text: import Vue from '../../dist/vue.common.js'
  import { createRenderer } from '../../packages/vue-server-renderer'
  import '../helpers/to-have-been-warned.js'
  
  describe('SSR: VUE_ENV=server', () => {
    it('_isServer set as "server" on Vue config', () => {
      expect(Vue.config._isServer).toBe(true)
    })
  
    it('$isServer set as true on VM', () => {
      const vm = new Vue({
        data: {
          foo: 'server',
          bar: 'rendering'
        }
      })
      expect(vm.$isServer).toBe(true)
    })
  
    it('no data observations', () => {
      const vm = new Vue({
        data: {
          foo: 'server',
          bar: 'rendering'
        },
        computed: {
          combined () {
            return this.foo + this.bar
          }
        }
      })
  
      vm.foo = ''
      expect(vm.foo).toBe('')
      expect(vm.combined).toBe('rendering')
      expect(vm.$data.__ob__).toBe(undefined)
    })
  
    it('should warn when not set', () => {
      process.env.VUE_ENV = ''
      createRenderer()
      expect('You are using createRenderer without setting VUE_ENV environment').toHaveBeenWarned()
      process.env.VUE_ENV = 'server'
    })
  })
  