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			780 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			780 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
| /**
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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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| 
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| import { attachFrame, detachFrame } from '../config/utils';
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| import { test as it, expect } from './pageTest';
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| 
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| it('should work @smoke', async ({ page }) => {
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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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| 
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| it('should transfer NaN', async ({ page }) => {
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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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| 
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| it('should transfer -0', async ({ page }) => {
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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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| 
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| it('should transfer Infinity', async ({ page }) => {
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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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| 
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| it('should transfer -Infinity', async ({ page }) => {
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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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| 
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| it('should roundtrip unserializable values', async ({ page }) => {
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|   const value = {
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|     infinity: Infinity,
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|     nInfinity: -Infinity,
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|     nZero: -0,
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|     nan: NaN,
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|   };
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|   const result = await page.evaluate(value => value, value);
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|   expect(result).toEqual(value);
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| });
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| 
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| it('should roundtrip promise to value', async ({ page }) => {
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|   {
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|     const result = await page.evaluate(value => Promise.resolve(value), null);
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|     expect(result === null).toBeTruthy();
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|   }
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|   {
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|     const result = await page.evaluate(value => Promise.resolve(value), Infinity);
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|     expect(result === Infinity).toBeTruthy();
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|   }
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|   {
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|     const result = await page.evaluate(value => Promise.resolve(value), -0);
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|     expect(result === -0).toBeTruthy();
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|   }
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|   {
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|     const result = await page.evaluate(value => Promise.resolve(value), undefined);
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|     expect(result === undefined).toBeTruthy();
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|   }
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| });
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| 
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| it('should roundtrip promise to unserializable values', async ({ page }) => {
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|   const value = {
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|     infinity: Infinity,
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|     nInfinity: -Infinity,
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|     nZero: -0,
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|     nan: NaN,
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|   };
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|   const result = await page.evaluate(value => Promise.resolve(value), value);
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|   expect(result).toEqual(value);
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| });
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| 
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| it('should transfer arrays', async ({ page }) => {
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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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| 
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| it('should transfer arrays as arrays, not objects', async ({ page }) => {
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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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| 
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| it('should transfer bigint', async ({ page }) => {
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|   expect(await page.evaluate(() => 42n)).toBe(42n);
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|   expect(await page.evaluate(a => a, 17n)).toBe(17n);
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| });
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| 
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| it('should transfer maps as empty objects', async ({ page }) => {
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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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| 
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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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| 
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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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| 
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| it('should return undefined for objects with symbols', async ({ page }) => {
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|   expect(await page.evaluate(() => [Symbol('foo4')])).toEqual([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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|   })).toEqual({ foo: [{ a: undefined }] });
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| });
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| 
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| it('should work with function shorthands', async ({ page }) => {
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|   const a = {
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|     sum([a, b]: number[]) { return a + b; },
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|     async mult([a, b]: number[]) { 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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| 
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| it('should work with unicode chars', async ({ page }) => {
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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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| 
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| it('should work with large strings', async ({ page }) => {
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|   const expected = 'x'.repeat(40000);
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|   expect(await page.evaluate(data => data, expected)).toBe(expected);
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| });
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| 
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| it('should work with large unicode strings', async ({ page, browserName, platform }) => {
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|   it.info().annotations.push({ type: 'issue', description: 'https://github.com/microsoft/playwright/issues/16367' });
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| 
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|   const expected = '🎭'.repeat(10000);
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|   expect(await page.evaluate(data => data, expected)).toBe(expected);
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| });
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| 
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| it('should throw when evaluation triggers reload', async ({ page }) => {
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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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| 
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| it('should await promise', async ({ page }) => {
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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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| 
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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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| 
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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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| 
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| it('should work from-inside an exposed function', async ({ page }) => {
