Fix hot-update.json & add tests

lib/render.js

@@ -49,10 +49,9 @@ export async function render (req, res) {
       /* istanbul ignore next */
       req.url = url
     }
-    /* istanbul ignore next */
     if (this.dev && req.url.indexOf(self.options.build.publicPath) === 0 && req.url.includes('.hot-update.json')) {
       res.statusCode = 404
-      return {html: ''}
+      return res.end()
     }
     const { html, error, redirected } = await this.renderRoute(req.url, context)
     if (redirected) {
@@ -66,7 +65,6 @@ export async function render (req, res) {
     res.end(html, 'utf8')
     return html
   } catch (err) {
-    /* istanbul ignore next */
     if (context.redirected) {
       console.error(err) // eslint-disable-line no-console
       return err

test/basic.dev.test.js

@@ -1,5 +1,6 @@
 import test from 'ava'
 import { resolve } from 'path'
+import rp from 'request-promise-native'
 const port = 4005
 const url = (route) => 'http://localhost:' + port + route
 
@@ -25,6 +26,15 @@ test('/stateless', async t => {
   t.true(html.includes('<h1>My component!</h1>'))
 })
 
+test('/_nuxt/test.hot-update.json should returns empty html', async t => {
+  try {
+    await rp(url('/_nuxt/test.hot-update.json'))
+  } catch (err) {
+    t.is(err.statusCode, 404)
+    t.is(err.response.body, '')
+  }
+})
+
 // Close server and ask nuxt to stop listening to file changes
 test.after('Closing server and nuxt.js', t => {
   server.close()

test/basic.test.js

@@ -1,6 +1,8 @@
 import test from 'ava'
 import { resolve } from 'path'
 import rp from 'request-promise-native'
+import stdMocks from 'std-mocks'
+
 const port = 4000
 const url = (route) => 'http://localhost:' + port + route
 
@@ -128,11 +130,20 @@ test('/error2 status code', async t => {
   try {
     await rp(url('/error2'))
   } catch (err) {
-    t.true(err.statusCode === 500)
+    t.is(err.statusCode, 500)
     t.true(err.response.body.includes('Custom error'))
   }
 })
 
+test('/redirect2 status code', async t => {
+  stdMocks.use()
+  await rp(url('/redirect2')) // Should console.error
+  stdMocks.restore()
+  const output = stdMocks.flush()
+  t.true(output.stderr.length >= 1)
+  t.true(output.stderr[0].includes('Error: NOPE!'))
+})
+
 // Close server and ask nuxt to stop listening to file changes
 test.after('Closing server and nuxt.js', t => {
   server.close()

test/fixtures/basic/middleware/redirect.js

@@ -0,0 +1,3 @@
+export default function ({ redirect }) {
+  redirect('/')
+}

test/fixtures/basic/pages/redirect2.vue

@@ -0,0 +1,10 @@
+<template></template>
+
+<script>
+export default {
+  middleware: 'redirect',
+  created () {
+    throw new Error('NOPE!')
+  }
+}
+</script>