90df69cf77
This patch teaches page.evaluate to do 1 hop instead of 2 hops. As a result, things such as `page.select` will not throw an unfortunate exception when they schedule a navigation. Fix #4537
291 lines
12 KiB
JavaScript
291 lines
12 KiB
JavaScript
/**
|
|
* Copyright 2018 Google Inc. All rights reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
const utils = require('./utils');
|
|
|
|
let asyncawait = true;
|
|
try {
|
|
new Function('async function foo() {await 1}');
|
|
} catch (e) {
|
|
asyncawait = false;
|
|
}
|
|
|
|
const bigint = typeof BigInt !== 'undefined';
|
|
|
|
module.exports.addTests = function({testRunner, expect}) {
|
|
const {describe, xdescribe, fdescribe} = testRunner;
|
|
const {it, fit, xit, it_fails_ffox} = testRunner;
|
|
const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
|
|
|
|
describe('Page.evaluate', function() {
|
|
it('should work', async({page, server}) => {
|
|
const result = await page.evaluate(() => 7 * 3);
|
|
expect(result).toBe(21);
|
|
});
|
|
(bigint ? it : xit)('should transfer BigInt', async({page, server}) => {
|
|
const result = await page.evaluate(a => a, BigInt(42));
|
|
expect(result).toBe(BigInt(42));
|
|
});
|
|
it('should transfer NaN', async({page, server}) => {
|
|
const result = await page.evaluate(a => a, NaN);
|
|
expect(Object.is(result, NaN)).toBe(true);
|
|
});
|
|
it('should transfer -0', async({page, server}) => {
|
|
const result = await page.evaluate(a => a, -0);
|
|
expect(Object.is(result, -0)).toBe(true);
|
|
});
|
|
it('should transfer Infinity', async({page, server}) => {
|
|
const result = await page.evaluate(a => a, Infinity);
|
|
expect(Object.is(result, Infinity)).toBe(true);
|
|
});
|
|
it('should transfer -Infinity', async({page, server}) => {
|
|
const result = await page.evaluate(a => a, -Infinity);
|
|
expect(Object.is(result, -Infinity)).toBe(true);
|
|
});
|
|
it('should transfer arrays', async({page, server}) => {
|
|
const result = await page.evaluate(a => a, [1, 2, 3]);
|
|
expect(result).toEqual([1,2,3]);
|
|
});
|
|
it('should transfer arrays as arrays, not objects', async({page, server}) => {
|
|
const result = await page.evaluate(a => Array.isArray(a), [1, 2, 3]);
|
|
expect(result).toBe(true);
|
|
});
|
|
it('should modify global environment', async({page}) => {
|
|
await page.evaluate(() => window.globalVar = 123);
|
|
expect(await page.evaluate('globalVar')).toBe(123);
|
|
});
|
|
it('should evaluate in the page context', async({page, server}) => {
|
|
await page.goto(server.PREFIX + '/global-var.html');
|
|
expect(await page.evaluate('globalVar')).toBe(123);
|
|
});
|
|
it_fails_ffox('should return undefined for objects with symbols', async({page, server}) => {
|
|
expect(await page.evaluate(() => [Symbol('foo4')])).toBe(undefined);
|
|
});
|
|
(asyncawait ? it : xit)('should work with function shorthands', async({page, server}) => {
|
|
// trick node6 transpiler to not touch our object.
|
|
// TODO(lushnikov): remove eval once Node6 is dropped.
