import assert from "node:assert/strict";
import test from "node:test";
import { extractMarkdownHeadings } from "../src/lib/markdown-headings.ts";

test("keeps markdown heading IDs tied to their source lines", () => {
  assert.deepEqual(
    extractMarkdownHeadings("# مقدمه\n\n## موضوع\n## موضوع"),
    [
      { id: "مقدمه", level: 1, text: "مقدمه", line: 1 },
      { id: "موضوع", level: 2, text: "موضوع", line: 3 },
      { id: "موضوع-2", level: 2, text: "موضوع", line: 4 },
    ],
  );
});