Nuxt/test/utils/build.js

import { loadFixture, Nuxt, Builder } from './index'

export const buildFixture = function buildFixture(fixture) {
  test(`Build ${fixture}`, async () => {
    const config = loadFixture(fixture, {
      test: true,
      build: {
        stats: 'errors-only'
      }
    })
    const nuxt = new Nuxt(config)
    const buildDone = jest.fn()
    nuxt.hook('build:done', buildDone)
    const builder = await new Builder(nuxt).build()
    // 2: BUILD_DONE
    expect(builder._buildStatus).toBe(2)
    expect(buildDone).toHaveBeenCalledTimes(1)
  })
}