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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 window['callController'](9, 3);
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|   });
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|   expect(result).toBe(27);
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| });
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| 
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| it('should reject promise with exception', async ({ page }) => {
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|   let error = null;
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|   // @ts-ignore
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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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| 
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| it('should support thrown strings as error messages', async ({ page }) => {
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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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| 
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| it('should support thrown numbers as error messages', async ({ page }) => {
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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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| 
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| it('should return complex objects', async ({ page }) => {
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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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| 
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| it('should return NaN', async ({ page }) => {
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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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| 
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| it('should return -0', async ({ page }) => {
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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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| 
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| it('should return Infinity', async ({ page }) => {
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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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| 
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| it('should return -Infinity', async ({ page }) => {
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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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| 
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| it('should work with overwritten Promise', async ({ page }) => {
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|   await page.evaluate(() => {
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|     const originalPromise = window.Promise;
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|     class Promise2 {
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|       _promise: Promise<any>;
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|       static all(arg) {
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|         return wrap(originalPromise.all(arg));
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|       }
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|       static race(arg) {
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|         return wrap(originalPromise.race(arg));
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|       }
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|       static resolve(arg) {
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|         return wrap(originalPromise.resolve(arg));
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|       }
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|       constructor(f) {
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|         this._promise = new originalPromise(f);
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|       }
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|       then(f, r) {
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|         return wrap(this._promise.then(f, r));
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|       }
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|       catch(f) {
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|         return wrap(this._promise.catch(f));
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|       }
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|       finally(f) {
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|         return wrap(this._promise.finally(f));
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|       }
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|     }
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|     const wrap = p => {
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|       const result = new Promise2(() => { });
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|       result._promise = p;
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|       return result;
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|     };
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|     // @ts-ignore;
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|     window.Promise = Promise2;
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|     window['__Promise2'] = Promise2;
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|   });
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| 
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|   // Sanity check.
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|   expect(await page.evaluate(() => {
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|     const p = Promise.all([Promise.race([]), new Promise(() => { }).then(() => { })]);
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|     return p instanceof window['__Promise2'];
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|   })).toBe(true);
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| 
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|   // Now, the new promise should be awaitable.
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|   expect(await page.evaluate(() => Promise.resolve(42))).toBe(42);
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| });
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| 
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| it('should throw when passed more than one parameter', async ({ page }) => {
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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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|   // @ts-ignore
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|   await expectThrow(() => page.evaluate((a, b) => false, 1, 2));
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|   // @ts-ignore
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|   await expectThrow(() => page.evaluateHandle((a, b) => false, 1, 2));
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|   // @ts-ignore
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|   await expectThrow(() => page.$eval('sel', (a, b) => false, 1, 2));
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|   // @ts-ignore
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|   await expectThrow(() => page.$$eval('sel', (a, b) => false, 1, 2));
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|   // @ts-ignore
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|   await expectThrow(() => page.evaluate((a, b) => false, 1, 2));
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|   const frame = page.mainFrame();
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|   // @ts-ignore
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|   await expectThrow(() => frame.evaluate((a, b) => false, 1, 2));
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|   // @ts-ignore
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|   await expectThrow(() => frame.evaluateHandle((a, b) => false, 1, 2));
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|   // @ts-ignore
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|   await expectThrow(() => frame.$eval('sel', (a, b) => false, 1, 2));
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|   // @ts-ignore
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|   await expectThrow(() => frame.$$eval('sel', (a, b) => false, 1, 2));
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|   // @ts-ignore
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|   await expectThrow(() => frame.evaluate((a, b) => false, 1, 2));
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| });
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| 
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| it('should accept "undefined" as one of multiple parameters', async ({ page }) => {
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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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| 
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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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| 
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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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| 
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| it('should return undefined properties', async ({ page }) => {
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|   const value = await page.evaluate(() => ({ a: undefined }));
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|   expect('a' in value).toBe(true);
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| });
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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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| 
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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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| 
