Add defaultValue tests and allow second arg string to be interpreted …

…as defaultValue (#1206)
i18next · Feb 13, 2019 · 69f7402 · 69f7402
1 parent 4e4c75b
commit 69f7402
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Showing 2 changed files with 16 additions and 5 deletions.
diff --git a/index.d.ts b/index.d.ts
@@ -485,7 +485,7 @@ declare namespace i18next {
     TInterpolationMap extends object = StringMap
   >(
     key: TKeys | TKeys[],
-    options?: TOptions<TInterpolationMap>,
+    options?: TOptions<TInterpolationMap> | string,
   ) => TResult;
 
   interface Resource {

diff --git a/test/typescript/t.test.ts b/test/typescript/t.test.ts
@@ -8,10 +8,6 @@ function basicUsage(t: i18next.TFunction) {
   t(['friend', 'tree'], { myVar: 'someValue' });
 }
 
-/**
- * Use of the exported TFunction in external utility methods such as
- *  NamespaceConsumer children t
- */
 function returnCasts(t: i18next.TFunction) {
   const s: string = t('friend'); // same as <string>
   const s2: string = t`friend`;
@@ -20,6 +16,21 @@ function returnCasts(t: i18next.TFunction) {
   const oa: object[] = t<object[]>('friend');
 }
 
+function defautValue(t: i18next.TFunction) {
+  t('translation:test', { defaultValue: 'test_en' });
+  t('translation:test', { defaultValue: 'test_en', count: 1 });
+  t('translation:test', {
+    defaultValue_plural: 'test_en_plural',
+    defaultValue: 'test_en',
+    count: 10,
+  });
+
+  // string (only) default value as second arg
+  //  https://www.i18next.com/translation-function/essentials#passing-a-default-value
+  //  https://github.com/i18next/i18next/blob/master/src/Translator.js#L66
+  t('translation:test', 'test_en');
+}
+
 function callsMethodWithOptionalArg(t: i18next.TFunction) {
   function displayHint(hint?: string) {
     return String(hint);