import subject from '../client/AppContext'

const fakeContext = {
  appContext: {
    appName: 'app-name',
    appVersion: '123',
    edition: 'uk',
    product: 'next',
    abTestState: 'someCohort:on',
    isProduction: true
  }
}

describe('dotcom-ui-app-context/src/client/AppContext', () => {
  let instance

  beforeEach(() => {
    instance = new subject(fakeContext)
  })

  describe('.get()', () => {
    it('returns the value of an existing app context', () => {
      expect(instance.get('appName')).toBe('app-name')
      expect(instance.get('isProduction')).toBe(true)
    })

    it('returns undefined for contexts which do not exist', () => {
      expect(instance.get('foo')).toBeUndefined()
    })
  })

  describe('.getAll()', () => {
    it('returns all app context data', () => {
      expect(instance.getAll()).toEqual(fakeContext.appContext)
    })

    it('freezes the app context data', () => {
      expect(Object.isFrozen(instance.getAll())).toBe(true)
    })
  })
})