Function fastifyPlugin

test/plugin.1.test.js:179–183

(instance, opts, done)

  const fastify = Fastify()

  function fastifyPlugin (instance, opts, done) {
    instance.decorate('test', 'first')
    t.assert.ok(instance.test)
    done()
  }

  function innerPlugin (instance, opts, done) {
    instance.decorate('test2', 'second')