Adding test cases to cover issue maximodleon#77

.eslintrc.js

@@ -1,7 +1,8 @@
 module.exports = {
   extends: 'standard',
-  plugins: ['prettier'],
+  plugins: ['prettier', 'mocha'],
   rules: {
-    'prettier/prettier': 'error'
+    'prettier/prettier': 'error',
+    'mocha/no-exclusive-tests': 'error'
   }
 }

.gitignore

@@ -4,3 +4,4 @@ node_modules
 *.swp
 *.pdf
 test.js
+.nyc_output

package.json

@@ -4,7 +4,8 @@
   "description": "Telegram bot to get information for different things (gas prices, movies, etc..)",
   "main": "app.js",
   "scripts": {
-    "test": "echo \"Error: need to add some tests!\" && exit 0",
+    "test": "mocha --recursive",
+    "report": "nyc mocha --recursive",
     "start": "node app.js",
     "watch": "nodemon app.js",
     "lint": "standard",
@@ -29,9 +30,12 @@
     "axios": "0.18.0",
     "cron": "1.4.1",
     "dotenv": "6.0.0",
+    "eslint-plugin-mocha": "^5.2.0",
     "memoizee": "0.4.13",
+    "mocha": "^5.2.0",
     "mustache": "2.3.0",
     "npm": "6.3.0",
+    "nyc": "^13.1.0",
     "pdf2table": "0.0.2",
     "puppeteer": "1.6.0",
     "telegraf": "3.21.2",

test/helpers/testDatesHelper.js

@@ -0,0 +1,150 @@
+/* eslint-env mocha */
+const assert = require('assert')
+const datesHelper = require('../../helpers/dates-helper')
+
+const days = {
+  0: {
+    english: 'Sunday',
+    spanish: 'Domingo'
+  },
+  1: {
+    english: 'Monday',
+    spanish: 'Lunes'
+  },
+  2: {
+    english: 'Tuesday',
+    spanish: 'Martes'
+  },
+  3: {
+    english: 'Wednesday',
+    spanish: 'Miércoles'
+  },
+  4: {
+    english: 'Thursday',
+    spanish: 'Jueves'
+  },
+  5: {
+    english: 'Friday',
+    spanish: 'Viernes'
+  },
+  6: {
+    english: 'Saturday',
+    spanish: 'Sábado'
+  }
+}
+
+const months = {
+  0: {
+    english: 'January',
+    spanish: 'Enero'
+  },
+  1: {
+    english: 'February',
+    spanish: 'Febreo'
+  },
+  2: {
+    english: 'March',
+    spanish: 'Marzo'
+  },
+  3: {
+    english: 'April',
+    spanish: 'Abril'
+  },
+  4: {
+    english: 'May',
+    spanish: 'Mayo'
+  },
+  5: {
+    english: 'June',
+    spanish: 'Junio'
+  },
+  6: {
+    english: 'July',
+    spanish: 'Julio'
+  },
+  7: {
+    english: 'August',
+    spanish: 'Agosto'
+  },
+  8: {
+    english: 'September',
+    spanish: 'Septimebre'
+  },
+  9: {
+    english: 'October',
+    spanish: 'Octubre'
+  },
+  10: {
+    english: 'November',
+    spanish: 'Noviembre'
+  },
+  11: {
+    english: 'December',
+    spanish: 'Diciembre'
+  }
+}
+
+const hours = {
+  0: '12',
+  1: '01',
+  2: '02',
+  3: '03',
+  4: '04',
+  5: '05',
+  6: '06',
+  7: '07',
+  8: '08',
+  9: '09',
+  10: '10',
+  11: '11',
+  12: '12',
+  13: '01',
+  14: '02',
+  15: '03',
+  16: '04',
+  17: '05',
+  18: '06',
+  19: '07',
+  20: '08',
+  21: '09',
+  22: '10',
+  23: '11'
+}
+
+describe('Brower helper', () => {
+  it('should be able to match days of week correctly', () => {
+    for (let day in days) {
+      assert.strictEqual(
+        datesHelper.getDayString(
+          new Date(`${days[day].english} Oct ${14 + Number(day)} 2018`).getDay()
+        ),
+        days[day].spanish
+      )
+    }
+  })
+
+  it('should be able to match months correctly', () => {
+    for (let month in months) {
+      assert.strictEqual(
+        datesHelper.getMonthString(
+          new Date(`${months[month].english} 14 2018`).getMonth()
+        ),
+        months[month].spanish
+      )
+    }
+  })
+
+  it('should be able to convert from 24 hour format correctly', () => {
+    for (let hour in hours) {
+      assert.strictEqual(datesHelper.getHour(Number(hour)), hours[hour])
+    }
+  })
+
+  it('should be able to convert minutes correctly', () => {
+    assert.strictEqual(datesHelper.getMinutes(0), '00')
+    assert.strictEqual(datesHelper.getMinutes(1), '01')
+    assert.strictEqual(datesHelper.getMinutes(10), '10')
+    assert.strictEqual(datesHelper.getMinutes(20), '20')
+    assert.strictEqual(datesHelper.getMinutes(59), '59')
+  })
+})