Merge c530f81 into b162aee

moment · Apr 27, 2020 · d059847 · d059847
2 parents b162aee + c530f81
commit d059847
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diff --git a/src/lib/locale/locales.js b/src/lib/locale/locales.js
@@ -188,6 +188,12 @@ export function updateLocale(name, config) {
                 parentConfig = tmpLocale._config;
             }
             config = mergeConfigs(parentConfig, config);
+            if (tmpLocale == null) {
+                // updateLocale is called for creating a new locale
+                // Set abbr so it will have a name (getters return
+                // undefined otherwise).
+                config.abbr = name;
+            }
             locale = new Locale(config);
             locale.parentLocale = locales[name];
             locales[name] = locale;

diff --git a/src/test/moment/locale_update.js b/src/test/moment/locale_update.js
@@ -286,6 +286,14 @@ test('update existing locale', function (assert) {
     moment.updateLocale('de', null);
 });
 
+test('update non-existing locale', function (assert) {
+    moment.locale('en');
+    moment.updateLocale('dude', { months: ['Movember'] });
+    assert.equal(moment.locale(), 'dude');
+    assert.equal(moment().locale('dude').locale(), 'dude');
+    moment.defineLocale('dude', null);
+});
+
 test('reset locale', function (assert) {
     moment.locale('de');
     var resultBeforeUpdate = moment('2017-02-01').format('YYYY MMM MMMM');