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docs(test-runner): document configuration options (#7572)

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docs/src/test-configuration.md
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@ -3,33 +3,15 @@ id: test-configuration
title: "Configuration"
---
Playwright Test provides options to configure the default `browser`, `context` and `page` fixtures. For example there are options for `headless`, `viewport` and `ignoreHTTPSErrors`. You can also record a video or a trace for the test or capture a screenshot at the end.
Finally, there are plenty of testing options like `timeout` or `testDir` that configure how your tests are collected and executed.
You can specify any options globally in the configuration file, and most of them locally in a test file.
<!-- TOC -->
## Configure browser, context, videos and screenshots
Playwright Tests supports browser and context options that you typically pass to [`method: BrowserType.launch`] and [`method: Browser.newContext`] methods, for example `headless`, `viewport` or `ignoreHTTPSErrors`. It also provides options to record video for the test or capture screenshot at the end.
You can specify any options either locally in a test file, or globally in the configuration file.
- `launchOptions` - Browser launch options match [`method: BrowserType.launch`] method.
- `contextOptions` - Context options match [`method: Browser.newContext`] method.
- `screenshot` option - whether to capture a screenshot after each test, off by default. Screenshot will appear in the test output directory, typically `test-results`.
- `'off'` - Do not capture screenshots.
- `'on'` - Capture screenshot after each test.
- `'only-on-failure'` - Capture screenshot after each test failure.
- `trace` option - whether to record trace for each test, off by default. Trace will appear in the test output directory, typically `test-results`.
- `'off'` - Do not record trace.
- `'on'` - Record trace for each test.
- `'retain-on-failure'` - Record trace for each test, but remove it from successful test runs.
- `'on-first-retry'` - Record trace only when retrying a test for the first time.
- `video` option - whether to record video for each test, off by default. Video will appear in the test output directory, typically `test-results`.
- `'off'` - Do not record video.
- `'on'` - Record video for each test.
- `'retain-on-failure'` - Record video for each test, but remove all videos from successful test runs.
- `'on-first-retry'` - Record video only when retrying a test for the first time.
### Global configuration
## Global configuration
Create `playwright.config.js` (or `playwright.config.ts`) and specify options in the `use` section.
@ -39,17 +21,9 @@ Create `playwright.config.js` (or `playwright.config.ts`) and specify options in
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
use: {
// Browser options
headless: false,
launchOptions: {
slowMo: 50,
},
// Context options
viewport: { width: 1280, height: 720 },
ignoreHTTPSErrors: true,
// Artifacts
screenshot: 'only-on-failure',
video: 'on-first-retry',
},
};
@ -61,18 +35,9 @@ module.exports = config;
import { PlaywrightTestConfig } from '@playwright/test';
const config: PlaywrightTestConfig = {
use: {
// Browser options
headless: false,
launchOptions: {
slowMo: 50,
},
// Context options
viewport: { width: 1280, height: 720 },
ignoreHTTPSErrors: true,
// Artifacts
screenshot: 'only-on-failure',
video: 'on-first-retry',
},
};
@ -91,7 +56,7 @@ If you put your configuration file in a different place, pass it with `--config`
npx playwright test --config=tests/my.config.js
```
### Local configuration
## Local configuration
With `test.use()` you can override some options for a file or a `test.describe` block.
@ -149,6 +114,358 @@ test.describe('headed block', () => {
});
```
## Basic options
These are commonly used options for various scenarios. You usually set them globally in [configuration file](#global-configuration).
- `baseURL` - Base URL used for all pages in the context. Allows navigating by using just the path, for example `page.goto('/settings')`.
- `browserName` - Name of the browser that will run the tests, one of `chromium`, `firefox`, or `webkit`.
- `bypassCSP` - Toggles bypassing Content-Security-Policy. Useful when CSP includes the production origin.
- `channel` - Browser channel to use. [Learn more](./browsers.md) about different browsers and channels.
- `headless` - Whether to run the browser in headless mode.
- `viewport` - Viewport used for all pages in the context.
- `storageState` - Populates context with given storage state. Useful for easy authentication, [learn more](./auth.md).
