spec: serviceWorker registration with file scheme

spec/chromium-spec.coffee

@@ -5,7 +5,7 @@ path = require 'path'
 ws = require 'ws'
 
 {remote} = require 'electron'
-{BrowserWindow} = remote.require 'electron'
+{BrowserWindow, session} = remote.require 'electron'
 
 describe 'chromium feature', ->
   fixtures = path.resolve __dirname, 'fixtures'
@@ -56,6 +56,26 @@ describe 'chromium feature', ->
     it 'should not be empty', ->
       assert.notEqual navigator.language, ''
 
+  describe 'navigator.serviceWorker', ->
+    url = "file://#{fixtures}/pages/service-worker/index.html"
+    w = null
+
+    afterEach ->
+      w?.destroy()
+
+    it 'should register for file scheme', (done) ->
+      w = new BrowserWindow(show:false)
+      w.webContents.on 'ipc-message', (event, args) ->
+        if args[0] == 'reload'
+          w.webContents.reload()
+        else if args[0] == 'error'
+          done('unexpected error : ' + args[1])
+        else if args[0] == 'response'
+          assert.equal args[1], 'Hello from serviceWorker!'
+          session.defaultSession.clearStorageData {storages: ['serviceworkers']}, ->
+            done()
+      w.loadURL url
+
   describe 'window.open', ->
     @timeout 10000
 

spec/fixtures/pages/service-worker/index.html

@@ -0,0 +1,18 @@
+<script>
+  const ipcRenderer = require('electron').ipcRenderer;
+  navigator.serviceWorker.register('service-worker.js', {scope: './'}).then(function() {
+    if (navigator.serviceWorker.controller) {
+      var xhr = new XMLHttpRequest();
+      xhr.open('GET', 'http://dummy/echo');
+      xhr.setRequestHeader('X-Mock-Response', 'yes');
+      xhr.addEventListener('load', function() {
+        ipcRenderer.send('response', xhr.responseText);
+      });
+      xhr.send();
+    } else {
+      ipcRenderer.send('reload');
+    }
+  }).catch(function(error) {
+    ipcRenderer.send('error', error);
+  })
+</script>

spec/fixtures/pages/service-worker/service-worker.js

@@ -0,0 +1,9 @@
+self.addEventListener('fetch', function(event) {
+  var requestUrl = new URL(event.request.url);
+
+  if (requestUrl.pathname === '/echo' &&
+      event.request.headers.has('X-Mock-Response')) {
+    var mockResponse = new Response('Hello from serviceWorker!');
+    event.respondWith(mockResponse);
+  }
+});