|
|
const a = eval(`({
|
|
sum(a, b) { return a + b; },
|
|
|
|
async mult(a, b) { return a * b; }
|
|
})`);
|
|
expect(await page.evaluate(a.sum, 1, 2)).toBe(3);
|
|
expect(await page.evaluate(a.mult, 2, 4)).toBe(8);
|
|
});
|
|
it('should work with unicode chars', async({page, server}) => {
|
|
const result = await page.evaluate(a => a['中文字符'], {'中文字符': 42});
|
|
expect(result).toBe(42);
|
|
});
|
|
it('should throw when evaluation triggers reload', async({page, server}) => {
|
|
let error = null;
|
|
await page.evaluate(() => {
|
|
location.reload();
|
|
return new Promise(() => {});
|
|
}).catch(e => error = e);
|
|
expect(error.message).toContain('Protocol error');
|
|
});
|
|
it('should await promise', async({page, server}) => {
|
|
const result = await page.evaluate(() => Promise.resolve(8 * 7));
|
|
expect(result).toBe(56);
|
|
});
|
|
it('should work right after framenavigated', async({page, server}) => {
|
|
let frameEvaluation = null;
|
|
page.on('framenavigated', async frame => {
|
|
frameEvaluation = frame.evaluate(() => 6 * 7);
|
|
});
|
|
await page.goto(server.EMPTY_PAGE);
|
|
expect(await frameEvaluation).toBe(42);
|
|
});
|
|
it('should work from-inside an exposed function', async({page, server}) => {
|
|
// Setup inpage callback, which calls Page.evaluate
|
|
await page.exposeFunction('callController', async function(a, b) {
|
|
return await page.evaluate((a, b) => a * b, a, b);
|
|
});
|
|
const result = await page.evaluate(async function() {
|
|
return await callController(9, 3);
|
|
});
|
|
expect(result).toBe(27);
|
|
});
|
|
it('should reject promise with exception', async({page, server}) => {
|
|
let error = null;
|
|
await page.evaluate(() => not.existing.object.property).catch(e => error = e);
|
|
expect(error).toBeTruthy();
|
|
expect(error.message).toContain('not is not defined');
|
|
});
|
|
it('should support thrown strings as error messages', async({page, server}) => {
|
|
let error = null;
|
|
await page.evaluate(() => { throw 'qwerty'; }).catch(e => error = e);
|
|
expect(error).toBeTruthy();
|
|
expect(error.message).toContain('qwerty');
|
|
});
|
|
it('should support thrown numbers as error messages', async({page, server}) => {
|
|
let error = null;
|
|
await page.evaluate(() => { throw 100500; }).catch(e => error = e);
|
|
expect(error).toBeTruthy();
|
|
expect(error.message).toContain('100500');
|
|
});
|
|
it('should return complex objects', async({page, server}) => {
|
|
const object = {foo: 'bar!'};
|
|
const result = await page.evaluate(a => a, object);
|
|
expect(result).not.toBe(object);
|
|
expect(result).toEqual(object);
|
|
});
|
|
(bigint ? it : xit)('should return BigInt', async({page, server}) => {
|
|
const result = await page.evaluate(() => BigInt(42));
|
|
expect(result).toBe(BigInt(42));
|
|
});
|
|
it('should return NaN', async({page, server}) => {
|
|
const result = await page.evaluate(() => NaN);
|
|
expect(Object.is(result, NaN)).toBe(true);
|
|
});
|
|
it('should return -0', async({page, server}) => {
|
|
const result = await page.evaluate(() => -0);
|
|
expect(Object.is(result, -0)).toBe(true);
|
|
});
|
|
it('should return Infinity', async({page, server}) => {
|
|
const result = await page.evaluate(() => Infinity);
|
|
expect(Object.is(result, Infinity)).toBe(true);
|
|
});
|
|
it('should return -Infinity', async({page, server}) => {
|
|
const result = await page.evaluate(() => -Infinity);
|
|
expect(Object.is(result, -Infinity)).toBe(true);
|
|
});
|
|
it('should accept "undefined" as one of multiple parameters', async({page, server}) => {
|
|
const result = await page.evaluate((a, b) => Object.is(a, undefined) && Object.is(b, 'foo'), undefined, 'foo');
|
|
expect(result).toBe(true);
|
|
});
|
|
it('should properly serialize null fields', async({page}) => {
|
|
expect(await page.evaluate(() => ({a: undefined}))).toEqual({});
|
|
});
|
|
it('should return undefined for non-serializable objects', async({page, server}) => {
