implement unit tests with jest. configure it to match our specific needs. atm...

implement unit tests with jest. configure it to match our specific needs. atm no icons can be imported and have therefor been commented out in the component to be tested

.babelrc

+{
+  "plugins": ["@babel/plugin-syntax-dynamic-import"],
+  "env": {
+    "test": {
+      "plugins": ["dynamic-import-node"],
+      "presets": [
+        [
+          "@babel/preset-env",
+          {
+            "modules": "commonjs",
+            "targets": {
+              "node": "current"
+            }
+          }
+        ]
+      ]
+    }
+  }
+}

CHANGELOG.md

@@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.4.1] - 2020-09-29
+
+### Added
+
+- Add config for unit tests via jest. testfiles goto *tests/unit/specs/*test.js*
+
+### Changed
+
+- delete tab-folder with components. provided a computed prop to wait for conditional changes
+
 ## [1.4.0] - 2020-09-11
 
 ### Added

babel.config.js

+const fs = require('fs-extra')
+let extend = undefined
+
+/**
+ * The .babelrc file has been created to assist Jest for transpiling.
+ * You should keep your application's babel rules in this file.
+ */
+
+if (fs.existsSync('./.babelrc')) {
+  extend = './.babelrc'
+}
+
 module.exports = {
   presets: [
     '@quasar/babel-preset-app'
-  ]
+  ],
+  extends: extend
 }

jest.config.js

+module.exports = {
+  globals: {
+    __DEV__: true
+  },
+  setupFilesAfterEnv: [
+    // '<rootDir>/tests/unit/jest.setup.js'
+  ],
+  // noStackTrace: true,
+  // bail: true,
+  // cache: false,
+  // verbose: true,
+  // watch: true,
+  collectCoverage: false,
+  coverageDirectory: '<rootDir>/tests/unit/coverage',
+  collectCoverageFrom: [
+    '<rootDir>/src/**/*.vue',
+    '<rootDir>/src/**/*.js'
+    // '<rootDir>/src/**/*.ts',
+    // '<rootDir>/src/**/*.jsx'
+  ],
+  coverageThreshold: {
+    global: {
+    //  branches: 50,
+    //  functions: 50,
+    //  lines: 50,
+    //  statements: 50
+    }
+  },
+  testMatch: [
+    '<rootDir>/tests/unit/**/*.spec.js',
+    '<rootDir>/tests/unit/**/*.test.js'
+  ],
+  moduleFileExtensions: [
+    'vue',
+    'js',
+    'json'
+    // 'ts',
+    // 'tsx'
+  ],
+  moduleNameMapper: {
+    '^vue$': '<rootDir>/node_modules/vue/dist/vue.common.js',
+    '^test-utils$': '<rootDir>/node_modules/@vue/test-utils/dist/vue-test-utils.js',
+    '^quasar$': '<rootDir>/node_modules/quasar/dist/quasar.common.js',
+    '^~/(.*)$': '<rootDir>/$1',
+    '^@/(.*)$': '<rootDir>/src/$1',
+    '^src/(.*)$': '<rootDir>/src/$1'
+    // '.*css$': '<rootDir>/test/unit/utils/stub.css'
+  },
+  transform: {
+    '.*\\.vue$': 'vue-jest',
+    '.*\\.js$': 'babel-jest',
+    '.+\\.(css|styl|less|sass|scss|svg|png|jpg|ttf|woff|woff2)$': 'jest-transform-stub',
+    // use these if NPM is being flaky
+    // '.*\\.vue$': '<rootDir>/node_modules/@quasar/quasar-app-extension-testing-unit-jest/node_modules/vue-jest',
+    // '.*\\.js$': '<rootDir>/node_modules/@quasar/quasar-app-extension-testing-unit-jest/node_modules/babel-jest'
+  },
+  transformIgnorePatterns: [
+    '<rootDir>/node_modules/(?!quasar/lang)'
+  ],
+  snapshotSerializers: [
+    '<rootDir>/node_modules/jest-serializer-vue'
+  ]
+}