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| it('should properly serialize PerformanceMeasure object', async ({ page }) => {
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|   expect(await page.evaluate(() => {
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|     window.performance.mark('start');
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|     window.performance.mark('end');
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|     window.performance.measure('my-measure', 'start', 'end');
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|     return performance.getEntriesByType('measure');
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|   })).toEqual([{
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|     duration: expect.any(Number),
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|     entryType: 'measure',
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|     name: 'my-measure',
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|     startTime: expect.any(Number),
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|   }]);
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| });
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| 
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| it('should properly serialize window.performance object', async ({ page }) => {
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|   expect(await page.evaluate(() => performance)).toEqual({
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|     'navigation': {
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|       'redirectCount': 0,
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|       'type': expect.any(Number),
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|     },
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|     'timeOrigin': expect.any(Number),
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|     'timing': {
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|       'connectEnd': expect.any(Number),
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|       'connectStart': expect.any(Number),
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|       'domComplete': expect.any(Number),
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|       'domContentLoadedEventEnd': expect.any(Number),
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|       'domContentLoadedEventStart': expect.any(Number),
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|       'domInteractive': expect.any(Number),
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|       'domLoading': expect.any(Number),
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|       'domainLookupEnd': expect.any(Number),
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|       'domainLookupStart': expect.any(Number),
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|       'fetchStart': expect.any(Number),
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|       'loadEventEnd': expect.any(Number),
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|       'loadEventStart': expect.any(Number),
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|       'navigationStart': expect.any(Number),
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|       'redirectEnd': expect.any(Number),
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|       'redirectStart': expect.any(Number),
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|       'requestStart': expect.any(Number),
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|       'responseEnd': expect.any(Number),
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|       'responseStart': expect.any(Number),
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|       'secureConnectionStart': expect.any(Number),
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|       'unloadEventEnd': expect.any(Number),
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|       'unloadEventStart': expect.any(Number),
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|     }
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|   });
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| });
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| 
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| it('should return undefined for non-serializable objects', async ({ page }) => {
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|   expect(await page.evaluate(() => function() {})).toBe(undefined);
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| });
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| 
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| it('should alias Window, Document and Node', async ({ page }) => {
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|   const object = await page.evaluate('[window, document, document.body]');
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|   expect(object).toEqual(['ref: <Window>', 'ref: <Document>', 'ref: <Node>']);
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| });
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| 
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| it('should work for circular object', async ({ page }) => {
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|   const result = await page.evaluate(() => {
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|     const a = {} as any;
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|     a.b = a;
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|     return a;
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|   });
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|   const a = {} as any;
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|   a.b = a;
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|   expect(result).toEqual(a);
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| });
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| 
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| it('should be able to throw a tricky error', async ({ page }) => {
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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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| 
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| it('should accept a string', async ({ page }) => {
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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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| 
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| it('should accept a string with semi colons', async ({ page }) => {
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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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| 
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| it('should accept a string with comments', async ({ page }) => {
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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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| 
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| it('should accept element handle as an argument', async ({ page }) => {
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|   await page.setContent('<section>42</section>');
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|   const element = await page.$('section');
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|   const text = await page.evaluate(e => e.textContent, element);
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|   expect(text).toBe('42');
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| });
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| 
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| it('should throw if underlying element was disposed', async ({ page }) => {
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|   await page.setContent('<section>39</section>');
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|   const element = await page.$('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('no object with guid');
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| });
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| 
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| it('should simulate a user gesture', async ({ page }) => {
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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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| 
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| it('should throw a nice error after a navigation', async ({ page }) => {
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|   const errorPromise = page.evaluate(() => new Promise(f => window['__resolve'] = f)).catch(e => e) as Promise<Error>;
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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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| 
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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.href = '/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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| 
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| it('should not throw an error when evaluation does a synchronous navigation and returns an object', async ({ page, server, browserName }) => {
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|   // It is important to be on about:blank for sync reload.
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|   const result = await page.evaluate(() => {
 | |
|     window.location.reload();
 | |
|     return { a: 42 };
 | |
|   });
 | |
|   expect(result).toEqual({ a: 42 });
 | |
| });
 | |
| 
 | |
| it('should not throw an error when evaluation does a synchronous navigation and returns undefined', async ({ page }) => {
 | |
|   // It is important to be on about:blank for sync reload.
 | |
|   const result = await page.evaluate(() => {
 | |
|     window.location.reload();
 | |
|     return undefined;
 | |
|   });
 | |
|   expect(result).toBe(undefined);
 | |
| });
 | |
| 
 | |
| it('should transfer 100Mb of data from page to node.js', async ({ mode, page }) => {
 | |
|   it.skip(mode !== 'default');
 | |
| 
 | |
|   // This is too slow with wire.
