test(security): cover url validation and form edge cases

Add and update tests for new security utilities and tightened UI behavior to prevent regressions in validation and error handling paths.

Made-with: Cursor

src/components/resume/shared/page-link.test.tsx

@@ -0,0 +1,34 @@
+import { cleanup, render, screen } from "@testing-library/react";
+import { afterEach, describe, expect, it } from "vite-plus/test";
+
+import { PageLink } from "./page-link";
+
+afterEach(cleanup);
+
+describe("PageLink", () => {
+  it("returns null when url is empty", () => {
+    const { container } = render(<PageLink url="" />);
+
+    expect(container.firstChild).toBeNull();
+  });
+
+  it("renders link with expected attributes and label", () => {
+    render(<PageLink url="https://example.com" label="Visit site" className="custom-link" />);
+
+    const link = screen.getByRole("link", { name: "Visit site" });
+
+    expect(link.getAttribute("href")).toBe("https://example.com");
+    expect(link.getAttribute("target")).toBe("_blank");
+    expect(link.getAttribute("rel")).toBe("noopener");
+    expect(link.className).toContain("inline-block");
+    expect(link.className).toContain("custom-link");
+  });
+
+  it("falls back to url text when label is missing", () => {
+    render(<PageLink url="https://fallback.dev" label="" />);
+
+    const link = screen.getByRole("link", { name: "https://fallback.dev" });
+
+    expect(link.getAttribute("href")).toBe("https://fallback.dev");
+  });
+});