@serenity-js/playwright-test
v3.29.5
Published
Serenity/JS test runner adapter for Playwright Test, combining Playwright's developer experience with the advanced reporting and automation capabilities of Serenity/JS
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Serenity/JS
Serenity/JS is an innovative open-source framework designed to make acceptance and regression testing of complex software systems faster, more collaborative and easier to scale.
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- Serenity/JS web testing tutorial
- Serenity/JS Handbook and Getting Started guides
- API documentation
- Serenity/JS Project Templates on GitHub
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- Meet other Serenity/JS developers and maintainers on the Serenity/JS Community chat channel,
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Serenity/JS Playwright Test
@serenity-js/playwright-test
module offers a Serenity/JS reporter
and fixtures that integrate Playwright Test with Serenity/JS Screenplay Pattern APIs.
Installation
To install this module, use an existing Playwright Test project or generate a new one by running:
npm init playwright@latest
Install the below Serenity/JS modules in your Playwright Test project directory:
npm install --save-dev @serenity-js/assertions @serenity-js/console-reporter @serenity-js/core @serenity-js/serenity-bdd @serenity-js/web @serenity-js/playwright @serenity-js/playwright-test
To learn more about Serenity/JS and how to use it on your project, follow the Serenity/JS Getting Started guide for Playwright Test.
Serenity/JS Playwright Fixtures
To use Serenity/JS Screenplay Pattern APIs and benefit from the in-depth reporting capabilities, import Serenity/JS test fixtures instead of the default ones:
// example.spec.ts
+ import { test } from '@serenity-js/playwright-test'
- import { test } from '@playwright/test'
test.describe('Serenity Screenplay with Playwright', () => {
test.describe('New Todo', () => {
test('should allow me to add todo items', async ({ page }) => {
//...
})
})
})
If you prefer, Serenity/JS also offers the more concise BDD-style describe/it
syntax:
// example.spec.ts
import { describe, it, test } from '@serenity-js/playwright-test'
test.use({
headless: true,
})
describe('Serenity Screenplay with Playwright', () => {
describe('New Todo', () => {
it('should allow me to add todo items', async ({ page }) => {
//...
})
})
})
Serenity/JS Screenplay Pattern Actors
Serenity/JS test fixtures simplify how you instantiate and use Serenity/JS Screenplay Pattern Actors.
Single-actor scenarios
If your tests need only a single actor, you can inject it using the actor
fixture.
To configure the name of your default actor, use the defaultActorName
configuration property:
// example.spec.ts
import { describe, it, test } from '@serenity-js/playwright-test' // import fixtures
import { Navigate, Page } from '@serenity-js/playwright' // import Screenplay Pattern web APIs
import { Ensure, equals } from '@serenity-js/assertions' // import Screenplay Pattern assertion APIs
test.use({
headless: true,
defaultActorName: 'Serena' // change default actor name
})
describe('Serenity Screenplay with Playwright', () => {
describe('New Todo', () => {
// inject default actor:
it('should allow me to add todo items', async ({ actor }) => {
// define test workflow
await actor.attemptsTo(
Navigate.to('https://todo-app.serenity-js.org/'),
Ensure.that(Page.current().title(), equals('Serenity/JS TodoApp')),
)
})
})
})
Multi-actor scenarios
For multi-actor scenarios where you need each actor to use a separate browser, use the actorCalled
fixture.
You can also use this pattern to override the default actor name on a per-scenario basis:
// example.spec.ts
import { describe, it, test } from '@serenity-js/playwright-test' // import fixtures
describe('Serenity Screenplay with Playwright', () => {
describe('Chat app', () => {
it('should allow actors to send and receive messages', async ({ actorCalled }) => {
// define part of the workflow performed by the first actor:
await actorCalled('Alice').attemptsTo(
// navigate to a chat app
// post a message to Bob
)
// define parts of the workflow performed by the any other actors:
await actorCalled('Bob').attemptsTo(
// navigate to a chat app
// post a reply to Alice
)
// Note that invoking actorCalled(name) multiple times
// while using the same name and within the scope of a single test
// returns the same actor, so you don't need to cache them:
await actorCalled('Alice').attemptsTo(
// check if the reply from Bob is received
)
})
})
})
Customising Actors
The default cast of actors is limited to using a single ability
to BrowseTheWebWithPlaywright
.
If you'd like to give your actors additional abilities, like to TakeNotes
,
CallAnApi
,
or ManageALocalServer
, you can install the relevant Serenity/JS module
and configure them as follows:
// example.spec.ts
import { Cast, TakeNotes } from '@serenity-js/core'
import { test } from '@serenity-js/playwright-test'
import { BrowseTheWebWithPlaywright } from '@serenity-js/playwright'
import { CallAnApi } from '@serenity-js/rest'
test.use({
actors: async ({ browser, baseURL }, use) => {
await use(
Cast.where(actor => actor.whoCan(
BrowseTheWebWithPlaywright.using(browser),
TakeNotes.usingAnEmptyNotepad(),
CallAnApi.at(baseURL),
))
)
},
})
For scenarios where different actors need to be configured differently, you can also implement your own Cast
:
// example.spec.ts
import { Cast } from '@serenity-js/core'
import { BrowseTheWebWithPlaywright, PlaywrightOptions } from '@serenity-js/playwright'
import { test } from '@serenity-js/playwright-test'
import { CallAnApi } from '@serenity-js/rest'
import { Browser } from 'playwright'
class Actors implements Cast {
constructor(
private readonly browser: Browser,
private readonly options: PlaywrightOptions,
) {
}
prepare(actor: Actor) {
switch (actor.name) {
case 'James':
return actor.whoCan(BrowseTheWebWithPlaywright.using(this.browser, this.options))
default:
return actor.whoCan(CallAnApi.at(this.options.baseURL))
}
}
}
test.use({
actors: async ({ browser, config }) => {
await use(new Actors(browser, {
defaultNavigationWaitUntil: 'domcontentloaded'
}))
}
})
Customising test fixtures
useFixtures
lets you configure
Serenity/JS Screenplay Pattern actors in a single place,
and define custom test fixtures if needed.
