Besting

A Jest & Pest inspired testing framework for Bun with zero external dependencies. UI coming soon!

Overview

Besting is a comprehensive testing framework built exclusively for Bun. It provides a fluent, Pest-like API for writing tests with NO external dependencies - everything runs on pure Bun primitives.

Key Features

Zero Dependencies - Lightweight & zero external dependencies
Virtual DOM - Lightning-fast DOM testing without downloading browsers (competing with happy-dom)
Blazing Performance - Optimized for Bun's runtime, faster than happy-dom
Laravel-Inspired - Familiar API from Laravel's testing ecosystem

Installation

bun add -d besting

Features

Fluent, chainable assertions - Make multiple assertions on the same value with a chainable API.
Pest-style syntax - Use a similar style to PHP's Pest testing framework.
Zero overhead - Built directly on Bun's native test runner for maximum performance.
Full compatibility - Works with all of Bun's testing features including lifecycle hooks, snapshots, and more.
Browser Testing - Laravel Dusk-inspired browser testing using Chrome DevTools Protocol (CDP). No Playwright, no Puppeteer - pure Bun!
API Testing - Laravel-inspired API testing utilities for testing HTTP endpoints.
Database Testing - Laravel-inspired database testing with migrations, seeders, and factories.
Authentication Testing - Laravel-inspired authentication testing.
Event Testing - Laravel-inspired event testing with event dispatching and assertions.
Command Testing - Laravel-inspired command testing for terminal commands.
Cache Testing - Utilities for testing cache operations.
Cookie Testing - Utilities for testing cookies.
URL Testing - Utilities for testing URL components.

Basic Usage

import { expect, test } from 'besting'

test('basic addition', () => {
  expect(1 + 1).toBe(2)
})

Chainable Assertions

import { expect, test } from 'besting'

test('multiple assertions on same value', () => {
  expect('Hello World')
    .toContain('Hello')
    .toContain('World')
    .toHaveLength(11)
    .toStartWith('Hello')
    .toEndWith('World')
})

Pest-Style API

import { best } from 'besting'

const p = best()

p.describe('Calculator', () => {
  p.test('addition works', () => {
    p.it(1 + 1).toBe(2)
  })

  p.test('subtraction works', () => {
    p.it(3 - 1).toBe(2)
  })
})

Test Suites

import { describe, expect, test } from 'besting'

describe('Math operations', () => {
  test('addition works', () => {
    expect(1 + 1).toBe(2)
  })

  test('subtraction works', () => {
    expect(3 - 1).toBe(2)
  })
})

Lifecycle Hooks

import { beforeEach, describe, expect, test } from 'besting'

describe('User', () => {
  let user

  beforeEach(() => {
    user = { name: 'John', email: '[email protected]' }
  })

  test('has correct properties', () => {
    expect(user.name).toBe('John')
    expect(user.email).toBe('[email protected]')
  })
})

Test Groups

import { testGroup } from 'besting'

testGroup('Hello World', (str) => {
  // All assertions are against the string 'Hello World'
  str.toContain('Hello')
    .toContain('World')
    .toStartWith('Hello')
    .toEndWith('World')
    .not
    .toBeEmpty()
})

Browser Testing

Besting uses a pure Bun virtual DOM implementation - NO browser downloads needed!

import { browse, test } from 'besting'

test('test with virtual DOM', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')
    await page.assertSee('Example Domain')
    await page.click('#button')
    await page.fill('input[name="email"]', '[email protected]')
  })
})

Benefits:

⚡ Lightning fast (no browser overhead)
🎯 Zero setup (no downloads)
💪 Pure Bun (no dependencies)
🏆 Faster than happy-dom

Virtual DOM Setup

No setup required! Just import and use:

import { browse } from 'besting'

Basic Browser Testing

import { browse, test } from 'besting'

test('visit a website', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')
    await page.assertSee('Example Domain')
    await page.assertTitle('Example Domain')
  })
})

Browser API

import { browser, test } from 'besting'

test('full browser control', async () => {
  const br = browser({ headless: true })

  try {
    await br.launch()
    const page = await br.newPage()

    // Navigate
    await page.goto('https://example.com')