 | |
|   const a = await page.evaluate(() => Array(100 * 1024 * 1024 + 1).join('a'));
 | |
|   expect(a.length).toBe(100 * 1024 * 1024);
 | |
| });
 | |
| 
 | |
| it('should throw error with detailed information on exception inside promise ', async ({ page }) => {
 | |
|   let error = null;
 | |
|   await page.evaluate(() => new Promise(() => {
 | |
|     throw new Error('Error in promise');
 | |
|   })).catch(e => error = e);
 | |
|   expect(error.message).toContain('Error in promise');
 | |
| });
 | |
| 
 | |
| it('should work even when JSON is set to null', async ({ page }) => {
 | |
|   await page.evaluate(() => { window.JSON.stringify = null; window.JSON = null; });
 | |
|   const result = await page.evaluate(() => ({ abc: 123 }));
 | |
|   expect(result).toEqual({ abc: 123 });
 | |
| });
 | |
| 
 | |
| it('should await promise from popup', async ({ page, server }) => {
 | |
|   // Something is wrong about the way Firefox waits for the chained promise
 | |
|   await page.goto(server.EMPTY_PAGE);
 | |
|   const result = await page.evaluate(() => {
 | |
|     const win = window.open('about:blank');
 | |
|     return new win['Promise'](f => f(42));
 | |
|   });
 | |
|   expect(result).toBe(42);
 | |
| });
 | |
| 
 | |
| it('should work with new Function() and CSP', async ({ page, server }) => {
 | |
|   server.setCSP('/empty.html', 'script-src ' + server.PREFIX);
 | |
|   await page.goto(server.PREFIX + '/empty.html');
 | |
|   expect(await page.evaluate(() => new Function('return true')())).toBe(true);
 | |
| });
 | |
| 
 | |
| it('should work with non-strict expressions', async ({ page, server }) => {
 | |
|   expect(await page.evaluate(() => {
 | |
|     // @ts-ignore
 | |
|     y = 3.14;
 | |
|     // @ts-ignore
 | |
|     return y;
 | |
|   })).toBe(3.14);
 | |
| });
 | |
| 
 | |
| it('should respect use strict expression', async ({ page }) => {
 | |
|   const error = await page.evaluate(() => {
 | |
|     'use strict';
 | |
|     // @ts-ignore
 | |
|     variableY = 3.14;
 | |
|     // @ts-ignore
 | |
|     return variableY;
 | |
|   }).catch(e => e);
 | |
|   expect(error.message).toContain('variableY');
 | |
| });
 | |
| 
 | |
| it('should not leak utility script', async function({ page }) {
 | |
|   expect(await page.evaluate(() => this === window)).toBe(true);
 | |
| });
 | |
| 
 | |
| it('should not leak handles', async ({ page }) => {
 | |
|   const error = await page.evaluate('handles.length').catch(e => e);
 | |
|   expect((error as Error).message).toContain(' handles');
 | |
| });
 | |
| 
 | |
| it('should work with CSP', async ({ page, server }) => {
 | |
|   server.setCSP('/empty.html', `script-src 'self'`);
 | |
|   await page.goto(server.EMPTY_PAGE);
 | |
|   expect(await page.evaluate(() => 2 + 2)).toBe(4);
 | |
| });
 | |
| 
 | |
| it('should evaluate exception with a function on the stack', async ({ page }) => {
 | |
|   const error = await page.evaluate(() => {
 | |
|     return (function functionOnStack() {
 | |
|       return new Error('error message');
 | |
|     })();
 | |
|   });
 | |
|   expect(error).toContain('Error: error message');
 | |
|   expect(error).toContain('functionOnStack');
 | |
| });
 | |
| 
 | |
| it('should evaluate exception', async ({ page }) => {
 | |
|   const error = await page.evaluate(`new Error('error message')`);
 | |
|   expect(error).toContain('Error: error message');
 | |
| });
 | |
| 
 | |
| it('should evaluate date', async ({ page }) => {
 | |
|   const result = await page.evaluate(() => ({ date: new Date('2020-05-27T01:31:38.506Z') }));
 | |
|   expect(result).toEqual({ date: new Date('2020-05-27T01:31:38.506Z') });
 | |
| });
 | |
| 
 | |
| it('should roundtrip date', async ({ page }) => {
 | |
|   const date = new Date('2020-05-27T01:31:38.506Z');
 | |