// my-custom-api.ts
export const {
describe, it, test, beforeAll, beforeEach, afterEach, afterAll, expect
} = useFixtures<{ email: string }>({
// Override Serenity/JS fixtures:
actors: async ({ browser, baseURL }, use) => {
await use(
Cast.where(actor => actor.whoCan(
BrowseTheWebWithPlaywright.using(browser),
TakeNotes.usingAnEmptyNotepad(),
CallAnApi.at(baseURL),
))
)
},
// Add your own fixtures:
email: async ({ actor }, use) => {
await use(`${ actor.name }@example.org`);
},
})
With the custom test API definition in place, use it in your test files instead of the default one:
// example.spec.ts
import { Log } from '@serenity-js/core'
import { describe, it, test } from './my-custom-api' // Note the custom test API
describe('Serenity Screenplay with Playwright', () => {
describe('New Todo', () => {
// inject default actor:
it('should allow me to add todo items', async ({ actor, email }) => {
// define test workflow
await actor.attemptsTo(
Log.the(email),
)
})
})
})
UI Component Testing
You can use Serenity/JS and Playwright Test to write UI component tests and reuse your test code between component and end-to-end test suites.
To get started with component testing:
- Follow the Playwright Test Component Testing tutorial to configure your component test suite,
- Use Serenity/JS test fixtures instead of the default ones.
// src/App.spec.tsx
- import { test, expect } from '@playwright/experimental-ct-react'
+ import { test as componentTest } from '@playwright/experimental-ct-react'
+ import { useBase } from '@serenity-js/playwright-test'
+ const { test, expect } = useBase(componentTest)
import App from './App'
test.use({ viewport: { width: 500, height: 500 } })
test('should work', async ({ mount }) => {
const component = await mount(<App />)
await expect(component).toContainText('Learn React')
})
Using Serenity/JS Screenplay Pattern Actors for Component Testing
Serenity/JS useBase(test)
creates
a test API that gives you access to all the SerenityFixtures
you could access in any other regular end-to-end test.
This capability allows you to use Serenity/JS Actors and design and experiment with your Screenplay Pattern Tasks before incorporating them in your high-level acceptance and end-to-end tests.
import { test as componentTest } from '@playwright/experimental-ct-react'
import { Ensure, contain } from '@serenity-js/assertions'
import { useBase } from '@serenity-js/playwright-test'
import { Enter, PageElement, CssClasses } from '@serenity-js/web'
import EmailInput from './EmailInput'
const { it, describe } = useBase(componentTest).useFixtures<{ emailAddress: string }>({
emailAddress: ({ actor }, use) => {
use(`${ actor.name }@example.org`)
}
})
describe('EmailInput', () => {
it('allows valid email addresses', async ({ actor, mount, emailAddress }) => {
const nativeComponent = await mount(<EmailInput/>)
const component = PageElement.from(nativeComponent)
await actor.attemptsTo(
Enter.theValue(emailAddress).into(component),
Ensure.that(CssClasses.of(component), contain('valid')),
)
})
})
Serenity Reports
To use Serenity/JS reporting capabilities, register the @serenity-js/playwright-test
reporter in your
playwright.config.ts
and define the appropriate reporting services (a.k.a. your "stage crew").
For example, to enable Serenity/JS Console Reporter and Serenity BDD Reporter, install the relevant modules:
npm install --save-dev @serenity-js/console-reporter @serenity-js/serenity-bdd
Next, configure your Playwright project as follows:
// playwright.conf.ts
import type { PlaywrightTestConfig } from '@playwright/test'
const config: PlaywrightTestConfig = {
testDir: './spec',
reporter: [
[ '@serenity-js/playwright-test', {
crew: [
'@serenity-js/console-reporter',
[ '@serenity-js/serenity-bdd', { specDirectory: './spec' } ],
[ '@serenity-js/core:ArtifactArchiver', { outputDirectory: 'target/site/serenity' } ],
// '@serenity-js/core:StreamReporter',
]
}],
// optional
[ 'html', { open: 'never' } ], // built-in Playwright HTML reporter
],
// Other configuration omitted for brevity
// For details, see https://playwright.dev/docs/test-configuration
}
export default config
Note that Serenity/JS reporters work well with the built-in Playwright reporters.
Reference implementation
You can find a reference implementation demonstrating how to integrate Serenity/JS with Playwright Test in the Serenity/JS GitHub repository.
📣 Stay up to date
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