    // Interact with elements
    await page.click('button')
    await page.type('input[name="search"]', 'Hello')
    await page.fill('input[name="email"]', '[email protected]')

    // Select from dropdown
    await page.select('select[name="country"]', 'US')

    // Handle checkboxes
    await page.check('input[type="checkbox"]')
    await page.uncheck('input[type="checkbox"]')

    // Wait for elements
    await page.waitForSelector('.result')
    await page.waitForText('Success')

    // Get element information
    const text = await page.text('h1')
    const value = await page.value('input')
    const isVisible = await page.isVisible('.modal')

    // Execute JavaScript
    const result = await page.evaluate(() => {
      return document.title
    })

    // Take screenshots
    await page.screenshot({ path: 'screenshot.png' })
    await page.screenshot({ fullPage: true })
  }
  finally {
    await br.close()
  }
})

Laravel Dusk-Style Assertions

import { browse, test } from 'besting'

test('Dusk-style assertions', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')

    // Text assertions
    await page.assertSee('Welcome')
    await page.assertDontSee('Error')
    await page.assertSeeIn('.header', 'Logo')

    // Element assertions
    await page.assertPresent('button')
    await page.assertMissing('.error-message')
    await page.assertVisible('.modal')
    await page.assertNotVisible('.hidden')

    // Form assertions
    await page.assertValue('input[name="email"]', '[email protected]')
    await page.assertChecked('input[name="terms"]')
    await page.assertNotChecked('input[name="newsletter"]')
    await page.assertEnabled('button[type="submit"]')
    await page.assertDisabled('button[type="submit"]')

    // Attribute assertions
    await page.assertAttribute('a', 'href', 'https://example.com')
    await page.assertHasClass('.button', 'btn-primary')
    await page.assertHasNotClass('.button', 'disabled')

    // Page assertions
    await page.assertTitle('Example Domain')
    await page.assertTitleContains('Example')
    await page.assertUrlIs('https://example.com/')
    await page.assertUrlContains('example')
  })
})

Form Testing

import { browse, test } from 'besting'

test('fill and submit a form', async () => {
  await browse(async (page) => {
    await page.goto('https://myapp.com/contact')

    // Fill form fields
    await page.fill('input[name="name"]', 'John Doe')
    await page.fill('input[name="email"]', '[email protected]')
    await page.fill('textarea[name="message"]', 'Hello!')

    // Select from dropdown
    await page.select('select[name="subject"]', 'inquiry')

    // Check agreement
    await page.check('input[name="agree"]')

    // Submit form
    await page.click('button[type="submit"]')

    // Assert success
    await page.waitForText('Thank you')
    await page.assertSee('Your message has been sent')
  })
})

Screenshots and Debugging

import { browse, test } from 'besting'

test('take screenshots for debugging', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')

    // Take a regular screenshot
    const screenshot = await page.screenshot()

    // Save screenshot to file
    await page.screenshot({ path: 'example.png' })

    // Take full page screenshot
    await page.screenshot({
      path: 'full-page.png',
      fullPage: true
    })

    // Take JPEG screenshot with quality
    await page.screenshot({
      path: 'example.jpg',
      type: 'jpeg',
      quality: 80
    })
  })
})

Browser Configuration

import { browser, test } from 'besting'

test('configure browser options', async () => {
  // Use Chromium (default)
  const chromiumBrowser = browser({
    browser: 'chromium', // Browser type: 'chromium' or 'firefox'
    headless: true, // Run in headless mode (default: true)
    width: 1920, // Viewport width (default: 1280)
    height: 1080, // Viewport height (default: 720)
    timeout: 30000, // Default timeout in ms (default: 30000)
    devtools: false, // Open DevTools (default: false)
  })

  // Use Firefox
  const firefoxBrowser = browser({
    browser: 'firefox',
    headless: true,
  })

  try {
    await chromiumBrowser.launch()
    const page = await chromiumBrowser.newPage()

    // You can also change viewport size after launch
    await page.setViewport(1024, 768)

    await page.goto('https://example.com')
  }
  finally {
    await chromiumBrowser.close()
  }
})

