Go to file
Mario Nebl 70ed020c87
fix: handle docker edge cases (#10501)
## Before

* When docker wasn't running: crashed with a TypeError 
* When any image without `RepoTags` was present: crashed with TypeError
* Typo in recommended command ("playwight")
* No indication of `PW_TEST_IMAGE` env var in error output

<details>
<summary>Docker not running</summary>

```
Using config at ~redacted/playwright.config.ts
ERROR get /images/json 500 dial unix docker.raw.sock: connect: connection refused

TypeError: Cannot read property 'find' of null
    at launchDockerGridAgent (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:67:26)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.launch (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:43:9)
    at GridServer.createAgent (~redacted/node_modules/playwright-core/lib/grid/gridServer.js:356:5)
    at launchDockerContainer (~redacted/node_modules/@playwright/test/lib/cli.js:259:3)
    at Runner._run (~redacted/node_modules/@playwright/test/lib/runner.js:236:98)

Running 1 test using 1 worker

     test.ts:9:1 › some redacted description
ERROR get /images/json 500 dial unix docker.raw.sock: connect: connection refused

TypeError: Cannot read property 'find' of null
    at launchDockerGridAgent (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:67:26)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.launch (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js
```

</details>

<details>
<summary>Image without repo tags</summary>

```
Using config at ~redacted/playwright.config.ts
TypeError: Cannot read property 'includes' of undefined
    at ~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:67:55
    at Array.find (<anonymous>)
    at launchDockerGridAgent (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:67:26)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.launch (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:43:9)
    at GridServer.createAgent (~redacted/node_modules/playwright-core/lib/grid/gridServer.js:356:5)
    at launchDockerContainer (~redacted/node_modules/@playwright/test/lib/cli.js:259:3)
    at Runner._run (~redacted/node_modules/@playwright/test/lib/runner.js:236:98)

Running 1 test using 1 worker

     some-test.ts › some description
TypeError: Cannot read property 'includes' of undefined
    at ~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:67:55
    at Array.find (<anonymous>)
    at launchDockerGridAgent (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:67:26)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.launch (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.j  ✘  editor-editor-wysiwyg--editor-wysiwyg.vr.ts:9:1 › actual element matches expected element (26ms)


  1) some-test.ts › some description =====

    'Grid agent creation failed'


  1 failed
  some-test.ts › some description ======
```

</details>

## After

* Helpful error message if docker isn't running
* Doesn't crash when local-only images in list
* No typo in `playwright install docker-image` command
* When other playwright images are found they are listed and  `PW_TEST_IMAGE` is mentioned

### After: Docker not running

```
Using config at ~redacted/playwright.config.ts
Error fetching json: Error: connect ECONNREFUSED /var/run/docker.sock
Error:
╔═════════════════════════════════════════╗
║ Failed to list docker images            ║
║ Please ensure docker daemon is running. ║
║                                         ║
║ <3 Playwright Team                      ║
╚═════════════════════════════════════════╝
    at launchDockerGridAgent (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:61:11)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.launch (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:43:9)
    at GridServer.createAgent (~redacted/node_modules/playwright-core/lib/grid/gridServer.js:356:5)
    at launchDockerContainer (~redacted/node_modules/@playwright/test/lib/cli.js:259:3)
    at Runner._run (~redacted/node_modules/@playwright/test/lib/runner.js:236:98)

Running 1 test using 1 worker

     test.ts:9:1 › description
Error fetching json: Error: connect ECONNREFUSED /var/run/docker.sock
Error:
╔═════════════════════════════════════════╗
║ Failed to list docker images            ║
║ Please ensure docker daemon is running. ║
║                                         ║
║ <3 Playwright Team                      ║
╚═════════════════════════════════════════╝
    at launchDockerGridAgent (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:61:11)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.launch (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.j  ✘  test.ts:9:1 › description


  1) test.ts:9:1 › description =====

    'Grid agent creation failed'


  1 failed
    test.ts:9:1 › description ======
```

