import test from "node:test";
import assert from "node:assert/strict";
import { extractTerminalPreview, removeTerminalPreview } from "../src/_filters/index.js";

test("Terminal previews: stop before the first subsequent Markdown heading at any level", () => {
  const renderedPost = `
    <h1 id="terminal-preview">Terminal preview</h1>
    <p>Plain Markdown preview text is supported.</p>
    <h2 id="findings">Findings</h2>
    <p>The article begins here.</p>
  `;

  assert.match(extractTerminalPreview(renderedPost), /Plain Markdown preview text/);
  assert.match(removeTerminalPreview(renderedPost), /^\n    <h2 id="findings">/);
});