test(about.spec.js): add about test

tests/integration/specs/about.spec.js

@@ -0,0 +1,21 @@
+import About from '@/fragments/about/About.vue'
+import I18nBuilder from '@/i18n/i18n-builder'
+import { mount } from '@vue/test-utils'
+import AppLoader from '@/app-loader'
+import store from '@/store/store'
+
+// Solves the 'RegeneratorRuntime is not defined' issue according to
+// https://stackoverflow.com/questions/28976748/regeneratorruntime-is-not-defined
+import '@babel/polyfill'
+
+describe('About', () => {
+  var i18n = I18nBuilder.build()
+  it('should render about page', async (done) => {
+    await new AppLoader().fetchApiInitialData()
+    const wrapper = mount(About, {i18n: i18n, store: store })   
+
+    expect(wrapper.contains('.about-container')).toBe(true)
+    expect(wrapper.findComponent(About).exists()).toBe(true)
+    done()
+  })
+})