test

amannn · Jan 26, 2025 · c4f299c · c4f299c
1 parent aac6bbd
commit c4f299c
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Showing 4 changed files with 26 additions and 4 deletions.
diff --git a/packages/next-intl/.size-limit.ts b/packages/next-intl/.size-limit.ts
@@ -10,7 +10,7 @@ const config: SizeLimitConfig = [
     name: "import {NextIntlClientProvider} from 'next-intl' (react-client)",
     import: '{NextIntlClientProvider}',
     path: 'dist/esm/production/index.react-client.js',
-    limit: '1 KB'
+    limit: '1.005 KB'
   },
   {
     name: "import * from 'next-intl' (react-server)",

diff --git a/packages/use-intl/.size-limit.ts b/packages/use-intl/.size-limit.ts
@@ -5,7 +5,7 @@ const config: SizeLimitConfig = [
     name: "import * from 'use-intl' (production)",
     import: '*',
     path: 'dist/esm/production/index.js',
-    limit: '12.985 kB'
+    limit: '12.955 kB'
   },
   {
     name: "import {IntlProvider, useLocale, useNow, useTimeZone, useMessages, useFormatter} from 'use-intl' (production)",

diff --git a/packages/use-intl/src/react/IntlProvider.test.tsx b/packages/use-intl/src/react/IntlProvider.test.tsx
@@ -149,3 +149,25 @@ it('does not merge messages in nested providers', () => {
 
   expect(onError.mock.calls.length).toBe(1);
 });
+
+it('can opt-out of messages inheritance', () => {
+  const onError = vi.fn();
+
+  function Component() {
+    const t = useTranslations();
+    return <span>{t('hello')}</span>;
+  }
+
+  render(
+    <IntlProvider locale="en" messages={{hello: 'Hey!'}} onError={onError}>
+      <Component />
+      <IntlProvider locale="en" messages={null}>
+        <Component />
+      </IntlProvider>
+    </IntlProvider>
+  );
+
+  screen.getByText('Hey!');
+  screen.getByText('hello');
+  expect(onError.mock.calls.length).toBe(1);
+});
diff --git a/packages/use-intl/src/react/IntlProvider.tsx b/packages/use-intl/src/react/IntlProvider.tsx
@@ -49,10 +49,10 @@ export default function IntlProvider({
     () => ({
       ...initializeConfig({
         locale, // (required by provider)
-        formats: formats || prevContext?.formats,
+        formats: formats === undefined ? prevContext?.formats : formats,
         getMessageFallback:
           getMessageFallback || prevContext?.getMessageFallback,
-        messages: messages || prevContext?.messages,
+        messages: messages === undefined ? prevContext?.messages : messages,
         now: now || prevContext?.now,
         onError: onError || prevContext?.onError,
         timeZone: timeZone || prevContext?.timeZone