Function runOne

example/tests/gm_download_test.js:1047–1070

(t, idx, total)

  // ---------- Runner ----------
  async function runOne(t, idx, total) {
    setStatus(`running (${idx + 1}/${total}): ${t.name}`);
    if (!t.manual) showProgress(t.name);
    const title = `• ${t.name}`;
    const t0 = performance.now();
    try {
      logLine(`▶️ <b>${escapeHtml(t.name)}</b>`);
      await t.run();
      pass(`${title} (${fmtMs(performance.now() - t0)})`);
    } catch (e) {
      const extra = e && e.stack ? e.stack : String(e);
      const msg = String(e && e.message || e);
      if (msg.startsWith("SKIP:")) {
        // Soft outcome — count as skip, not as fail.
        skip(`${title} (${fmtMs(performance.now() - t0)}) — ${msg.slice(5).trim()}`);
      } else {
        fail(`${title} (${fmtMs(performance.now() - t0)})`, extra);
      }
    } finally {
      hideProgress();
      // Any leftover awaiting bar from a thrown-mid-flight test gets cleaned up.
      hideAwaiting();
    }
  }

  let running = false;
  function setAllButtonsDisabled(disabled) {