```js js-flavor=js
// @ts-check
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
use: {
baseURL: 'http://localhost:3000',
browserName: 'firefox',
headless: true,
},
};
module.exports = config;
```
```js js-flavor=ts
import { PlaywrightTestConfig } from '@playwright/test';
const config: PlaywrightTestConfig = {
use: {
baseURL: 'http://localhost:3000',
browserName: 'firefox',
headless: true,
},
};
export default config;
```
## Emulation
Playwright can [emulate different environments](./emulation.md) like mobile device, locale or timezone.
Here is an example configuration that runs tests in "Pixel 4" and "iPhone 11" emulation modes. Note that it uses the [projects](./test-advanced.md#projects) feature to run the same set of tests in multiple configurations.
```js js-flavor=js
// playwright.config.js
// @ts-check
const { devices } = require('playwright');
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
projects: [
// "Pixel 4" tests use Chromium browser.
{
name: 'Pixel 4',
use: {
browserName: 'chromium',
...devices['Pixel 4'],
},
},
// "iPhone 11" tests use WebKit browser.
{
name: 'iPhone 11',
use: {
browserName: 'webkit',
...devices['iPhone 11'],
},
},
],
};
module.exports = config;
```
```js js-flavor=ts
// playwright.config.ts
import { PlaywrightTestConfig } from '@playwright/test';
import { devices } from 'playwright';
const config: PlaywrightTestConfig = {
projects: [
// "Pixel 4" tests use Chromium browser.
{
name: 'Pixel 4',
use: {
browserName: 'chromium',
...devices['Pixel 4'],
},
},
// "iPhone 11" tests use WebKit browser.
{
name: 'iPhone 11',
use: {
browserName: 'webkit',
...devices['iPhone 11'],
},
},
],
};
export default config;
```
You can specify options separately instead of using predefined devices. There are also more options such as locale, geolocation, and timezone which can be configured.
- `colorScheme` - Emulates `'prefers-colors-scheme'` media feature, supported values are `'light'`, `'dark'`, `'no-preference'`.
- `deviceScaleFactor` - Specify device scale factor (can be thought of as dpr). Defaults to `1`.
- `geolocation` - Context geolocation.
- `hasTouch` - Specifies if device supports touch events.
- `isMobile` - Whether the `meta viewport` tag is taken into account and touch events are enabled.
- `javaScriptEnabled` - Whether or not to enable JavaScript in the context.
- `locale` - User locale, for example `en-GB`, `de-DE`, etc.
- `permissions` - A list of permissions to grant to all pages in the context.
- `timezoneId` - Changes the timezone of the context.
- `userAgent` - Specific user agent to use in the context.
```js js-flavor=js
// @ts-check
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
use: {
locale: 'fr-FR',
geolocation: { longitude: 48.858455, latitude: 2.294474 },
permissions: ['geolocation'],
},
};
module.exports = config;
```
```js js-flavor=ts
import { PlaywrightTestConfig } from '@playwright/test';
const config: PlaywrightTestConfig = {
use: {
locale: 'fr-FR',
geolocation: { longitude: 48.858455, latitude: 2.294474 },
permissions: ['geolocation'],
},
};
export default config;
```
## Network
Available options to configure networking:
- `acceptDownloads` - Whether to automatically download all the attachments. [Learn more](./downloads.md) about working with downloads.
- `extraHTTPHeaders` - An object containing additional HTTP headers to be sent with every request. All header values must be strings.
- `httpCredentials` - Credentials for [HTTP authentication](./network.md#http-authentication).
- `ignoreHTTPSErrors` - Whether to ignore HTTPS errors during navigation.
- `offline` - Whether to emulate network being offline.
- `proxy` - [Proxy settings](./network.md#http-proxy) used for all pages in the test.
### Network mocking
You don't have to configure anything to mock network requests. Just define a custom [Route] that mocks network for a browser context.
```js js-flavor=js
// example.spec.js
const { test, expect } = require('@playwright/test');
test.beforeEach(async ({ context }) => {
// Block any css requests for each test in this file.
await context.route(/.css/, route => route.abort());
});
test('loads page without css', async ({ page }) => {
await page.goto('https://playwright.dev');
// ... test goes here
});
```
```js js-flavor=ts
// example.spec.ts
import { test, expect } from '@playwright/test';
test.beforeEach(async ({ context }) => {
// Block any css requests for each test in this file.
await context.route(/.css/, route => route.abort());
});
test('loads page without css', async ({ page }) => {
await page.goto('https://playwright.dev');
// ... test goes here
});
```
Alternatively, you can use [`method: Page.route`] to mock network in a single test.