|   const result = await page.evaluate(date => date, date);
 | |
|   expect(result.toUTCString()).toEqual(date.toUTCString());
 | |
| });
 | |
| 
 | |
| it('should roundtrip regex', async ({ page }) => {
 | |
|   const regex = /hello/im;
 | |
|   const result = await page.evaluate(regex => regex, regex);
 | |
|   expect(result.toString()).toEqual(regex.toString());
 | |
| });
 | |
| 
 | |
| it('should jsonValue() date', async ({ page }) => {
 | |
|   const resultHandle = await page.evaluateHandle(() => ({ date: new Date('2020-05-27T01:31:38.506Z') }));
 | |
|   expect(await resultHandle.jsonValue()).toEqual({ date: new Date('2020-05-27T01:31:38.506Z') });
 | |
| });
 | |
| 
 | |
| it('should evaluate url', async ({ page }) => {
 | |
|   const result = await page.evaluate(() => ({ url: new URL('https://example.com') }));
 | |
|   expect(result).toEqual({ url: new URL('https://example.com') });
 | |
| });
 | |
| 
 | |
| it('should roundtrip url', async ({ page }) => {
 | |
|   const url = new URL('https://example.com');
 | |
|   const result = await page.evaluate(url => url, url);
 | |
|   expect(result.toString()).toEqual(url.toString());
 | |
| });
 | |
| 
 | |
| it('should jsonValue() url', async ({ page }) => {
 | |
|   const resultHandle = await page.evaluateHandle(() => ({ url: new URL('https://example.com') }));
 | |
|   expect(await resultHandle.jsonValue()).toEqual({ url: new URL('https://example.com') });
 | |
| });
 | |
| 
 | |
| it('should not use toJSON when evaluating', async ({ page }) => {
 | |
|   const result = await page.evaluate(() => ({ toJSON: () => 'string', data: 'data' }));
 | |
|   expect(result).toEqual({ data: 'data', toJSON: {} });
 | |
| });
 | |
| 
 | |
| it('should not use Array.prototype.toJSON when evaluating', async ({ page }) => {
 | |
|   const result = await page.evaluate(() => {
 | |
|     (Array.prototype as any).toJSON = () => 'busted';
 | |
|     return [1, 2, 3];
 | |
|   });
 | |
|   expect(result).toEqual([1, 2, 3]);
 | |
| });
 | |
| 
 | |
| it('should not add a toJSON property to newly created Arrays after evaluation', async ({ page, browserName }) => {
 | |
|   await page.evaluate(() => []);
 | |
|   const hasToJSONProperty = await page.evaluate(() => 'toJSON' in []);
 | |
|   expect(hasToJSONProperty).toEqual(false);
 | |
| });
 | |
| 
 | |
| it('should not use toJSON in jsonValue', async ({ page }) => {
 | |
|   const resultHandle = await page.evaluateHandle(() => ({ toJSON: () => 'string', data: 'data' }));
 | |
|   expect(await resultHandle.jsonValue()).toEqual({ data: 'data', toJSON: {} });
 | |
| });
 | |
| 
 | |
| it('should ignore buggy toJSON', async ({ page }) => {
 | |
|   const result = await page.evaluate(() => {
 | |
|     class Foo {
 | |
|       toJSON() {
 | |
|         throw new Error('Bad');
 | |
|       }
 | |
|     }
 | |
|     class Bar {
 | |
|       get toJSON() {
 | |
|         throw new Error('Also bad');
 | |
|       }
 | |
|     }
 | |
|     return { foo: new Foo(), bar: new Bar() };
 | |
|   });
 | |
|   expect(result).toEqual({ foo: {}, bar: {} });
 | |
| });
 | |
| 
 | |
| it('should not expose the injected script export', async ({ page }) => {
 | |
|   expect(await page.evaluate('typeof pwExport === "undefined"')).toBe(true);
 | |
| });
 | |
| 
 | |
| it('should throw when frame is detached', async ({ page, server }) => {
 | |
|   await attachFrame(page, 'frame1', server.EMPTY_PAGE);
 | |
|   const frame = page.frames()[1];
 | |
|   const promise = frame.evaluate(() => new Promise<void>(() => {})).catch(e => e);
 | |
|   await detachFrame(page, 'frame1');
 | |
|   const error = await promise;
 | |
|   expect(error).toBeTruthy();
 | |
|   expect(error.message).toMatch(/frame.evaluate: (Frame was detached|Execution context was destroyed)/);
 | |
| });
 | |
| 
 | |
