.PREFIX + '/tamperable.html');
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expect(await page.evaluate(() => window.script1)).toBe(1);
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expect(await page.evaluate(() => window.script2)).toBe(2);
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});
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it('should work with CSP', async({page, server}) => {
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server.setCSP('/empty.html', 'script-src ' + server.PREFIX);
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await page.addInitScript(function(){
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window.injected = 123;
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});
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await page.goto(server.PREFIX + '/empty.html');
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expect(await page.evaluate(() => window.injected)).toBe(123);
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|
|
|
// Make sure CSP works.
|
|
await page.addScriptTag({content: 'window.e = 10;'}).catch(e => void e);
|
|
expect(await page.evaluate(() => window.e)).toBe(undefined);
|
|
});
|
|
it('should work after a cross origin navigation', async({page, server}) => {
|
|
await page.goto(server.CROSS_PROCESS_PREFIX);
|
|
await page.addInitScript(function(){
|
|
window.injected = 123;
|
|
});
|
|
await page.goto(server.PREFIX + '/tamperable.html');
|
|
expect(await page.evaluate(() => window.result)).toBe(123);
|
|
});
|
|
});
|
|
|
|
describe('Frame.evaluate', function() {
|
|
it('should have different execution contexts', async({page, server}) => {
|
|
await page.goto(server.EMPTY_PAGE);
|
|
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
|
|
expect(page.frames().length).toBe(2);
|
|
await page.frames()[0].evaluate(() => window.FOO = 'foo');
|
|
await page.frames()[1].evaluate(() => window.FOO = 'bar');
|
|
expect(await page.frames()[0].evaluate(() => window.FOO)).toBe('foo');
|
|
expect(await page.frames()[1].evaluate(() => window.FOO)).toBe('bar');
|
|
});
|
|
it('should have correct execution contexts', async({page, server}) => {
|
|
await page.goto(server.PREFIX + '/frames/one-frame.html');
|
|
expect(page.frames().length).toBe(2);
|
|
expect(await page.frames()[0].evaluate(() => document.body.textContent.trim())).toBe('');
|
|
expect(await page.frames()[1].evaluate(() => document.body.textContent.trim())).toBe(`Hi, I'm frame`);
|
|
});
|
|
|
|
function expectContexts(page, count) {
|
|
if (CHROMIUM)
|
|
expect(page._delegate._mainFrameSession._contextIdToContext.size).toBe(count);
|
|
else
|
|
expect(page._delegate._contextIdToContext.size).toBe(count);
|
|
}
|
|
it('should dispose context on navigation', async({page, server}) => {
|
|
await page.goto(server.PREFIX + '/frames/one-frame.html');
|
|
expect(page.frames().length).toBe(2);
|
|
expectContexts(page, 4);
|
|
await page.goto(server.EMPTY_PAGE);
|
|
expectContexts(page, 2);
|
|
});
|
|
it('should dispose context on cross-origin navigation', async({page, server}) => {
|
|
await page.goto(server.PREFIX + '/frames/one-frame.html');
|
|
expect(page.frames().length).toBe(2);
|
|
expectContexts(page, 4);
|
|
await page.goto(server.CROSS_PROCESS_PREFIX + '/empty.html');
|
|
expectContexts(page, 2);
|
|
});
|
|
|
|
it('should execute after cross-site navigation', async({page, server}) => {
|
|
await page.goto(server.EMPTY_PAGE);
|
|
const mainFrame = page.mainFrame();
|
|
expect(await mainFrame.evaluate(() => window.location.href)).toContain('localhost');
|
|
await page.goto(server.CROSS_PROCESS_PREFIX + '/empty.html');
|
|
expect(await mainFrame.evaluate(() => window.location.href)).toContain('127');
|
|
});
|
|
it('should not allow cross-frame js handles', async({page, server}) => {
|
|
// TODO: this should actually be possible because frames script each other,
|
|
// but protocol implementations do not support this. For now, assume current
|
|
// behavior.
|
|
await page.goto(server.PREFIX + '/frames/one-frame.html');
|
|
const handle = await page.evaluateHandle(() => {
|
|
const iframe = document.querySelector('iframe');
|
|
const foo = { bar: 'baz' };
|
|
iframe.contentWindow.__foo = foo;
|
|
return foo;
|
|
});
|
|
const childFrame = page.mainFrame().childFrames()[0];
|
|
const childResult = await childFrame.evaluate(() => window.__foo);
|
|
expect(childResult).toEqual({ bar: 'baz' });
|
|
const error = await childFrame.evaluate(foo => foo.bar, handle).catch(e => e);
|
|
expect(error.message).toBe('JSHandles can be evaluated only in the context they were created!');
|
|
});
|
|
it('should allow cross-frame element handles', async({page, server}) => {
|
|
await page.goto(server.PREFIX + '/frames/one-frame.html');
|
|
const bodyHandle = await page.mainFrame().childFrames()[0].$('body');
|
|
const result = await page.evaluate(body => body.innerHTML, bodyHandle);
|
|
expect(result.trim()).toBe('<div>Hi, I\'m frame</div>');
|
|
});
|
|
it('should not allow cross-frame element handles when frames do not script each other', async({page, server}) => {
|
|
await page.goto(server.EMPTY_PAGE);
|
|
const frame = await utils.attachFrame(page, 'frame1', server.CROSS_PROCESS_PREFIX + '/empty.html');
|
|
const bodyHandle = await frame.$('body');
|
|
const error = await page.evaluate(body => body.innerHTML, bodyHandle).catch(e => e);
|
|
expect(error.message).toContain('Unable to adopt element handle from a different document');
|
|
});
|
|
});
|