Testing with Firefox

import { browser, test } from 'besting'

test('test with Firefox', async () => {
  const br = browser({ browser: 'firefox' })

  try {
    await br.launch()
    const page = await br.newPage()

    await page.goto('https://example.com')
    await page.assertSee('Example Domain')
    await page.assertTitle('Example Domain')
  }
  finally {
    await br.close()
  }
})

Multiple Pages

import { browser, test } from 'besting'

test('work with multiple pages', async () => {
  const br = browser()

  try {
    await br.launch()

    // Create multiple pages
    const page1 = await br.newPage()
    const page2 = await br.newPage()

    // Navigate independently
    await page1.goto('https://example.com')
    await page2.goto('https://httpbin.org')

    // Interact with each page
    await page1.assertSee('Example Domain')
    await page2.assertSee('httpbin')
  }
  finally {
    await br.close()
  }
})

Advanced Mouse Interactions

import { browse, test } from 'besting'

test('mouse interactions', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')

    // Hover over an element
    await page.hover('.menu-item')

    // Double click
    await page.doubleClick('.selectable-text')

    // Right click
    await page.rightClick('.context-menu-trigger')

    // Drag and drop
    await page.drag('.draggable', '.drop-zone')
  })
})

Cookie Management

import { browse, test } from 'besting'

test('manage cookies', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')

    // Set a cookie
    await page.setCookie('session', 'abc123', {
      domain: 'example.com',
      path: '/',
      secure: true,
      httpOnly: true,
      sameSite: 'Strict'
    })

    // Get all cookies
    const cookies = await page.getCookies()

    // Get specific cookie
    const sessionCookie = await page.getCookie('session')

    // Delete a cookie
    await page.deleteCookie('session')

    // Clear all cookies
    await page.clearCookies()
  })
})

Local Storage & Session Storage

import { browse, test } from 'besting'

test('storage operations', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')

    // Local Storage
    await page.setLocalStorage('theme', 'dark')
    const theme = await page.getLocalStorage('theme')
    await page.removeLocalStorage('theme')
    await page.clearLocalStorage()

    // Session Storage
    await page.setSessionStorage('tab', 'home')
    const tab = await page.getSessionStorage('tab')
    await page.removeSessionStorage('tab')
    await page.clearSessionStorage()
  })
})

Scrolling

import { browse, test } from 'besting'

test('scroll operations', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')

    // Scroll to specific coordinates
    await page.scrollTo(0, 500)

    // Scroll to an element
    await page.scrollToElement('#footer')

    // Scroll to top
    await page.scrollToTop()

    // Scroll to bottom
    await page.scrollToBottom()
  })
})

Dialog Handling

import { browse, test } from 'besting'

test('handle dialogs', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')

    // Set up dialog handler
    await page.onDialog(async (message) => {
      console.log('Dialog message:', message)

      // Return true to accept, false to dismiss
      if (message.includes('confirm')) {
        return true
      }

      // Return string for prompt dialogs
      if (message.includes('name')) {
        return 'John Doe'
      }

      return false
    })

    // Or accept/dismiss manually
    await page.acceptDialog()
    await page.dismissDialog()
  })
})

File Uploads

import { browse, test } from 'besting'

test('upload files', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com/upload')

    // Upload single file
    await page.uploadFile('input[type="file"]', '/path/to/file.pdf')

    // Upload multiple files
    await page.uploadFile(
      'input[type="file"][multiple]',
      '/path/to/file1.jpg',
      '/path/to/file2.jpg'
    )

    await page.click('button[type="submit"]')
  })
})

Console Log Capture

import { browse, test } from 'besting'

test('capture console logs', async () => {
  await browse(async (page) => {
    // Start capturing console logs
    await page.startConsoleCapture()

    await page.goto('https://example.com')

    // Execute some JavaScript that logs to console
    await page.evaluate(() => {
      console.log('Hello from the browser!')
      console.error('An error occurred')
    })

    // Get captured logs
    const logs = page.getConsoleLogs()
    console.log(logs)
    // [
    //   { type: 'log', message: 'Hello from the browser!', timestamp: 1234567890 },
    //   { type: 'error', message: 'An error occurred', timestamp: 1234567891 }
    // ]

    // Clear logs
    page.clearConsoleLogs()
  })
})

