fix(isMobilePhone): update fr-DJ validation to restrict to 776-778 range

Author: Kartikeya-guthub

src/lib/isMobilePhone.js

@@ -102,7 +102,7 @@ const phones = {
   'fr-BJ': /^(\+229)\d{8}$/,
   'fr-CD': /^(\+?243|0)?(8|9)\d{8}$/,
   'fr-CM': /^(\+?237)6[0-9]{8}$/,
-  'fr-DJ': /^(?:\+253)?7\d{7}$/,
+  'fr-DJ': /^(?:\+253)?77[6-8]\d{5}$/,
   'fr-FR': /^(\+?33|0)[67]\d{8}$/,
   'fr-GF': /^(\+?594|0|00594)[67]\d{8}$/,
   'fr-GP': /^(\+?590|0|00590)[67]\d{8}$/,

test/validators.test.js

@@ -9862,37 +9862,54 @@ describe('Validators', () => {
       {
         locale: 'fr-DJ',
         valid: [
-          '77123456',
-          '75123456',
-          '76123456',
-          '74123456',
-          '78123456',
-          '+25377123456',
-          '+25375123456',
-          '+25376123456',
-          '+25374123456',
-          '+25378123456',
-        ],
-        invalid: [
-          '21123456',
-          '27123456',
-          '+25321123456',
-          '+25327123456',
-          '88123456',
-          '+25388123456',
-          '7712345',
-          '771234567',
-          '+253771234567',
-          '12345678',
-          '+25477123456',
-          '77-123456',
-          '77 123456',
-          'abcdefghi',
+          '77600000',
+          '77699999',
+          '77700000',
+          '77799999',
+          '77800000',
+          '77899999',
+          '77654321',
+          '77765432',
+          '77876543',
+          '+25377600000',
+          '+25377699999',
+          '+25377700000',
+          '+25377799999',
+          '+25377800000',
+          '+25377899999',
+        ],
+        invalid: [
+          '21600000',
+          '27600000',
+          '70600000',
+          '71600000',
+          '72600000',
+          '73600000',
+          '74600000',
+          '75600000',
+          '76600000',
+          '78600000',
+          '79600000',
+          '77500000',
+          '77900000',
+          '77000000',
+          '77100000',
+          '77599999',
+          '77999999',
+          '7760000',
+          '776000000',
+          '+2537760000',
+          '+253776000000',
+          '+25477600000',
+          '+25177600000',
+          '77 600000',
+          '77-600000',
+          '+253 77600000',
           '',
           '+253',
-          '+25377',
           '00000000',
-          '+25300000000',
+          'abcdefgh',
+          '77600000x',
         ],
       },
       {