## After: No exact match found 

```
Using config at ~redacted/playwright.config.ts
Error:
╔════════════════════════════════════════════════════════════════════════════╗
║ Failed to find mcr.microsoft.com/playwright:v1.16.3-focal docker image.    ║
║                                                                            ║
║ Available images:                                                          ║
║ - mcr.microsoft.com/playwright:v1.16.3                                     ║
║ - mcr.microsoft.com/playwright:v1.16.2-focal                               ║
║                                                                            ║
║ Use available images via PWTEST_IMAGE_NAME environment variable:           ║
║     PWTEST_IMAGE_NAME=mcr.microsoft.com/playwright:v1.16.3 playwright test ║
║                                                                            ║
║ Alternatively, please pull docker image with the following command:        ║
║                                                                            ║
║     npx playwright install docker-image                                    ║
║                                                                            ║
║ <3 Playwright Team                                                         ║
╚════════════════════════════════════════════════════════════════════════════╝
    at launchDockerGridAgent (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:92:11)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.launch (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:43:9)
    at GridServer.createAgent (~redacted/node_modules/playwright-core/lib/grid/gridServer.js:356:5)
    at launchDockerContainer (~redacted/node_modules/@playwright/test/lib/cli.js:259:3)
    at Runner._run (~redacted/node_modules/@playwright/test/lib/runner.js:236:98)

Running 1 test using 1 worker

     editor-editor-wysiwyg--editor-wysiwyg.vr.ts:9:1 › actual element matches expected element
Error:
╔════════════════════════════════════════════════════════════════════════════╗
║ Failed to find mcr.microsoft.com/playwright:v1.16.3-focal docker image.    ║
║                                                                            ║
║ Available images:                                                          ║
║ - mcr.microsoft.com/playwright:v1.16.3                                     ║
║ - mcr.microsoft.com/playwright:v1.16.2-focal                               ║
║                                                                            ║
║ Use available images via PWTEST_IMAGE_NAME environment variable:           ║
║     PWTEST_IMAGE_NAME=mcr.microsoft.com/playwright:v1.16.3 playwright test ║
║                                                                            ║
║ Alternatively, please pull docker image with the following command:        ║
║                                                                            ║
║     npx playwright install docker-image                                    ║
║                                                                            ║
║ <3 Playwright Team                                                         ║
╚════════════════════════════════════════════════════════════════════════════╝
    at launchDockerGridAgent (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.js:92:11)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.launch (~redacted/node_modules/playwright-core/lib/grid/dockerGridFactory.j  ✘  test.ts:9:1 › description


  1) test.ts:9:1 › description =====

    'Grid agent creation failed'


  1 failed
    test.ts:9:1 › description ======
```
2021-12-16 15:11:51 -08:00
.devcontainer chore: fixed devcontainer Docker usage (#3898) 2020-09-17 11:21:10 -07:00
.github chore: make PR template more accessible (#10952) 2021-12-15 11:20:30 -08:00
browser_patches devops: fix firefox packaging for Ubuntu 20.04 arm64 (#10962) 2021-12-15 18:10:26 -08:00
docs docs(expect): APIResponse assertions (#10957) 2021-12-16 11:27:30 -08:00
examples examples: add a couple of @playwright/test examples (#10758) 2021-12-07 12:35:38 -08:00
installation-tests test: move grid tests to installation-tests (#10418) 2021-11-18 15:32:09 -08:00
packages fix: handle docker edge cases (#10501) 2021-12-16 15:11:51 -08:00
tests fix(fetch): basic authentication without realm (#10979) 2021-12-16 13:40:52 -08:00
utils docs(expect): APIResponse assertions (#10957) 2021-12-16 11:27:30 -08:00
.editorconfig Initial commit 2019-11-19 10:58:15 -08:00
.eslintignore feat(create-playwright): add option to add examples (#8963) 2021-10-21 20:21:50 +02:00
.eslintrc.js chore: enable object-curly-spacing in ESLint (#9168) 2021-09-27 18:58:08 +02:00
.gitattributes chore: lang hint for GitHub 2021-12-13 04:05:17 -08:00
.gitignore docs(python): enable web-first assertions (#10390) 2021-11-18 00:46:30 +01:00
babel.config.json chore: don't include babel compiled files in webpack bundles (#9491) 2021-10-13 19:27:50 -07:00
CODE_OF_CONDUCT.md Revert "chore: rework the crlf in md fix" 2021-01-20 15:45:59 -08:00
CONTRIBUTING.md devops: migrate from master to main branch (#10303) 2021-12-07 22:58:33 -08:00
install-from-github.js fix: support even older node 12 (#9718) 2021-10-22 15:59:52 -04:00
LICENSE chore(license): use Apache 2.0 (#389) 2020-01-06 18:22:35 -08:00
NOTICE chore(license): add NOTICE (#309) 2019-12-19 12:19:54 -08:00
package-lock.json chore: parse tsx tests (#10917) 2021-12-14 19:25:07 -08:00
package.json chore: parse tsx tests (#10917) 2021-12-14 19:25:07 -08:00
README.md feat(firefox): roll to r1311 (#10963) 2021-12-15 21:47:58 -08:00
SECURITY.md Revert "chore: rework the crlf in md fix" 2021-01-20 15:45:59 -08:00
tsconfig.json chore: remove create-playwright, it is in monorepo by mistake (#10654) 2021-12-01 13:09:35 -08:00

