One framework for
API & UI testing.

Feature: User API Tests

Scenario: Create and verify a new user
  Given url 'https://api.example.com/users'
  And request { name: 'John', email: 'john@test.com' }
  When method post
  Then status 201
  And match response.name == 'John'
  And match response.id == '#notnull'

Feature: Browser Login Flow

Scenario: User signs in to the dashboard
  Given driver 'https://app.example.com/login'
  And input('#email', 'jane@test.com')
  And input('#password', 's3cret!')
  When click('{^}Sign In')
  Then match driver.url contains '/dashboard'
  And match text('.welcome') == 'Welcome, Jane'

// Reuse the same .feature as a Gatling load test
class UserPerfTest extends Simulation {

  val users = karateFeature("classpath:users.feature")

  setUp(
    scenario("create users").exec(users)
      .inject(rampUsers(100).during(10))
  ).assertions(global.responseTime.max.lt(2000))
}

Feature: User Service Mock

Background:
  * def users = []

Scenario: pathMatches('/users') && methodIs('post')
  * def user = { id: '#(~~users.length)', name: request.name }
  * users.push(user)
  * def response = user
  * def responseStatus = 201