PDF Generation

import { browse, test } from 'besting'

test('generate PDF', async () => {
  await browse(async (page) => {
    await page.goto('https://example.com')

    // Generate PDF
    await page.pdf({ path: 'page.pdf' })

    // Generate PDF with options
    await page.pdf({
      path: 'page.pdf',
      format: 'A4',
      printBackground: true,
      landscape: true,
      scale: 0.8,
      marginTop: 10,
      marginBottom: 10,
      marginLeft: 10,
      marginRight: 10
    })
  })
})

Network Control

import { browse, test } from 'besting'

test('network control', async () => {
  await browse(async (page) => {
    // Set offline mode
    await page.setOffline(true)
    await page.goto('https://example.com') // Will fail

    await page.setOffline(false)

    // Throttle network
    await page.setNetworkThrottle('slow3G')
    await page.goto('https://example.com')

    // Fast 3G
    await page.setNetworkThrottle('fast3G')

    // No throttling
    await page.setNetworkThrottle('none')

    // Intercept requests
    await page.interceptRequest('*.jpg', (request) => {
      console.log('Image request intercepted:', request.url)
    })
  })
})

Mobile Emulation

import { browse, test } from 'besting'

test('mobile emulation', async () => {
  await browse(async (page) => {
    // Emulate iPhone
    await page.emulateDevice('iPhone')
    await page.goto('https://example.com')

    // Emulate iPad
    await page.emulateDevice('iPad')

    // Emulate Pixel
    await page.emulateDevice('Pixel')

    // Emulate Galaxy
    await page.emulateDevice('Galaxy')

    // Custom user agent
    await page.setUserAgent('Mozilla/5.0 (Custom Device) ...')

    // Set geolocation
    await page.setGeolocation(37.7749, -122.4194) // San Francisco

    // Enable touch emulation
    await page.setTouchEmulation(true)
  })
})

API Testing

Besting includes Laravel-inspired API testing utilities for testing HTTP endpoints.

Basic API Testing

import { api, assertResponse, test } from 'besting'

test('Basic API test', async () => {
  // Make a GET request to an API
  const response = await api('https://api.example.com')
    .get('/users/1')

  // Assert on the response
  const assertion = await assertResponse(response).assertOk()
  await assertion.assertStatus(200)
  await assertion.assertHeader('content-type')

  // Get and assert on JSON data
  const data = await response.json()
  expect(data).toHaveProperty('id', 1)
})

HTTP Methods

import { api, assertResponse, test } from 'besting'

test('Testing different HTTP methods', async () => {
  const baseApi = api('https://api.example.com')

  // GET with query parameters
  const getResponse = await baseApi
    .withQuery({ filter: 'active' })
    .get('/users')

  // POST with JSON data
  const postResponse = await baseApi
    .post('/users', { name: 'John', email: '[email protected]' })

  // PUT to update a resource
  const putResponse = await baseApi
    .put('/users/1', { name: 'Updated Name' })

  // DELETE a resource
  const deleteResponse = await baseApi
    .delete('/users/1')
})

Authentication

import { api, test } from 'besting'

test('Authenticated API requests', async () => {
  // Using Bearer token
  const tokenResponse = await api('https://api.example.com')
    .withToken('your-auth-token')
    .get('/secured-endpoint')

  // Using Basic Authentication
  const basicAuthResponse = await api('https://api.example.com')
    .withBasicAuth('username', 'password')
    .get('/secured-endpoint')
})

JSON Assertions

import { api, assertResponse, test } from 'besting'

test('Testing JSON responses', async () => {
  const response = await api('https://api.example.com')
    .get('/users/1')

  // Assert on specific JSON paths
  const assertion = await assertResponse(response)
  await assertion.assertJsonPath('name', 'John Doe')
  await assertion.assertJsonPath('email')
  await assertion.assertJsonPath('address.city', 'New York')

  // Assert on the entire JSON structure
  await assertion.assertJson({
    id: 1,
    name: 'John Doe',
    email: '[email protected]'
  })
})

Configuration

import { api, test } from 'besting'

test('Configuring API requests', async () => {
  const response = await api('https://api.example.com')
    .withHeaders({
      'X-Custom-Header': 'Value',
      'Accept-Language': 'en-US'
    })
    .withTimeout(5000) // 5 seconds timeout
    .withJson() // Ensure JSON content type
    .get('/endpoint')
})

Cache Testing

Besting includes utilities for testing cache operations, inspired by Laravel's cache assertions.

