feat: initial project setup with CLI, utils, and tests

tests/media.test.ts

@@ -0,0 +1,37 @@
+import { test } from "node:test";
+import assert from "node:assert/strict";
+import { buildMediaUrlRegex, DEFAULT_MEDIA_EXTENSIONS } from "../src/utils/media.js";
+
+test("default regex matches typical WordPress upload URLs", () => {
+  const re = buildMediaUrlRegex(DEFAULT_MEDIA_EXTENSIONS);
+  const text =
+    "see <img src=\"https://site.test/wp-content/uploads/2020/01/photo.jpg\"/> and " +
+    "https://site.test/wp-content/uploads/2020/01/doc.pdf?v=2 and ignore https://site.test/page";
+  const matches = text.match(re) ?? [];
+  assert.deepEqual(matches, [
+    "https://site.test/wp-content/uploads/2020/01/photo.jpg",
+    "https://site.test/wp-content/uploads/2020/01/doc.pdf?v=2",
+  ]);
+});
+
+test("regex is case-insensitive on extension", () => {
+  const re = buildMediaUrlRegex(["jpg"]);
+  assert.ok(re.test("https://x.test/a.JPG"));
+});
+
+test("regex respects custom extensions only", () => {
+  const re = buildMediaUrlRegex(["xyz"]);
+  assert.equal("https://x.test/a.jpg".match(re), null);
+  assert.ok(re.test("https://x.test/a.xyz"));
+});
+
+test("buildMediaUrlRegex throws on empty list", () => {
+  assert.throws(() => buildMediaUrlRegex([]), /at least one extension/);
+});
+
+test("regex stops at quotes and whitespace", () => {
+  const re = buildMediaUrlRegex(["png"]);
+  const text = `'https://x.test/a.png' "https://x.test/b.png"`;
+  const matches = text.match(re) ?? [];
+  assert.deepEqual(matches, ["https://x.test/a.png", "https://x.test/b.png"]);
+});