사용자 로그인, 가입 처리

tests/unit/PreviewExport.spec.tsx

@@ -52,6 +52,15 @@ vi.mock("next/link", () => {
   };
 });
 
+vi.mock("next/navigation", () => {
+  return {
+    __esModule: true,
+    useRouter: () => ({
+      push: vi.fn(),
+    }),
+  };
+});
+
 describe("PreviewPage - ZIP Export", () => {
   it("프리뷰 헤더에 프로젝트 목록 링크가 노출되고 /projects 로 연결되어야 한다", () => {
     render(<PreviewPage />);
@@ -83,10 +92,18 @@ describe("PreviewPage - ZIP Export", () => {
     fireEvent.click(exportButton);
 
     await waitFor(() => {
-      expect(fetchMock).toHaveBeenCalledTimes(1);
+      expect(
+        fetchMock.mock.calls.some(
+          ([url, options]: any[]) => url === "/api/export" && options?.method === "POST",
+        ),
+      ).toBe(true);
     });
 
-    const [url, options] = fetchMock.mock.calls[0] as any;
+    const exportCall = fetchMock.mock.calls.find(
+      ([url, options]: any[]) => url === "/api/export" && options?.method === "POST",
+    ) as any;
+
+    const [url, options] = exportCall;
     expect(url).toBe("/api/export");
     expect(options.method).toBe("POST");
     expect(options.headers["Content-Type"]).toBe("application/json");