use eslint package of standradjs

Author: simonseyock

.eslintrc

@@ -2,6 +2,7 @@
   "extends": ["standard"],
   "rules": {
     "max-len": ["error", 120],
-    "no-console": "error"
+    "no-console": "error",
+    "import/no-webpack-loader-syntax": "off"
   }
 }

package.json

@@ -37,6 +37,7 @@
     "concurrently": "^3.6.0",
     "esdoc": "^1.1.0",
     "esdoc-standard-plugin": "^1.0.0",
+    "eslint": "^5.1.0",
     "guide4you-builder": "3.2.1",
     "guide4you-proxy": "github:KlausBenndorf/guide4you-proxy#v1.1.0",
     "http-server": "^0.11.1",
@@ -45,7 +46,7 @@
     "openlayers": "github:KlausBenndorf/ol3#g4u3_v5.0.2",
     "phantomjs-prebuilt": "2.1.14",
     "selenium-webdriver": "3.6.0",
-    "standard": "^11.0.1",
+    "eslint-config-standard": "^11.0.0",
     "wait-on": "^2.1.0"
   },
   "scripts": {

src/API.js

@@ -321,7 +321,7 @@ export class API extends ol.Object {
       }
       let loadErrorHandler = () => {
         source.un('vectorloaderror', loadEndHandler)
-        reject('vector load error')
+        reject(new Error('vector load error'))
       }
       source.once('vectorloadend', loadEndHandler)
       source.once('vectorloaderror', loadErrorHandler)

src/main.js

@@ -5,11 +5,11 @@ import '../images/g4u-logo.png'
 
 import 'polyfill!requestAnimationFrame,cancelAnimationFrame,Element.prototype.classList,URL'
 
-window.jQuery = window.jQuery || $
-
 import {G4UMap} from './G4UMap'
 import {Debug} from './Debug'
 
+window.jQuery = window.jQuery || $
+
 export function createMapInternal (element, clientConfPath, layerConfPath, options) {
   if (Array.isArray(options)) { // backwards compatibility
     options = { modules: options }
@@ -18,7 +18,7 @@ export function createMapInternal (element, clientConfPath, layerConfPath, optio
   return new Promise((resolve, reject) => {
     $(document).ready(() => {
       if (!$) {
-        reject('jQuery not available.')
+        reject(new Error('jQuery not available.'))
       } else {
         let v = $().jquery.split('.')
         if (+v[0] < 2 && +v[1] < 9) {
@@ -27,7 +27,7 @@ export function createMapInternal (element, clientConfPath, layerConfPath, optio
       }
 
       if (!ol) {
-        reject('OpenLayers not available.')
+        reject(new Error('OpenLayers not available.'))
       }
 
       $(element).empty()

src/utilities.js

@@ -88,7 +88,7 @@ export function asyncImageLoad (image, origUrl, finalUrl) {
   }
   return new Promise((resolve, reject) => {
     function onError () {
-      reject(`Error loading url ${finalUrl}`)
+      reject(new Error(`Error loading url ${finalUrl}`))
     }
     image.addEventListener('load', resolve)
     image.addEventListener('error', onError)

tests/layerSelector_spec.js

@@ -1,12 +1,8 @@
-import webdriver from 'selenium-webdriver'
+import {By, until} from 'selenium-webdriver'
 import phantomDriver from './customPhantomDriver'
-import test from 'selenium-webdriver/testing/'
+import {describe, before, after, it} from 'selenium-webdriver/testing/'
 import assert from 'selenium-webdriver/testing/assert.js'
 import config from './config.js'
-import until from 'selenium-webdriver/lib/until'
-
-let By = webdriver.By
-
 import {executeFunctionInPage, waitUntilMapReady} from './testUtils'
 
 // globals in browser
@@ -24,22 +20,22 @@ function waitUntilSetFeatureLayers (driver, featureLayers) {
     .then(waitUntilMapReady(driver))
 }
 
-test.describe('LayerSelector', function () {
+describe('LayerSelector', function () {
   this.timeout(config.mochaTimeout)
   let driver
 
-  test.before(function () {
+  before(function () {
     driver = phantomDriver()
     driver.manage().window().setSize(1200, 800)
     driver.manage().timeouts().implicitlyWait(config.seleniumTimeout)
     driver.manage().timeouts().pageLoadTimeout(config.seleniumTimeout)
   })
 
-  test.after(function () {
+  after(function () {
     driver.quit()
   })
 
-  test.it('should show a layerSelector', function (done) {
+  it('should show a layerSelector', function (done) {
     driver.get(config.testClient).then(
       waitUntilMapReady(driver)
     ).then(
@@ -62,7 +58,7 @@ test.describe('LayerSelector', function () {
     )
   })
 
-  test.it('should show a category button', function (done) {
+  it('should show a category button', function (done) {
     driver.get(config.testClient).then(
       waitUntilMapReady(driver)
     ).then(

tests/testUtils.js

@@ -14,21 +14,21 @@ export function waitUntilMapReady (driver) {
     driver.executeAsyncScript(function (callback) {
       setTimeout(function () {
         if (window.test) {
-          callback('READY')
+          callback(null)
         }
         if (!window.map) {
-          callback('NOEXIST')
+          callback(new Error('Map does not exist after 20 ms'))
         }
         const t = setTimeout(function () {
-          callback('NOREADY')
+          callback(new Error('Map not ready after 2000 ms'))
         }, 2000)
         window.map.asSoonAs('ready', true, function () {
           clearTimeout(t)
-          callback('READY')
+          callback(null)
         })
       }, 20)
-    }).then(function (val) {
-      if (val === 'READY') {
+    }).then(function (err) {
+      if (err === null) {
         fulfill()
       } else {
         driver.manage().logs().get('browser').then(function (logs) {
@@ -38,13 +38,7 @@ export function waitUntilMapReady (driver) {
             })
           }
         })
-        if (val === 'NOEXIST') {
-          reject('Map does not exist after 20 ms')
-        } else if (val === 'NOREADY') {
-          reject('Map not ready after 2000 ms')
-        } else {
-          reject('Unknown value')
-        }
+        reject(err)
       }
     })
   })