Fixes #1021 undefined when abbreviate

Author: JirkaChadima

src/internal.js

@@ -214,13 +214,15 @@ export const cleanupInput = (input, replacements = [], options = {}) => {
   if (options.abbreviate && input.country_code && country2lang[input.country_code]) {
     for (let i = 0; i < country2lang[input.country_code].length; i++) {
       const lang = country2lang[input.country_code][i];
-      for (let j = 0; j < abbreviations[lang].length; j++) {
-        if (input[abbreviations[lang][j].component]) {
-          for (let k = 0; k < abbreviations[lang][j].replacements.length; k++) {
-            input[abbreviations[lang][j].component] = input[abbreviations[lang][j].component].replace(
-              new RegExp(`(^|\\s)${abbreviations[lang][j].replacements[k].src}\\b`),
-                `$1${abbreviations[lang][j].replacements[k].dest}`
-            );
+      if (abbreviations[lang]) {
+        for (let j = 0; j < abbreviations[lang].length; j++) {
+          if (input[abbreviations[lang][j].component]) {
+            for (let k = 0; k < abbreviations[lang][j].replacements.length; k++) {
+              input[abbreviations[lang][j].component] = input[abbreviations[lang][j].component].replace(
+                new RegExp(`(^|\\s)${abbreviations[lang][j].replacements[k].src}\\b`),
+                  `$1${abbreviations[lang][j].replacements[k].dest}`
+              );
+            }
           }
         }
       }

test/internal.spec.js

@@ -295,6 +295,13 @@ describe('address-formatter', () => {
       }, [], { abbreviate: true });
       expect(converted).toHaveProperty('platz', 'Bonn');
     });
+
+    it('should not crash for undefined abbreviations', () => {
+      const converted = addressFormatterInternals.cleanupInput({
+        country_code: 'JP'
+      }, [], { abbreviate: true });
+      expect(converted).toHaveProperty('country_code', 'JP');
+    });
   });
 
   describe('findTemplate', () => {