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			501 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			501 lines
		
	
	
		
			23 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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module.exports.describe = function({testRunner, expect, product, playwright, FFOX, CHROME, WEBKIT}) {
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  const {describe, xdescribe, fdescribe} = testRunner;
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  const {it, fit, xit} = testRunner;
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  const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
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  describe('Page.waitFor', function() {
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    it('should wait for selector', async({page, server}) => {
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      let found = false;
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      const waitFor = page.waitFor('div').then(() => found = true);
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      await page.goto(server.EMPTY_PAGE);
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      expect(found).toBe(false);
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      await page.goto(server.PREFIX + '/grid.html');
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      await waitFor;
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      expect(found).toBe(true);
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    });
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    it('should wait for an xpath', async({page, server}) => {
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      let found = false;
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      const waitFor = page.waitFor('//div').then(() => found = true);
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      await page.goto(server.EMPTY_PAGE);
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      expect(found).toBe(false);
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      await page.goto(server.PREFIX + '/grid.html');
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      await waitFor;
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      expect(found).toBe(true);
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    });
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    it('should not allow you to select an element with single slash xpath', async({page, server}) => {
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      await page.setContent(`<div>some text</div>`);
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      let error = null;
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      await page.waitFor('/html/body/div').catch(e => error = e);
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      expect(error).toBeTruthy();
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    });
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    it('should timeout', async({page, server}) => {
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      const startTime = Date.now();
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      const timeout = 42;
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      await page.waitFor(timeout);
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      expect(Date.now() - startTime).not.toBeLessThan(timeout / 2);
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    });
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    it('should work with multiline body', async({page, server}) => {
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      const result = await page.waitForFunction(`
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        (() => true)()
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      `);
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      expect(await result.jsonValue()).toBe(true);
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    });
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    it('should wait for predicate', async({page, server}) => {
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      await Promise.all([
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        page.waitFor(() => window.innerWidth < 130), // Windows doesn't like windows below 120px wide
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        page.setViewport({width: 10, height: 10}),
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      ]);
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    });
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    it('should throw when unknown type', async({page, server}) => {
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      let error = null;
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      await page.waitFor({foo: 'bar'}).catch(e => error = e);
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      expect(error.message).toContain('Unsupported target type');
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    });
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    it('should wait for predicate with arguments', async({page, server}) => {
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      await page.waitFor((arg1, arg2) => arg1 !== arg2, {}, 1, 2);
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    });
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  });
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  describe('Frame.waitForFunction', function() {
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    it('should accept a string', async({page, server}) => {
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      const watchdog = page.waitForFunction('window.__FOO === 1');
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      await page.evaluate(() => window.__FOO = 1);
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      await watchdog;
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    });
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    it('should work when resolved right before execution context disposal', async({page, server}) => {
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      // FIXME: implement Page.addScriptToEvaluateOnNewDocument in WebKit.