package.json

 {
-  "name": "viewer",
-  "version": "1.3.2",
+  "name": "@subugoe/qviewer",
+  "version": "1.4.1",
   "description": "Viewer for the modular framework to present digital editions",
   "productName": "EMo Viewer",
   "keywords": [
@@ -33,26 +33,24 @@
     "url": "https://gitlab.gwdg.de/subugoe/emo/Qviewer.git"
   },
   "private": false,
-  "publishConfig": {
-    "@subugoe:registry": "https://gitlab.gwdg.de/api/v4/projects/10921/packages/npm/"
-  },
   "dependencies": {
-    "@quasar/extras": "^1.9.5",
+    "@quasar/extras": "^1.9.7",
     "openseadragon": "^2.4.2",
-    "quasar": "^1.13.2",
+    "quasar": "^1.14.0",
     "vuedraggable": "^2.24.1"
   },
   "devDependencies": {
-    "@quasar/app": "^2.0.8",
+    "@quasar/app": "^2.1.0",
+    "@quasar/quasar-app-extension-testing-unit-jest": "^2.0.0",
     "autoprefixer": "9.8.6",
     "babel-eslint": "^10.1.0",
-    "eslint": "^7.8.1",
+    "eslint": "^7.10.0",
     "eslint-config-airbnb-base": "^14.2.0",
     "eslint-loader": "^4.0.2",
-    "eslint-plugin-import": "^2.22.0",
-    "eslint-plugin-vue": "^6.2.2",
+    "eslint-plugin-import": "^2.22.1",
+    "eslint-plugin-vue": "^7.0.0",
     "node-sass": "^4.14.1",
-    "sass": "^1.26.10",
+    "sass": "^1.26.11",
     "sass-loader": "8.0.2",
     "stylelint": "^13.7.2",
     "stylelint-config-sass-guidelines": "^7.1.0"
@@ -67,10 +65,24 @@
   "resolutions": {
     "@babel/parser": "7.7.5"
   },
+  "unit-jest": {
+    "runnerCommand": "jest"
+  },
+  "@quasar/testing-unit-jest": {
+    "babel": "babelrc",
+    "options": [
+      "scripts",
+      "SFC"
+    ]
+  },
   "scripts": {
     "build": "quasar build --modern",
     "dev": "quasar dev --modern",
     "lint": "eslint --ext .js,.vue src",
-    "lint:scss": "node_modules/.bin/stylelint 'src/**/*.{scss,vue}'"
+    "lint:scss": "node_modules/.bin/stylelint 'src/**/*.{scss,vue}'",
+    "test:unit": "jest --updateSnapshot"
+  },
+  "publishConfig": {
+    "@subugoe:registry": "https://gitlab.gwdg.de/api/v4/projects/10921/packages/npm/"
   }
 }

src/components/header.vue

@@ -22,14 +22,12 @@
           justify-md-start
           justify-xs-center
           row-sm"
-        :config="config"
         :itemurls="itemurls"
+        :labels="config.labels"
         :manifests="manifests"
       />
 
       <ToggleIndex v-if="config.headers.toggle"
-        :config="config"
-        :panels="panels"
         class="
           col
           col-md-auto
@@ -38,7 +36,7 @@
           content-sm-center
           justify-sm-evenly
           row-sm"
-        :imageurl="imageurl"
+        :panels="panels"
       />
     </div>
   </q-header>

src/components/language.vue

@@ -6,8 +6,8 @@
       title="Change language"
       >
       <q-icon
-        size="md"
         :name="fasLanguage"
+        size="md"
       />
 
       <q-menu
@@ -15,14 +15,13 @@
         fit
         self="center middle"
         >
-        <!-- FIXME: remove inline style -->
-        <q-list style="min-width: 100px;">
+        <q-list>
           <q-item clickable v-close-popup>
-            <q-item-section>EN</q-item-section>
+            <q-item-section>DE</q-item-section>
           </q-item>
 
