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

const root = path.join(__dirname, '..');

function read(relativePath) {
  return fs.readFileSync(path.join(root, relativePath), 'utf8');
}

test('top bar model selector is removed and omitted selections use backend default', () => {
  const app = read('public/js/app.js');
  const selector = app.match(/function getSelectedModel\(\) \{[\s\S]*?\n\}/)[0];
  assert.doesNotMatch(selector, /global-model-select|gemini-2\.5-flash/);
  assert.match(selector, /return undefined/);
});