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      await page.evaluateOnNewDocument(() => window.__RELOADED = true);
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      await page.waitForFunction(() => {
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        if (!window.__RELOADED)
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          window.location.reload();
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        return true;
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      });
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    });
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    it('should poll on interval', async({page, server}) => {
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      const polling = 100;
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      const timeDelta = await page.waitForFunction(() => {
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        if (!window.__startTime) {
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          window.__startTime = Date.now();
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          return false;
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        }
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        return Date.now() - window.__startTime;
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      }, {polling});
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      expect(timeDelta).not.toBeLessThan(polling);
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    });
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    it('should poll on mutation', async({page, server}) => {
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      let success = false;
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      const watchdog = page.waitForFunction(() => window.__FOO === 'hit', {polling: 'mutation'})
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          .then(() => success = true);
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      await page.evaluate(() => window.__FOO = 'hit');
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      expect(success).toBe(false);
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      await page.evaluate(() => document.body.appendChild(document.createElement('div')));
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      await watchdog;
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    });
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    it('should poll on raf', async({page, server}) => {
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      const watchdog = page.waitForFunction(() => window.__FOO === 'hit', {polling: 'raf'});
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      await page.evaluate(() => window.__FOO = 'hit');
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      await watchdog;
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    });
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    it.skip(FFOX)('should work with strict CSP policy', async({page, server}) => {
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      server.setCSP('/empty.html', 'script-src ' + server.PREFIX);
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      await page.goto(server.EMPTY_PAGE);
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      let error = null;
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      await Promise.all([
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        page.waitForFunction(() => window.__FOO === 'hit', {polling: 'raf'}).catch(e => error = e),
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        page.evaluate(() => window.__FOO = 'hit')
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      ]);
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      expect(error).toBe(null);
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    });
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    it('should throw on bad polling value', async({page, server}) => {
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      let error = null;
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      try {
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        await page.waitForFunction(() => !!document.body, {polling: 'unknown'});
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      } catch (e) {
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        error = e;
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      }
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      expect(error).toBeTruthy();
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      expect(error.message).toContain('polling');
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    });
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    it('should throw negative polling interval', async({page, server}) => {
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      let error = null;
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      try {
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        await page.waitForFunction(() => !!document.body, {polling: -10});
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      } catch (e) {
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        error = e;
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      }
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      expect(error).toBeTruthy();
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      expect(error.message).toContain('Cannot poll with non-positive interval');
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    });
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    it('should return the success value as a JSHandle', async({page}) => {
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      expect(await (await page.waitForFunction(() => 5)).jsonValue()).toBe(5);
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    });
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    it('should return the window as a success value', async({ page }) => {
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      expect(await page.waitForFunction(() => window)).toBeTruthy();
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    });
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    it('should accept ElementHandle arguments', async({page}) => {
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      await page.setContent('<div></div>');
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      const div = await page.$('div');
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      let resolved = false;
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      const waitForFunction = page.waitForFunction(element => !element.parentElement, {}, div).then(() => resolved = true);
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      expect(resolved).toBe(false);
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      await page.evaluate(element => element.remove(), div);
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      await waitForFunction;