           <q-item clickable v-close-popup>
-            <q-item-section>DE</q-item-section>
+            <q-item-section>{{ lang }}</q-item-section>
           </q-item>
         </q-list>
       </q-menu>
@@ -35,6 +34,11 @@ import { fasLanguage } from '@quasar/extras/fontawesome-v5';
 
 export default {
   name: 'Language',
+  data() {
+    return {
+      lang: 'EN',
+    };
+  },
   created() {
     this.fasLanguage = fasLanguage;
   },

src/components/metadata.vue

 <template>
-  <div>
+  <div class="scroll-panel">
     <!-- Collection-->
     <q-list v-if="Object.keys(collection).length">
       <q-item>
@@ -53,7 +53,7 @@
 
       <q-item>
         <q-item-section>
-          <q-item-label overline class="text-uppercase">Year:</q-item-label>
+          <q-item-label overline class="text-uppercase">Year of creation:</q-item-label>
           <q-item-label>{{ date }}</q-item-label>
         </q-item-section>
       </q-item>
@@ -67,7 +67,7 @@
 
       <q-item>
         <q-item-section>
-          <q-item-label overline class="text-uppercase">Location:</q-item-label>
+          <q-item-label overline class="text-uppercase">Current location:</q-item-label>
           <q-item-label>{{ location }}</q-item-label>
         </q-item-section>
       </q-item>

src/components/tab-panels/metadatatab.vue

-<template>
-  <div class="scroll-panel">
-    <Metadata v-if="manifests.length"
-      :collection="collection"
-      :itemlabel="itemlabel"
-      :labels="labels"
-      :language="language"
-      :manifests="manifests"
-    />
-  </div>
-</template>
-
-<script>
-import Metadata from '@/components/metadata.vue';
-
-export default {
-  props: {
-    collection: Object,
-    itemlabel: String,
-    labels: Object,
-    language: String,
-    manifests: Array,
-  },
-  components: {
-    Metadata,
-  },
-};
-</script>

src/components/tab-panels/treeviewtab.vue

-<template>
-  <Tree v-if="tree.length && manifests.length"
-    :manifests="manifests"
-    :tree="tree"
-  />
-</template>
-
-<script>
-import Tree from '@/components/tree.vue';
-
-export default {
-  props: {
-    tree: Array,
-    manifests: Array,
-  },
-  components: {
-    Tree,
-  },
-};
-</script>

src/components/tree.vue

@@ -6,6 +6,7 @@
       node-key="label"
       :expanded.sync="expanded"
       :nodes="tree"
+      :selected-color="$q.dark.isActive ? 'grey' : ''"
       :selected.sync="selected"
       >
       <template v-slot:default-body={node}>

src/config/panels.js

 import Content from '@/components/content.vue';
-import Metadatatab from '@/components/tab-panels/metadatatab.vue';
+import Metadata from '@/components/metadata.vue';
 import OpenSeadragon from '@/components/openseadragon.vue';
-import Treeviewtab from '@/components/tab-panels/treeviewtab.vue';
+import Treeview from '@/components/tree.vue';
+
 import { v4 as uuidv4 } from 'uuid';
 
 // -- Panels --
@@ -38,11 +39,11 @@ export default {
   data: () => ({
     components: {
       1: {
-        component: Treeviewtab,
+        component: Treeview,
         label: 'Contents',
       },
       2: {
-        component: Metadatatab,
+        component: Metadata,
         label: 'Metadata',
       },
       3: {
@@ -69,7 +70,7 @@ export default {
     },
 
     setupPanels() {
-      // will change all id => component
+      // will change all ids => component
       this.panels = this.panels.map((item) => {
         const newConnectors = item.connector.map(
           (c) => (typeof c === 'number' ? this.findComponent(c) : c),
@@ -115,7 +116,7 @@ export default {
       const component = this.findComponent([idC]);
 
       if (from !== to) {
-        // Add the componet to the new panel
+        // Add the component to the new panel
 
         this.panels[to].connector.push(component);
 

