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			396 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			396 lines
		
	
	
		
			15 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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import { test as base, expect } from './pageTest';
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import fs from 'fs';
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import type * as har from '../../packages/trace/src/har';
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const it = base.extend<{
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  // We access test servers at 10.0.2.2 from inside the browser on Android,
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  // which is actually forwarded to the desktop localhost.
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  // To use request such an url with apiRequestContext on the desktop, we need to change it back to localhost.
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  rewriteAndroidLoopbackURL(url: string): string
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      }>({
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        rewriteAndroidLoopbackURL: ({ isAndroid }, use) => use(givenURL => {
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          if (!isAndroid)
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            return givenURL;
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          const requestURL = new URL(givenURL);
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          requestURL.hostname = 'localhost';
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          return requestURL.toString();
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        })
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      });
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it('should work', async ({ page, server }) => {
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  await page.route('**/*', route => {
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    route.fulfill({
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      status: 201,
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      headers: {
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        foo: 'bar'
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      },
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      contentType: 'text/html',
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      body: 'Yo, page!'
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    });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(response.status()).toBe(201);
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  expect(response.headers().foo).toBe('bar');
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  expect(await page.evaluate(() => document.body.textContent)).toBe('Yo, page!');
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});
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it('should work with buffer as body', async ({ page, server, browserName, isLinux }) => {
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  await page.route('**/*', route => {
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    route.fulfill({
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      status: 200,
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      contentType: 'text/plain',
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      body: Buffer.from('Yo, page!')
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    });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(response.status()).toBe(200);
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  expect(await page.evaluate(() => document.body.textContent)).toBe('Yo, page!');
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});
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it('should work with status code 422', async ({ page, server }) => {
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  await page.route('**/*', route => {
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    route.fulfill({
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      status: 422,
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      body: 'Yo, page!'
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    });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(response.status()).toBe(422);
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  expect(response.statusText()).toBe('Unprocessable Entity');
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  expect(await page.evaluate(() => document.body.textContent)).toBe('Yo, page!');
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});
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it('should allow mocking binary responses', async ({ page, server, browserName, headless, asset, isAndroid, mode }) => {
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  it.skip(browserName === 'firefox' && !headless, 'Firefox headed produces a different image.');
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  it.skip(isAndroid);
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  await page.route('**/*', route => {
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    const imageBuffer = fs.readFileSync(asset('pptr.png'));
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    route.fulfill({
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      contentType: 'image/png',
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      body: imageBuffer
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    });
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  });
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  await page.evaluate(PREFIX => {
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    const img = document.createElement('img');
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    img.src = PREFIX + '/does-not-exist.png';
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    document.body.appendChild(img);
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    return new Promise(fulfill => img.onload = fulfill);
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  }, server.PREFIX);
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  const img = await page.$('img');
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  expect(await img.screenshot()).toMatchSnapshot('mock-binary-response.png');
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});
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it('should allow mocking svg with charset', async ({ page, server, browserName, headless, isAndroid, isElectron, mode }) => {
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  it.skip(browserName === 'firefox' && !headless, 'Firefox headed produces a different image.');
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  it.skip(isAndroid);
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  it.skip(isElectron, 'Protocol error (Storage.getCookies): Browser context management is not supported');
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  await page.route('**/*', route => {
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    route.fulfill({
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      contentType: 'image/svg+xml ; charset=utf-8',
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      body: '<svg width="50" height="50" version="1.1" xmlns="http://www.w3.org/2000/svg"><rect x="10" y="10" width="30" height="30" stroke="black" fill="transparent" stroke-width="5"/></svg>'
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    });
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  });
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  await page.evaluate(PREFIX => {
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    const img = document.createElement('img');
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    img.src = PREFIX + '/does-not-exist.svg';
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    document.body.appendChild(img);
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    return new Promise((f, r) => { img.onload = f; img.onerror = r; });
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  }, server.PREFIX);
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  const img = await page.$('img');
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  expect(await img.screenshot()).toMatchSnapshot('mock-svg.png');
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});
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it('should work with file path', async ({ page, server, asset, mode, isAndroid }) => {
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  it.skip(isAndroid);
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  await page.route('**/*', route => route.fulfill({ contentType: 'shouldBeIgnored', path: asset('pptr.png') }));
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  await page.evaluate(PREFIX => {
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    const img = document.createElement('img');
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    img.src = PREFIX + '/does-not-exist.png';
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    document.body.appendChild(img);
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    return new Promise(fulfill => img.onload = fulfill);
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  }, server.PREFIX);
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  const img = await page.$('img');
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  expect(await img.screenshot()).toMatchSnapshot('mock-binary-response.png');
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});
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it('should stringify intercepted request response headers', async ({ page, server }) => {
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  await page.route('**/*', route => {
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    route.fulfill({
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      status: 200,
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      headers: {
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        'foo': 'true'
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      },
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      body: 'Yo, page!'