```js js-flavor=js
// example.spec.js
const { test, expect } = require('@playwright/test');
test('loads page without images', async ({ page }) => {
// Block png and jpeg images.
await page.route(/(png|jpeg)$/, route => route.abort());
await page.goto('https://playwright.dev');
// ... test goes here
});
```
```js js-flavor=ts
// example.spec.ts
import { test, expect } from '@playwright/test';
test('loads page without images', async ({ page }) => {
// Block png and jpeg images.
await page.route(/(png|jpeg)$/, route => route.abort());
await page.goto('https://playwright.dev');
// ... test goes here
});
```
## Automatic screenshots
You can make Playwright Test capture screenshots for you - control it with the `screenshot` option. By default screenshots are off.
- `'off'` - Do not capture screenshots.
- `'on'` - Capture screenshot after each test.
- `'only-on-failure'` - Capture screenshot after each test failure.
Screenshots will appear in the test output directory, typically `test-results`.
```js js-flavor=js
// @ts-check
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
use: {
screenshot: 'only-on-failure',
},
};
module.exports = config;
```
```js js-flavor=ts
import { PlaywrightTestConfig } from '@playwright/test';
const config: PlaywrightTestConfig = {
use: {
screenshot: 'only-on-failure',
},
};
export default config;
```
## Record video
Playwright Test can record videos for your tests, controlled by the `video` option. By default videos are off.
- `'off'` - Do not record video.
- `'on'` - Record video for each test.
- `'retain-on-failure'` - Record video for each test, but remove all videos from successful test runs.
- `'on-first-retry'` - Record video only when retrying a test for the first time.
Video files will appear in the test output directory, typically `test-results`.
```js js-flavor=js
// @ts-check
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
use: {
video: 'on-first-retry',
},
};
module.exports = config;
```
```js js-flavor=ts
import { PlaywrightTestConfig } from '@playwright/test';
const config: PlaywrightTestConfig = {
use: {
video: 'on-first-retry',
},
};
export default config;
```
## Record test trace
Playwright Test can produce test traces while running the tests. Later on, you can view the trace and get detailed information about Playwright execution by opening [Trace Viewer](./trace-viewer.md). By default tracing is off, controlled by the `trace` option.
- `'off'` - Do not record trace.
- `'on'` - Record trace for each test.
- `'retain-on-failure'` - Record trace for each test, but remove it from successful test runs.
- `'on-first-retry'` - Record trace only when retrying a test for the first time.
Trace files will appear in the test output directory, typically `test-results`.
```js js-flavor=js
// @ts-check
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
use: {
trace: 'retain-on-failure',
},
};
module.exports = config;
```
```js js-flavor=ts
import { PlaywrightTestConfig } from '@playwright/test';
const config: PlaywrightTestConfig = {
use: {
trace: 'retain-on-failure',
},
};
export default config;
```
## More browser and context options
Any options accepted by [`method: BrowserType.launch`] or [`method: Browser.newContext`] can be put into `launchOptions` or `contextOptions` respectively in the `use` section.
```js js-flavor=js
// @ts-check
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
use: {
launchOptions: {
slowMo: 50,
},
},
};
module.exports = config;
```
```js js-flavor=ts
import { PlaywrightTestConfig } from '@playwright/test';
const config: PlaywrightTestConfig = {
use: {
launchOptions: {
slowMo: 50,
},
},
};
export default config;
```
However, most common ones like `headless` or `viewport` are available directly in the `use` section - see [basic options](#basic-options), [emulation](#emulation) or [network](#network).
## Testing options
In addition to configuring [Browser] or [BrowserContext], videos or screenshots, Playwright Test has many options to configure how your tests are run. Below are the most common ones, see [advanced configuration](./test-advanced.md) for the full list.
@ -161,10 +478,10 @@ In addition to configuring [Browser] or [BrowserContext], videos or screenshots,
- `testIgnore`: Glob patterns or regular expressions that should be ignored when looking for the test files. For example, `'**/test-assets'`.