src/css/responsive-heights.scss

 @mixin makeResponsiveHeight {
-  $sizesSreen: ('400px': '26vh','450px': '34vh', '500px': '41vh', '550px': '46vh', '600px': '50vh', '630px': '53vh', '660px': '55vh', '700px': '58vh', '750px': '61vh', '800px': '63vh', '850px': '66vh', '900px': '67vh', '980px': '70vh', '1200px': '75vh', '1300px': '77vh', '1800px': '83vh');
+  $screenSizes: ("400px": "26vh","450px": "34vh", "500px": "41vh", "550px": "46vh", "600px": "50vh", "630px": "53vh", "660px": "55vh", "700px": "58vh", "750px": "61vh", "800px": "63vh", "850px": "66vh", "900px": "67vh", "980px": "70vh", "1200px": "75vh", "1300px": "77vh", "1800px": "83vh");
 
-  @each $minheight, $height in $sizesSreen {
+  @each $minheight, $height in $screenSizes {
     @media (min-height: #{$minheight}) {
       height: #{$height};
     }

src/index.template.html

@@ -18,9 +18,7 @@
 
   <body>
     <noscript>
-      <strong>We're sorry but TextViewer doesn't work properly without JavaScript enabled.
-        Please enable it to continue.
-      </strong>
+      <strong>We're sorry but TextViewer doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
     </noscript>
 
     <script id="emo-config" type="application/json">

src/mixins/navigation.js

 export default {
   props: {
-    config: Object,
     itemurls: Array,
+    labels: Object,
     manifests: Array,
   },
   data() {
@@ -41,14 +41,14 @@ export default {
 
       return this.sequenceindex < this.sequencecount - 1
       && lastindexes[this.sequenceindex] === this.itemindex
-        ? `Next ${this.config.labels.manifest}`
-        : `Next ${this.config.labels.item}`;
+        ? `Next ${this.labels.manifest}`
+        : `Next ${this.labels.item}`;
     },
 
     captionprev() {
       return this.sequenceindex > 0 && this.firstiteminsequence === this.itemindex
-        ? `Prev ${this.config.labels.manifest}`
-        : `Prev ${this.config.labels.item}`;
+        ? `Prev ${this.labels.manifest}`
+        : `Prev ${this.labels.item}`;
     },
 
     computedsequenceindex() {

src/views/mainview.vue

 <template>
   <section>
-    <div class="row panels-target">
-      <div v-for="(p, i) in panels" :key="`pc${i}`" v-show="p.show"
+    <div v-if="ready" class="row panels-target">
+      <div v-for="(p, i) in panels" :key="`pc${i}`" v-show="p.show && p.connector.length"
         class="col-12 col-sm-6 col-md-3"
         >
         <Toolbar :heading="p.panel_label" />
 
         <q-separator />
 
-        <div v-if="p.connector.length != 0">
-          <!-- shows the nested tab components -->
+        <div>
+          <!-- shows the nested tabs -->
           <q-card v-if="p.connector.length > 1" flat>
             <div class="tabs-container">
-              <q-tabs v-for="(tab, i) in p.connector" :key="`pt${i}`"
+              <q-tabs class="content-tabs" v-for="(tab, i) in p.connector" :key="`pt${i}`"
                 :active-bg-color="$q.dark.isActive ? 'bg-black' : 'bg-grey-4'"
-                class="content-tabs"
                 v-model="p.tab_model"
                 >
                 <q-tab :name="`tab${i}`" :label="tab.label" />
@@ -24,20 +23,15 @@
             <q-separator />
 
             <q-tab-panels v-model="p.tab_model" animated class="content-panel" keep-alive>
-              <q-tab-panel v-for="(tab, i) in p.connector"
-                :key="`co${i}`"
-                :name="`tab${i}`"
-                >
-                <component :is="tab.component" v-bind="componentProps[tab.id]" />
+              <q-tab-panel v-for="(tab, i) in p.connector" :key="`co${i}`" :name="`tab${i}`">
+                <component :is="tab.component" :key="keys[tab.id]" v-bind="$props" />
               </q-tab-panel>
             </q-tab-panels>
           </q-card>
 
