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135 lines
5.3 KiB
Markdown
135 lines
5.3 KiB
Markdown
# 🎭 Playwright
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[](https://www.npmjs.com/package/playwright) <!-- GEN:chromium-version-badge -->[](https://www.chromium.org/Home)<!-- GEN:stop --> <!-- GEN:firefox-version-badge -->[](https://www.mozilla.org/en-US/firefox/new/)<!-- GEN:stop --> [](https://webkit.org/) [](https://join.slack.com/t/playwright/shared_invite/enQtOTEyMTUxMzgxMjIwLThjMDUxZmIyNTRiMTJjNjIyMzdmZDA3MTQxZWUwZTFjZjQwNGYxZGM5MzRmNzZlMWI5ZWUyOTkzMjE5Njg1NDg)
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###### [API](https://github.com/microsoft/playwright/blob/master/docs/api.md) | [Changelog](https://github.com/microsoft/playwright/releases) | [FAQ](#faq) | [Contributing](#contributing)
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Playwright is a Node library to automate the [Chromium](https://www.chromium.org/Home), [WebKit](https://webkit.org/) and [Firefox](https://www.mozilla.org/en-US/firefox/new/) browsers with a single API. It enables **cross-browser** web automation that is **ever-green**, **capable**, **reliable** and **fast**.
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| | ver | Linux | macOS | Win |
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| ---: | :---: | :---: | :---: | :---: |
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| Chromium| <!-- GEN:chromium-version -->84.0.4117.0<!-- GEN:stop --> | :white_check_mark: | :white_check_mark: | :white_check_mark: |
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| WebKit | 13.0.4 | :white_check_mark: | :white_check_mark: | :white_check_mark: |
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| Firefox | <!-- GEN:firefox-version -->76.0b5<!-- GEN:stop --> | :white_check_mark: | :white_check_mark: | :white_check_mark: |
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- Headless is supported for all the browsers on all platforms.
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Our primary goal with Playwright is to improve automated UI testing by eliminating flakiness, improving the speed of execution and offering insights into the browser operation.
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### Usage
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```
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npm i playwright
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```
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This installs Playwright along with its dependencies and the browser binaries. Browser binaries are about 50-100MB each, so expect the installation network traffic to be substantial.
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Once installed, Playwright can be used to create a browser instance, open pages and then automate interactions.
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* [Documentation](docs/README.md)
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* [API reference](docs/api.md)
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### Examples
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#### Page screenshot
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This code snippet navigates to whatsmyuseragent.org in Chromium, Firefox and WebKit, and saves 3 screenshots.
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```js
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const playwright = require('playwright');
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(async () => {
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for (const browserType of ['chromium', 'firefox', 'webkit']) {
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const browser = await playwright[browserType].launch();
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const context = await browser.newContext();
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const page = await context.newPage();
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await page.goto('http://whatsmyuseragent.org/');
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await page.screenshot({ path: `example-${browserType}.png` });
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await browser.close();
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}
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})();
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```
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#### Mobile and geolocation
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This snippet emulates Mobile Safari on a device at a given geolocation, navigates to maps.google.com, performs action and takes a screenshot.
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```js
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const { webkit, devices } = require('playwright');
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const iPhone11 = devices['iPhone 11 Pro'];
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(async () => {
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const browser = await webkit.launch();
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const context = await browser.newContext({
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...iPhone11,
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geolocation: { longitude: 12.492507, latitude: 41.889938 },
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permissions: ['geolocation']
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});
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const page = await context.newPage();
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await page.goto('https://maps.google.com');
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await page.click('text="Your location"');
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await page.waitForRequest(/.*preview\/pwa/);
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await page.screenshot({ path: 'colosseum-iphone.png' });
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await browser.close();
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})();
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```
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#### Evaluate in browser context
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This code snippet navigates to example.com in Firefox, and executes a script in the page context.
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```js
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const { firefox } = require('playwright');
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(async () => {
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const browser = await firefox.launch();
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const context = await browser.newContext();
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const page = await context.newPage();
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await page.goto('https://www.example.com/');
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const dimensions = await page.evaluate(() => {
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return {
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width: document.documentElement.clientWidth,
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height: document.documentElement.clientHeight,
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deviceScaleFactor: window.devicePixelRatio
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}
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})
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console.log(dimensions);
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await browser.close();
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})();
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```
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#### Intercept network requests
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This code snippet sets up request routing for a WebKit page to log all network requests.
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```js
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const { webkit } = require('playwright');
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(async () => {
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const browser = await webkit.launch();
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const context = await browser.newContext();
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const page = await context.newPage();
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// Log and continue all network requests
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page.route('**', route => {
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console.log(route.request().url());
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route.continue();
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});
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await page.goto('http://todomvc.com');
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await browser.close();
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})();
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```
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## Contributing
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Check out our [contributing guide](https://github.com/microsoft/playwright/blob/master/CONTRIBUTING.md).
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## Resources
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* [Documentation](docs/README.md)
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* [Example recipes](docs/examples/README.md)
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* [API reference](docs/api.md)
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* [Community showcase](docs/showcase.md)
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