Function writeConfig

test/integration/invalid-custom-routes/test/index.test.ts:10–21

(routes, type = 'redirects')

const nextConfigPath = join(appDir, 'next.config.js')

const writeConfig = async (routes, type = 'redirects') => {
  await fs.writeFile(
    nextConfigPath,
    `
    module.exports = {
      async ${type}() {
        return ${JSON.stringify(routes)}
      }
    }
  `
  )
}

let getStderr
let start