update dev dependencies ava, eslint, eslint-plugin-ava and migrate to ES modules

source/front/date-time-wrapper-test.js

@@ -1,5 +1,5 @@
 import test from 'ava'
-import DateTimeWrapper from './date-time-wrapper'
+import DateTimeWrapper from './date-time-wrapper.js'
 
 test('#getShortDate usual date', (t) => {
   const d = new DateTimeWrapper({ text: '2020-12-24T16:45:00Z' })

source/front/events-displayer-test.js

@@ -1,7 +1,7 @@
 import test from 'ava'
 import { JSDOM } from 'jsdom'
 
-import { displayEvents, displayErrorMessage } from './events-displayer'
+import { displayEvents, displayErrorMessage } from './events-displayer.js'
 
 let document
 

source/front/events-displayer.js

@@ -1,5 +1,5 @@
-import Formatter from './formatter'
-import { createAnchorElement } from './html-creator'
+import Formatter from './formatter.js'
+import { createAnchorElement } from './html-creator.js'
 
 export function displayEvents({ data, document, list }) {
   const locale = list.getAttribute('data-locale')

source/front/events-loader.js

@@ -1,5 +1,5 @@
-import { displayEvents, displayErrorMessage } from './events-displayer'
-import * as GraphqlWrapper from './graphql-wrapper'
+import { displayEvents, displayErrorMessage } from './events-displayer.js'
+import * as GraphqlWrapper from './graphql-wrapper.js'
 
 const NAME = '<wordpress-name>'
 

source/front/formatter-test.js

@@ -1,5 +1,5 @@
 import test from 'ava'
-import Formatter from './formatter'
+import Formatter from './formatter.js'
 
 test('#formatDate one date', (t) => {
   const date = Formatter.formatDate({

source/front/formatter.js

@@ -1,4 +1,4 @@
-import DateTimeWrapper from './date-time-wrapper'
+import DateTimeWrapper from './date-time-wrapper.js'
 
 export default class Formatter {
   static formatDate({ locale, timeZone, start, end, isShortOffsetNameShown }) {

source/front/graphql-wrapper.js

@@ -1,6 +1,6 @@
-import SessionCache from './session-cache'
+import SessionCache from './session-cache.js'
 import { request } from 'graphql-request'
-import DateTimeWrapper from './date-time-wrapper'
+import DateTimeWrapper from './date-time-wrapper.js'
 
 export function getUpcomingEvents({ url, limit }) {
   const query = `

source/front/html-creator-test.js

@@ -1,7 +1,7 @@
 import test from 'ava'
 import { JSDOM } from 'jsdom'
 
-import { createAnchorElement } from './html-creator'
+import { createAnchorElement } from './html-creator.js'
 
 let document
 

source/front/object-hash-wrapper-test.js

@@ -1,5 +1,5 @@
 import test from 'ava'
-import hash from './object-hash-wrapper'
+import hash from './object-hash-wrapper.js'
 
 test('#hash object', (t) => {
   t.is(hash({ foo: 'bar' }), 'a75c05bdca7d704bdfcd761913e5a4e4636e956b')

source/front/session-cache-test.js

@@ -1,5 +1,5 @@
 import test from 'ava'
-import SessionCache from './session-cache'
+import SessionCache from './session-cache.js'
 
 const fakeStorage = {
   elements: {},

source/front/session-cache.js

@@ -1,4 +1,4 @@
-import hash from './object-hash-wrapper'
+import hash from './object-hash-wrapper.js'
 
 const MAX_AGE_IN_MS = 120000