test: remove mixins in live reloading

test/basic.dev.test.js

@@ -1,18 +1,26 @@
 import test from 'ava'
 import { resolve } from 'path'
+import stdMocks from 'std-mocks'
 // import rp from 'request-promise-native'
-import { Nuxt, Builder } from '../index.js'
+import { Nuxt, Builder, Utils } from '../index.js'
+import { truncateSync, readFileSync, writeFileSync } from 'fs'
 
 const port = 4001
 const url = (route) => 'http://localhost:' + port + route
+const rootDir = resolve(__dirname, 'fixtures/basic')
+const pluginPath = resolve(rootDir, 'plugins', 'watch.js')
+const pluginContent = readFileSync(pluginPath)
 
 let nuxt = null
 
 // Init nuxt.js and create server listening on localhost:4000
 test.before('Init Nuxt.js', async t => {
   const options = {
-    rootDir: resolve(__dirname, 'fixtures/basic'),
+    rootDir,
-    dev: true
+    dev: true,
+    plugins: [
+      '~/plugins/watch.js'
+    ]
   }
   nuxt = new Nuxt(options)
   await new Builder(nuxt).build()
@@ -20,6 +28,29 @@ test.before('Init Nuxt.js', async t => {
   await nuxt.listen(port, 'localhost')
 })
 
+test('remove mixins in live reloading', async t => {
+  stdMocks.use()
+  await nuxt.renderRoute(url('/'))
+  t.true(stdMocks.flush().stdout.some(v => v === 'I am mixin\n'))
+
+  truncateSync(pluginPath)
+  await new Promise(async (resolve, reject) => {
+    let waitTimes = 0
+    while (!stdMocks.flush().stdout.some(v => ~v.indexOf('Compiled successfully'))) {
+      await Utils.waitFor(100) && waitTimes++
+      if (waitTimes === 20) {
+        reject(Error('Dev server doesn\'t reload after 2000ms'))
+      }
+    }
+    resolve()
+  })
+
+  await nuxt.renderRoute(url('/'))
+  t.false(stdMocks.flush().stdout.some(v => v === 'I am mixin\n'))
+
+  stdMocks.restore()
+})
+
 test('/stateless', async t => {
   const window = await nuxt.renderAndGetWindow(url('/stateless'))
   const html = window.document.body.innerHTML
@@ -37,5 +68,6 @@ test('/stateless', async t => {
 
 // Close server and ask nuxt to stop listening to file changes
 test.after('Closing server and nuxt.js', async t => {
+  writeFileSync(pluginPath, pluginContent)
   await nuxt.close()
 })

test/fixtures/basic/plugins/watch.js

@@ -0,0 +1,12 @@
+import Vue from 'vue'
+
+const Plugin = {
+  install(Vue) {
+    Vue.mixin({
+      created() {
+        console.log('I am mixin') // eslint-disable-line no-console
+      }
+    })
+  }
+}
+Vue.use(Plugin)