🎭 Playwright

npm version Chromium version Firefox version WebKit version

Documentation | API reference

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast.

Linux macOS Windows
Chromium 99.0.4763.0
WebKit 15.4
Firefox 95.0

Headless execution is supported for all the browsers on all platforms. Check out system requirements for details.

Usage

npm i -D playwright

This installs Playwright and browser binaries for Chromium, Firefox and WebKit. Once installed, you can require Playwright in a Node.js script and automate web browser interactions.

Capabilities

Playwright is built to automate the broad and growing set of web browser capabilities used by Single Page Apps and Progressive Web Apps.

  • Scenarios that span multiple page, domains and iframes
  • Auto-wait for elements to be ready before executing actions (like click, fill)
  • Intercept network activity for stubbing and mocking network requests
  • Emulate mobile devices, geolocation, permissions
  • Support for web components via shadow-piercing selectors
  • Native input events for mouse and keyboard
  • Upload and download files

Examples

Page screenshot

This code snippet navigates to whatsmyuseragent.org in Chromium, Firefox and WebKit, and saves 3 screenshots.

const playwright = require('playwright');

(async () => {
  for (const browserType of [playwright.chromium, playwright.firefox, playwright.webkit]) {
    const browser = await browserType.launch();
    const context = await browser.newContext();
    const page = await context.newPage();
    await page.goto('http://whatsmyuseragent.org/');
    await page.screenshot({ path: `example-${browserType.name()}.png` });
    await browser.close();
  }
})();

Mobile and geolocation

This snippet emulates Mobile Safari on a device at a given geolocation, navigates to maps.google.com, performs action and takes a screenshot.

const { webkit, devices } = require('playwright');
const iPhone11 = devices['iPhone 11 Pro'];

(async () => {
  const browser = await webkit.launch();
  const context = await browser.newContext({
    ...iPhone11,
    locale: 'en-US',
    geolocation: { longitude: 12.492507, latitude: 41.889938 },
    permissions: ['geolocation']
  });
  const page = await context.newPage();
  await page.goto('https://maps.google.com');
  await page.click('text="Your location"');
  await page.waitForRequest(/.*preview\/pwa/);
  await page.screenshot({ path: 'colosseum-iphone.png' });
  await browser.close();
})();

Evaluate in browser context

This code snippet navigates to example.com in Firefox, and executes a script in the page context.

const { firefox } = require('playwright');

(async () => {
  const browser = await firefox.launch();
  const context = await browser.newContext();
  const page = await context.newPage();
  await page.goto('https://www.example.com/');
  const dimensions = await page.evaluate(() => {
    return {
      width: document.documentElement.clientWidth,
      height: document.documentElement.clientHeight,
      deviceScaleFactor: window.devicePixelRatio
    }
  });
  console.log(dimensions);

  await browser.close();
})();

Intercept network requests

This code snippet sets up request routing for a WebKit page to log all network requests.

const { webkit } = require('playwright');

(async () => {
  const browser = await webkit.launch();
  const context = await browser.newContext();
  const page = await context.newPage();

  // Log and continue all network requests
  await page.route('**', route => {
    console.log(route.request().url());
    route.continue();
  });

  await page.goto('http://todomvc.com');
  await browser.close();
})();

Resources