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    });
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    it('should respect timeout', async({page}) => {
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      let error = null;
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      await page.waitForFunction('false', {timeout: 10}).catch(e => error = e);
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      expect(error).toBeTruthy();
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      expect(error.message).toContain('waiting for function failed: timeout');
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      expect(error).toBeInstanceOf(playwright.errors.TimeoutError);
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    });
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    it('should respect default timeout', async({page}) => {
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      page.setDefaultTimeout(1);
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      let error = null;
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      await page.waitForFunction('false').catch(e => error = e);
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      expect(error).toBeInstanceOf(playwright.errors.TimeoutError);
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      expect(error.message).toContain('waiting for function failed: timeout');
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    });
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    it('should disable timeout when its set to 0', async({page}) => {
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      const watchdog = page.waitForFunction(() => {
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        window.__counter = (window.__counter || 0) + 1;
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        return window.__injected;
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      }, {timeout: 0, polling: 10});
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      await page.waitForFunction(() => window.__counter > 10);
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      await page.evaluate(() => window.__injected = true);
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      await watchdog;
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    });
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    it('should survive cross-process navigation', async({page, server}) => {
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      let fooFound = false;
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      const waitForFunction = page.waitForFunction('window.__FOO === 1').then(() => fooFound = true);
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      await page.goto(server.EMPTY_PAGE);
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      expect(fooFound).toBe(false);
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      await page.reload();
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      expect(fooFound).toBe(false);
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      await page.goto(server.CROSS_PROCESS_PREFIX + '/grid.html');
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      expect(fooFound).toBe(false);
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      await page.evaluate(() => window.__FOO = 1);
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      await waitForFunction;
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      expect(fooFound).toBe(true);
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    });
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    it('should survive navigations', async({page, server}) => {
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      const watchdog = page.waitForFunction(() => window.__done);
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      await page.goto(server.EMPTY_PAGE);
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      await page.goto(server.PREFIX + '/consolelog.html');
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      await page.evaluate(() => window.__done = true);
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      await watchdog;
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    });
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  });
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  describe('Frame.$wait', function() {
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    it('should accept arguments', async({page, server}) => {
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      await page.setContent('<div></div>');
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      const result = await page.$wait('div', (e, foo, bar) => e.nodeName + foo + bar, {}, 'foo1', 'bar2');
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      expect(await result.jsonValue()).toBe('DIVfoo1bar2');
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    });
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    it('should query selector constantly', async({page, server}) => {
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      await page.setContent('<div></div>');
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      let done = null;
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      const resultPromise = page.$wait('span', e => e).then(r => done = r);
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      expect(done).toBe(null);
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      await page.setContent('<section></section>');
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      expect(done).toBe(null);
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      await page.setContent('<span>text</span>');
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      await resultPromise;
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      expect(done).not.toBe(null);
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      expect(await done.evaluate(e => e.textContent)).toBe('text');
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    });
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    it('should be able to wait for removal', async({page}) => {
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      await page.setContent('<div></div>');
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      let done = null;
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      const resultPromise = page.$wait('div', e => !e).then(r => done = r);
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      expect(done).toBe(null);
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      await page.setContent('<section></section>');
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      await resultPromise;
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      expect(done).not.toBe(null);
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      expect(await done.jsonValue()).toBe(true);
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    });
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  });