Basic Cache Testing

import { cache, test } from 'besting'

test('Basic cache operations', async () => {
  const cacheStore = cache()

  // Store a value in cache
  await cacheStore.set('user_id', 1)

  // Assert that the key exists
  await cacheStore.assertHas('user_id')

  // Get a value from cache
  const userId = await cacheStore.get('user_id')

  // Delete a key
  await cacheStore.delete('user_id')

  // Assert that the key is gone
  await cacheStore.assertMissing('user_id')
})

Expiration Testing

import { cache, test } from 'besting'

test('Cache expiration', async () => {
  const cacheStore = cache()

  // Set a value with a 1 second TTL
  await cacheStore.set('temp', 'value', 1)

  // Value should exist initially
  await cacheStore.assertExists('temp')

  // Wait for expiration
  await new Promise(resolve => setTimeout(resolve, 1100))

  // Value should be gone after TTL expires
  await cacheStore.assertNotExists('temp')
})

Cookie Testing

Besting includes utilities for testing cookies, compatible with both browser and server environments.

Basic Cookie Testing

import { cookie, test } from 'besting'

test('Basic cookie operations', () => {
  const cookieJar = cookie()

  // Set cookies
  cookieJar
    .set('session_id', '123456789')
    .set('theme', 'dark')

  // Assert cookies exist
  cookieJar
    .assertHas('session_id')
    .assertHas('theme')

  // Assert cookie values
  cookieJar
    .assertValue('session_id', '123456789')
    .assertValue('theme', 'dark')

  // Remove a cookie
  cookieJar.remove('theme')

  // Assert cookie is gone
  cookieJar.assertMissing('theme')
})

URL Testing

Besting includes utilities for testing URL components.

Basic URL Testing

import { test, url } from 'besting'

test('URL component testing', () => {
  const testUrl = url('https://example.com/users?sort=asc&page=1#profile')

  // Assert URL components
  testUrl
    .hasProtocol('https')
    .hasHost('example.com')
    .hasPath('/users')
    .hasQuery('sort', 'asc')
    .hasQuery('page', '1')
    .hasFragment('profile')

  // Check for absence of query parameters
  testUrl.doesntHaveQuery('filter')

  // Get URL components
  console.log(testUrl.path) // '/users'
  console.log(testUrl.queryParams) // { sort: 'asc', page: '1' }
})

Special Matchers

Besting includes all matchers from Bun's test runner, plus additional Pest-inspired matchers:

toStartWith(prefix) - Assert that a string starts with a prefix
toEndWith(suffix) - Assert that a string ends with a suffix
toBeEmpty() - Assert that a string, array, or object is empty
toPass(validator, message?) - Assert that a value passes a custom validation function

Performance

Besting's virtual DOM is built to outperform happy-dom while maintaining zero dependencies.

Run Benchmarks

# Run performance benchmarks (using mitata)
bun run bench

# Run bun:test benchmarks
bun run bench:bun

Our benchmarks test:

Document creation - Fast initialization of virtual DOM documents
HTML parsing - Parsing small, medium, and large HTML documents
Query selectors - getElementById, querySelector, querySelectorAll by ID, class, tag, and attribute
DOM manipulation - appendChild, removeChild, textContent operations
Attribute operations - Getting and setting element attributes
ClassList operations - Adding, removing, toggling CSS classes
innerHTML operations - Setting and reading HTML content
Memory efficiency - Large DOM tree creation and manipulation

Benchmark Results

Running on Apple M3 Pro @ 3.5 GHz with Bun 1.2.24:

Operation	Performance
`createDocument()`	~120 ns/iter
`createElement`	~26 ns/iter
`querySelector by ID`	~10 ns/iter
`querySelector by class`	~11 ns/iter
`parse small HTML`	~450 ns/iter
`parse medium HTML`	~3.2 µs/iter
`appendChild (1000x)`	~43 µs/iter
`setAttribute`	~4.7 ns/iter
`classList.add`	~436 ns/iter
`innerHTML set`	~2.3 µs/iter

Result: Blazing fast DOM operations with ZERO dependencies! 🚀

Database Testing

Besting includes Laravel-inspired database testing utilities with migrations, seeders, and factories.

