test(Page): add unit test for content.__error rendering

Author: mr-baraiya

src/components/Page/__tests__/Page.test.js

@@ -7,10 +7,16 @@ import { render, screen } from "@testing-library/react";
 import { MemoryRouter } from "react-router";
 import Page from "../Page";
 
-// mock components that break tests
+// Mock components that cause unrelated failures
 jest.mock("../../Contributors/Contributors.jsx", () => () => <div />);
 jest.mock("../../PageLinks/PageLinks.jsx", () => () => <div />);
 
+// Mock react-router hook used inside Page
+jest.mock("react-router", () => ({
+  ...jest.requireActual("react-router"),
+  useLocation: () => ({ pathname: "/test", hash: "" }),
+}));
+
 describe("Page component", () => {
   it("renders error message when content.__error exists", () => {
     const content = {