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  describe('Frame.waitForSelector', function() {
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    const addElement = tag => document.body.appendChild(document.createElement(tag));
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    it('should immediately resolve promise if node exists', async({page, server}) => {
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      await page.goto(server.EMPTY_PAGE);
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      const frame = page.mainFrame();
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      await frame.waitForSelector('*');
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      await frame.evaluate(addElement, 'div');
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      await frame.waitForSelector('div');
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    });
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    it.skip(FFOX)('should work with removed MutationObserver', async({page, server}) => {
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      await page.evaluate(() => delete window.MutationObserver);
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      const [handle] = await Promise.all([
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        page.waitForSelector('.zombo'),
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        page.setContent(`<div class='zombo'>anything</div>`),
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      ]);
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      expect(await page.evaluate(x => x.textContent, handle)).toBe('anything');
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    });
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    it('should resolve promise when node is added', async({page, server}) => {
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      await page.goto(server.EMPTY_PAGE);
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      const frame = page.mainFrame();
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      const watchdog = frame.waitForSelector('div');
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      await frame.evaluate(addElement, 'br');
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      await frame.evaluate(addElement, 'div');
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      const eHandle = await watchdog;
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      const tagName = await eHandle.getProperty('tagName').then(e => e.jsonValue());
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      expect(tagName).toBe('DIV');
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    });
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    it('should work when node is added through innerHTML', async({page, server}) => {
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      await page.goto(server.EMPTY_PAGE);
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      const watchdog = page.waitForSelector('h3 div');
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      await page.evaluate(addElement, 'span');
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      await page.evaluate(() => document.querySelector('span').innerHTML = '<h3><div></div></h3>');
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      await watchdog;
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    });
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    it('Page.$ waitFor is shortcut for main frame', async({page, server}) => {
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      await page.goto(server.EMPTY_PAGE);
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      await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
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      const otherFrame = page.frames()[1];
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      const watchdog = page.waitForSelector('div');
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      await otherFrame.evaluate(addElement, 'div');
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      await page.evaluate(addElement, 'div');
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      const eHandle = await watchdog;
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      expect(eHandle.frame()).toBe(page.mainFrame());
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    });
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    it('should run in specified frame', async({page, server}) => {
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      await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
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      await utils.attachFrame(page, 'frame2', server.EMPTY_PAGE);
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      const frame1 = page.frames()[1];
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      const frame2 = page.frames()[2];
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      const waitForSelectorPromise = frame2.waitForSelector('div');
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      await frame1.evaluate(addElement, 'div');
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      await frame2.evaluate(addElement, 'div');
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      const eHandle = await waitForSelectorPromise;
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      expect(eHandle.frame()).toBe(frame2);
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    });
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    it('should throw when frame is detached', async({page, server}) => {
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      await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
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      const frame = page.frames()[1];
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      let waitError = null;
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      const waitPromise = frame.waitForSelector('.box').catch(e => waitError = e);
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      await utils.detachFrame(page, 'frame1');
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      await waitPromise;
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      expect(waitError).toBeTruthy();
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      expect(waitError.message).toContain('waitForFunction failed: frame got detached.');
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    });
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    it('should survive cross-process navigation', async({page, server}) => {
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      let boxFound = false;
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      const waitForSelector = page.waitForSelector('.box').then(() => boxFound = true);
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      await page.goto(server.EMPTY_PAGE);
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      expect(boxFound).toBe(false);