Basic Database Testing

import { db, migration, seeder, test } from 'besting'

// Define a migration
migration(async (connection) => {
  await connection.raw('CREATE TABLE users (id INT, name TEXT, email TEXT)')
})

// Define a seeder
seeder(async (connection) => {
  await connection.table('users').insert([
    { id: 1, name: 'John', email: '[email protected]' },
    { id: 2, name: 'Jane', email: '[email protected]' },
  ])
})

test('Basic database operations', async () => {
  const database = db().register(yourDatabaseConnection)

  // Run migrations and seeders
  await database.migrate()
  await database.seed()

  // Query data
  const users = await database.select('users')
  expect(users.length).toBe(2)

  // Insert data
  await database.insert('users', { id: 3, name: 'Alice', email: '[email protected]' })

  // Make assertions
  await database.assertExists('users', { id: 3 })
  await database.assertSame('users', { id: 3 }, { name: 'Alice' })
})

Database Transactions

import { db, test, useTransaction } from 'besting'

test('Database transactions', async () => {
  const database = db().register(yourDatabaseConnection)

  // Use transactions to isolate tests
  await database.beginTransaction()

  // Make changes
  await database.insert('users', { id: 3, name: 'Alice', email: '[email protected]' })

  // Rollback changes
  await database.rollbackTransaction()

  // Use the transaction helper
  const transactionTest = useTransaction(async (db) => {
    // This code runs within a transaction
    await db.insert('users', { id: 4, name: 'Bob', email: '[email protected]' })
  })

  await transactionTest()
})

Database Factories

import { db, test } from 'besting'

test('Database factories', async () => {
  const database = db().register(yourDatabaseConnection)

  // Create a user factory
  const userFactory = database.factory('users')
    .define({
      name: 'Default User',
      email: '[email protected]',
    })
    .state('admin', user => ({
      ...user,
      name: 'Admin User',
      email: '[email protected]',
    }))

  // Create a default user
  await userFactory.create({ id: 10 })

  // Create an admin user
  await userFactory.has('admin').create({ id: 11 })

  // Create multiple users
  await userFactory.count(3).create()

  // Make model instances without persisting
  const user = userFactory.make()
})

Event Testing

Besting includes Laravel-inspired event testing utilities for testing event dispatching.

Basic Event Testing

import { defineEvent, events, fakeEvents, test } from 'besting'

// Define event classes
class UserCreated {
  constructor(public id: number, public name: string) {}
}

// Define an event using the helper
const OrderShipped = defineEvent({
  id: 0,
  trackingNumber: '',
})

test('Basic event testing', () => {
  const fake = fakeEvents()

  // Dispatch events
  events().dispatch(new UserCreated(1, 'John'))
  events().dispatch(new UserCreated(2, 'Jane'))

  // Make assertions
  fake.assertDispatched('UserCreated')
  fake.assertDispatchedTimes('UserCreated', 2)
  fake.assertNotDispatched('OrderShipped')

  // Check specific events
  fake.assertDispatched('UserCreated', event => event.id === 1)
})

Event Listeners

import { events, listener, test } from 'besting'

class UserCreated {
  constructor(public id: number, public name: string) {}
}

class EventListener {
  events: any[] = []

  @listener(UserCreated.name)
  handleUserCreated(event: UserCreated) {
    this.events.push(event)
  }
}

test('Event listeners', () => {
  const listener = new EventListener()

  // Dispatch an event
  events().dispatch(new UserCreated(1, 'John'))

  // Check that the listener received it
  expect(listener.events.length).toBe(1)
  expect(listener.events[0].name).toBe('John')
})

Authentication Testing

Besting includes Laravel-inspired authentication testing utilities.