- `testMatch`: Glob patterns or regular expressions that match test files. For example, `'**/todo-tests/*.spec.ts'`. By default, Playwright Test runs `.*(test|spec)\.(js|ts|mjs)` files.
- `timeout`: Time in milliseconds given to each test.
- `webServer: { command: string, port?: number, cwd?: string, timeout?: number, env?: object }` - Launch a web server before the tests will start. It will automaticially detect the port when it got printed to the stdout.
- `webServer: { command: string, port?: number, cwd?: string, timeout?: number, env?: object }` - Launch a web server before the tests will start. It will automatically detect the port when it got printed to the stdout.
- `workers`: The maximum number of concurrent worker processes to use for parallelizing tests.
You can specify these options in the configuration file.
You can specify these options in the configuration file. Note that testing options are **top-level**, do not put them into the `use` section.
```js js-flavor=js
// playwright.config.js
@ -331,131 +648,3 @@ There are many more things you can do with projects:
:::note
`--browser` command line option is not compatible with projects. Specify `browserName` in each project instead.
:::
## Mobile emulation
You can use configuration file to make default `context` emulate a mobile device.
Here is an example configuration that runs tests in "Pixel 4" and "iPhone 11" emulation modes. Note that it uses the [projects](./test-advanced.md#projects) feature to run the same set of tests in multiple configurations.
```js js-flavor=js
// playwright.config.js
// @ts-check
const { devices } = require('playwright');
/** @type {import('@playwright/test').PlaywrightTestConfig} */
const config = {
projects: [
// "Pixel 4" tests use Chromium browser.
{
name: 'Pixel 4',
use: {
browserName: 'chromium',
...devices['Pixel 4'],
},
},
// "iPhone 11" tests use WebKit browser.
{
name: 'iPhone 11',
use: {
browserName: 'webkit',
...devices['iPhone 11'],
},
},
],
};
module.exports = config;
```
```js js-flavor=ts
// playwright.config.ts
import { PlaywrightTestConfig } from '@playwright/test';
import { devices } from 'playwright';
const config: PlaywrightTestConfig = {
projects: [
// "Pixel 4" tests use Chromium browser.
{
name: 'Pixel 4',
use: {
browserName: 'chromium',
...devices['Pixel 4'],
},
},
// "iPhone 11" tests use WebKit browser.
{
name: 'iPhone 11',
use: {
browserName: 'webkit',
...devices['iPhone 11'],
},
},
],
};
export default config;
```
## Network mocking
You don't have to configure anything to mock network requests. Just define a custom [Route] that mocks network for a browser context.
```js js-flavor=js
// example.spec.js
const { test, expect } = require('@playwright/test');
test.beforeEach(async ({ context }) => {
// Block any css requests for each test in this file.
await context.route(/.css/, route => route.abort());
});
test('loads page without css', async ({ page }) => {
await page.goto('https://playwright.dev');
// ... test goes here
});
```
```js js-flavor=ts
// example.spec.ts
import { test, expect } from '@playwright/test';
test.beforeEach(async ({ context }) => {
// Block any css requests for each test in this file.
await context.route(/.css/, route => route.abort());
});
test('loads page without css', async ({ page }) => {
await page.goto('https://playwright.dev');
// ... test goes here
});
```
Alternatively, you can use [`method: Page.route`] to mock network in a single test.
```js js-flavor=js
// example.spec.js
const { test, expect } = require('@playwright/test');
test('loads page without images', async ({ page }) => {
// Block png and jpeg images.
await page.route(/(png|jpeg)$/, route => route.abort());
await page.goto('https://playwright.dev');
// ... test goes here
});
```
```js js-flavor=ts
// example.spec.ts
import { test, expect } from '@playwright/test';
test('loads page without images', async ({ page }) => {
// Block png and jpeg images.
await page.route(/(png|jpeg)$/, route => route.abort());
await page.goto('https://playwright.dev');
// ... test goes here
});
```

2
types/test.d.ts vendored
View File

@ -1183,7 +1183,7 @@ export type PlaywrightTestOptions = {
viewport: ViewportSize | null | undefined;
/**
* BaseURL used for all the contexts in the test. Takes priority over `contextOptions`.
* `baseURL` used for all pages in the test. Takes priority over `contextOptions`.
* @see BrowserContextOptions
*/
baseURL: string | undefined;