| it('should work with overridden Object.defineProperty', async ({ page, server }) => {
 | |
|   server.setRoute('/test', (req, res) => {
 | |
|     res.writeHead(200, {
 | |
|       'content-type': 'text/html',
 | |
|     });
 | |
|     res.end(`<script>
 | |
|     Object.create = null;
 | |
|     Object.defineProperty = null;
 | |
|     Object.getOwnPropertyDescriptor = null;
 | |
|     Object.getOwnPropertyNames = null;
 | |
|     Object.getPrototypeOf = null;
 | |
|     Object.prototype.hasOwnProperty = null;
 | |
|     </script>`);
 | |
|   });
 | |
|   await page.goto(server.PREFIX + '/test');
 | |
|   expect(await page.evaluate('1+2')).toBe(3);
 | |
| });
 | |
| 
 | |
| it('should work with busted Array.prototype.map/push', async ({ page, server }) => {
 | |
|   server.setRoute('/test', (req, res) => {
 | |
|     res.writeHead(200, {
 | |
|       'content-type': 'text/html',
 | |
|     });
 | |
|     res.end(`<script>
 | |
|       Array.prototype.map = null;
 | |
|       Array.prototype.push = null;
 | |
|     </script>`);
 | |
|   });
 | |
|   await page.goto(server.PREFIX + '/test');
 | |
|   expect(await page.evaluate('1+2')).toBe(3);
 | |
|   expect(await ((await page.evaluateHandle('1+2')).jsonValue())).toBe(3);
 | |
| });
 | |
| 
 | |
| it('should work with overridden globalThis.Window/Document/Node', async ({ page, server }) => {
 | |
|   const testCases = [
 | |
|     // @ts-ignore
 | |
|     () => globalThis.Window = {},
 | |
|     // @ts-ignore
 | |
|     () => globalThis.Document = {},
 | |
|     // @ts-ignore
 | |
|     () => globalThis.Node = {},
 | |
|     () => globalThis.Window = null,
 | |
|     () => globalThis.Document = null,
 | |
|     () => globalThis.Node = null,
 | |
|   ];
 | |
|   for (const testCase of testCases) {
 | |
|     await it.step(testCase.toString(), async () => {
 | |
|       await page.goto(server.EMPTY_PAGE);
 | |
|       await page.evaluate(testCase);
 | |
|       expect(await page.evaluate('1+2')).toBe(3);
 | |
|       expect(await page.evaluate(() => ['foo'])).toEqual(['foo']);
 | |
|     });
 | |
|   }
 | |
| });
 | |
| 
 | |
| it('should work with overridden URL/Date/RegExp', async ({ page, server }) => {
 | |
|   it.info().annotations.push({ type: 'issue', description: 'https://github.com/microsoft/playwright/issues/21109' });
 | |
|   const testCases = [
 | |
|     // @ts-ignore
 | |
|     () => globalThis.URL = 'foo',
 | |
|     // @ts-ignore
 | |
|     () => globalThis.RegExp = 'foo',
 | |
|     // @ts-ignore
 | |
|     () => globalThis.Date = 'foo',
 | |
|   ];
 | |
|   for (const testCase of testCases) {
 | |
|     await it.step(testCase.toString(), async () => {
 | |
|       await page.goto(server.EMPTY_PAGE);
 | |
|       await page.evaluate(testCase);
 | |
|       expect(await page.evaluate('1+2')).toBe(3);
 | |
|       expect(await page.evaluate(() => ({ 'a': 2023 }))).toEqual({ 'a': 2023 });
 | |
|     });
 | |
|   }
 | |
| });
 | |
| 
 | |
| it('should expose utilityScript', async ({ page }) => {
 | |
|   const result = await (page.mainFrame() as any)._evaluateExposeUtilityScript((utilityScript, { a }) => {
 | |
|     return { utils: 'parseEvaluationResultValue' in utilityScript, a };
 | |
|   }, { a: 42 });
 | |
|   expect(result).toEqual({
 | |
|     a: 42,
 | |
|     utils: true,
 | |
|   });
 | |
| });
 | |
| 
 | |
| it('should work with Array.from/map', async ({ page }) => {
 | |
|   it.info().annotations.push({ type: 'issue', description: 'https://github.com/microsoft/playwright/issues/28520' });
 | |
|   expect(await page.evaluate(() => {
 | |
|     const r = (str, amount) => Array.from(Array(amount)).map(() => str).join('');
 | |
|     return r('([a-f0-9]{2})', 3);
 | |
|   })).toBe('([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})');
 | |
| });
 | 
