test: add test case for survey not found in metadata generation

apps/web/modules/survey/link/metadata.test.ts

@@ -168,6 +168,14 @@ describe("getMetadataForLinkSurvey", () => {
     expect(notFound).toHaveBeenCalled();
   });
 
+  test("calls notFound when survey is not found", async () => {
+    vi.mocked(getSurveyWithMetadata).mockResolvedValue(null as any);
+
+    await getMetadataForLinkSurvey(mockSurveyId);
+
+    expect(notFound).toHaveBeenCalled();
+  });
+
   test("handles metadata without openGraph property", async () => {
     const mockSurvey = {
       id: mockSurveyId,

apps/web/modules/survey/link/page.tsx

@@ -36,7 +36,12 @@ export const generateMetadata = async (props: LinkSurveyPageProps): Promise<Meta
   // Extract language code from URL params
   const languageCode = typeof searchParams.lang === "string" ? searchParams.lang : undefined;
 
-  return getMetadataForLinkSurvey(params.surveyId, languageCode);
+  try {
+    return await getMetadataForLinkSurvey(params.surveyId, languageCode);
+  } catch (error) {
+    logger.error(error, "Error fetching metadata for link survey");
+    notFound();
+  }
 };
 
 export const LinkSurveyPage = async (props: LinkSurveyPageProps) => {