message: update BorderBox test
diff: @@ -2,7 +2,7 @@ import React from 'react'
  import theme, {colors} from '../theme'
  import BorderBox from '../BorderBox'
  import {render} from '../utils/testing'
  -import {LAYOUT} from '../system-props'
  +import {LAYOUT} from '../constants'
  describe('BorderBox', () => {
  it('implements layout system props', () => {
  