Lists the tests a selection would run, without running them.

No browser, no bundle, no execution — the answer comes from parsing the declarations, so it returns in milliseconds even for a large suite. The same scanner file.ts#34 line targets use, and the same filter matcher a real run applies, so the preview is what would actually be selected.

import { search } from './search.ts';

// Defined, not invoked: reads and parses the project's test files.
async function whatMatches() {
  const { matches } = await search({ filter: 'Cart' });
  return matches.map((one) => `${one.fullName}  ${one.file}#${one.line}`);
}