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    });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(response.status()).toBe(200);
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  const headers = response.headers();
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  expect(headers.foo).toBe('true');
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  expect(await page.evaluate(() => document.body.textContent)).toBe('Yo, page!');
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});
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it('should not modify the headers sent to the server', async ({ page, server }) => {
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  await page.goto(server.PREFIX + '/empty.html');
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  const interceptedRequests = [];
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  // this is just to enable request interception, which disables caching in chromium
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  await page.route(server.PREFIX + '/unused', () => {});
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  server.setRoute('/something', (request, response) => {
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    interceptedRequests.push(request);
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    response.writeHead(200, { 'Access-Control-Allow-Origin': '*' });
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    response.end('done');
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  });
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  const text = await page.evaluate(async url => {
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    const data = await fetch(url);
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    return data.text();
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  }, server.CROSS_PROCESS_PREFIX + '/something');
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  expect(text).toBe('done');
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  await page.route(server.CROSS_PROCESS_PREFIX + '/something', (route, request) => {
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    route.continue({
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      headers: {
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        ...request.headers()
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      }
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    });
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  });
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  const textAfterRoute = await page.evaluate(async url => {
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    const data = await fetch(url);
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    return data.text();
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  }, server.CROSS_PROCESS_PREFIX + '/something');
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  expect(textAfterRoute).toBe('done');
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  expect(interceptedRequests.length).toBe(2);
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  expect(interceptedRequests[1].headers).toEqual(interceptedRequests[0].headers);
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});
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it('should include the origin header', async ({ page, server, isAndroid }) => {
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  it.skip(isAndroid, 'No cross-process on Android');
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  await page.goto(server.PREFIX + '/empty.html');
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  let interceptedRequest;
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  await page.route(server.CROSS_PROCESS_PREFIX + '/something', (route, request) => {
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    interceptedRequest = request;
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    route.fulfill({
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      headers: {
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        'Access-Control-Allow-Origin': '*',
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      },
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      contentType: 'text/plain',
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      body: 'done'
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    });
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  });
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  const text = await page.evaluate(async url => {
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    const data = await fetch(url);
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    return data.text();
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  }, server.CROSS_PROCESS_PREFIX + '/something');
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  expect(text).toBe('done');
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  expect(interceptedRequest.headers()['origin']).toEqual(server.PREFIX);
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});
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it('should fulfill with global fetch result', async ({ playwright, page, server, isElectron, rewriteAndroidLoopbackURL }) => {
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  it.fixme(isElectron, 'error: Browser context management is not supported.');
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  await page.route('**/*', async route => {
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    const request = await playwright.request.newContext();
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    const response = await request.get(rewriteAndroidLoopbackURL(server.PREFIX + '/simple.json'));
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    route.fulfill({ response });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(response.status()).toBe(200);
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  expect(await response.json()).toEqual({ 'foo': 'bar' });
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});
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it('should fulfill with fetch result', async ({ page, server, isElectron, rewriteAndroidLoopbackURL }) => {
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  it.fixme(isElectron, 'error: Browser context management is not supported.');
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  await page.route('**/*', async route => {
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    const response = await page.request.get(rewriteAndroidLoopbackURL(server.PREFIX + '/simple.json'));
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    route.fulfill({ response });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(response.status()).toBe(200);
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  expect(await response.json()).toEqual({ 'foo': 'bar' });
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});
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it('should fulfill with fetch result and overrides', async ({ page, server, isElectron, rewriteAndroidLoopbackURL }) => {
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  it.fixme(isElectron, 'error: Browser context management is not supported.');
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  await page.route('**/*', async route => {
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    const response = await page.request.get(rewriteAndroidLoopbackURL(server.PREFIX + '/simple.json'));
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    route.fulfill({
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      response,
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      status: 201,
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      headers: {
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        'Content-Type': 'application/json', // Case matters for the tested behavior
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        'foo': 'bar'
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      }
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    });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(response.status()).toBe(201);
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  expect((await response.allHeaders()).foo).toEqual('bar');
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  expect(await response.json()).toEqual({ 'foo': 'bar' });
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});
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it('should fetch original request and fulfill', async ({ page, server, isElectron, isAndroid }) => {
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  it.fixme(isElectron, 'error: Browser context management is not supported.');
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  it.skip(isAndroid, 'The internal Android localhost (10.0.0.2) != the localhost on the host');
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  await page.route('**/*', async route => {
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    const response = await page.request.fetch(route.request());
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    route.fulfill({
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      response,
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    });
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  });
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  const response = await page.goto(server.PREFIX + '/title.html');
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  expect(response.status()).toBe(200);
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  expect(await page.title()).toEqual('Woof-Woof');
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});
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it('should fulfill with multiple set-cookie', async ({ page, server, isElectron }) => {
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  it.fixme(isElectron, 'Electron 14+ is required');
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  const cookies = ['a=b', 'c=d'];
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  await page.route('**/empty.html', async route => {
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    route.fulfill({