|
|
expect(await page.evaluate(() => window)).toBe(undefined);
|
|
});
|
|
it('should fail for circular object', async({page, server}) => {
|
|
const result = await page.evaluate(() => {
|
|
const a = {};
|
|
const b = {a};
|
|
a.b = b;
|
|
return a;
|
|
});
|
|
expect(result).toBe(undefined);
|
|
});
|
|
it('should accept a string', async({page, server}) => {
|
|
const result = await page.evaluate('1 + 2');
|
|
expect(result).toBe(3);
|
|
});
|
|
it('should accept a string with semi colons', async({page, server}) => {
|
|
const result = await page.evaluate('1 + 5;');
|
|
expect(result).toBe(6);
|
|
});
|
|
it('should accept a string with comments', async({page, server}) => {
|
|
const result = await page.evaluate('2 + 5;\n// do some math!');
|
|
expect(result).toBe(7);
|
|
});
|
|
it('should accept element handle as an argument', async({page, server}) => {
|
|
await page.setContent('<section>42</section>');
|
|
const element = await page.$('section');
|
|
const text = await page.evaluate(e => e.textContent, element);
|
|
expect(text).toBe('42');
|
|
});
|
|
it('should throw if underlying element was disposed', async({page, server}) => {
|
|
await page.setContent('<section>39</section>');
|
|
const element = await page.$('section');
|
|
expect(element).toBeTruthy();
|
|
await element.dispose();
|
|
let error = null;
|
|
await page.evaluate(e => e.textContent, element).catch(e => error = e);
|
|
expect(error.message).toContain('JSHandle is disposed');
|
|
});
|
|
it('should throw if elementHandles are from other frames', async({page, server}) => {
|
|
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
|
|
const bodyHandle = await page.frames()[1].$('body');
|
|
let error = null;
|
|
await page.evaluate(body => body.innerHTML, bodyHandle).catch(e => error = e);
|
|
expect(error).toBeTruthy();
|
|
expect(error.message).toContain('JSHandles can be evaluated only in the context they were created');
|
|
});
|
|
it('should simulate a user gesture', async({page, server}) => {
|
|
const result = await page.evaluate(() => document.execCommand('copy'));
|
|
expect(result).toBe(true);
|
|
});
|
|
it('should throw a nice error after a navigation', async({page, server}) => {
|
|
const executionContext = await page.mainFrame().executionContext();
|
|
|
|
await Promise.all([
|
|
page.waitForNavigation(),
|
|
executionContext.evaluate(() => window.location.reload())
|
|
]);
|
|
const error = await executionContext.evaluate(() => null).catch(e => e);
|
|
expect(error.message).toContain('navigation');
|
|
});
|
|
it_fails_ffox('should not throw an error when evaluation does a navigation', async({page, server}) => {
|
|
await page.goto(server.PREFIX + '/one-style.html');
|
|
const result = await page.evaluate(() => {
|
|
window.location = '/empty.html';
|
|
return [42];
|
|
});
|
|
expect(result).toEqual([42]);
|
|
});
|
|
});
|
|
|
|
describe('Page.evaluateOnNewDocument', function() {
|
|
it('should evaluate before anything else on the page', async({page, server}) => {
|
|
await page.evaluateOnNewDocument(function(){
|
|
window.injected = 123;
|
|
});
|
|
await page.goto(server.PREFIX + '/tamperable.html');
|
|
expect(await page.evaluate(() => window.result)).toBe(123);
|
|
});
|
|
it('should work with CSP', async({page, server}) => {
|
|
server.setCSP('/empty.html', 'script-src ' + server.PREFIX);
|
|
await page.evaluateOnNewDocument(function(){
|
|
window.injected = 123;
|
|
});
|
|
await page.goto(server.PREFIX + '/empty.html');
|
|
expect(await page.evaluate(() => window.injected)).toBe(123);
|
|
|
|
// Make sure CSP works.
|
|
await page.addScriptTag({content: 'window.e = 10;'}).catch(e => void e);
|
|
expect(await page.evaluate(() => window.e)).toBe(undefined);
|
|
});
|
|
});
|
|
|
|
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`);
|
|
});
|
|
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');
|
|
});
|
|
});
|
|
};
|