           <!-- shows the panels -->
-          <div v-else  class="q-pa-md q-gutter-sm overflow-hidden">
-            <component v-if="p.connector.length === 1" :is="p.connector[0].component"
-              v-bind="componentProps[p.connector[0].id]"
-              />
+          <div v-else-if="p.connector.length === 1" class="q-pa-md q-gutter-sm overflow-hidden">
+            <component :is="p.connector[0].component" :key="keys[p.connector[0].id]" v-bind="$props" />
           </div>
         </div>
       </div>
@@ -50,11 +44,6 @@ import Toolbar from '@/components/toolbar.vue';
 
 export default {
   name: 'MainView',
-  // watch: {
-  //   '$q.dark.isActive'(val) {
-  //     console.log(val ? 'On dark mode' : 'On light mode');
-  //   },
-  // },
   components: {
     Toolbar,
   },
@@ -72,32 +61,11 @@ export default {
     tree: Array,
   },
   computed: {
-    componentProps() {
-      return {
-        1: {
-          manifests: this.manifests,
-          tree: this.tree,
-        },
-        2: {
-          collection: this.collection,
-          config: this.config,
-          itemlabel: this.itemlabel,
-          labels: this.labels,
-          language: this.language,
-          manifests: this.manifests,
-        },
-        3: {
-          imageurl: this.imageurl,
-          key: this.imageurl,
-        },
-        4: {
-          contenturl: this.contenturl,
-          fontsize: this.fontsize,
-          key: this.contenturl,
-          manifests: this.manifests,
-          request: this.request,
-        },
-      };
+    ready() {
+      return Object.keys(this.collection).length && this.manifests.length && this.tree.length;
+    },
+    keys() {
+      return { 3: this.imageurl, 4: this.contenturl };
     },
   },
 };

tests/unit/loaders/jest-loader.js

+const fs = require('fs')
+const loaderUtils = require('loader-utils')
+const path = require('path')
+
+module.exports = async function (source) {
+  const options = loaderUtils.getOptions(this)
+
+  const filename = path.parse(this.resourcePath).name
+
+  const extension = (options && options.extension) || '_jest.spec.js'
+  const dir = `${this.context}/unit`
+  console.log(`Created test file: ${filename}`)
+  if (!fs.existsSync(dir)){
+    fs.mkdirSync(dir);
+  }
+  const code = source.replace(/\n{2,}/, '')
+  const dest = `${dir}/${filename}${extension}`
+  fs.writeFileSync(dest, code)
+  return `<!-- Created test file: ${filename} -->`
+}

tests/unit/specs/language.test.js

+import LANGUAGE from '@/components/language.vue'
+
+jest.mock('@quasar/extras/fontawesome-v5', () => '')
+
+describe('Language component', () => {
+  it('has a data prop "EN"', () => {
+    const lang = LANGUAGE.data()
+
+    expect(lang.lang).toBe('EN')
+  })
+})

tests/unit/utils/index.js

+// this is mapped in jest.config.js to resolve @vue/test-utils
+import { createLocalVue, shallowMount } from 'test-utils'
+
+import Vuex from 'vuex'
+import VueRouter from 'vue-router'
+import Quasar, { Cookies } from 'quasar'
+
+const mockSsrContext = () => {
+  return {
+    req: {
+      headers: {}
+    },
+    res: {
+      setHeader: () => undefined
+    }
+  }
+}
+
+// https://eddyerburgh.me/mock-vuex-in-vue-unit-tests
+export const mountQuasar = (component, options = {}) => {
+  const localVue = createLocalVue()
+  const app = {}
+
+  localVue.use(Vuex)
+  localVue.use(VueRouter)
+  localVue.use(Quasar)
+  const store = new Vuex.Store({})
+  const router = new VueRouter()
+
+  if (options) {
+    const ssrContext = options.ssr ? mockSsrContext() : null
+
+    if (options.cookies) {
+      const cookieStorage = ssrContext ? Cookies.parseSSR(ssrContext) : Cookies
+      const cookies = options.cookies
+      Object.keys(cookies).forEach(key => {
+        cookieStorage.set(key, cookies[key])
+      })
+    }
+
+    if (options.plugins) {