const { test } = require('node:test');
const assert = require('node:assert');
const fs = require('node:fs');
const path = require('node:path');

const html = fs.readFileSync(path.join(__dirname, '..', 'index.html'), 'utf8');
const opens = (html.match(/<div\b/g) || []).length;
const closes = (html.match(/<\/div>/g) || []).length;

test('HTML <div> tags are balanced', () => {
    assert.strictEqual(opens, closes, `Unbalanced divs: ${opens} opens vs ${closes} closes`);
});