import HelpScout from './HelpScout'

describe('HelpScout', () => {
  describe('getInstallationIds', () => {
    it('should return single installation ID from window.name', () => {
      window.name = 'app-aGsdsa556AD'

      const result = new HelpScout().getInstallationIds()

      expect(result).toEqual(['aGsdsa556AD'])
    })

    it('should return multiple installation IDs from window.name', () => {
      window.name = 'app-aGsdsa556AD-JHGF65hgjGH'

      const result = new HelpScout().getInstallationIds()

      expect(result).toEqual(['aGsdsa556AD', 'JHGF65hgjGH'])
    })

    it('should return empty array when no ID in window.name', () => {
      window.name = 'app-'

      const result = new HelpScout().getInstallationIds()

      expect(result).toEqual([])
    })

    it('should return empty array when window.name has no "app-" prefix', () => {
      window.name = 'something else'

      const result = new HelpScout().getInstallationIds()

      expect(result).toEqual([])
    })
  })
})