extract two methods from main file

source/connector-mobilizon/front/events-loader.js

@@ -1,4 +1,4 @@
-import DateTimeWrapper from './date-time-wrapper'
+import Formatter from './formatter'
 import * as GraphqlWrapper from './graphql-wrapper'
 import { createAnchorElement } from './html-creator'
 
@@ -17,29 +17,15 @@ function displayEvents(data, list) {
     const br = document.createElement('br')
     li.appendChild(br)
 
-    const beginsOn = new DateTimeWrapper(events[i].beginsOn)
-    const endsOn = new DateTimeWrapper(events[i].endsOn)
-    let dateText = beginsOn.getShortDate()
-    dateText += ' ' + beginsOn.get24Time()
-    dateText += ' - '
-    if (!beginsOn.equalsDate(endsOn)) {
-      dateText += endsOn.getShortDate() + ' '
-    }
-    dateText += endsOn.get24Time()
-    const textnode = document.createTextNode(dateText)
+    const date = Formatter.formatDate({ start: events[i].beginsOn, end: events[i].endsOn })
+    const textnode = document.createTextNode(date)
     li.appendChild(textnode)
 
     if (events[i].physicalAddress) {
-      let location = ''
-      if (events[i].physicalAddress.description) {
-        location += events[i].physicalAddress.description
-      }
-      if (location && events[i].physicalAddress.locality) {
-        location += ', '
-      }
-      if (events[i].physicalAddress.locality) {
-        location += events[i].physicalAddress.locality
-      }
+      const location = Formatter.formatLocation({
+        description: events[i].physicalAddress.description,
+        locality: events[i].physicalAddress.locality
+      })
       if (location) {
         const brBeforeLocation = document.createElement('br')
         li.appendChild(brBeforeLocation)

source/connector-mobilizon/front/formatter-test.js

@@ -0,0 +1,27 @@
+import test from 'ava'
+import Formatter from './formatter'
+
+test('#formatDate one date', t => {
+  const date = Formatter.formatDate({ start: '2021-04-15T10:30:00Z', end: '2021-04-15T15:30:00Z' })
+  t.is(date, '15/04/2021 12:30 - 17:30')
+})
+
+test('#formatDate two dates', t => {
+  const date = Formatter.formatDate({ start: '2021-04-15T10:30:00Z', end: '2021-04-16T15:30:00Z' })
+  t.is(date, '15/04/2021 12:30 - 16/04/2021 17:30')
+})
+
+test('#formatLocation both parameters', t => {
+  const date = Formatter.formatLocation({ description: 'a', locality: 'b' })
+  t.is(date, 'a, b')
+})
+
+test('#formatLocation description only', t => {
+  const date = Formatter.formatLocation({ description: 'a' })
+  t.is(date, 'a')
+})
+
+test('#formatLocation locality only', t => {
+  const date = Formatter.formatLocation({ locality: 'a' })
+  t.is(date, 'a')
+})

source/connector-mobilizon/front/formatter.js

@@ -0,0 +1,31 @@
+import DateTimeWrapper from './date-time-wrapper'
+
+export default class Formatter {
+  
+  static formatDate({ start, end }) {
+    const startDateTime = new DateTimeWrapper(start)
+    const endDateTime = new DateTimeWrapper(end)
+    let dateText = startDateTime.getShortDate()
+    dateText += ' ' + startDateTime.get24Time()
+    dateText += ' - '
+    if (!startDateTime.equalsDate(endDateTime)) {
+      dateText += endDateTime.getShortDate() + ' '
+    }
+    dateText += endDateTime.get24Time()
+    return dateText
+  }
+
+  static formatLocation({ description, locality }) {
+    let location = ''
+    if (description) {
+      location += description
+    }
+    if (location && locality) {
+      location += ', '
+    }
+    if (locality) {
+      location += locality
+    }
+    return location
+  }
+}