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      status: 200,
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      headers: {
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        'X-Header-1': 'v1',
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        'Set-Cookie': cookies.join('\n'),
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        'X-Header-2': 'v2',
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      },
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      body: ''
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    });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect((await page.evaluate(() => document.cookie)).split(';').map(s => s.trim()).sort()).toEqual(cookies);
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  expect(await response.headerValue('X-Header-1')).toBe('v1');
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  expect(await response.headerValue('X-Header-2')).toBe('v2');
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});
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it('should fulfill with fetch response that has multiple set-cookie', async ({ playwright, page, server, isAndroid }) => {
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  it.fixme(isAndroid);
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  server.setRoute('/empty.html', (req, res) => {
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    res.setHeader('Set-Cookie', ['a=b', 'c=d']);
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    res.setHeader('Content-Type', 'text/html');
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    res.end();
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  });
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  await page.route('**/empty.html', async route => {
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    const request = await playwright.request.newContext();
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    const response = await request.fetch(route.request());
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    route.fulfill({ response });
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  });
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  await page.goto(server.EMPTY_PAGE);
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  const cookie = await page.evaluate(() => document.cookie);
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  expect(cookie.split(';').map(s => s.trim()).sort()).toEqual(['a=b', 'c=d']);
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});
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it('headerValue should return set-cookie from intercepted response', async ({ page, server, browserName }) => {
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  it.fail(browserName === 'chromium', 'Set-Cookie is missing in response after interception');
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  it.skip(browserName === 'webkit', 'Set-Cookie with \n in intercepted response does not pass validation in WebCore, see also https://github.com/microsoft/playwright/pull/9273');
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  await page.route('**/empty.html', async route => {
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    route.fulfill({
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      status: 200,
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      headers: {
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        'Set-Cookie': 'a=b',
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      },
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      body: ''
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    });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(await response.headerValue('Set-Cookie')).toBe('a=b');
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});
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it('should fulfill with har response', async ({ page, asset }) => {
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  const harPath = asset('har-fulfill.har');
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  const har = JSON.parse(await fs.promises.readFile(harPath, 'utf-8')) as har.HARFile;
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  await page.route('**/*', async route => {
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    const response = findResponse(har, route.request().url());
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    const headers = {};
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    for (const { name, value } of response.headers)
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      headers[name] = value;
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    await route.fulfill({
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      status: response.status,
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      headers,
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      body: Buffer.from(response.content.text || '', (response.content.encoding as 'base64' | undefined) || 'utf-8'),
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    });
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  });
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  await page.goto('http://no.playwright/');
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  // HAR contains a redirect for the script.
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  expect(await page.evaluate('window.value')).toBe('foo');
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  // HAR contains a POST for the css file but we match ignoring the method, so the file should be served.
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  await expect(page.locator('body')).toHaveCSS('background-color', 'rgb(0, 255, 255)');
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});
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function findResponse(har: har.HARFile, url: string): har.Response {
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  let entry;
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  const originalUrl = url;
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  while (url.trim()) {
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    entry = har.log.entries.find(entry => entry.request.url === url);
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    url = entry?.response.redirectURL;
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  }
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  expect(entry, originalUrl).toBeTruthy();
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  return entry?.response;
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}
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it('should fulfill preload link requests', async ({ page, server, browserName }) => {
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  it.info().annotations.push({ type: 'issue', description: 'https://github.com/microsoft/playwright/issues/16745' });
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  let intercepted = false;
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  await page.route('**/one-style.css', route => {
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    intercepted = true;
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    route.fulfill({
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      status: 200,
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      headers: {
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        'content-type': 'text/css; charset=utf-8',
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        'cache-control': 'no-cache, no-store',
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        'custom': 'value'
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      },
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      body: 'body { background-color: green; }'
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    });
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  });
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  const [response] = await Promise.all([
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    page.waitForResponse('**/one-style.css'),
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    page.goto(server.PREFIX + '/preload.html')
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  ]);
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  expect(await response.headerValue('custom')).toBe('value');
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  await page.waitForFunction(() => (window as any).preloadedStyles);
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  expect(intercepted).toBe(true);
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  const color = await page.evaluate(() => window.getComputedStyle(document.body).backgroundColor);
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  expect(color).toBe('rgb(0, 128, 0)');
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});
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it('should fulfill json', async ({ page, server }) => {
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  await page.route('**/*', route => {
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    route.fulfill({
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      status: 201,
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      headers: {
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        foo: 'bar'
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      },
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      json: { bar: 'baz' },
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    });
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  });
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  const response = await page.goto(server.EMPTY_PAGE);
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  expect(response.status()).toBe(201);
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  expect(response.headers()['content-type']).toBe('application/json');
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  expect(await page.evaluate(() => document.body.textContent)).toBe(JSON.stringify({ bar: 'baz' }));
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});
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