should call onLoginError with error if authentication fails

tests/hooks/useTuitioClient.test.ts

@@ -82,6 +82,25 @@ describe("useTuitioClient", () => {
     );
   });
 
+  it("should call onLoginError with error if authentication fails", async () => {
+    (TuitioClient as jest.Mocked<any>).mockImplementation(() => ({
+      authenticate: jest.fn().mockRejectedValue(new Error("Login failed"))
+    }));
+
+    const onLoginError = jest.fn();
+    const { result } = renderHook(() =>
+      useTuitioClient({ onLoginSuccess: jest.fn(), onLoginFailed: jest.fn(), onLoginError })
+    );
+
+    await act(async () => {
+      try {
+        await result.current.login("user", "password");
+      } catch (error) {
+        expect(onLoginError).toHaveBeenCalledWith(error);
+      }
+    });
+  });
+
   it("should call invalidate when logout is called", () => {
     const { result } = renderHook(() =>
       useTuitioClient({