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      await page.reload();
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      expect(boxFound).toBe(false);
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      await page.goto(server.CROSS_PROCESS_PREFIX + '/grid.html');
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      await waitForSelector;
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      expect(boxFound).toBe(true);
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    });
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    it('should wait for visible', async({page, server}) => {
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      let divFound = false;
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      const waitForSelector = page.waitForSelector('div').then(() => divFound = true);
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      await page.setContent(`<div style='display: none; visibility: hidden;'>1</div>`);
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      expect(divFound).toBe(false);
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      await page.evaluate(() => document.querySelector('div').style.removeProperty('display'));
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      expect(divFound).toBe(false);
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      await page.evaluate(() => document.querySelector('div').style.removeProperty('visibility'));
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      expect(await waitForSelector).toBe(true);
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      expect(divFound).toBe(true);
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    });
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    it('should wait for visible recursively', async({page, server}) => {
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      let divVisible = false;
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      const waitForSelector = page.waitForSelector('div#inner', { waitFor: 'visible' }).then(() => divVisible = true);
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      await page.setContent(`<div style='display: none; visibility: hidden;'><div id="inner">hi</div></div>`);
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      expect(divVisible).toBe(false);
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      await page.evaluate(() => document.querySelector('div').style.removeProperty('display'));
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      expect(divVisible).toBe(false);
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      await page.evaluate(() => document.querySelector('div').style.removeProperty('visibility'));
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      expect(await waitForSelector).toBe(true);
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      expect(divVisible).toBe(true);
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    });
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    it('hidden should wait for visibility: hidden', async({page, server}) => {
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      let divHidden = false;
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      await page.setContent(`<div style='display: block;'></div>`);
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      const waitForSelector = page.waitForSelector('div', { waitFor: 'hidden' }).then(() => divHidden = true);
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      await page.waitForSelector('div'); // do a round trip
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      expect(divHidden).toBe(false);
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      await page.evaluate(() => document.querySelector('div').style.setProperty('visibility', 'hidden'));
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      expect(await waitForSelector).toBe(true);
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      expect(divHidden).toBe(true);
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    });
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    it('hidden should wait for display: none', async({page, server}) => {
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      let divHidden = false;
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      await page.setContent(`<div style='display: block;'></div>`);
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      const waitForSelector = page.waitForSelector('div', { waitFor: 'hidden' }).then(() => divHidden = true);
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      await page.waitForSelector('div'); // do a round trip
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      expect(divHidden).toBe(false);
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      await page.evaluate(() => document.querySelector('div').style.setProperty('display', 'none'));
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      expect(await waitForSelector).toBe(true);
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      expect(divHidden).toBe(true);
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    });
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    it('hidden should wait for removal', async({page, server}) => {
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      await page.setContent(`<div></div>`);
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      let divRemoved = false;
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      const waitForSelector = page.waitForSelector('div', { waitFor: 'hidden' }).then(() => divRemoved = true);
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      await page.waitForSelector('div'); // do a round trip
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      expect(divRemoved).toBe(false);
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      await page.evaluate(() => document.querySelector('div').remove());
 | 
						|
      expect(await waitForSelector).toBe(true);
 | 
						|
      expect(divRemoved).toBe(true);
 | 
						|
    });
 | 
						|
    it('should return null if waiting to hide non-existing element', async({page, server}) => {
 | 
						|
      const handle = await page.waitForSelector('non-existing', { waitFor: 'hidden' });
 | 
						|
      expect(handle).toBe(null);
 | 
						|
    });
 | 
						|
    it('should respect timeout', async({page, server}) => {
 | 
						|
      let error = null;
 | 
						|
      await page.waitForSelector('div', { timeout: 10 }).catch(e => error = e);
 | 
						|
      expect(error).toBeTruthy();
 | 
						|
      expect(error.message).toContain('waiting for selector "div" failed: timeout');
 | 
						|
      expect(error).toBeInstanceOf(playwright.errors.TimeoutError);
 | 
						|
    });
 | 
						|
    it('should have an error message specifically for awaiting an element to be hidden', async({page, server}) => {
 | 
						|
      await page.setContent(`<div></div>`);
 | 
						|
      let error = null;
 | 
						|