Basic Authentication Testing

import { auth, test } from 'besting'

test('Authentication testing', () => {
  // Define a user
  const user = {
    id: 1,
    name: 'Test User',
    email: '[email protected]',
  }

  // Set the authenticated user
  auth().actingAs(user)

  // Make assertions
  auth().assertAuthenticated()
  expect(auth().user().id).toBe(1)

  // Act as guest
  auth().actingAsGuest()
  auth().assertGuest()
})

With Auth Helper

import { auth, test, withAuth } from 'besting'

test('With auth helper', () => {
  const user = {
    id: 1,
    name: 'Test User',
    email: '[email protected]',
  }

  // Create request with auth context
  const request = withAuth(user)

  expect(request.user).toBe(user)
  expect(request.auth.check()).toBe(true)
})

Command Testing

Besting includes utilities for testing terminal commands, including Laravel-inspired Artisan command testing.

Basic Command Testing

import { command, test } from 'besting'

test('Command testing', async () => {
  const cmd = command()

  // Execute a command
  const result = await cmd.execute('echo', ['Hello, World!'])

  // Make assertions
  cmd
    .assertExitCode(0)
    .assertOutputContains('Hello')
    .assertOutputNotContains('error')
})

Testing

Besting uses Bun's native test runner, providing a seamless testing experience with all of Bun's built-in test features.

# Run all tests with Bun's standard test runner
bun test

# Run all tests with our custom runner (ensures all test files are executed)
bun run test:custom

# Run a specific test file
bun test path/to/test.ts

# Run tests with debugging enabled
bun run test:debug

Besting seamlessly integrates with Bun's test runner, allowing you to:

Use all of Bun's test features (snapshots, mocks, etc.)
Get beautifully formatted test output
Run tests in parallel for better performance

Note: Bun's test runner may sometimes have issues discovering or executing all test files (see Bun issue #3506). If you notice that some test files are not being executed, you can use our custom test runner with bun run test:custom, which ensures all test files are discovered and executed individually.

Changelog

Please see our releases page for more information on what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Community

For help, discussion about best practices, or any other conversation that would benefit from being searchable:

Discussions on GitHub

For casual chit-chat with others using this package:

Join the Stacks Discord Server

Postcardware

"Software that is free, but hopes for a postcard." We love receiving postcards from around the world showing where Stacks is being used! We showcase them on our website too.

Our address: Stacks.js, 12665 Village Ln #2306, Playa Vista, CA 90094, United States 🌎

License

The MIT License (MIT). Please see LICENSE for more information.

Made with 💙

Name		Name	Last commit message	Last commit date
Latest commit History 73 Commits
.github		.github
.vscode		.vscode
.zed		.zed
docs		docs
packages		packages
scripts		scripts
.editorconfig		.editorconfig
.gitattributes		.gitattributes
.gitignore		.gitignore
CHANGELOG.md		CHANGELOG.md
LICENSE.md		LICENSE.md
README.md		README.md
besting		besting
besting.config.ts		besting.config.ts
buddy-bot.config.ts		buddy-bot.config.ts
bun.lock		bun.lock
bunfig.toml		bunfig.toml
deps.yaml		deps.yaml
eslint.config.ts		eslint.config.ts
package.json		package.json
tsconfig.json		tsconfig.json

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Besting

Overview

Key Features

Installation

Features

Basic Usage

Chainable Assertions

Pest-Style API

Test Suites

Lifecycle Hooks

Test Groups

Browser Testing

Virtual DOM Setup

Basic Browser Testing

Browser API

Laravel Dusk-Style Assertions

Form Testing

Screenshots and Debugging

Browser Configuration

Testing with Firefox

Multiple Pages

Advanced Mouse Interactions

Cookie Management

Local Storage & Session Storage

Scrolling

Dialog Handling

File Uploads

Console Log Capture

PDF Generation

Network Control

Mobile Emulation

API Testing

Basic API Testing

HTTP Methods

Authentication

JSON Assertions

Configuration

Cache Testing

Basic Cache Testing

Expiration Testing

Cookie Testing

Basic Cookie Testing

URL Testing

Basic URL Testing

Special Matchers

Performance

Run Benchmarks

Benchmark Results

Database Testing

Basic Database Testing

Database Transactions

Database Factories

Event Testing

Basic Event Testing

Event Listeners

Authentication Testing

Basic Authentication Testing

With Auth Helper

Command Testing

Basic Command Testing

Testing

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