test(url-helpers): add href and label utility coverage

Author: DongDuong2001

src/lib/__tests__/url-helpers.test.ts

@@ -0,0 +1,33 @@
+import assert from "node:assert";
+import { describe, it } from "node:test";
+import {
+  ensureHref,
+  githubLabel,
+  linkedinLabel,
+  websiteLabel,
+} from "../url-helpers";
+
+describe("url-helpers", () => {
+  it("keeps http/https URLs unchanged", () => {
+    assert.strictEqual(ensureHref("https://example.com"), "https://example.com");
+    assert.strictEqual(ensureHref("http://example.com"), "http://example.com");
+  });
+
+  it("prefixes protocol for plain hostnames", () => {
+    assert.strictEqual(ensureHref("example.com"), "https://example.com");
+  });
+
+  it("maps email-like input to mailto", () => {
+    assert.strictEqual(ensureHref("user@example.com"), "mailto:user@example.com");
+  });
+
+  it("returns empty string for empty input", () => {
+    assert.strictEqual(ensureHref(""), "");
+  });
+
+  it("returns stable display labels", () => {
+    assert.strictEqual(websiteLabel(), "Portfolio");
+    assert.strictEqual(linkedinLabel(), "LinkedIn");
+    assert.strictEqual(githubLabel(), "GitHub");
+  });
+});