Function assert

scripts/test-catalog-fetch.mjs:63–71

(condition, label, detail)

let passes = 0;

function assert(condition, label, detail) {
  if (condition) {
    passes++;
    console.log(`  PASS  ${label}`);
  } else {
    failures++;
    console.error(`  FAIL  ${label}${detail ? ' — ' + detail : ''}`);
  }
}

function section(name) {
  console.log(`\n=== ${name} ===`);