      await page.waitForSelector('div', { waitFor: 'hidden', timeout: 10 }).catch(e => error = e);
 | 
						|
      expect(error).toBeTruthy();
 | 
						|
      expect(error.message).toContain('waiting for selector "[hidden] div" failed: timeout');
 | 
						|
    });
 | 
						|
 | 
						|
    it('should respond to node attribute mutation', async({page, server}) => {
 | 
						|
      let divFound = false;
 | 
						|
      const waitForSelector = page.waitForSelector('.zombo').then(() => divFound = true);
 | 
						|
      await page.setContent(`<div class='notZombo'></div>`);
 | 
						|
      expect(divFound).toBe(false);
 | 
						|
      await page.evaluate(() => document.querySelector('div').className = 'zombo');
 | 
						|
      expect(await waitForSelector).toBe(true);
 | 
						|
    });
 | 
						|
    it('should return the element handle', async({page, server}) => {
 | 
						|
      const waitForSelector = page.waitForSelector('.zombo');
 | 
						|
      await page.setContent(`<div class='zombo'>anything</div>`);
 | 
						|
      expect(await page.evaluate(x => x.textContent, await waitForSelector)).toBe('anything');
 | 
						|
    });
 | 
						|
    it('should have correct stack trace for timeout', async({page, server}) => {
 | 
						|
      let error;
 | 
						|
      await page.waitForSelector('.zombo', { timeout: 10 }).catch(e => error = e);
 | 
						|
      expect(error.stack).toContain('waittask.spec.js');
 | 
						|
    });
 | 
						|
    it('should throw for waitFor nowait', async({page, server}) => {
 | 
						|
      let error;
 | 
						|
      try {
 | 
						|
        await page.waitForSelector('non-existing-element', { waitFor: 'nowait' });
 | 
						|
      } catch (e) {
 | 
						|
        error = e;
 | 
						|
      }
 | 
						|
      expect(error.message).toBe('waitForSelector does not support "nowait"');
 | 
						|
    });
 | 
						|
    it('should throw for unknown waitFor option', async({page, server}) => {
 | 
						|
      await page.setContent('<section>test</section>');
 | 
						|
      const error = await page.waitForSelector('section', { waitFor: 'foo' }).catch(e => e);
 | 
						|
      expect(error.message).toContain('Unsupported waitFor option');
 | 
						|
    });
 | 
						|
    it('should throw for numeric waitFor option', async({page, server}) => {
 | 
						|
      await page.setContent('<section>test</section>');
 | 
						|
      const error = await page.waitForSelector('section', { waitFor: 123 }).catch(e => e);
 | 
						|
      expect(error.message).toContain('Unsupported waitFor option');
 | 
						|
    });
 | 
						|
    it('should throw for true waitFor option', async({page, server}) => {
 | 
						|
      await page.setContent('<section>test</section>');
 | 
						|
      const error = await page.waitForSelector('section', { waitFor: true }).catch(e => e);
 | 
						|
      expect(error.message).toContain('Unsupported waitFor option');
 | 
						|
    });
 | 
						|
    it('should throw for false waitFor option', async({page, server}) => {
 | 
						|
      await page.setContent('<section>test</section>');
 | 
						|
      const error = await page.waitForSelector('section', { waitFor: false }).catch(e => e);
 | 
						|
      expect(error.message).toContain('Unsupported waitFor option');
 | 
						|
    });
 | 
						|
    it('should support >> selector syntax', async({page, server}) => {
 | 
						|
      await page.goto(server.EMPTY_PAGE);
 | 
						|
      const frame = page.mainFrame();
 | 
						|
      const watchdog = frame.waitForSelector('css=div >> css=span');
 | 
						|
      await frame.evaluate(addElement, 'br');
 | 
						|
      await frame.evaluate(addElement, 'div');
 | 
						|
      await frame.evaluate(() => document.querySelector('div').appendChild(document.createElement('span')));
 | 
						|
      const eHandle = await watchdog;
 | 
						|
      const tagName = await eHandle.getProperty('tagName').then(e => e.jsonValue());
 | 
						|
      expect(tagName).toBe('SPAN');
 | 
						|
    });
 | 
						|
  });
 | 
						|
 | 
						|
  describe('Frame.waitForSelector xpath', function() {
 | 
						|
    const addElement = tag => document.body.appendChild(document.createElement(tag));
 | 
						|
 | 
						|
    it('should support some fancy xpath', async({page, server}) => {
 | 
						|
      await page.setContent(`<p>red herring</p><p>hello  world  </p>`);
 | 
						|
      const waitForXPath = page.waitForSelector('//p[normalize-space(.)="hello world"]');
 | 
						|
      expect(await page.evaluate(x => x.textContent, await waitForXPath)).toBe('hello  world  ');
 | 
						|
    });
 | 
						|
    it('should respect timeout', async({page}) => {
 | 
						|
      let error = null;
 | 
						|
      await page.waitForSelector('//div', { timeout: 10 }).catch(e => error = e);
 | 
						|
      expect(error).toBeTruthy();
 | 
						|
      expect(error.message).toContain('waiting for selector "//div" failed: timeout');
 | 
						|
      expect(error).toBeInstanceOf(playwright.errors.TimeoutError);
 | 
						|
    });
 | 
						|
    it('should run in specified frame', async({page, server}) => {
 | 
						|
      await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
 | 
						|
      await utils.attachFrame(page, 'frame2', server.EMPTY_PAGE);
 | 
						|
      const frame1 = page.frames()[1];
 | 
						|
      const frame2 = page.frames()[2];
 | 
						|
      const waitForXPathPromise = frame2.waitForSelector('//div');
 | 
						|
      await frame1.evaluate(addElement, 'div');
 | 
						|
      await frame2.evaluate(addElement, 'div');
 | 
						|
      const eHandle = await waitForXPathPromise;
 | 
						|
      expect(eHandle.frame()).toBe(frame2);
 | 
						|
    });
 | 
						|
    it('should throw when frame is detached', async({page, server}) => {
 | 
						|
      await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
 | 
						|
      const frame = page.frames()[1];
 | 
						|
      let waitError = null;
 | 
						|
      const waitPromise = frame.waitForSelector('//*[@class="box"]').catch(e => waitError = e);
 | 
						|
      await utils.detachFrame(page, 'frame1');
 | 
						|
      await waitPromise;
 | 
						|
      expect(waitError).toBeTruthy();
 | 
						|
      expect(waitError.message).toContain('waitForFunction failed: frame got detached.');
 | 
						|
    });
 | 
						|
    it('should return the element handle', async({page, server}) => {
 | 
						|
      const waitForXPath = page.waitForSelector('//*[@class="zombo"]');
 | 
						|
      await page.setContent(`<div class='zombo'>anything</div>`);
 | 
						|
      expect(await page.evaluate(x => x.textContent, await waitForXPath)).toBe('anything');
 | 
						|
    });
 | 
						|
    it('should allow you to select an element with single slash', async({page, server}) => {
 | 
						|
      await page.setContent(`<div>some text</div>`);
 | 
						|
      const waitForXPath = page.waitForSelector('//html/body/div');
 | 
						|
      expect(await page.evaluate(x => x.textContent, await waitForXPath)).toBe('some text');
 | 
						|
    });
 | 
						|
  });
 | 
						|
 | 
						|
};
 |